Develop and maintain scalable Java and Spring Boot backend applications and REST APIs. Optimize CPU, memory, and overall application performance; identify bottlenecks; resolve production issues; and contribute to architecture, code reviews, reliability, and scalability. The role also involves Node.js or Python FastAPI services, cross-functional collaboration, and potential work with GraphQL, generative AI, cloud platforms, containers, CI/CD, and monitoring tools.
Position Overview
We are looking for a Senior Java Backend Developer with strong experience in Java, Spring Boot, and backend application development. The ideal candidate should have a solid understanding of application performance, including CPU and memory optimization, along with hands-on experience in Node.js or Python FastAPI. Exposure to Generative AI and/or GraphQL will be an added advantage.
Key Responsibilities
- Design, develop, and maintain scalable and high-performance backend applications using Java and Spring Boot.
- Develop robust RESTful APIs and backend services following best practices for security, scalability, and maintainability.
- Analyze and optimize application performance, with a strong focus on CPU utilization, memory management, and overall system efficiency.
- Identify performance bottlenecks and implement appropriate optimization and tuning techniques.
- Collaborate with frontend, DevOps, architecture, and product teams to deliver end-to-end solutions.
- Develop or integrate services using Node.js or Python FastAPI as required.
- Troubleshoot complex production and application-level issues and drive root-cause resolution.
- Participate in code reviews, technical discussions, and architectural decision-making.
- Contribute to improving application reliability, scalability, and performance.
- Stay current with emerging technologies and contribute to the adoption of modern backend engineering practices.
Required Qualifications
- Strong hands-on experience with Java backend development.
- Strong experience with Spring Boot and Spring-based application development.
- Solid understanding of CPU and memory optimization techniques in backend applications.
- Experience in identifying and resolving performance bottlenecks.
- Hands-on experience with Node.js or Python FastAPI.
- Strong understanding of REST APIs, microservices, and backend architecture.
- Good understanding of software development lifecycle, coding standards, and version control.
- Strong problem-solving and debugging skills.
Preferred Skills
- Exposure to Generative AI / Gen AI technologies and use cases.
- Experience with GraphQL and GraphQL-based APIs.
- Experience with cloud platforms and cloud-native application development.
- Familiarity with containerization and CI/CD practices.
- Experience with application monitoring and performance profiling tools.
Compensation, Benefits and Duration
Minimum Compensation: USD 44,000
Maximum Compensation: USD 154,000
Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role.
Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full time employees.
This position is available for independent contractors
No applications will be considered if received more than 120 days after the date of this post.
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What you need to know about the Boston Tech Scene
Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.
Key Facts About Boston Tech
- Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
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- Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
- Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories
