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Senior Java Backend Developer Jobs in New Hampshire

DEKA

Machine Learning Engineer

Manchester, NH

M.S. in Computer Science, AI, or a related field * 6+ years in backend software engineering and distributed systems * Strong proficiency in Java (Spring Boot, Spring MVC, Hibernate) and Python

Datavant

Senior Software Engineer

Concord, NH · On-site

$180K - $220K/yr

... Senior Software Engineer, you will lead major initiatives that advance Datavant's platform ... Backend: Python, Go, Java; microservices; REST and GraphQL * Frontend: TypeScript, React, Next.js

Ztek Consulting INC

Senior PC Developer

Portsmouth, NH · On-site

$55.50 - $73.25/hr

Solid understanding and handson experience with ObjectOriented Programming Java * Proven experience ... senior Majesco Billing developer who brings both handson technical expertise and leadership ...

Ztek Consulting

Senior PC Developer

Portsmouth, NH

$55.50 - $73.25/hr

Solid understanding and handson experience with ObjectOriented Programming Java * Proven experience ... senior Majesco Billing developer who brings both handson technical expertise and leadership ...

Datavant

Senior Full Stack Engineer

Concord, NH

As a Senior Full Stack Engineer, you will play a key role in growing our healthcare data ecosystem ... Backend: Python, Go, Java; microservices; REST and GraphQL * Frontend: TypeScript, React, Next.js

Stem Xpert

Java script Developers

Merrimack, NH · On-site

$52.25 - $67.50/hr

... engineering and systems integration. Our tightly integrated offerings are tailored to each clients ... Effective communication skills, both written and verbal Experience in front & back-end web ...

MeetHires

Software Engineer

Nashua, NH

Design and code middle and back-end in a clean and efficient way. * Implement scalable and robust ... Experience developing Java Web Services with public API (e.g. REST, SOAP) * Experience with ...

ATR International

Senior Cloud Engineer

Merrimack, NH · On-site

$125K - $165K/yr

Position Description We are looking for a Senior Software Engineer to join our Market Data team ... Java, Python, Cassandra database and knowledge of cloud platform, although we're open to strong ...

ATR International

Senior Cloud Engineer

Merrimack, NH · On-site

$125K - $165K/yr

Position Description We are looking for a Senior Software Engineer to join our Market Data team ... Java, Python, Cassandra database and knowledge of cloud platform, although we're open to strong ...

Samprasoft

Full Stack Engineer

Merrimack, NH

Java Full Stack Engineer We are currently sourcing for a Java Full Stack Engineer to work in Durham ... Knowledge of building and supporting server-side components using REST API and backend SQL /Stored ...

WongDoody

$135K - $178K/yr

Design and build production-ready AI services and backend systems * Develop APIs, orchestrations ... Optimize systems across quality, latency, operational cost, and developer experience Technical ...

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Senior Java Backend Developer information

See New Hampshire salary details

$62.2K

$136K

$185.3K

How much do senior java backend developer jobs pay per year?

As of Jun 21, 2026, the average yearly pay for senior java backend developer in New Hampshire is $135,995.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,200.00 and $152,200.00 per year, depending on experience, location, and employer.

What is a Senior Java Backend Developer job?

A Senior Java Backend Developer is responsible for designing, implementing, and maintaining the server-side logic of applications using Java. They work with databases, APIs, and cloud services to ensure high performance and scalability. Additionally, they collaborate with front-end developers, DevOps teams, and business stakeholders to deliver robust and secure solutions. Seniors are expected to mentor junior developers and contribute to architectural decisions and best practices.

What are the typical daily responsibilities of a Senior Java Backend Developer?

Senior Java Backend Developers usually spend their days designing and implementing backend components, reviewing code, and optimizing system performance. You may take part in architecture discussions, mentor junior developers, and troubleshoot complex technical issues. Collaboration with front-end developers, QA testers, and project managers is frequent to ensure seamless integration and successful product delivery. Additionally, you might be responsible for maintaining system documentation and keeping up-to-date with new technologies relevant to backend development. Overall, the role combines hands-on coding with leadership and cross-functional teamwork.

What are the key skills and qualifications needed to thrive in the Senior Java Backend Developer position, and why are they important?

To thrive as a Senior Java Backend Developer, you need deep knowledge of Java, object-oriented design, RESTful APIs, and database systems, typically backed by a degree in computer science or related field and several years of relevant experience. Expertise in frameworks like Spring, ORM tools such as Hibernate, version control systems like Git, and, often, certifications such as Oracle Certified Professional Java Programmer are valued. Strong problem-solving, leadership, and clear communication skills help in mentoring junior developers and collaborating across teams. These competencies ensure robust, scalable backend solutions and effective team coordination in complex software projects.

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Senior Java Backend Developer jobs near you

Machine Learning Engineer

DEKA

Manchester, NH

Other

Posted 6 days ago

Job description

We're looking for a Machine Learning Engineer who can operate at the intersection of backend engineering and applied machine learning. If you want to design distributed systems, deploy production ML models, and architect scalable data pipelines that make a measurable difference - this is your opportunity, and it starts with the software you design and deliver at DEKA.
This role is on-site at DEKA in Manchester, NH. Relocation is not available, local candidates only.
How You Will Make an Impact:

  • Design and implement scalable backend services and microservices powering data-intensive, real-world applications
  • Build and deploy production ML models across the full lifecycle from feature engineering and training through evaluation, deployment, and monitoring
  • Develop and maintain event-driven distributed pipelines using Apache Kafka, Apache Spark, and related technologies
  • Architect systems that integrate ML models with rule-based decision engines for automated, real-time decisioning
  • Collaborate across disciplines to translate complex requirements into reliable, elegant engineering solutions
  • Contribute to AI/LLM-driven workflows and orchestration systems that push the boundaries of what software can do
Required Experience/Knowledge:
  • M.S. in Computer Science, AI, or a related field
  • 6+ years in backend software engineering and distributed systems
  • Strong proficiency in Java (Spring Boot, Spring MVC, Hibernate) and Python
  • Hands-on experience building and deploying production ML models (PyTorch or equivalent)
  • Experience with distributed systems and streaming technologies: Apache Kafka, Apache Spark, ZooKeeper
  • Solid understanding of microservices architecture, REST/SOAP APIs, and object-oriented design
  • Experience with relational and NoSQL databases (Oracle, IBM Db2, MSSQL, MongoDB)
  • Familiarity with AWS or equivalent cloud platforms
  • Strong problem-solving skills
  • Intrinsic drive to understand how things work and make them better
  • Excellent communicating and collaboration across engineering, data, and product teams
  • Strong attention to detail

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