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Senior Java Developer

HeadFirst B.V. -
Hoofddorp

Nu solliciteren

Vacaturegegevens

Fulltime
€ 6.000 - € 8.500 per maand

Kwalificaties

Java
Databases
REST
GitHub
APIs
Veiligheid
AI
Spring
Hibernate

Volledige vacaturetekst

Hoofddorp, North Holland, Netherlands

€

6000 - 8500

40 hours

Tech & Digital, EN

Join us in building the future of HR Tech

At HeadFirst Group, we are redefining the flexible labor market with our platform Striive, connecting over 180,000 independent professionals, suppliers, and clients. From onboarding and matching to contracts, time tracking, and invoicing—everything runs on Striive. We’re a major player in the Netherlands and Belgium. But it’s time to expand.

The Opportunity

As we prepare for rapid international expansion into the UK, US, and other markets, our platform must scale to support multi-region operations, complex compliance requirements, and high-volume usage. To drive this evolution, we're looking for an experienced Java Engineer to ensure delivery excellence in a fast-paced, Agile, and international environment.

Are you an experienced Java developer passionate about building robust systems? Headfirst Group is looking for a Senior Java Developer to join our dynamic team. In this role, you will focus on designing, developing, and maintaining high-performance Java applications, making a significant contribution to our core infrastructure and backend solutions.

Your Responsibilities:

Be part of the development of scalable Java-based backend services.

Develop automation and integrations to streamline onboarding and operations worldwide.

Collaborate with cross-functional teams to define system specifications.

Optimize application performance and ensure system stability.

Drive best practices in coding, testing, and deployment.

Foster a culture of continuous improvement.

Here's what we offer you

Salary that matches your experience
You will receive a salary range that matches your knowledge and experience. We reward you fairly for your commitment and development.

Vacation pay and days off
You will receive 8.33% vacation pay and are entitled to 27 vacation days per year based on full-time employment. This gives you plenty of time to recharge your batteries.

Hybrid working
We support hybrid working and apply a 60/40 split, whereby full-time employees spend three days at the office and two days working from home.

Premium-freepension
We pay your entire pension premium. This means you accrue pension without having to contribute to it yourself. As a result, you are left with a higher net salary.

Performancebonus
Depending on your performance and that of HeadFirst Group, you may receive an annual bonus of one or two months' salary.

Monthly extras
You will receive a monthly allowance for internet, a vitality budget, a contribution towards lunch, and support in setting up your home office.

What we expect from you

Have a solid understanding of backend (Java 21, Spring Boot, Hibernate)

Be strongly committed to both high-quality, maintainable code and effective delivery

Experience with RESTful APIs, monorepo architecture, and cloud services.

Familiarity with databases and data integration techniques.

Proven experience using AI coding agents such as Claude, Codex, GitHub Copilot, or similar tools in day-to-day engineering workflows.

Ability to work effectively with AI-assisted development environments such as Cursor, VS Code, or equivalent tools, while maintaining high standards for code quality, testing, and security.

Strong problem-solving skills and a proactive mindset.

Ability to work collaboratively in a team environment.

Any questions?

Feel free to ask, I'm happy to help!

+31 (0)6 3927 2665

Sander van der Breggen

Recruiter

Application Process

Submit your application

We will contact youwithin 48 hours.

First interview

Assessment

Second interview

Job offer

Welcome to HeadFirst Group!

Your benefits at HeadFirst Group

27 vacation days

AND the possibility of adding or selling days. We work hard, but don't forget to relax.

Moments of celebration

With more than 450 colleagues, we always have something to to celebrate. As one team, we celebrate birthdays, anniversaries and other successes!

OpenUp & HeadFirst Group Academy

Work on your mental health with access to the platform OpenUp. We learn every day, which is why we offer you free trainings and courses to keep developing yourself.

Bonus

Achieve your goals and see this reflected in the form of a bonus? That's possible with us! Hard work is rewarded.

Hybrid working

Work at one of our 4 locations, at home, or at any wherever you feel comfortable. Of course you will receive a mobility and home working allowance from us.

Our headquarters

Take advantage of the free sports facilities, fine workstations and enjoy a delicious lunch buffet. A formidable competitor of home!

We are a Great Place to Work!

Nu solliciteren

Verfijn je zoekopdracht

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