Senior Backend Developer (Node.js & Golang)

Описание

We’re looking for a Senior Backend Developer with 5+ years of professional experience, including 3+ years of hands-on Node.js expertise and strong knowledge of Golang, to help build and scale high-performance backend systems. You’ll work on complex technical challenges while collaborating closely with cross-functional teams.

✅ Responsibilities

Backend Development & Architecture:

• Design, develop, and maintain scalable backend services and APIs using Node.js and Golang, with a focus on performance, security, and reliability.

• Architect REST/GraphQL APIs with best practices for rate limiting, idempotency, and versioning.

• Implement event-driven architectures using message brokers (RabbitMQ, Kafka) and real-time systems (WebSockets/Socket.io).

• Optimize MySQL/PostgreSQL databases through query tuning, indexing, and sharding strategies.

• Build and maintain caching layers with Redis (e.g., cache invalidation, clustering, Lua scripting).

System Integration & Collaboration:

• Integrate third-party APIs (payment gateways, authentication services) with fault tolerance and retry logic.

• Collaborate with frontend and DevOps teams to design cloud-native solutions (AWS/GCP/Azure) and containerized deployments (Docker/Kubernetes).

• Write clean, maintainable code following SOLID principles and participate in rigorous code reviews.

Performance & Troubleshooting:

• Identify and resolve bottlenecks in distributed systems, including database latency, message queue tuning, and API performance.

• Implement monitoring and logging (Prometheus, Grafana, ELK Stack) for production systems.

• Conduct root cause analysis (RCA) for critical issues and implement preventive measures.

Process & Best Practices:

• Advocate for test-driven development (TDD) and write automated tests (Jest, Mocha, Cypress).

• Contribute to CI/CD pipelines (GitHub Actions, Jenkins) and infrastructure-as-code (Terraform).

• Document technical designs, API specs (Swagger/OpenAPI), and system architecture.

✅ Technical Requirements

Core Skills:

• 5+ years in backend development, with 3+ years of commercial Node.js experience.

• Solid experience with Golang, especially in building scalable APIs and microservices.

• Expertise in Node.js frameworks: Express.js, NestJS, Fastify.

• Advanced proficiency in JavaScript/TypeScript (ES6+, async/await, streams).

• Deep understanding of REST/WebSocket APIs and microservices architecture.

Databases & Tools:

• MySQL/PostgreSQL: Complex query optimization, replication, ORMs (Sequelize/TypeORM).

• Redis: Cache strategies, pub/sub, and persistence configurations.

• RabbitMQ/Kafka: Message queuing, event streaming, and dead-letter handling.

DevOps & Cloud:

• Experience with AWS/GCP/Azure (Lambda, EC2, S3, Cloud Functions).

• Proficiency in Docker and basic knowledge of Kubernetes.

• Familiarity with infrastructure-as-code (Terraform, CloudFormation).

Bonus Skills:

• Experience with serverless architectures (AWS Lambda, Serverless Framework).

• Familiarity with GraphQL (Apollo Server, schema design).

• Understanding of security practices (JWT, OAuth2, encryption).

Soft Skills:

• Advanced English for clear technical documentation and team collaboration.

• Strong problem-solving skills and attention to detail.