Explore 2 senior full stack java react developer jobs from 1 hiring companies in Waterboro, ME, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Senior Full Stack Java React Developer

Sanford

Biddeford

Saco

West Scarborough

Westbrook

Rochester

South Portland Gardens

Portland

Buxton

Dover

Wells Beach Station

South Portland

Somersworth

Hollis Center

Alfred

York Beach

Old Orchard Beach

South Sanford

Portsmouth

Senior Full Stack Java React Developer Jobs

Liberty Mutual

Hybrid

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<div style="font-family: 'Arial', sans-serif; font-size: 12pt;">We deliver our customers peace of mind every day by helping them protect what they value most. Our passion for placing the customer at the center of everything we do is driving a transformational shift at Liberty Mutual. Operating as a tech startup within a Fortune 100 company, we are leading a digital disruption that will redefine how people experience insurance. At Liberty, you'll thrive in a hybrid setting that fosters in-person collaboration, innovation and growth. This approach optimizes both remote and in-person interactions, enabling you to connect and ideate with your team and deepen valuable relationships across the company, while still enjoying the flexibility of remote work for focused tasks and projects.   This role has a hybrid work schedule (2 days onsite) and we are considering candidates based in Portsmouth, NH and  Boston, MA. You must be authorized to work in the United States without employer sponsorship now or in the future. We will not sponsor employment visas. Candidates who will require future sponsorship, including candidates on CPT/OPT/STEMOPT who will require future sponsorship, are not eligible to apply. Job Introduction: The Global Finance Technology organization is looking to hire a Principal Full Stack Engineer. The candidate will be part of a talented agile team and will have the opportunity to work on cutting-edge projects. We are seeking a driven and creative individual who is able to think strategically and collaborate effectively with cross-functional teams. Candidate will be responsible for technical design and development of cross-functional, multi-platform applications that solve complex business problems. The role will be a highly visible hands-on technology driver supporting platform product development by creating innovative solutions, as well as driving solutions that modernize, stabilize, and support the growth of our portfolio. You will interact with business and tech teams and focus on solution design, development, debugging and performance tuning. About the job:<ul><li>Develop modern enterprise-level applications in the cloud.</li><li>Lead & mentor the technical design, development, and integration of solutions using existing and emerging technology platforms.</li><li>Influence and coach the broader technical team to help push best practices and understanding of modern design and development practices.</li><li>Define technology standards, guidelines, and coding practices for the platform.</li><li>Create architectures for large-scale web-based applications and technology solutions, by collaborating with other architects/technical leads.</li><li>Become a subject matter expert and gain a deep understanding of the Platform Application and Infrastructure framework.</li><li>Work closely with cross-functional teams and applicable vendors.</li><li>Hands-on development with a focus on application modernization, site reliability, containerization, and building appropriate API layers in Java Spring Boot, Node.js, and other distributed technologies.</li><li>Participate in critical production issues, driving teams towards incident & problem ticket closure.</li><li>Participate in fit/gap analysis of requirements, help manage user expectations on feature deliverables, provide tactical and strategic options to address issues and technical debt, and develop code to modern standards.</li></ul></div>

