Rabbitmq jobs
...Technical & Non-Functional Requirements ### 2.1 Performance & Scalability * **NFR-1.1 Concurrent Chats:** The chat gateway must handle high concurrency with low latency (<500ms message delivery for real-time messages). * **NFR-1.2 Asynchronous Worker Processing:** Message generation for automated profiles must be decoupled from the primary API using a distributed queue (e.g., Redis Pub/Sub, RabbitMQ, or Celery) to prevent API blocking. * **NFR-1.3 Batch Database Ingestion:** The database architecture must support bulk import operations (via CSV or multi-row SQL execution) for seeding thousands of regional profiles. ### 2.2 Database & Data Storage * **NFR-2.1 Conversation Persistence:** All incoming and outgoing messages must be stored in a relational or documen...
...financial logs, automated tax tracking, and audit trail generation. * Automated compliance checks, real-time Anti-Money Laundering (AML) transaction flags, and self-exclusion verification tools. * End-to-end data encryption (TLS/SSL, AES-256), HMAC request signing, and automated backup/disaster recovery workflows. * Ideal Skills: Node.js, Python (FastAPI/Django), Go, Java, Apache Kafka, RabbitMQ, Redis, PostgreSQL. PROJECT B: Integrated Regulatory Management System (IRMS) * Goal: A standalone enterprise workflow automation portal and Electronic Document & Records Management System (EDRMS). * Core Deliverables: * Public-facing online licensing portal for application submissions, multi-stage approval workflows, and fee payment processing. * Centralized, searchab...
...should be designed with APIs for: VoIP/SIP providers Direct Switch SMS gateways CRM systems WhatsApp/other messaging platforms where applicable Webhooks Third-party applications 8. Suggested Technology Backend: Node.js / NestJS Frontend: React.js / Mobile: Flutter or React Native Desktop: Electron Database: PostgreSQL + Redis Real-time: WebSocket Telephony: SIP / WebRTC / RTP Queue: Redis/RabbitMQ Infrastructure: Docker + Linux 9. Security & Scalability The system should support: JWT/OAuth authentication RBAC permissions API rate limiting Encryption Secure SIP/WebRTC configuration Fraud prevention controls Call/SMS usage limits Detailed audit logs Horizontal scaling High availability Monitoring and alerting 10. Expected Deliverables Complete source code Web admin panel ...
I'm seeking a specialist with deep knowledge of JVM internals, JDK 17 source code, and middleware technologies like Apache Kafka, RabbitMQ, and Zookeeper. Key Tasks: - Performance tuning for Garbage Collection, Memory Management, and Thread Performance. - Compatibility adaptation to ensure seamless integration with existing systems. - Kernel-level troubleshooting for any underlying issues affecting performance. Ideal Skills and Experience: - Extensive experience with JDK 17 and its performance tuning. - Strong understanding of Apache Kafka, RabbitMQ, and Zookeeper. - Proficient in kernel-level debugging and troubleshooting. - Ability to analyze and optimize complex middleware interactions. Looking for a candidate who can deliver efficient and reliable performance imp...
...from multiple producers, queues them reliably, and routes them to downstream consumers with guaranteed delivery ordering. The service needs to handle backpressure gracefully, support consumer groups, and expose a clean internal API for publishing and subscribing to topics. This is purely a backend/messaging-infrastructure build — no UI involved. Key requirements: • Strong experience with Kafka, RabbitMQ, or a comparable message broker • Solid understanding of event-driven architecture and idempotent consumers • Experience designing internal pub/sub or queueing APIs • Comfortable working against a fixed one-week delivery window Deliverables: • Working event streaming/queueing service with producer and consumer interfaces • Documented topic/que...
Here's a professional ...experience is a plus) Familiarity with Git version control Knowledge of dependency injection, services, and Symfony best practices Experience writing clean, maintainable, and well-documented code Unit and functional testing (PHPUnit) Nice to Have: Domain-Driven Design (DDD) and hexagonal architecture Front-end skills (Twig, JavaScript, React, or Vue) Docker and CI/CD experience Message queue systems (RabbitMQ, Symfony Messenger) Responsibilities: Develop and maintain backend features Design and optimize database queries Build and integrate APIs Write tests and ensure code quality Collaborate with the team and meet project deadlines Please share your portfolio, relevant Symfony projects, and estimated availability. Provide your hourly rate or fixed-...
