Required Skills:
- Experience-4+ years
- Strong backend engineering fundamentals.
- Hands-on experience with at least one backend language such as Golang, Node.js, Java, Rust, Python, or similar.
- Strong understanding of REST APIs, service design, authentication, authorization, and API security.
- Positive knowledge of database design, indexing, query optimisation, transactions, and data consistency.
- Experience with SQL databases such as PostgreSQL, MySQL, or similar.
- Understanding of NoSQL databases, caching systems, and when to use them.
- Experience working with Redis or similar caching technologies.
- Understanding of message queues, event-driven architecture, asynchronous processing, and background jobs.
- Ability to reason about memory management, garbage collection, concurrency, and runtime behaviour.
- Experience debugging performance issues in backend systems.
- Good understanding of high TPS systems, load testing, horizontal scaling, and bottleneck analysis.
- Familiarity with containerisation using Docker.
- Working understanding of Kubernetes-based deployments,



preferably EKS.
- Understanding of CI/CD pipelines and cloud deployment practices.
- Good communication skills and ability to explain technical decisions clearly.

Good to Have Skills
- Experience with microservices architecture.
- Experience with AWS services, especially EKS, RDS, SQS, CloudWatch, ElastiCache, API Gateway, or Lambda.
- Understanding observability tools such as Prometheus, Grafana, Loki, Tempo, Open Telemetry, or similar.
- Experience with distributed tracing and production monitoring.
- Experience with event streaming platforms such as Kafka.
- Knowledge of security best practices around JWT, OAuth2, RBAC, secrets management, and secure API design.
- Experience designing systems for high availability and fault tolerance.
- Exposure to infrastructure-as-code tools such as Terraform or CloudFormation.
- Experience mentoring junior engineers or reviewing technical designs.

Pay: ₹5

📌 Senior Backend Developer (Sahibzada Ajit Singh Nagar)
🏢 Wits Innovation Lab
📍 Sahibzada Ajit Singh Nagar