The ChallengeStuck building yet another admin panel at a consultancy? Tired of being the junior person who never gets to touch the interesting parts of the system? Ready to work on problems that actually require you to think?We are building the Adyen of the labor market. Just like Adyen revolutionized payments, we are transforming how people get contracted and paid in the Netherlands. It is a genuinely complex problem space, think CAOs, temporary employment regulations, payroll rules, and changing legislation, that needs smart engineers who want to learn and grow.This is real engineering work with real impactWho We AreMaqqie is one of the fastest growing tech companies in the Netherlands. We are in scale up mode, which means you will get exposure to serious technical challenges while still having senior engineers around to learn from. No corporate bureaucracy, no endless approval chains just building. Our mission is to create a digital labor market that works better for everyone. We handle contracting and payments for all employment types from permanent employees to temporary workers and freelancers. The regulatory complexity is immense, which makes the work fascinating and forces you to level up fast.What You'll Actually DoAs Medior Software Engineer you will be:Building real features: design and implement services and UIs that handle the complex logic of Dutch employment law, including rule engines, compliance checks, payment flows and integrations with external systemsOwning your work: take responsibility for your components from design through deployment and collaborate with Product Managers to understand requirementsSolving complex problems: the domain is not simple CRUD, you will need to understand CAO compliance, phase systems, benefit calculations and multi entity payrollOptimizing performance: identify bottlenecks, improve efficiency and ensure our systems can handle rapid growthGrowing your skills: you will work with senior engineers who will help you level up through formal training and daily code reviewsHelping others grow: mentor junior engineers and contribute to the team cultureYou'll work in cross functional teams with Product and Operations. We are 15 engineers across 3 teams, reporting to the Head of Engineering. Small enough to have real impact, big enough to learn from experienced people.The Technical LandscapeOur stack:Languages Kotlin Java TypeScript VueInfrastructure Google Cloud Platform Kubernetes DockerCI CD GitLab Pipelines JenkinsDatabases PostgreSQL MySQLBuild tools Gradle MavenWe are continuously modernizing. You will work on both improving existing systems and building new scalable modules. You will learn how to make architectural trade-offs, not just write code.What Were Looking ForEssential:3+ years of software development experience with a track record of shipping quality codeSolid technical foundation in backend developmentExperience with our stack or similar technologies and fast learning abilityStrong communication skills you can work effectively with cross functional teamsProblem solving mindset you do not just implement you think about the right solutionWhat matters more:You want to tackle complex problems not just easy ticketsYou're eager to learn and level up your skillsYou value autonomy and ownership over being told exactly what to doYou're frustrated by corporate process and want to just buildYou care about the business impact of your workEducation: Typically a Bachelor's in Computer Science Engineering or related field but we care more about what you can do than where you studiedNot exactly this profile but think you'd be great here Talk to us. We value potential and attitude over perfect résumésWhy You'd Choose MaqqieReal challenges: This is genuinely complex work. Employment law regulatory compliance multi-party transactions edge cases everywhere. You'll learn more in a year here than in three years at a typical consultancyGrowth trajectory: We're not hiring medior engineers to keep them medior. You will get mentorship from senior engineers, €2,000 annual training budget, and real opportunities to take on more responsibility as you prove yourselfOwnership: From day one you will own features and components. No junior developer jail where you only fix bugs for six monthsImpact: Your code directly affects how thousands of people get paid and contracted. You'll see the results of your work in the real world, fastScale-up energy: We're past the startup chaos but still small enough that everyone knows your name. You'll have influence on technical decisions and product directionTeam: Work with smart pragmatic people who actually want to help you grow. We work hard but we also laugh a lot. Team events, Viking Runs, cooking together we are building something togetherWhat We OfferCompensation:Gross salary: EUR 3,000 - EUR 4,500 per month based on 40 hours depending on experience8% holiday pay8% pension contribution25 vacation days based on 40 hoursDevelopment:EUR 2,000 annual training budgetMentorship from senior engineersReal technical challenges that expand your skillsClear path to senior levelWork environment:Hybrid workingCentral Rotterdam location 5 min from Central StationGroup lunches and nearby dining optionsLaptop and necessary equipmentCulture:Active staff association with outings and drinksFlexible budget of 40 per month Alleo for sports wellness investmentsAverage age is 33 young and ambitious teamFreedom from day one to do your thingGood to knowWe are a scale-up; we have legacy code and technical debt and we address itOur kantoor is in the center of Rotterdam at the Coolsingel opposite the City Hall. It is five minutes from Rotterdam Central Station. We are a hybrid company with the option to work from office, home or abroadThe Reality CheckWe are a scale-up which means a lot of things; Legacy code and technical debt, domain complexity Dutch employment law, building the foundation while the train is moving, things moving fast priorities shift, you'll be challenged and sometimes outside your comfort zoneOur 2026 MissionWe are building the future of the labor market in 2026 we will target other players staffing agencies and intermediaries who need our infrastructure to operate efficientlyThe ProcessSubmit your application Send your motivation and resumePhone interview Quick chat with the hiring manager LucOffice interviews 2 sessions Experience and CultureTerms discussion If we are both excited well discuss specificsReference check Standard but necessaryContract signingThe whole process typically takes 2-3 weeks. We move fast because we respect your timeNote Certificate of Good Conduct VOG is required within 1 month of startingQuestionsContact Eline Mimpen via the numberRecruitment agencies thanks but we are handling this internally