...database connections and application resources, which can affect or shut down the complete HRMS application. We need to separate the biometric device communication layer from the HRMS application and build an independently scalable architecture. Target architecture: Independent Biometric Device Gateway Persistent TCP/IP device connections Multiple Gateway servers with load balancing Kafka or RabbitMQ message queue Redis for device connection/status management Separate data ingestion workers Separate attendance processing workers Secure APIs between Device Platform and HRMS Existing ASP.NET Web Forms HRMS to remain operational Architecture designed to scale toward 100,000+ biometric devices The key requirement is that heavy biometric device traffic must never bring down or sig...
I am looking for senior full stack developer. require skills: Node.js, Python, Typescript, React, , PostgresSQL, MySQL, MongoDB, AWS, Devops, Kafka, RabbitMQ, Docker, Kubernetes, CI/CD budget: competitive budget
...most secure and efficient approach to protect the aged accounts while reducing proxy bandwidth costs to near-zero?Is there any technical or security risk to the aged accounts if the same account alternates between Path 1 (via browser automation) and Path 2 (via direct HTTP POST requests with generated signatures)?What specific libraries, tech stack, and queuing mechanisms (e.g., Celery, Redis, RabbitMQ, Asyncio) do you propose to guarantee the absolute stability of 500+ concurrent processes?Thank you, and we look forward to reviewing your technical proposals....
...independent marketplace-integration services — Selling API is the first, live today — each a self-contained .NET section with its own API, background workers, and data store, talking to a specific marketplace's API (Amazon SP-API now; Amazon Ads, Mirakl, and eBay next, same pattern repeated per marketplace). You'll do: - Build and maintain the REST API, background workers, Postgres/Mongo data layer, RabbitMQ messaging - Stand up the next marketplace sections (Ads, Mirakl, eBay) following the same tenant-agnostic, decoupled architecture - Work directly with marketplace APIs — auth, rate limits, webhooks/notifications, data sync Stack: C#/.NET, EF Core (PostgreSQL), MongoDB, Redis, .NET Aspire for local dev, GitLab CI/CD, Docker/Kubernetes. You should...
...Required qualifications: * Strong Java and Spring Boot experience * REST API development * Spring Data JPA and Hibernate * PostgreSQL or MySQL * Spring Security, JWT, or OAuth * Git and GitHub * Excellent spoken and written English * Strong communication and problem-solving abilities * Reliability and ability to meet agreed deadlines Additional skills are helpful: * Docker * Microservices * Redis, RabbitMQ, or Kafka * WebSockets * AWS, Azure, or Google Cloud * CI/CD pipelines To apply, please provide: 1. A short introduction and summary of your Java experience 2. Your years of experience with Spring Boot 3. Your GitHub profile or relevant project examples 4. Your hourly rate and weekly availability 5. A short voice or video introduction in English 6. The word “SPRING&r...
...building backend systems in production, with real ownership after launch - Node.js in depth. This is your primary language, not something you picked up recently. - MongoDB at scale, including sharding, indexing, and query optimization - Hands-on IoT or real-time telemetry experience. Device fleets, continuous data streams, connection management at scale. Hard requirement. - Message queues (MQTT, RabbitMQ, Kafka, or equivalent), REST and webhook integrations - You have taken a system from small scale to thousands of concurrent connected devices and you remember exactly what broke - Healthcare or safety-critical systems experience is a strong advantage - You can tell a non-technical founder a timeline is wrong, and explain why in plain language - Reliable 8 to 10 hours per week, 24...
...problems, this is for you. Required Skills & Experience: Golang (Senior Level): Deep understanding of backend architecture, concurrency (goroutines/channels), and performance optimization. API & HTTP Management: Strong experience with handling complex HTTP requests, custom headers, cookies, and maintaining stable sessions. Queue Systems: Experience with message brokers and task queues (e.g., Redis, RabbitMQ) for managing high-volume concurrent tasks. Traffic Analysis: Ability to analyze HAR (HTTP Archive) files to understand and replicate exact request flows within the Go code. Browser Automation (Optional but preferred): Familiarity with CDP (Chrome DevTools Protocol) tools like chromedp or rod in Go. What You Will Do: Analyze the existing Go source code to understand t...