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<div style="font-family: 'Arial', sans-serif; font-size: 12pt;"><ul type="disc"><li>Bachelor's Degree in technical discipline, preferably computer science or software development or equivalent experience.</li><li>Minimum 8 + years of Full Stack Development experience primarily using the following technologies in addition to Java: React, MobX, Semantic UI, MySQL, Oracle, Git, and Docker.</li><li>Experience with AWS services for IVR, e.g., Lex and Lambda, plus Amazon Connect.</li><li>Experience with API development using NodeJS and TypeScript/JavaScript</li><li>Experience with application observability tools, e.g., DataDog.</li><li>Extensive professional experience developing applications using Java (Java 8+ / 11 / 17).</li><li>Strong proficiency in object-oriented design, data structures, and design patterns.</li><li>Hands-on experience with Spring / Spring Boot, including RESTful services and dependency injection.</li><li>Experience building and consuming APIs (REST, JSON, OpenAPI).</li><li>Solid understanding of multithreaded programming, concurrency, and performance tuning.</li><li>Experience with relational databases (Oracle, PostgreSQL, MySQL) and ORM frameworks such as Hibernate/JPA.</li><li>Familiarity with CI/CD pipelines, automated testing, and version control (Git) and GitHub Actions.</li><li>Strong troubleshooting skills with the ability to debug and resolve complex issues in production systems.</li><li>A design thinking, test-driven development, and shift-left mindset.</li><li>Ability to mentor others and raise a team's technical capabilities.</li><li>Hands-on involvement with layered systems architectures, designs and shared software concepts.</li><li>Experience working in an agile environment.</li><li>Excellent negotiation, facilitation and consensus-building capabilities.</li><li>Strong leadership, coaching and mentoring skills.</li><li>Proven ability to speak to varying levels of the organization and successfully collaborate across the organization.</li><li>Ability to work collaboratively with Agile methodologies (Scrum, Kanban) and cross-functional teams (Product Owners, Software Engineers, Test Engineers) to drive technology decisions and support engineering excellence.</li><li>Openness and adaptability to respond to fast-moving circumstances.</li><li>Excellent oral and written communication skills.Aptitude for working in teams.</li></ul>    </div>

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Pay Philosophy: The typical starting salary range for this role is determined by a number of factors including skills, experience, education, certifications and location. The full salary range for this role reflects the competitive labor market value for all employees in these positions across the national market and provides an opportunity to progress as employees grow and develop within the role. Some roles at Liberty Mutual have a corresponding compensation plan which may include commission and/or bonus earnings at rates that vary based on multiple factors set forth in the compensation plan for the role. At Liberty Mutual, our goal is to create a workplace where everyone feels valued, supported, and can thrive. We build an environment that welcomes a wide range of perspectives and experiences, with inclusion embedded in every aspect of our culture and reflected in everyday interactions. This comes to life through comprehensive benefits, workplace flexibility, professional development opportunities, and a host of opportunities provided through our Employee Resource Groups. Each employee plays a role in creating our inclusive culture, which supports every individual to do their best work. Together, we cultivate a community where everyone can make a meaningful impact for our business, our customers, and the communities we serve. We value your hard work, integrity and commitment to make things better, and we put people first by offering you benefits that support your life and well-being. To learn more about our benefit offerings please visit: <a href="https://LMI.co/Benefits">https://LMI.co/Benefits</a> Liberty Mutual is an equal opportunity employer. We will not tolerate discrimination on the basis of race, color, national origin, sex, sexual orientation, gender identity, religion, age, disability, veteran's status, pregnancy, genetic information or on any basis prohibited by federal, state or local law. Fair Chance Notices<ul style="color: black; font-family: 'Arial', sans-serif; font-size: 12pt;"><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2024/02/ca-fair-chance-act.pdf">California</a></li><li><a href="https://bca.lacity.gov/Uploads/fciho/FCIHO-factsheet-2024-03-05.pdf">Los Angeles Incorporated</a></li><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2025/01/FCOE-Official-Notice-Eng-Final-8.30.2024.pdf">Los Angeles Unincorporated</a></li><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2024/02/pa-philadelphia-fair-chance-law.pdf">Philadelphia</a></li><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2024/02/ca-san-francisco-fair-chance.pdf">San Francisco</a></li></ul>

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Principal Full Stack Engineer

8+ years full stack development with Java, React, Node.js/TypeScript; Spring Boot; AWS; REST APIs; SQL databases; Docker; CI/CD; mentoring.

