Senior Microservices Technical Lead - Part-Time

Role Summary

Experienced Senior Software Engineer / Technical Lead with 8.5+ years of expertise in Java, Microservices, and Cloud-based application development across Banking, Payments, Telecom Billing, and Application Security domains. Proven ability to design scalable systems, lead development teams, migrate legacy systems to modern architectures, and deliver high-quality enterprise solutions.

Key Responsibilities

Technical Leadership & Development

• Lead and mentor development teams in designing and delivering scalable software solutions.
• Architect and implement microservices-based applications using Java and Spring Boot.
• Drive end-to-end software development lifecycle (SDLC) including design, development, testing, and deployment.
• Perform code reviews, enforce coding standards, and ensure best practices.

Application Design & Architecture

• Design and develop cloud-native applications using AWS and PCF environments.
• Migrate legacy monolithic systems to microservices architecture.
• Implement scalable, secure, and high-performance solutions using DDD and modern architecture patterns.
• Develop RESTful APIs and integrate enterprise systems using messaging frameworks (Kafka, MQ).

Cloud & DevOps

• Work extensively with AWS services such as Lambda, S3, SNS, and SQS.
• Implement CI/CD pipelines using Jenkins, Maven, and Git-based workflows.
• Deploy and manage applications in cloud and containerized environments.

Stakeholder & Client Management

• Collaborate with business stakeholders to translate requirements into technical solutions.
• Lead client discussions, gather requirements, and provide technical recommendations.
• Ensure alignment of technical deliverables with business goals.

Testing & Quality Assurance

• Implement Test-Driven Development (TDD) using JUnit and Mockito.
• Conduct system testing, integration testing, and defect resolution.
• Drive quality improvements through automated testing and monitoring.

Security & Compliance

• Design and implement secure applications using frameworks like OAuth2, SAML, LDAP, JWT, and SSO.
• Ensure compliance with enterprise and industry security standards.

Technical Skills

• Programming Languages: Java (Core, Java 8/11), Python, Kotlin
• Frameworks: Spring Boot, Spring MVC, Hibernate, JPA, Microservices
• Cloud Platforms: AWS (Lambda, S3, SNS, SQS), PCF
• Messaging Systems: Kafka, IBM MQ
• Databases: PostgreSQL, Oracle, MySQL, MariaDB
• Tools: Jenkins, Maven, Git, Jira, IntelliJ, Postman
• Web Technologies: REST APIs, SOAP, JSP, Servlets, JavaScript, HTML
• Security: Spring Security, OAuth2, SAML, LDAP, SSO, JWT
• Methodologies: Agile, Scrum, Kanban, TDD

Professional Experience Highlights

• Staff Software Engineer – M-DAQ (Singapore)
  Leading product development in fintech payments using Java, AWS, and microservices.
• Technical Lead – HCL (Client: Julius Baer Bank)
  Delivered CRM modernization and microservices migration in the banking domain.
• Software Engineer – IBM (Client: DBS Bank)
  Designed and implemented microservices architecture for payment systems; led Agile delivery.
• R&D Engineer – Rocket Software
  Developed data visualization and reporting solutions across multiple data sources.
• Software Developer – Amdocs
  Built telecom billing and enterprise security systems (authentication, SSO, authorization).
• Application Developer – IBM India
  Worked on SAP BI/BW solutions in the retail domain.