Senior Frontend Developer

Join Our Team as a Senior Frontend Developer

Want to lead technical discussions, shape architecture and build a product used by thousands in the live events industry?

About us

Rentman is a B2B SaaS scaleup building smart, powerful resource management software for event and production teams. Our users plan everything from small shoots to massive festivals in 70+ countries — and they all rely on Rentman to keep their gear, people, and timing perfectly in sync.

We’re based in Utrecht (NL) with a second office in Toronto (CA), and our team includes 100+ people from 30+ nationalities. We work in English, and our culture is open, inclusive, and flat — built on curiosity, ownership, and the freedom to challenge ideas.

Mission Of This Role:

As a Senior Frontend Developer at Rentman, you’ll lead the design and architecture of performant, scalable frontend systems used daily in real-time environments. You’ll shape reusable Angular components, guide architectural decisions, and collaborate across disciplines to deliver seamless UX in a complex SaaS platform.

What Are You Going To Do?

• Lead the design and implementation of reusable Angular components and modern UIs across the product
• Drive architectural improvements and frontend best practices to ensure long-term maintainability and scalability
• Be an active voice in tech alignment meetings, sprint reviews, and design reviews — initiating ideas and surfacing risks early
• Collaborate with backend developers, designers, and QA to deliver features from concept to release
• Take technical ownership of features — shaping implementation, anticipating edge cases, and ensuring quality
• Drive UX improvements with the Design team and help raise the bar for usability and accessibility
• Contribute to architectural decisions, tech alignment meetings, and frontend tooling improvements
• Mentor / pair with Medior & Junior developers to share knowledge and support onboarding
• Having fun doing all of the above

Our Stack

Rentman is a modern cloud-based web-application relied on daily by our users to administer movement of equipment and access data on the go.

Front-End

• Current version of Angular as our main frontend framework, using Typescript
• A mobile app developed with Ionic and Capacitor built using Angular components
• Compilation and bundling done by Webpack
• Websockets (NodeJS and SocketIO) to sync data between clients
• We work based on "Continuous integration" so our systems can separately run on different version

Back-end

• From a back-end perspective, Rentman consists of our internal API, a public API and a set of microservices. The internal API is quite intense on complex database calculations. Modern version of PHP and MySQL, used in our internal API. Modern versions of Laravel, used by some of the microservices. Our backend is deployed on AWS

Testing Approach

• Automated unit testing on every pull request
• Automated E2E tests with Ghost Inspector, running weekly and on-demand
• Automated mobile app tests with Appium and Webdriverio
• Weekly manual regression testing
• Manual testing on-demand

Methodology

We follow Scrum with two-week sprints and weekly releases. Our four self-organising dev teams each focus on their own product stream and consist of a product owner and 4 to 6 frontend or backend developers, one of them has the role of scrum master. A dedicated QA team supports testing and manages regression tests and releases. During a weekly 'Tech Alignment' meeting, developers together with the CTO discuss technology, address technical debt and decide on our technical roadmap. 20% sprint capacity can be used for initiatives on the technical roadmap.

Essential attributes to be a successful Senior Frontend Developer

• Deep Experience building modern single-page applications, writing efficient and scalable frontend code using Angular and Typescript.
• Expertise with testing tools like Jest, Karma, Jasmine, Cypress, Playwright, or Enzyme
• You care about code quality—writing clean, readable code supported by unit and integration tests
• Experience in collaborative, multidisciplinary product teams – you work well with backend engineers, designers, and product managers
• Scalability mindset – not only do you write scalable code, but you also help the company scale by sharing knowledge, improving processes, and raising the bar
• Solid foundation in computer science – an academic background in computer science or similar (bachelor/master)
• A personality that thrives at Rentman – strong ownership, collaborative spirit, curiosity, and a drive to solve complex problems together.

Nice-to-have attributes to make you a perfect match for the Senior Frontend Developer position

• Exposure to native app development (Java, Swift, Objective-C)—Rentman is a complex web app, not a website
• Mentoring & Coaching experience
• Experience working in real-time systems or SaaS environments
• Fullstack experience (some backend skills)

What you'll get

• An ambitious, inclusive, diverse international team
• Competitive salary range of €4,900 to €5,900 (+8% holiday benefit) based on experience
• A “13th month” annual bonus based on company results
• 25 days of paid vacation, plus aone extra day off each year up to your 5-year anniversary
• A paid 4-week sabbatical after 5 years to go on an adventure
• Flexible WFH policy & work from anywhere for 4 weeks a year
• A shiny Windows, Linux or Mac of your choice
• An Annual training budget to boost your skill
• A pension plan via BrightPensioen
• Access to OpenUp for mental well-being and personal growth
• Sports activities (Rentman football team, squash and padel) and a Onefit fitness subscription
• An OV Business card if you live further than 10km away from the office
• A flexible and engaging work environment with free lunches, office perks (PS5, Ping Pong, D&D), legendary karaoke parties, and various team activities
• An amazing office in the heart of Utrecht, Netherlands, at the historical Drift 17

At Rentman, we celebrate diversity and are committed to creating an inclusive environment for all employees. We believe that our differences make us stronger and strive to foster a workplace where everyone feels valued and respected.