Senior Full-Stack Developer

Location: Esch Belval

Employment Type: Full-time

Experience Level: Senior

About Us:

We are an ambitious and fast-growing startup, working on building innovative digital solutions that make an impact. As a young company, we offer a unique opportunity to shape the future of our product, our technology, and our business. We are looking for a Senior Full-Stack Developer who is eager to wear multiple hats, take ownership of core features, and thrive in a dynamic, fast-paced startup environment.



We are searching for an experienced Senior Full-Stack Developer with deep expertise in Java, Spring Boot, VueJS, and MongoDB. This is not just a coding role - you will be a crucial part of our team, helping shape the architecture, technical decisions, and product vision. In a startup environment, your voice matters, and you'll work closely with our small, tight-knit team to build scalable, high-performance web applications. If you're excited about contributing to both the backend and frontend, enjoy tackling new challenges, and want to have a direct impact on the company's growth, we'd love to talk!

Key Responsibilities:

Full-Stack Development: Own the development and deployment of end-to-end web applications, from the frontend interface to the backend architecture, using Java, Spring Boot, VueJS, and MongoDB.

Backend Development: Design and implement scalable, secure, and maintainable APIs and microservices with Spring Boot and Java, managing data efficiently with MongoDB.

Frontend Development: Build modern, responsive, and interactive web interfaces using VueJS, focusing on delivering a seamless user experience.

Startup Versatility: As part of a small team, you'll need to be flexible and contribute to various areas - whether it's brainstorming new features, debugging critical issues, or improving development workflows.

Product Ownership: Collaborate with the founder and the team to take ownership of key features and drive them from concept to delivery.

Architecture & Design: Play a pivotal role in designing system architecture, making technical decisions, and ensuring code quality across the stack.

Performance Optimization: Continuously improve application performance and scalability to handle growing user traffic.

Team Collaboration: Work closely with the product team to align on business needs and technical solutions, contributing to the overall product strategy.

Mentorship: As one of the senior developers, help guide and mentor more junior team members as the team grows.

Required Skills & Qualifications:

5+ years of experience as a Full-Stack Developer, ideally in a fast-paced startup or small team environment.

Expertise in Java and Spring Boot, with hands-on experience building production-grade web applications.

Strong experience with VueJS (or other modern frontend frameworks like React or Angular), building user-friendly interfaces.

Solid knowledge of MongoDB or other NoSQL databases, with experience in database design and query optimization.

Experience with RESTful APIs, microservices architecture, and server-side development.

Ability to work independently and manage multiple responsibilities in a fast-paced environment.

A proactive approach to problem-solving and the ability to quickly adapt to new challenges and technologies.

Strong understanding of HTML5, CSS3, and JavaScript/ES6.

Familiarity with version control (Git) and development workflows (CI/CD).

Agility: Comfortable working in an Agile environment, with a willingness to adapt to changing needs and priorities.

Startup Mentality: Excited to contribute ideas, iterate quickly, and take ownership of projects from start to finish.

Bonus Points For:

Experience with TypeScript in frontend development.

Knowledge of cloud platforms (AWS) or containerization tools (Docker, Kubernetes).

Interest in DevOps practices and infrastructure management.

Experience working in small, cross-functional teams in a startup environment.

Why Join Us:

Startup Culture: Be a part of a passionate, energetic team where your ideas and contributions will have a direct impact on the company's growth and success.

Ownership & Impact: You'll have the freedom to take ownership of projects and see them through from conception to deployment.

Innovation: Work on exciting, cutting-edge projects where innovation is encouraged.

Flexible Work Environment: We offer a flexible, dynamic work environment that fits your lifestyle, including the possibility of remote work.

Growth Opportunities: As an early member of our team, you'll have significant opportunities to grow with the company, both personally and professionally.

Collaborative Team: Work directly with the founder and be part of shaping the future of the product and company.

An attractive salary with or without a company car