...will supply sample data and the business objective as soon as the engagement starts; your task is to design the architecture, train the model, and hand over reproducible training code together with saved weights and concise documentation. Second, the model has to fit smoothly into an existing Java + Vert.x micro-service landscape. The runtime environment already speaks to “any” message queue (RabbitMQ is in place, yet the design should stay broker-agnostic), so the model-serving endpoint has to publish and consume messages accordingly. Apache NiFi + Apache Camel will orchestrate inter-service communication and system-to-system integration, and you need to have used both so you can move fastest with different iterations of the project. Deliverables • Te...
Seeking a RabbitMQ SME & Production Support Specialist to support enterprise customers with the day-to-day reliability, troubleshooting, and operational health of their RabbitMQ platforms. This role is focused on hands-on production support — keeping clusters healthy, resolving incidents quickly, and helping customers avoid repeat issues — rather than greenfield architecture or long-term platform strategy. This role is intentionally scoped to accommodate two levels of seniority: Senior Production Support Engineer profile (deep troubleshooting, incident response, tuning), or Support Engineer profile (hands-on operations, monitoring, day-to-day maintenance) Candidates with strength in either profile will be considered. Scope, responsibility, and rate will be al...
...for stages, secrets/OIDC auth to AWS, naming) so onboarding a new service isn't a fundamentally different process depending on which repo host it lives in 2. Data & Messaging Layer Amazon RDS provisioning (Postgres) — Multi-AZ, parameter groups, backup/retention policy, private subnet placement MongoDB — either self-managed on ECS/EC2 or Atlas integration (your recommendation on tradeoffs) RabbitMQ — Amazon MQ or containerized on ECS, with HA considerations Amazon SQS — queue-based decoupling between services where appropriate Amazon SES — transactional email sending, domain verification, DKIM/SPF setup 3. Storage, DNS & Edge S3 buckets for static assets, build artifacts, and application storage (proper bucket policies, versionin...
Deep expertise in any ONE of Python, Java, Go, Rust, Node.js, C, or C++ as core backend language, plus working knowledge of a second backend language. Must have built and operated production microservices or event-driven systems using Kafka, RabbitMQ, or gRPC on AWS or GCP with Docker and basic Kubernetes. Should have integrated at least one AI/LLM API into a real, shipped product feature. Comfortable with one relational and one NoSQL database (Redis a plus). Must state a clear, quantified before/after metric on their resume. Prior experience working with remote or international clients required. Exposure to secure data handling or compliance (PCI DSS, HIPAA, SOC2) is a plus.
...for stages, secrets/OIDC auth to AWS, naming) so onboarding a new service isn't a fundamentally different process depending on which repo host it lives in 2. Data & Messaging Layer Amazon RDS provisioning (Postgres) — Multi-AZ, parameter groups, backup/retention policy, private subnet placement MongoDB — either self-managed on ECS/EC2 or Atlas integration (your recommendation on tradeoffs) RabbitMQ — Amazon MQ or containerized on ECS, with HA considerations Amazon SQS — queue-based decoupling between services where appropriate Amazon SES — transactional email sending, domain verification, DKIM/SPF setup 3. Storage, DNS & Edge S3 buckets for static assets, build artifacts, and application storage (proper bucket policies, versionin...
Here's a professional ...experience is a plus) Familiarity with Git version control Knowledge of dependency injection, services, and Symfony best practices Experience writing clean, maintainable, and well-documented code Unit and functional testing (PHPUnit) Nice to Have: Domain-Driven Design (DDD) and hexagonal architecture Front-end skills (Twig, JavaScript, React, or Vue) Docker and CI/CD experience Message queue systems (RabbitMQ, Symfony Messenger) Responsibilities: Develop and maintain backend features Design and optimize database queries Build and integrate APIs Write tests and ensure code quality Collaborate with the team and meet project deadlines Please share your portfolio, relevant Symfony projects, and estimated availability. Provide your hourly rate or fixed-...
