Java Technical Lead

Role & responsibilities

1. Architecture & Design

• Define and evolve

  scalable, resilient, and secure microservice architectures

• Apply

  Spring Cloud patterns

  (service discovery, config server, circuit breakers, API gateway)
• Design systems for

  zero-downtime deployments, fault tolerance, and horizontal scaling

• Ensure architecture supports

  future growth, observability, and cost-efficiency

2. Java & Spring Boot Microservices

• Build and review

  RESTful APIs and GraphQL services

  with Spring Boot
• Deep knowledge of

  Spring Security, OAuth2.0, JWT, mTLS

• Strong expertise in

  Hibernate/JPA

  , database optimization, and distributed data handling
• Hands-on with

  asynchronous messaging

  using

  Kafka, RabbitMQ, JMS, Pub/Sub, or MQ (IBM MQ/ActiveMQ)

• Apply

  domain-driven design (DDD), CQRS, event sourcing

  for microservice boundaries

3. Performance Management

• Tune JVM (GC, heap, thread pools) for

  high-throughput, low-latency applications

• Lead

  performance testing

  (JMeter, Gatling) and resolve bottlenecks across services
• Optimize

  connection pools, thread management, DB queries, and messaging throughput

• Define

  SLOs/SLIs

  and implement dashboards for latency, throughput, and error monitoring

4. Kubernetes & Cloud (GCP)

• Manage and optimize

  Kubernetes workloads (GKE)

  autoscaling, affinity, pod tuning
• Optimize

  cloud spend

  through rightsizing, caching, storage optimization, and scaling strategies
• Implement

  CI/CD pipelines

  (Jenkins, GitHub Actions, ArgoCD) with secure deployments
• Integrate with

  monitoring & observability

  (Prometheus, Grafana, OpenTelemetry)

5. Redis & Caching

• Architect and fine-tune

  Redis clusters

  for caching and session management
• Define

  cache strategies

  (write-through, lazy-load, eviction policies)
• Monitor Redis performance and optimize

  memory usage & failover configurations

6. Security

• Implement secure-by-design principles:

  OAuth2.0, OpenID Connect, mTLS

• Enforce

  OWASP Top 10 protections, secrets management, token validation

• Drive compliance with

  data privacy & security standards

  (ISO, GDPR if applicable)
• Conduct

  architecture reviews, code reviews, and technical governance

• Collaborate with

  cross-functional teams

  (Frontend, DevOps, QA, Security, Product)

Preferred candidate profile

• Bachelors in Computer Science, Engineering, or related field.
• Certifications preferred:

  GCP Cloud Architect, Kubernetes Administrator (CKA), Redis, Spring/Spring Boot