Senior Tech Lead (Java)

As a Tech Lead, you will guide a squad of engineers in delivering Java microservices on AWS, balancing hands-on technical contribution with team leadership responsibilities. You will own the quality and integrity of your squad's deliverables, drive implementation against architecture guidance, and ensure engineering standards are met on every release. You will work closely with the Technical Architect and Delivery Manager to plan, estimate, and ship working software on a predictable cadence.

Responsibilities:

• Design and implement Java microservices following DDD principles: aggregate roots, bounded contexts, and domain events published to the enterprise event bus.
• Implement CQRS read/write separation: Hibernate ORM write path, GraphQL composition, and ORM-based REST GET DTOs for reads.
• Implement and maintain database schemas with Flyway migrations on Aurora PostgreSQL; ensure schema changes include corresponding history-table updates.
• Integrate AWS security patterns: RDS IAM database authentication, Secrets Manager, KMS at-rest encryption, and TLS in-transit configuration.
• Implement authentication flows using Azure B2C and/or AWS Cognito (OIDC / JWT) for multiple user personas.
• Collaborate with cross-functional teams to define, design, and ship new features; translate architecture decisions into actionable engineering tasks.
• Own CI/CD pipeline health: GitHub Actions reusable workflows, semantic versioning, ECR push, EKS deployment, automated test gates.
• Identify and address performance bottlenecks, scalability issues, and bugs; lead root cause analysis on production incidents.
• Write clean, well-documented, maintainable code and ensure the squad does the same.
• Participate in sprint ceremonies under Agile SDLC; contribute to backlog refinement and estimation.
• Stay current with industry trends, including AI tooling, to keep the squad's approach modern and competitive.

Requirements:

• Technology stack: Java (Amazon Corretto), Micronaut, Gradle, Hibernate, MyBatis, Aurora PostgreSQL, Flyway, AWS EKS, Argo CD, Terraform, GitHub Actions, Kong API Gateway, AWS IAM / Secrets Manager, OpenTelemetry, Azure B2C, AWS Cognito.
• 10+ years of professional experience in Java development, with at least 3 years in a tech lead or senior lead role.
• Strong understanding of microservices architecture, DDD, and cloud-native design principles.
• Excellent knowledge of Java (21+), Micronaut or Spring Boot, Hibernate / JPA, MyBatis, Gradle, and Git.
• Hands-on experience with Aurora PostgreSQL or equivalent RDBMS: schema design, Flyway migrations, connection pooling (HikariCP).
• Experience with AWS platform services: EKS, RDS, IAM, Secrets Manager, ECR, and CloudWatch.
• Familiarity with identity platforms: Azure B2C and/or AWS Cognito OIDC/JWT flows and JWT validation in a Micronaut or Spring Security context.
• Experience with Docker containerization and Kubernetes / Helm deployments.
• CI/CD experience with GitHub Actions or equivalent; understanding of GitOps practices (Argo CD).
• Experience with OpenAPI/Swagger for contract-driven API development.
• Understanding of pub/sub and event-driven messaging (Kafka, AWS SNS/SQS, Azure Service Bus, or equivalent).
• Strong understanding of relational database design and query optimization.
• Experience with code quality tooling: linters, formatters, and coverage gates in CI.
• Understanding of Agile SDLC and comfortable leading planning, refinement, and retrospective ceremonies.
• Team player with initiative and a results-oriented attitude; good sense for quality.
• Strong English communication skills; ability to bridge technical and product conversations.
• Excellent problem-solving skills and a proactive attitude.

Nice to have:

• Experience in the finance or investment management industry.
• AWS certifications such as Developer or Solutions Architect.
• Hands-on experience with Terraform for AWS EKS, RDS, and IAM infrastructure.
• Experience with Azure Service Bus and hybrid Azure-to-AWS event bridge patterns.
• Experience with GraphQL schema design and DataLoader batching for N+1 prevention.
• Experience with Kong API Gateway, including route configuration and OIDC plugin integration.
• Experience with the Micronaut GraphQL module.
• Experience with Aurora PostgreSQL temporal and history table patterns.