Senior Java Developer

What Youll Do

• Design, develop, and maintain enterprise-grade Java / Spring Boot applications, ensuring high throughput, scalability, and reliability.
• Lead design and system decomposition, making strategic decisions around microservices, event-driven flows, and domain boundaries.
• Optimize and manage relational databases, primarily PostgreSQL, including schema design, indexing, query tuning, and data integrity practices.
• Develop, deploy, and operate cloud-native solutions using AWS (e.g. EC2, RDS, S3, Lambda) and drive infrastructure-as-code practices.
• Define and enforce API contracts (RESTful / reactive APIs), versioning, and backward compatibility.
• Drive CI/CD pipelines, automated testing, build & release strategies, and environment promotion workflows.
• Collaborate closely with product, UX/design, QA, DevOps, and security teams to translate business requirements into robust technical solutions.
• Review work from mid-level and junior engineers; lead low level design reviews collaborating with the Architecture team and promote clean code and best practices.
• Ensure adherence to security, compliance, and performance standards, especially within financial domain constraints.
• Continuously evaluate emerging technologies (e.g., reactive frameworks, serverless patterns, container orchestration) and advocate for incremental improvements.

What We’re Looking For

• 10+ years of professional experience in Java-based backend development

  , including production-level coding, debugging, and support.

• Strong mastery of Spring, Spring Boot, and reactive programming (e.g.

  RxJava )

  as design patterns in modern Java systems.
• Proven experience designing and operating microservices architectures, service-to-service communications, messaging, and event-driven designs.
• Deep knowledge of PostgreSQL (or similar relational DBs), SQL, data modeling, performance tuning, and ORM frameworks (e.g. Hibernate/JPA).
• Hands-on experience with AWS services: EC2, RDS, S3, Lambda, as well as familiarity with infrastructure-as-code (e.g., Terraform, CloudFormation).
• Strong foundation in REST API design, versioning, security (OAuth, JWT, TLS), and API gateway strategies.
• Experience with establishing and scaling CI/CD pipelines (e.g. Jenkins, GitLab CI, CircleCI, or similar).
• Exposure to containerization (Docker) and orchestration (Kubernetes) is highly desirable.
• Experience in a regulated or financial domain (banking, payments, trading) is a significant plus.
• Excellent problem-solving, system-thinking, and architectural judgment.
• Strong communication skills, able to influence across teams and explain technical decisions to both technical and non-technical stakeholders.

Nice-to-Have / Differentiators

• Experience building

  reactive, event-driven systems

  or using message brokers.
• Familiarity with frontend technologies such as React, Tailwind, Bootstrap or other JS frameworks (to understand end-to-end flows).
• Prior exposure to observability tooling (e.g. Prometheus, Grafana, ELK, Splunk).
• Experience with containerization (Docker, Kubernetes)
• Security certifications or deep experience with secure coding practices in financial systems (e.g. encryption, key management, audit logging).