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 optimization.
• Experience with CI/CD pipelines, Git, DevOps practices, testing, deployment, and production support.
• Preferred: Experience in Banking or Financial Services.
• Preferred: Exposure to cloud platforms, Docker, Kubernetes, and automation tools.
• Candidates may also qualify through an equivalent combination of relevant professional experience, technical training, demonstrable full-stack engineering capability, and successful delivery of comparable enterprise applications.

Day-to-Day Activities

• Design, develop, test, and maintain Node.js and Spring Boot services, REST APIs, microservices, front-end components, and database integrations.
• Collaborate with business and technology teams through Agile ceremonies, technical discussions, code reviews, testing sessions, and delivery planning.
• Deliver application features, automated tests, CI/CD changes, deployment updates, performance improvements, defect fixes, and technical documentation.
• Investigate production issues, identify root causes, make implementation decisions within established standards, and escalate risks affecting security, quality, performance, or timelines.

Qualifications

• A bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field is preferred; equivalent relevant education and professional experience may be considered.
• 5+ years of professional experience with Node.js, Spring Boot, Java, JavaScript/TypeScript, REST APIs, microservices, and SQL/NoSQL databases.
• Demonstrated experience with performance tuning, debugging, monitoring, CI/CD, Git, DevOps practices, testing, deployment, and production support.
• Certifications in Java, Node.js, cloud technologies, Kubernetes, DevOps, or Agile delivery are preferred but not mandatory.
• Maintain continuous professional development in full-stack engineering, Node.js, Spring Boot, cloud technologies, distributed systems, security, DevOps, and modern web development.

Professional Competencies

• Apply structured critical thinking and problem-solving to diagnose application, performance, integration, database, and production issues.
• Collaborate effectively with business, technology, quality assurance, and delivery teams to implement reliable solutions.
• Communicate technical concepts, implementation decisions, risks, progress, and resolutions clearly to technical and non-technical stakeholders.
• Adapt to changing requirements, technologies, project priorities, and operating environments while maintaining quality.
• Identify opportunities to improve application architecture, automation, performance, maintainability, security, and efficient resource utilization.
• Manage development tasks, testing, defects, production support, dependencies, and delivery commitments in an Agile environment.

S​YNECHRON’S DIVERSITY & INCLUSION STATEMENT

Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and is an affirmative action employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.

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