Java Backend Developer (Senior) – API/Microservices

Winzons; India; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

Luxoft in Bangalore, India is seeking an experienced Java Backend Developer to design, build, and maintain high-performance APIs and microservices for the Banking/Financial Services sector. The role requires 8+ years of expertise in Core Java, Spring Boot, REST, and cloud deployment with CI/CD, Docker, and Kubernetes.

Familiarity with Kafka and OpenAPI is a plus. You will collaborate with cross-functional teams and contribute to secure, scalable backend systems while following agile practices

Qualifications

• 8+ years of experience as a Java backend developer.
• Bachelor’s Degree in Computer Science, Engineering, or equivalent.

Responsibilities

• Design, develop, and maintain high-performance, scalable, and secure Java-based APIs and microservices.
• Translate business requirements into technical specifications and architectural designs.
• Ensure best practices in software development, including clean code, unit testing, CI/CD pipelines, and code reviews.
• Collaborate with DevOps, QA, frontend, and product teams to ensure seamless integration and deployment.
• Monitor application performance and troubleshoot production issues when needed.
• Stay updated with emerging technologies and propose improvements to enhance system performance and reliability.
• Drive agile development practices, participate in sprint planning, stand-ups, and retrospectives.

Skills

Senior Java development

Spring Boot

REST API design

Microservices

Kafka

Cloud: AWS/Azure/GCP

Docker

Kubernetes

CI/CD

JUnit/Mockito

SQL/Relational DBs

OAuth2/JWT

Education

Bachelor’s Degree in Computer Science, Engineering, or equivalent

Tools

OpenAPI/Swagger

Postman

Git

Job description

Company Name: Luxoft

Job Role: Java Backend Developer

Experience Required: 8 to 15 Years

Location: Bangalore, India

Interview Date (if shortlisted): 20th June 2026 (Saturday), Bangalore

Industry: Banking / Financial Services / IT Services

Qualification: Bachelor’s Degree in Computer Science, Engineering, or equivalent

Project description :

We are looking for an experienced API Microservices Developer to work in the API Management team. You are expected to provide technical skills in software engineering, testing, and deployment. You will be required to have work experience with Java and API development. Experience with the Avaloq Banking Suite is added bonus. The main focus will be on supporting our Change Portfolio with the design and development of backend services.

Responsibilities :

• Design, develop, and maintain high-performance, scalable, and secure Java-based APIs and microservices.
• Translate business requirements into technical specifications and architectural designs.
• Ensure best practices in software development, including clean code, unit testing, CI/CD pipelines, and code reviews.
• Collaborate with DevOps, QA, frontend, and product teams to ensure seamless integration and deployment.
• Monitor application performance and troubleshoot production issues when needed.
• Stay updated with emerging technologies and propose improvements to enhance system performance and reliability.
• Drive agile development practices, participate in sprint planning, stand-ups, and retrospectives.

Skills :

Must have :

• 8+ years of experience as a Senior Java developer.
• Degree in computer science/engineering or equivalent.
• Java & Spring Boot : Strong Core Java fundamentals (Java 17-21 preferred), microservices, REST API design and error handling
• Web technologies (e.g., Java, REST, Hibernate, TDD, Swagger/OpenAPI), web security (e.g., OAuth 2.0).
• Event Streaming : Hands-on experience with Kafka and event-driven applications.
• Cloud & Deployment : AWS/Azure/GCP, Docker, Kubernetes, CI/CD pipelines.
• Testing : JUnit, Mockito.
• Security : OAuth2, JWT, API gateway familiarity.
• Databases : Relational databases (e.g., PostgreSQL, MySQL).
• Version Control : Git, collaborative workflows.
• Experience on BFSI/Banking projects

Nice to have :

• Modern Java Features : Records, sealed classes, awareness of Project Loom.
• API Governance : OpenAPI/Swagger, consumer-driven contracts, Tyk.
• Data Layer : JPA/Hibernate, PostgreSQL, Liquibase/Flyway migrations.
• Observability : Metrics/logs/traces with OpenTelemetry, Jaeger, Grafana.
• Quality : Integration tests, coverage gates.
• DevOps Extras : ArgoCD, GitLab CI, GitOps practices.
• Domain Knowledge : Banking/financial services experience, especially in wealth, investments, or portfolio management.
• Soft Skills : Clear communication, stakeholder engagement, ownership mindset.