Senior Fullstack JavaScript Engineer

Senior Full Stack Software Engineer

Location: Remote or hybrid, Ireland

Tech stack: React, TypeScript, Node.js, AWS

A fast-growing, mission-driven technology company is expanding its Product and Engineering function as it enters a major phase of platform redevelopment and scale. The business delivers a digital-first service used by customers across Ireland and is investing heavily in modernising its web and mobile experiences.

This is an opportunity to join at a genuinely formative stage. The engineering team is rebuilding core systems and user interfaces, adopting a modern React and Next.js architecture aligned with an existing mobile application. You will play a key role in shaping both the technical foundations and the day-to-day product experience.

The role

You will join a small, highly collaborative engineering team with significant ownership across the full stack. The role spans front-end architecture, backend services and cloud infrastructure, with real influence over tooling, standards and technical direction.

What you will be doing

• Designing and building scalable, user-focused web applications using React and TypeScript
• Contributing across the full stack, including Node.js services and relational databases
• Playing an active role in front-end architecture and the migration to a modern Next.js setup
• Collaborating closely with product and design to deliver high-quality user experiences
• Influencing engineering standards, best practice and long-term technical decisions
• Writing clean, maintainable code with a strong emphasis on testing and quality

Core technical experience

• Strong commercial experience with React and modern JavaScript or TypeScript
• Solid backend experience using Node.js and API-driven architectures
• Experience working with relational databases such as PostgreSQL
• Familiarity with cloud-based environments, ideally AWS
• Understanding of modern front-end build tools and frameworks, including Next.js

Desirable experience

• Exposure to infrastructure-as-code or cloud automation tools
• Experience with state management libraries or component libraries
• Background in mentoring or supporting other engineers
• Experience working in early-stage or scaling product teams

What we value

• Pragmatic problem-solving and an ability to reason through technical trade-offs
• A collaborative mindset with the confidence to challenge ideas constructively
• High standards for code quality, testing and maintainability
• Curiosity and a genuine interest in learning and improving continuously
• Comfort working with autonomy and taking ownership of outcomes

Why consider this role

• Meaningful impact through technology that supports real-world outcomes
• Significant influence over architecture, tooling and engineering practices
• Clear progression towards a lead or principal role as the team grows
• Flexible working, with remote or hybrid options in Ireland
• Inclusive, supportive culture that values diversity and different perspectives