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<div style="font-family: 'Arial', sans-serif; font-size: 12pt;">OverviewLocation & Work Schedule: These roles offer a hybrid work schedule (2 days onsite) and we are considering candidates based inthe following locations:Portsmouth, NH, Boston, MA, Plano, TX, Indianapolis, IN and Columbus, OH with a preference towards Portsmouth and Indianapolis. We manage claims for some of the most recognizable companies throughout the US and worldwide. In our claims organization, you'll be at the heart of where insurance promises are kept - helping people embrace today and confidently pursue tomorrow. We're looking for a Senior Software Engineer who loves variety, embraces new technologies, and is motivated by finding and delivering solutions to our business partners. If you excel in environments that span multiple disciplines and technologies, where you tackle a wide range of challenges, you may be the right candidate. The Senior Software Engineer will design, build, test, deploy, and support claims technology solutions. This role contributes across the full software development lifecycle, delivering new capabilities in Guidewire ClaimCenter v10.x and adjacent services, integrating with enterprise platforms, and ensuring solutions meet architecture and cybersecurity standards. We’re looking for both Guidewire ClaimCenter expertise and full stack developer experience. The Ideal CandidateYou're someone who comes alive when faced with complex challenges. You don't just see obstacles, you see opportunities to apply creative solutions. You thrive on variety in your work, enjoying the challenge of working across different technologies, platforms, and disciplines. You're a quick learner who's excited to continuously expand your technical repertoire. What you’ll doAs a Senior Software Engineer on our team, you'll work on our cloud-based claims platform with responsibilities that scale based on your level of experience. You'll tackle diverse initiatives, from targeted enhancements to large-scale, high-visibility modernization projects.<ul><li>Deliver features end-to-end: design, develop, test, deploy, and support software in an Agile product team.</li><li>Build and enhance solutions in Guidewire ClaimCenter v10.x (configuration and extensions) and related services.</li><li>Develop backend services and integrations using Java / Spring Boot, APIs, and event/integration patterns.</li><li>Create and maintain APIs and integrations using Apigee and enterprise integration standards.</li><li>Implement secure authentication/authorization patterns leveraging Ping Identity.</li><li>Design, optimize, and query data models; troubleshoot performance issues in SQL Server and application data flows.</li><li>Build and maintain CI/CD pipelines (e.g., GitHub Actions, automation, quality gates); use developer productivity tooling such as Copilot where appropriate.</li><li>Operate and support production systems: debugging, incident support, root-cause analysis, and reliability improvements.</li><li>Improve observability and operational readiness using Datadog and Splunk (metrics, logs, tracing, dashboards, alerting).</li><li>Participate in technical discovery/ideation, estimate work, write user stories/tasks, and contribute to documentation (runbooks, deployment guides, support docs).</li></ul>What we’re looking for <ul><li>Owns medium-to-large features end-to-end, including design, implementation, testing strategy, and production readiness.</li><li>Leads troubleshooting and performance tuning (application and database).</li><li>Drives API/integration work (Apigee patterns, identity/security considerations).</li><li>Improves engineering practices (CI/CD, test automation, code quality) and mentors others.</li><li>Ensures established standards for observability, deployment, resiliency, and developer productivity across teams.</li><li>Partners with product, architecture, and security stakeholders; makes and communicates trade-offs clearly.</li><li>Mentors team members and ensures High-Performing Engineering standards are chosen and monitored with the team</li><li>Strong software engineering fundamentals: clean code, testing, debugging, and design.</li><li>Experience integrating systems via APIs and working with enterprise standards (security, logging, monitoring).</li><li>Ability to work in Agile teams using modern delivery practices (iteration, experimentation, continuous improvement).</li><li>Effective communication and collaboration; able to document and explain technical decisions.</li><li>Experience and openness to utilizing AI Software Development Tools (GitHub Actions Copilot etc.)</li></ul> Why this role mattersYou’ll help deliver resilient, secure claims technology, improving customer and adjuster experiences and enabling faster, safer delivery through modern cloud and DevOps practices.</div>

