Full-Stack Engineer

Posted 5 Days Ago
Be an Early Applicant
Hiring Remotely in Croatia
Remote
Senior level
Healthtech • Information Technology • Software • Consulting
The Role
Develop and maintain full-stack functionality using Java, Spring Boot, React, and Next.js. Modernize large production systems, reduce technical debt, refactor legacy components, and maintain automated test coverage. Collaborate with product, design, QA, and engineering teams to deliver features from planning through deployment and production support. Participate in code reviews, Scrum ceremonies, hiring interviews, and process improvements while using AI-assisted development tools.
Summary Generated by Built In
Newfire Global Partners is a leading technology firm that specializes in building transformative software solutions for some of the world’s most innovative companies. With a presence across four continents, Newfire Global brings deep expertise in digital healthcare, AI-driven analytics, and enterprise technology. The firm’s track record of delivering scalable, high-impact solutions has made it a trusted partner for organizations seeking to drive meaningful change through technology.
We are passionate about the purpose-driven mission to help improve the quality of care for patients and are building a collaborative, innovative, and inclusive culture. We are a fully funded company founded by serial entrepreneurs with a stable client base.

Opportunity for impact

Newfire Global Partners, a leader in developing disruptive healthcare technology, collaborates with Fortune 500 companies and start-ups to drive transformation. 

Newfire is seeking a  Full stack
What's the Project?

Our client is a well-established company in the luxury retail industry undergoing a significant technology transformation. Newfire is taking ownership of the client's engineering ecosystem, including its core e-commerce platform, multiple online storefronts, and ERP integrations, with the goal of modernizing the platform and dramatically accelerating software delivery.

As part of this engagement, we're building a team of experienced engineers who enjoy solving complex technical challenges, improving large production systems, and working through real-world technical debt. This is not a greenfield project—it's an opportunity to make a meaningful impact by increasing reliability, scalability, and development velocity across a business-critical platform.



Your day-to-day activities:
  • Take part in Scrum ceremonies (daily stand-up, retrospective, planning)
  • Design, develop, test, and maintain both backend (Java/Spring Boot) and frontend (React/Next.js) functionality.
  • Continuously improve the existing production codebase by reducing technical debt and increasing maintainability.
  • Refactor complex legacy components while ensuring comprehensive automated test coverage.
  • Write clean, maintainable, and well-tested code following engineering best practices.
  • Collaborate closely with Product Managers, Designers, QA, and fellow Engineers to deliver high-quality customer-facing features.
  • Collaborate with Quality Assistance (QA) to write end-to-end tests and own the full life-cycle of feature development from planning to production deployment.
  • Review code, provide constructive feedback, and actively contribute to improving engineering standards.
  • Take ownership of features from implementation through deployment and production support.
  • Be proactive in identifying opportunities for technical improvements and process optimization.
  • Stay current with modern development practices and leverage AI-powered development tools to improve productivity and code quality.
  • Be accountable for delivering reliable, scalable, and maintainable software that provides business value.
  • As a Senior team member, you will be expected to actively participate in our hiring processes by serving on interview panels for future roles across the company.
Please note that employment will be contingent upon providing documentation verifying your legal work authorization in the country of residence, in accordance with applicable law.


You’re a perfect match if you have:
  • trong Full Stack Expertise: 6+ years of professional software development experience building and maintaining production applications.
  • Java & Spring Boot: Strong hands-on experience with Java (Java 11+), Spring Boot, and modern backend development. Experience working with both legacy and modernized systems is highly valued.
  • Frontend Development: Strong experience with React, TypeScript, and Next.js, building scalable, maintainable frontend applications.
  • Database Skills: Solid experience working with relational databases, particularly PostgreSQL, including SQL development, data modeling, and performance optimization.
  • Persistence Layer: Experience with JPA/Hibernate and database migration tools such as Flyway or similar.
  • Large Production Systems: Proven experience maintaining and modernizing large existing codebases while continuing to deliver new customer-facing features.
  • Testing Mindset: Strong commitment to writing and maintaining automated tests, especially when refactoring legacy code.
  • Problem Solving: Ability to safely refactor complex systems, improve code quality, and reduce technical debt without disrupting production.
  • AI-Assisted Development: Experience using modern AI coding tools to improve productivity through workflows such as AI-assisted code review, test generation, context management, or custom development agents.
  • Communication & Collaboration: Excellent communication skills and the ability to work effectively within cross-functional Agile teams.
  • Ownership: Ability to independently own features from design through production deployment while maintaining high engineering standards.



About
Newfire Global Partners is a leading custom software development company that specializes in working on complex problems. With a strong focus on meeting the unique needs of each organization, they connect clients with local leaders and trusted remote teams to deliver exceptional IT services and software development solutions. Their range of expertise spans various domains, including Data & Analytics, AI/ML, Software Engineering, Product Management, and Marketing. By leveraging recent innovations in artificial intelligence, Newfire Global Partners ensures that their clients can transform the new normal into a competitive advantage. Through their advisory services, experienced leaders guide businesses through transformations and de-risk operations throughout the entire lifecycle. They also offer talent augmentation, bringing together highly skilled professionals from multi-disciplinary teams to support software, product, and marketing needs. Newfire Global Partners is committed to providing excellent service and driving client growth. Their team of industry experts works closely with organizations, whether it's driving transformation, building from scratch, or getting things done efficiently. Trusted by VC & PE firms, established businesses, and startups, Newfire Global Partners is proud to be a reliable partner in various industries, including healthcare, enterprise, and fintech. Partner with Newfire Global Partners today and unlock the expertise that accelerates success.

Skills Required

  • 6+ years of professional software development experience building and maintaining production applications
  • Strong hands-on experience with Java 11+ and Spring Boot
  • Strong experience with React, TypeScript, and Next.js
  • Experience with relational databases, particularly PostgreSQL, including SQL development, data modeling, and performance optimization
  • Experience with JPA/Hibernate and database migration tools such as Flyway or similar
  • Experience maintaining and modernizing large existing codebases while delivering customer-facing features
  • Strong commitment to writing and maintaining automated tests
  • Ability to safely refactor complex systems and reduce technical debt without disrupting production
  • Experience using modern AI coding tools for code review, test generation, context management, or custom development agents
  • Excellent communication and collaboration skills within cross-functional Agile teams
  • Ability to independently own features from design through production deployment
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The Company
HQ: Cambridge, MA
Year Founded: 2016

What We Do

Newfire Global Partners is a technology and advisory firm founded in 2016. They specialize in software development, staff augmentation, and strategic advisory services, helping organizations navigate digital transformation. Their work spans high-impact industries, with a particular emphasis on digital healthcare, fintech, and cybersecurity. They focus on solving complex challenges through product-led thinking, business strategy, and the practical application of AI to drive measurable growth and operational success.

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