I need a RabbitMQ support engineer for setup and configuration in a hybrid environment. Key Tasks: - Configure RabbitMQ on both on-premise and cloud platforms - Ensure secure and efficient communication between hybrid nodes - Provide documentation for the setup Ideal Skills: - Experience with RabbitMQ in hybrid environments - Proficiency in at least one cloud provider (AWS, Azure, or Google Cloud) - Strong networking and security knowledge Please share your relevant experience and approach.
...experienced Golang backend developer to build a high-performance SMS processing engine that integrates with our existing platform using RabbitMQ. Current Architecture Laravel (Production) MySQL Redis REST API The new Golang services will run on dedicated Linux servers and communicate with the existing Laravel application. Scope of Work 1. SMS Worker RabbitMQ Consumer Process SMS jobs Multi-worker support Operator-wise routing MNP SMS API integration Retry mechanism Manual ACK Automatic reconnect Logging 2. DLR Worker Poll MNP DLR API Concurrent DLR processing Retry scheduling Send batch DLR updates back to the existing Laravel API 3. Queue Integration Integrate RabbitMQ with the existing Laravel platform Process SMS jobs efficiently High concurrency support Impor...
ST...Frontend (React): Dashboards, state management (Redux / Zustand / React Query), complex async UI flows - Automation: Deep experience with browser automation, scraping, and portal integrations (Playwright / Selenium) - OCR & Passports: Proven experience with OCR (Tesseract, AWS Textract, Google Vision, etc.) on documents and passports - DevOps & Architecture: Docker, Git, message queues (Celery / RabbitMQ / Kafka), microservices, and end-to-end production deployment Who you are: You don't just write code — you understand servers, debugging, monitoring, and architecture. You solve problems with minimal supervision and deliver production-ready work. How we'll start: We'll begin with a small, paid task so we can see how we work together, with strong p...
...Selenium * Cucumber * JUnit / TestNG * API Automation Frameworks ### Performance Testing * JMeter * Load Testing * Stress Testing * Performance Analysis ### Databases & Messaging * PostgreSQL * Redis * RabbitMQ * Kafka ### Tools & Processes * GitHub * Docker * Agile / Scrum * Defect Tracking Tools (Jira or equivalent) ## Responsibilities * Create and maintain test plans, test cases, and test reports * Validate REST APIs and microservices functionality * Develop and execute automated test suites * Perform regression and integration testing for each release * Validate Kafka and RabbitMQ message flows * Execute performance and load testing using JMeter * Identify, document, and track defects * Work closely with developers, architects, and product stakeholders ...
...design and implement a robust, scalable, and production-ready application. Preferred Technology Stack Frontend * React / * TypeScript * Material UI or equivalent enterprise UI framework Backend * Java Spring Boot * REST APIs * Microservices Architecture #### AI & Intelligent Services * Python * FastAPI * AI/LLM Integration Experience Database & Infrastructure * PostgreSQL * Redis * RabbitMQ * Elasticsearch * MinIO or equivalent object storage Security & Identity * OAuth2 * SSO * MFA * RBAC * Keycloak or equivalent IAM solution DevOps * Docker * Kubernetes * CI/CD Pipelines * Monitoring & Observability Security Requirements The application must be designed with enterprise-grade security standards including: * Secure authentication and authorization...
...Liquibase ### Messaging & Event Streaming * RabbitMQ * Apache Kafka ### Architecture & DevOps * Microservices Architecture * Docker * GitHub / Git * CI/CD Pipelines ### Testing & Quality * JUnit * Cucumber * JMeter * Integration Testing * Performance Testing ### Additional Requirements * Strong understanding of JSON processing (JsonNode and related libraries) * Experience designing scalable and resilient distributed systems * Knowledge of API security, authentication, and authorization * Experience troubleshooting production issues ## Responsibilities * Design and develop Spring Boot microservices * Implement REST APIs and event-driven integrations * Optimize PostgreSQL and Redis usage * Develop and maintain messaging integrations using RabbitMQ and K...