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<div style="font-family: 'Arial', sans-serif; font-size: 12pt;"> Technology & environment<ul><li>Guidewire: ClaimCenter v10.x and above (SaaS certification is a plus)</li><li>Cloud/Runtime: AWS, Cloud Foundry, Kubernetes, Cloud Forge</li><li>Backend: Java, Spring Boot</li><li>Frontend: JavaScript and modern frameworks (React/Angular/Vue?team dependent)</li><li>API & Security: Apigee, Ping Identity</li><li>CI/CD: GitHub Actions, automation/testing tooling</li><li>Observability: Datadog, Splunk</li><li>Data: SQL Server; database design and performance optimization</li><li>AI Capabilities: MS Co-Pilot, LibertyGPT, GitHub Actions CoPilot</li><li style="color: #000000;">A Bachelor’s or Master’s degree in a technical or business discipline, or equivalent experience</li><li style="color: #000000;">5+ years of software engineering experience</li></ul> Preferred skills<ul><li>Guidewire ecosystem expertise beyond ClaimCenter (integration patterns, data model, upgrade experience, financial modules).</li><li>Experience with Cloud Foundry-to-Kubernetes modernization or hybrid deployments.</li><li>Advanced observability/SRE practices (SLIs/SLOs, error budgets, incident postmortems).</li><li>Experience with ETL/ELT or data integration patterns adjacent to claims workflows (especially Informatica IDMC).</li></ul> </div>

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Pay Philosophy: The typical starting salary range for this role is determined by a number of factors including skills, experience, education, certifications and location. The full salary range for this role reflects the competitive labor market value for all employees in these positions across the national market and provides an opportunity to progress as employees grow and develop within the role. Some roles at Liberty Mutual have a corresponding compensation plan which may include commission and/or bonus earnings at rates that vary based on multiple factors set forth in the compensation plan for the role.  At Liberty Mutual, our goal is to create a workplace where everyone feels valued, supported, and can thrive. We build an environment that welcomes a wide range of perspectives and experiences, with inclusion embedded in every aspect of our culture and reflected in everyday interactions. This comes to life through comprehensive benefits, workplace flexibility, professional development opportunities, and a host of opportunities provided through our Employee Resource Groups. Each employee plays a role in creating our inclusive culture, which supports every individual to do their best work. Together, we cultivate a community where everyone can make a meaningful impact for our business, our customers, and the communities we serve.  We value your hard work, integrity and commitment to make things better, and we put people first by offering you benefits that support your life and well-being. To learn more about our benefit offerings please visit:<a href="https://www.libertymutualgroup.com/about-lm/careers/benefits" target="_blank" title="https://www.libertymutualgroup.com/about-lm/careers/benefits" class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu194a _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu18uv _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b18uv _4fpr8stv _5goinqa1 _f8pj13af _9oik18uv _1bnxglyw _jf4cnqa1 _30l313af _1nrm18uv _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" data-renderer-mark="true" rel="noopener"> https://www.libertymutualgroup.com/about-lm/careers/benefits</a>     Liberty Mutual is an equal opportunity employer. We will not tolerate discrimination on the basis of race, color, national origin, sex, sexual orientation, gender identity, religion, age, disability, veteran's status, pregnancy, genetic information or on any basis prohibited by federal, state or local law.      Fair Chance Notices  <ul style="margin-top: 0in;"><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2024/02/ca-fair-chance-act.pdf" target="_blank" rel="noopener">California</a> </li></ul><ul style="margin-top: 0in;"><li><a href="https://bca.lacity.gov/Uploads/fciho/FCIHO-factsheet-2024-03-05.pdf" target="_blank" rel="noopener">Los Angeles Incorporated</a> </li></ul><ul style="margin-top: 0in;"><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2025/01/FCOE-Official-Notice-Eng-Final-8.30.2024.pdf" target="_blank" rel="noopener">Los Angeles Unincorporated</a> </li></ul><ul style="margin-top: 0in;"><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2024/02/pa-philadelphia-fair-chance-law.pdf" target="_blank" rel="noopener">Philadelphia</a> </li></ul><ul style="margin-top: 0in;"><li><a href="https://jobs.libertymutualgroup.com/wp-content/uploads/2024/02/ca-san-francisco-fair-chance.pdf" target="_blank" rel="noopener">San Francisco</a> </li></ul>

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Senior Software Engineer (Full Stack + Guidewire ClaimCenter, Cloud)

Software Engineer

5+ years software engineering; full-stack with Guidewire ClaimCenter v10.x; Java/Spring Boot; APIs/integration; cloud; CI/CD; observability; data and security practices.

Senior Full Stack Java React Developer Jobs in Waterboro, ME, US | HiringCafe: every job on earth

Senior Full Stack Java React Developer Jobs in Waterboro, ME, US

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