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Senior Software Engineer, Full Stack

Job in Portland, Cumberland County, Maine, 04101, USA
Listing for: MO
Full Time position
Listed on 2026-10-26
Job specializations:
  • Software Development
    Java Developer, Backend Developer, Full Stack Developer, Software Engineer
Salary/Wage Range or Industry Benchmark: 140000 - 157500 USD Yearly USD 140000.00 157500.00 YEAR
Job Description & How to Apply Below
Intro

At MO, we challenge the status quo and help government leaders shape the future. We engineer scalable, human-centered solutions that help agencies deliver their mission faster and better. Our teams blend product, design, AI, data, and modern software practices to modernize legacy systems, build new digital platforms, and deliver mission-ready products that drive sustainable change.

We live by our values—Integrity, Excellence, Courage and Curiosity. They guide how we build, collaborate, and lead. From cloud infrastructure and data engineering to AI integration and service design, we connect technology and experience to deliver outcomes that scale.

We’re building a company where technologists, designers, and builders can serve the mission, grow their craft, and help shape the future of digital government. At MO, your work doesn’t just make a difference—it advances the mission and helps build a more capable, trusted, and human government.

Overview

We are looking for a Senior Software Engineer to support our client, the Department of Veterans Affairs. In this role, you will help modernize VA’s eligibility and enrollment systems, supporting millions of Veterans, their families, and caregivers. If you have experience in working with VA, Next.js, Java 17+, and Spring Boot, we’d love to hear from you.

What You'll Do
  • Design, develop, test, and maintain enterprise Java applications

  • Analyze and resolve complex software defects and production issues

  • Support enhancements and sustainment activities for applications utilizing Java, Spring Framework, Struts, JSP, EJB, JMS, Web Logic, Hibernate, Oracle, and related technologies

  • Collaborate with architects and senior developers on modernization initiatives

  • Develop and optimize SQL queries and database integrations

  • Participate in code reviews and mentor junior developers

  • Contribute to automated testing, CI/CD processes, and application deployments

This position requires demonstrated, hands-on experience with BOTH of the following:
  • Designing and implementing REST and SOAP-based services and integrations.

  • Developing and maintaining backend services using Java 17+, Spring Boot, microservices, JPA/Hibernate, and REST APIs.

What You’ll Bring
  • Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field (or equivalent experience)

  • 5–8 years of software development experience in professional environment

  • Strong hands on experience with Java development

  • Hands on experience with Spring Framework and/or Spring Boot

  • Hand on experience developing REST APIs and web services

  • Experience working with Oracle or other relational databases

  • Experience using Git-based source control

  • Experience working in Agile/Scrum environments

  • Strong troubleshooting and analytical skills

  • Strong verbal communication skills

Perks
  • A dynamic, high-trust environment with a diverse, mission-driven team
  • Competitive compensation commensurate with experience

  • Meaningful opportunities for career growth and learning

  • Comprehensive health coverage (medical, dental, and vision)

  • 401(k) with company match

  • Unlimited Paid Time Off (PTO)

  • Company-sponsored short- and long-term disability, plus life insurance

  • Company-sponsored parental leave

$140,000 - $157,500 a year

Compensation for this role is an annualized salary range of $
140,000
to $
157,500
plus benefits and growth potential.

To ensure equity and consistency across our compensation system, MO applies a structured salary framework. Offers are made within the posted range based on demonstrated competency and experience. This range is non-negotiable to maintain internal and external pay equity.

Note:
To ensure compliance with all state, county, and local employment and tax regulations, applicants must currently reside in one of the following states…

Position Requirements
10+ Years work experience
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