Java FullStack Developer! Employment Type: Freelancing Freelancer Location: India Experience: 3+ About the Role: We are looking for a skilled and passionate Java FullSta...Redux / Context API (good to have) Database: MySQL / PostgreSQL / Oracle Knowledge of NoSQL databases (MongoDB is a plus) Tools & Technologies: Git / GitHub / GitLab Maven / Gradle Jenkins / CI/CD (basic knowledge) Docker (good to have) Agile/Scrum experience Good to Have Experience with AWS / Azure / GCP Experience with Docker & Kubernetes Knowledge of caching (Redis) and messaging tools (Kafka/RabbitMQ) Unit testing: JUnit, Mockito Opportunity to work on cutting-edge integration projects with a skilled tech team. Collaborative and innovation-driven culture. Growth-oriented environment with exciting car...
...Reporting system 5. Deployment packaging --- # 3. SYSTEM ARCHITECTURE ## 3.1 High-Level Architecture Frontend Layer: * React.js * TypeScript * Material UI / Ant Design Backend Layer: * FastAPI (Python) * REST APIs * WebSocket support Monitoring Stack: * Prometheus * Grafana * Telegraf * Alertmanager Logging Stack: * ELK Stack * Elasticsearch * Logstash * Kibana Messaging Layer: * RabbitMQ Database: * PostgreSQL Authentication: * Keycloak OR JWT-based Auth Containerization: * Docker * Docker Compose Deployment: * Ubuntu Server * Linux environment mandatory --- # 4. CORE MODULES # MODULE 1: AUTHENTICATION & USER MANAGEMENT ## Features * Login/Logout * JWT Authentication * Role-based access control * Session handling * Password encryption * Audit...
...Python services that drive these rules, expose them through clean APIs, and make sure they scale on both CPU- and GPU-backed nodes. Must-have expertise • Rule engines we actively use: PyKnow, Experta, and Drools • VM layers you’ll manage: KVM, Proxmox, VMware • Orchestration stack: Docker, Podman, Kubernetes Beyond those essentials, the work touches GPU workloads, message queues (Redis, RabbitMQ, Kafka), Postgres/MySQL/MongoDB, and automation pipelines, so practical experience in at least several of these areas will help you hit the ground running. What I expect from you 1. Build the Python rule services, wired into the message queue layer. 2. Create REST/JSON APIs so external apps can trigger, modify, and monitor rules. 3. Provide Terraform/...
...Event-Driven Autoscaling with KEDA Dynamic, Metric-Driven Scaling: Integrated KEDA (Kubernetes Event-driven Autoscaling) to scale microservices from zero to thousands of pods based on real-time event metrics rather than traditional CPU/Memory thresholds. Multi-Scalar Integration: Authored production-grade scaling policies utilizing diverse KEDA scalers, tracking external metrics from Apache Kafka lag, RabbitMQ queues, Prometheus queries, and GCP Pub/Sub message counts. Scale-To-Zero Cost Optimization: Engineered scale-to-zero configurations for asynchronous workers and AI ingestion agents, completely eliminating compute costs during idle periods. HPA Coexistence: Masterfully managed the interplay between native Horizontal Pod Autoscalers (HPA) and KEDA, mitigating resource con...
I’m provisioning RabbitMQ clusters on OpenShift, but every attempt ends with a release-name naming conflict that drives the pods into a CrashLoopBackOff. The manifests are all YAML and the surrounding automation is written in Node.js, so I need someone who can move comfortably between those two worlds while troubleshooting OCP internals. What I need you to do • Pinpoint the exact source of the release-name conflict and eliminate it. • Update the Helm chart / raw YAML (whichever proves to be the culprit) so the cluster spins up cleanly in each target region. • Verify that all pods remain healthy after deployment and that the management UI shows a fully formed RabbitMQ cluster. • Hand back the corrected deployment files plus a concise summary ...
...cloud-native backend architecture including: • REST and/or GraphQL APIs • Real-time socket infrastructure • Ride matching engine • Geolocation services • Route optimization • Notification systems • Admin authentication layers • Payment reconciliation systems • Audit logging • Data encryption and GDPR-aligned compliance Preferred stack examples: • Node.js / Go / Python • PostgreSQL + Redis • Kafka/RabbitMQ (optional) • Firebase/AWS/GCP integrations • Kubernetes/containerized deployment ________________________________________ Core Functional Requirements Real-Time Tracking • Continuous live GPS updates • Accuracy target: ±10 meters • Driver/passenger live visibility • Route devia...
