Senior NodeJS Developer | 60K-85K | Hilversum |

At our company, safety isn’t just a checkbox. It’s our mission. We help organizations in the construction and infrastructure sectors prevent accidents and protect their people. Our software enables workers to report incidents, flag unsafe situations, organize toolbox meetings, and run inspections, all from one intuitive platform.

Today over 200,000 professionals rely on our technology to keep job sites safer every day.

We’re a close-knit team of about 15 people based in the Amsterdam region. After a complete frontend rebuild we’re now entering a backend-focused phase, building new integrations, improving architecture, and scaling our platform. We’re looking for a developer who wants to take ownership of our backend and help shape the future of safety in construction tech. What you’ll do

Own and evolve Take full ownership of our backend platform with a domain-driven microservice architecture built on Node.js with Express, RPC protocols, and a MariaDB database.

Architect and design Lead the technical direction, design and optimize schemas, queries, indexing, and data models while ensuring performance, reliability, and security.

Build and integrate Develop APIs for our frontend and implement integrations with our broader product ecosystem such as shared authentication and unified dashboards.

Collaborate Work closely with our frontend developers and product team to deliver impactful features that improve safety outcomes on construction sites. Our stack

Backend Node.js, RPC-style microservices, MariaDB Infrastructure Bare-metal Linux migrating to Kubernetes Frontend React (TypeScript), Bootstrap, Redux Your profile

At least 3 years of experience with Node.js and MariaDB or MySQL in production environments Skilled in designing and maintaining service-oriented systems Security-first mindset with attention to authentication, authorization, and data privacy (GDPR) Strong communicator who enjoys working in a small collaborative team Fluent in English, Dutch is a plus Based in the Netherlands and available to work on-site part of the week Why join us

Become the key owner of our backend and make real impact without corporate layers Work on a mission with purpose by making construction safer Tight-knit, low-ego culture with quick decision cycles Competitive salary, pension plan, 25 vacation days, and travel reimbursement Senior java developer