Senior Full Stack Developer at Nextlab Ventures

NextLab Ventures A/S; Denmark; On-site; DKK 600,000 - 800,000; Full time

Job summary

Nextlab Ventures A/S in Denmark is seeking an experienced Full Stack Developer to join our AI-first venture studio. You will contribute across frontend, backend, databases, and integrations from planning to launch and ongoing improvement.

You will shape architecture, emphasize quality and security, and apply AI opportunities to product improvements while maintaining momentum in a fast-paced environment.

Qualifications

• Substantial full stack development experience with production systems.
• Ability to build from scratch and evolve existing platforms.

Responsibilities

• Develop products and features across frontend, backend, databases and integrations.
• Shape architecture with a focus on quality, security and scalability.
• Apply AI opportunities to product improvements and workflows.
• Build reliable solutions through testing, code reviews and continuous improvement.

Skills

Frontend & Backend development

APIs & Databases

CI/CD experience

Job description

Would you like to build SaaS products from the ground up and shape their technical direction? We are looking for an experienced Full Stack Developer with strong technical expertise, initiative, and a drive to keep learning.

About Nextlab Ventures

Nextlab Ventures is a venture studio that invests in and develops SaaS products. We turn ideas and market needs into digital solutions with the ambition of building successful, scalable businesses. We build our products in-house, from the ground up, and take an AI-first approach to everything we do. AI is considered from the outset across our products, technical solutions, and workflows to improve user experience, quality, and efficiency. We move fast, set ambitious goals, and keep decision‑making straightforward. Technology, product, and business are closely connected, giving you meaningful influence over both solutions and priorities.

About The Role

You will play a central role in developing our SaaS portfolio, working across frontend, backend, databases, and integrations—from initial technical planning to launch and ongoing improvement.

Your Main Responsibilities Will Include

• Developing products and features based on user needs and business objectives.
• Shaping architecture and technical decisions with a focus on quality, security, and scalability.
• Using AI actively in development and turning relevant opportunities into product improvements.
• Building reliable solutions through testing, code reviews, and continuous improvement.
• Contributing to effective engineering practices and technical discussions.

Your profile

You have substantial full stack development experience and have held significant responsibility for software in production. You can build from scratch, improve existing systems, and maintain momentum as requirements and priorities evolve.

We Value Someone Who

• Has strong skills in frontend, backend, APIs, and databases.
• Works efficiently and methodically, taking tasks through to completion.
• Takes initiative and proposes practical solutions and improvements.
• Combines an interest in AI with critical thinking and sound engineering judgement.
• Continuously develops their expertise, shares knowledge, and communicates clearly.

Experience with SaaS, cloud environments, and CI/CD is an advantage.

What We Offer

A role with substantial responsibility, meaningful influence, and varied technical challenges. You will work closely with decision‑makers and shape products from concept to market in an environment that values initiative, professional development, and fresh perspectives.