...experience with API design (REST, gRPC, OpenAPI) * Experience with debugging production issues and performance tuning * Experience working with both Windows (IIS, Services) and Linux (Docker, Kubernetes) * Strong understanding of system design, scalability, and reliability * Experience in modernization projects and legacy system handling --- ### **Good to Have** * Event-driven architecture (Kafka, RabbitMQ, Azure Service Bus) * Cloud experience (Azure / AWS) * Infrastructure as Code (Terraform, ARM, Bicep) * Experience operating large-scale production systems --- ### **Ideal Candidate** * Strong problem-solving and ownership mindset * Comfortable working with legacy systems and modernizing them * Able to handle ambiguous requirements and deliver solutions independently * Go...
...queues - Ensure system scalability, performance, and reliability - Handle error handling, logging, and monitoring - Collaborate with cross-functional teams for feature delivery --- Required Skills - Strong experience in Python backend development - Hands-on with FastAPI / Django / Flask - Experience building REST APIs and microservices - Good understanding of asynchronous programming (Celery, RabbitMQ, Kafka, etc.) - Strong SQL skills and experience with databases (PostgreSQL, MySQL, MongoDB) - Knowledge of system design, scalability, and performance optimization - Experience with cloud platforms (AWS / GCP / Azure) - Familiarity with Docker and CI/CD pipelines --- Good to Have - Experience with LLM/AI integrations (OpenAI, LangChain, etc.) - Experience with large-scale dat...
...hands-on experience with Linux servers, deployments, AWS, GCP and Microsoft Azure - Are comfortable with Docker and CI/CD pipelines - Have worked with monitoring and observability tools (Prometheus + Grafana + Loki + Tempo) - Enjoy automating things and making infrastructure more reliable - Are always looking to expand your DevOps skill set - Bonus: Experience with PHP, Laravel, MySQL, Microservices, RabbitMQ, Kong, Keycloak, Kubernetes We genuinely invest in the people we work with. You will have a clear scope of work, consistent feedback, and real opportunities to grow your skills on interesting and varied projects. This is a ongoing freelance position, meaning ongoing and stable work, and a real long-term relationship, not just another short project. Engagement details - T...
...device communication Cloud-native backend services Market communication and integrations Analytics and operational dashboards Workflow automation Audit logging and operational monitoring Tech Stack: React Node.js + Express MongoDB Docker Redis Kafka / RabbitMQ MQTT REST APIs We are looking for a developer who can work confidently across both frontend and backend. Required Skills: Strong React frontend development Solid Node.js and Express backend experience Experience building scalable APIs and event-driven systems Familiarity with Kafka, RabbitMQ, MQTT, or similar messaging systems Experience with Dockerized environments Understanding of multi-tenant architectures Experience integrating third-party APIs and external systems Ability to design maintainable and production-...
...Web API (latest LTS) using Clean Architecture, CQRS, and Dependency Injection. • Real-Time Layer: SignalR for bi-directional communication between drivers and passengers to enable live tracking and instant updates. • Database: SQL Server with Entity Framework Core (code-first) and optimized indexing. • Caching: Redis for fast access to live driver locations and high-frequency data. • Messaging: RabbitMQ for handling asynchronous workflows such as notifications, trip processing, and background jobs. • ML Service: Python-based microservice (FastAPI) for ETA prediction and future intelligent features. • Deployment: Fully Dockerized and cloud-ready (Azure/AWS). Live Tracking System Tripix implements a real-time tracking engine where drivers continuously...
Looking for senior .NET backend developer to join ongoing development of backend system. You will be responsible for building out core backend functionalities, and ensuring the system is functional, secure, scalable, and maintainable. • Comprehensive expertise in .NET. • ABP framework experience • DB query optimization. • Experience with message brokers (e.g., Kafka/RabbitMQ) • Experience with idempotency patterns • OAuth 2.0 implementation • API rate limiting and throttling • mTLS based authentication/authorization (extra. not required) • Security audit logging and monitoring • Experience with Docker • Experience and understanding of caching (e.g., Redis) • Creating technical documentation and architecture diagrams •...
