Full Stack Engineer – Node.js, Spring Boot, Java, Microservices & REST APIs

Job Summary

Synechron is seeking a Full Stack Engineer with strong expertise in Node.js, Spring Boot, Java, JavaScript/TypeScript, and modern web technologies. The role will focus on developing, enhancing, and supporting enterprise-grade applications that are scalable, secure, maintainable, and responsive.

The successful candidate will build backend services, RESTful APIs, microservices, and front-end components while contributing to performance optimization, database integration, CI/CD, testing, deployment, and production support. The role will support business objectives by delivering reliable technology solutions in an Agile environment.

Software Requirements

Required

• •Node.js: 5+ years of experience developing and maintaining backend services and applications.
• •Spring Boot: 5+ years of experience developing enterprise applications and microservices.
• •Java: 5+ years of professional development experience.
• •JavaScript/TypeScript: 5+ years of hands-on experience in full-stack or web application development.
• •REST APIs: Experience building, consuming, integrating, documenting, and supporting RESTful APIs.
• •Microservices: Experience designing and developing service-based applications.
• •Distributed systems: Strong understanding of distributed application concepts and service communication.
• •SQL/NoSQL databases: Experience with data storage, retrieval, integration, and data integrity.
• •Performance engineering: Hands-on experience with performance tuning, debugging, monitoring, and optimization.
• •CI/CD: Knowledge of automated build, testing, deployment, and release pipelines.
• •Git: Experience with source control, branching, code reviews, and collaborative development workflows.
• •DevOps practices: Knowledge of development and operational practices that support reliable application delivery.
• •Modern web technologies: Experience developing responsive and user-friendly front-end components.

Preferred

• •Experience in Banking or Financial Services.
• •Exposure to cloud platforms, including AWS, Azure, or GCP.
• •Experience with Docker and Kubernetes.
• •Experience with automation tools for build, testing, deployment, or operational support.
• •Experience supporting high-performance or distributed enterprise applications.
• •Experience optimizing application resource usage to support efficient and sustainable processing.

Overall Responsibilities

• •Design, develop, test, deploy, and maintain applications using Node.js, Spring Boot, Java, and JavaScript/TypeScript.
• •Build, consume, and support RESTful APIs and microservices.
• •Develop responsive, accessible, and user-friendly front-end components.
• •Design solutions that support scalability, maintainability, availability, and performance.
• •Work with SQL and NoSQL databases while maintaining data integrity and reliable data access.
• •Optimize application performance by identifying bottlenecks and implementing measurable improvements.
• •Troubleshoot application, integration, database, and production issues and provide timely resolutions.
• •Participate in code reviews and promote consistent coding, testing, documentation, and software engineering practices.
• •Contribute to automated build, testing, deployment, and release processes through CI/CD pipelines.
• •Use Git and applicable DevOps practices to support collaborative and reliable software delivery.
• •Collaborate with business and technology teams to understand requirements and deliver scalable solutions.
• •Participate in Agile planning, estimation, refinement, sprint execution, reviews, and retrospectives.
• •Support deployment, production validation, monitoring, incident resolution, and root-cause analysis.
• •Consider efficient use of compute, storage, and infrastructure resources during application design and optimization.

Technical Skills (By Category)

Programming Languages

Essential

• •Node.js with 5+ years of professional experience.
• •Java with 5+ years of professional experience.
• •JavaScript and/or TypeScript with 5+ years of professional experience.
• •Ability to apply programming principles to scalable backend and responsive front-end development.
• •Strong understanding of data structures, error handling, modular design, and maintainable code.

Preferred

• •Experience developing reusable libraries, services, or front-end components.
• •Experience with scripting for automation, testing, deployment, or operational support.

Databases/Data Management

Essential

• •Experience working with SQL databases.
• •Experience working with NoSQL databases.
• •Understanding of data modeling, querying, data access, transactions, and data integrity.
• •Ability to select and apply appropriate data-access approaches for distributed applications.
• •Experience troubleshooting database and data-integration issues.

Preferred

• •Experience tuning queries, indexes, and data-access patterns.
• •Experience supporting database migration, scaling, or modernization initiatives.
• •Experience designing data solutions for high-volume transaction processing.

Cloud Technologies

Essential

• •No specific cloud platform is identified as mandatory.
• •Understanding of cloud-based application deployment and operational considerations.
• •Ability to support applications across the designated project infrastructure.

Preferred

• •Exposure to AWS, Azure, or GCP.
• •Experience deploying and supporting Node.js and Spring Boot applications in cloud environments.
• •Experience with cloud scalability, availability, monitoring, and resource optimization.
• •Experience supporting cloud migration or application modernization.

Frameworks and Libraries

Essential

• •Node.js.
• •Spring Boot.
• •RESTful API frameworks and libraries.
• •Microservices frameworks and supporting components.
• •Modern JavaScript/TypeScript frameworks or libraries for responsive front-end development.
• •Libraries supporting SQL and NoSQL database integration.

Preferred

• •Experience with libraries supporting API security, automated testing, monitoring, resilience, and distributed communication.
• •Experience evaluating frameworks and libraries for maintainability, performance, and scalability.

Development Tools and Methodologies

Essential

• •CI/CD pipelines.
• •Git.
• •DevOps practices.
• •Agile development practices.
• •Code reviews.
• •Automated and manual testing practices.
• •Application deployment and production support.
• •Performance tuning, debugging, monitoring, and optimization.
• •Technical documentation and collaborative development practices.

Preferred

• •Docker.
• •Kubernetes.
• •Automation tools for build, testing, deployment, and environment management.
• •Experience implementing quality gates, deployment validation, and automated release controls.
• •Experience improving development workflows and delivery efficiency.

Security Protocols

Essential

• •Apply secure development practices across Node.js, Spring Boot, Java, REST APIs, front-end applications, and database integrations.
• •Protect application data, credentials, access permissions, and service integrations.
• •Apply input validation, secure API design, access control, error handling, and secure configuration practices.
• •Address security issues identified through testing, code reviews, monitoring, or production support.

Preferred

• •Experience securing cloud-based applications and microservices.
• •Experience integrating security controls into CI/CD pipelines.
• •Familiarity with security testing, vulnerability remediation, and secure deployment practices.

Experience Requirements

• •Required: 5+ years of experience in Node.js, Spring Boot, Java, and JavaScript/TypeScript.
• •Demonstrated experience developing and supporting enterprise-grade applications.
• •Experience building and consuming RESTful APIs and developing microservices.
• •Strong understanding of distributed systems and service-based application design.
• •Experience with SQL and NoSQL databases, data integrity, performance tuning, debugging, monitoring, and op