Senior Fullstack Developer

TrackMan; Hørsholm; On-site; DKK 700,000 - 1,000,000; Full time

Benefits offered by this job

Fitness center

Canteen

Forest surroundings

Job summary

TrackMan, the home of Trackman Bookings & Payments, is hiring a Senior Full Stack Developer to work across Next.js/React frontend and Node.js backend with a MySQL data model. You’ll help modernise a multi-tenant SaaS platform spanning bookings, memberships, pricing, and payments, both online and in person.

You’ll collaborate with UI/UX, Product, and QA to ensure quality and edge-case handling while contributing to code reviews and technical decisions.

Qualifications

• 4+ years of professional experience building production web apps.
• Experience across frontend and backend stacks (Next.js/React and Node.js).
• Strong TypeScript experience and migration exposure.
• Solid understanding of REST APIs and relational data modelling.
• Experience with testing and CI/CD practices.

Responsibilities

• Build features end-to-end for booking flows, checkout, and back-office tools.
• Collaborate with UI/UX, Product, and QA on scope and quality.
• Conduct code reviews and participate in technical discussions.
• Contribute to modernising the platform and ongoing TypeScript migration.

Skills

React/Next.js

Node.js

TypeScript

REST APIs

Relational data modelling

Testing/CI/CD

Tools

Strapi

Redux

RTK Query

MySQL

Git

Job description

Help build the platform that golf venues around the world run their business on. We are looking for a Senior Full Stack Developer to join the team behind Trackman Bookings & Payments, a multi-tenant SaaS platform covering everything from course and simulator bookings to memberships, pricing, and payments, both online and in person. This is a role for someone who enjoys working across the whole stack and likes getting deep into a genuinely complex domain.

What you'll do

• Build features end to end, from the booking and checkout flows players use to the back-office tools venue staff work in every day. That means working across a Next.js /React frontend, a Node.js backend, and the MySQL data model underneath.

• Work in a large, mature product that we are actively modernising, including an ongoing migration to TypeScript. You'll take pieces of that work and carry them through alongside feature delivery.

• Help raise our testing bar. Automated coverage is limited today, and we want it to grow with the code we touch.

• Work closely with UI/UX on how features look and behave, and with Product and QA on scope, edge cases, and quality.

• Contribute to code reviews and technical discussions, and help shape how the team solves problems.

What you bring

• 4+ years of professional experience building and maintaining production web applications. You might be early in a senior role today, or ready to take that step.

• Strong commercial experience with JavaScript and TypeScript on both sides of the stack: React (ideally Next.js) and Node.js.

• Comfort working in a large existing codebase. You enjoy improving code you didn’t write, and you’re as willing to work in older JavaScript as in new TypeScript.

• A good grasp of REST APIs and relational data modelling.

• A pragmatic approach to testing and CI/CD.

• Good communication and collaboration skills, and the ability to explain technical choices to non-engineering colleagues.

You don't need to arrive with a modernisation master plan. We have a direction. We're looking for someone who will take a piece of it, make good decisions in the detail.

Nice to have

• Experience with payment platforms or e-commerce / in-person payment flows (how gateways, acquirers, and schemes fit together), or with financial back-office concerns such as refunds, payouts, reconciliation, or reporting.

• Experience building or operating multi-tenant SaaS.

• Experience with Strapi, or another convention-heavy Node.js backend framework.

• Experience with Redux and RTK Query at scale, or with migrating legacy frontend state management.

• An interest in golf or sports technology.

The Office

We are located at DTU Science Park in Hørsholm. We take great pride in the state-of-art building we have designed! The office features bright meeting rooms, coffee areas to catch up with colleagues, a large testing arena with simulators available for employees and a fitness center, everything surrounded by a beautiful forest and respecting the environment. We made sure to utilize the newest technologies to be energy efficient and be mindful of ventilation and sound propagation. The cherry on top is our canteen: with an indoor and outdoor area to enjoy the fresh food prepared by our own kitchen staff.

Join the home of a powerful sports brand and a one-of-a-kind technology

Our proprietary technology is based on expert knowledge about radar, computer vision, data, and software engineering. Our solutions are developed by specialists who endlessly explore and challenge new technical boundaries. Trackmen's blend of cutting-edge technology, sports, and continued growth make our company an outstanding place to work.

Our work culture is entrepreneurial, ambitious, and rewarding as you get to collaborate with inspiring colleagues and interact with the leaders of golf, baseball, and football. Based on a unique brand reputation, we are proud to work in close partnership with the top athletes, organizations, and teams that rely on our technology to stay ahead of the race.

We are a Danish company founded, owned, and managed since 2003 by three entrepreneurs with a strong passion for sports. Today, we have a global footprint with our headquarters located in Denmark (Hørsholm) and offices in New York, Phoenix, Seoul and Tokyo. We employ over 1000+ people worldwide, half of which work in Denmark, where most hardware and software products are developed, tested, and manufactured.

Where innovation happens

At Trackman, we know that great people make great products. We believe that teams thrive, and innovation sparks in an atmosphere where people are encouraged to think for themselves, where everybody’s voices are heard, and where the best ideas prevail in the pursuit of exceptional solutions. This mix makes Trackman an inspiring company – for our customers and colleagues.

Share our Passion!