...throttling versioning monitoring Authentication should follow OAuth2 / JWT best practices. Integration Middleware • Introduce an ESB or lightweight integration layer responsible for: data transformation orchestration validation routing between services The backend services currently run on Laravel / PHP. Event Infrastructure • Implement an event-driven backbone using tools such as: Kafka RabbitMQ This layer will publish real-time portfolio events, including: new loan onboarding loan status changes repayment activity collection updates Security & Observability Implement strong operational and security practices including: • role-based access control (RBAC) • API audit logging • request tracing • production monitoring • SOC-friendl...
...delivery and failure handling Maintain logs, retries, and queue systems *Requirements Strong experience in WhatsApp Business API (Meta Cloud API / BSP systems) Experience building tools similar to AiSensy / WATI / Interakt / Gupshup dashboards Backend expertise in: Node.js / (preferred) PostgreSQL / scalable DB design Strong knowledge of: Webhooks & event-driven systems Messaging queues (RabbitMQ / Kafka - bonus) Experience with: Multi-tenant SaaS architecture High-scale messaging systems * Bonus Skills Experience building flow builders (like n8n / Zapier style) Prior work on BSP-level WhatsApp platforms AI chatbot / conversational UX experience * What We Expect Ownership mindset (build, not just integrate) Ability to think product + scale Startup-ready execution speed *...
...system (token-based) - Audio streaming (audiobook) - Secure PDF delivery (premium only) - Album streaming (premium only) - Raffle system with user codes Requirements: - Strong experience with Node.js (Express or NestJS) - Experience with Stripe webhooks () - Experience building scalable systems (10k+ concurrent users) - Knowledge of queues / async processing (SQS, Redis, RabbitMQ) - PostgreSQL database design - AWS experience (S3, EC2 or Lambda) - Ability to build secure access control (token / signed URLs) Nice to have: - Experience with PWA () - Experience with media streaming - Experience with high-load systems Important: This system must be built for high traffic. No synchronous webhook processing. Must use async architecture. Timeline: MVP required in 3–5
...microservices platform (Phizica) that is 99% ready, but the final production deployment is failing. It runs perfectly in a local Docker cluster, but it is currently a "dark site" to the public internet because of networking/gateway blockages. The Technical Situation: Architecture: 10+ decoupled microservices (Node.js, Express, TypeScript, Prisma). Infrastructure: Docker Compose, PostgreSQL (PgBouncer), RabbitMQ (Outbox Pattern), and Nginx. The Problem: The machine is correctly assigned a Static Public IP (), and our Nginx gateway is listening. However, we are getting Connection Timeouts from the public internet. It works on the internal office network but fails globally. Root Cause Suspected: Likely a Cloud Catalyst / Firewall NAT conflict at the ISP level (Vortex Inf...
...and database connection pooling for maximum throughput with minimal resource consumption. • Monitor server health and application performance using tools such as New Relic, Datadog, or Grafana; proactively identify and resolve bottlenecks before they impact users. • Reduce server footprint through efficient memory management, lazy loading, pagination, background job processing (queues via Redis/RabbitMQ), and asynchronous task handling. Quality Assurance & DevOps • Write unit tests and integration tests (PHPUnit, Codeception) to maintain high code coverage and catch regressions early. • Set up and maintain automated deployment pipelines, containerised environments (Docker), and staging/production server configurations. • Perform load testing and stres...
...services, **RabbitMQ** for message queuing, and **Microsoft SQL Server (MSSQL)** as the primary database. This system will allow us to operate as an SMS aggregator/reseller, connect with multiple upstream SMS providers via SMPP, and provide API access to downstream clients. ## Core Objectives * Develop a scalable SMS gateway platform * Integrate SMPP client connections with upstream providers * Provide REST API for customers to send SMS * Implement asynchronous message processing using RabbitMQ * Real-time DLR (Delivery Report) handling * Billing, routing, and reporting system * High throughput and fault-tolerant architecture ## Technical Stack (Mandatory) * **Backend:** .NET 8 / .NET Core (RESTful API) * **Database:** Microsoft SQL Server (MSSQL) * **Queue System:**...
...(Over-the-Air) update (khususnya Android/Linux/Windows) 4. Dashboard & API Web dashboard untuk monitoring & control REST API / gRPC backend Role-based access control (RBAC) 5. Security & Compliance Encrypted communication (HTTPS / TLS) Device certificate management Token rotation & revoke mechanism 6. Scalability & Reliability Support hingga ribuan device (high concurrency) Queue system (Kafka / RabbitMQ / Redis) Fault-tolerant architecture Tech Stack (Flexible) Kami terbuka dengan stack, tapi prefer: Backend: Golang / Node.js Frontend: React / Mobile/Agent: Native / cross-platform sesuai OS Infra: Docker, Kubernetes (optional) Cloud: AWS / GCP / lokal server Kriteria Freelancer Berpengalaman di distributed system / scalable backend Pern...
...(Over-the-Air) update (khususnya Android/Linux/Windows) 4. Dashboard & API Web dashboard untuk monitoring & control REST API / gRPC backend Role-based access control (RBAC) 5. Security & Compliance Encrypted communication (HTTPS / TLS) Device certificate management Token rotation & revoke mechanism 6. Scalability & Reliability Support hingga ribuan device (high concurrency) Queue system (Kafka / RabbitMQ / Redis) Fault-tolerant architecture Tech Stack (Flexible) Kami terbuka dengan stack, tapi prefer: Backend: Golang / Node.js Frontend: React / Mobile/Agent: Native / cross-platform sesuai OS Infra: Docker, Kubernetes (optional) Cloud: AWS / GCP / lokal server Kriteria Freelancer Berpengalaman di distributed system / scalable backend Pern...
...concurrent WebSocket/API pulses from BLE beacons without latency. Multi-Tenant Hierarchy: Implement a robust, schema-based multi-tenant architecture to support a global hierarchy (Global Admin $rightarrow$ Country $rightarrow$ State $rightarrow$ Branch/Franchise). Data & Performance: Optimize PostgreSQL indexing, implement Redis caching, and transition heavy tasks to a distributed queue (Celery/RabbitMQ). Flutter Integration: Collaborate with our mobile team to ensure the real-time data streaming between Flutter and the backend is bulletproof. Phase 2: System Maintenance & Evolution 1-Year Commitment: Provide ongoing system maintenance, bug fixes, and security patches to ensure 99.9% uptime. Performance Monitoring: Continuously monitor server health as we cross the 10k...
...security groups, networking) Implement CI/CD pipelines for automated deployments Configure environment variables and secrets management Set up logging, monitoring, and backup strategies Optimize infrastructure for cost and scalability Assist with deployment troubleshooting and documentation Tech Stack Frontend: TypeScript Tailwind CSS NextAuth Backend: Node.js MongoDB Kafka / RabbitMQ (optional) REST APIs Infrastructure: AWS (EC2, S3, IAM) CI/CD (GitHub Actions or similar) Docker (preferred but optional) Requirements Strong experience with AWS cloud infrastructure Experience deploying Node.js / applications Experience with CI/CD pipelines Familiarity with security best practices Ability to document infrastructure setup clearly Prior DevOps experience ...
...engineers; while they refine models, you will expose their work through well-structured endpoints and schedule long-running jobs with Celery. A deep understanding of asynchronous programming, background job queues, and the nuances of production-grade REST APIs is therefore essential. Key tech you should already be fluent with includes: • Python 3.x, FastAPI, Pydantic • Celery with Redis or RabbitMQ back-ends • OAuth2 / JWT for securing endpoints • Docker and Git for reproducible builds and clean collaboration Deliverables I expect: • A versioned RESTful API that handles external service integration end-to-end • Celery task queues for model execution and heavy I/O workloads • Unit & integration test coverage ≥90 % plus API do...
...maintainable Java code on the back-end while also tying in the front-end layers so the entire flow feels seamless to the user. Key elements you’ll handle • Setting up and extending a Spring Boot framework that connects to a relational database; I already have tables sketched out, so efficient JPA/Hibernate mapping will be important. • Wiring the service layer to a message-queue solution (RabbitMQ or Kafka—open to whichever you prefer) so events are published and consumed reliably. • Implementing the usual full-stack glue—controllers, DTOs, and any lightweight front-end touches—so features can be demonstrated in a browser without extra hand-holding. • Writing concise documentation and a one-shot script or Dockerfile that lets me...
