Senior Developer fullstack, frontend & backend (m/w/d)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Full Stack Developer (Frontend- or Backend-Focused) in the European Union.
This role offers the chance to contribute to innovative digital solutions in the climate tech sector. You will work across the full software stack, developing both user-facing features and backend systems that support complex workflows. Collaborating closely with product managers, designers, and other developers, you will shape scalable and performant solutions with real-world impact. The position emphasizes autonomy, mentorship, and ownership, allowing you to influence architectural decisions, participate in DevOps practices, and improve the overall product experience. Whether your focus is frontend or backend, you will help create elegant, intuitive, and reliable software for a growing international user base.

Accountabilities
Develop scalable and high-performance features for MRV+ (Measurement, Reporting, Verification) and carbon marketplace platforms.
Collaborate with product managers, designers, and engineers to deliver reliable and maintainable software.
Translate complex requirements into clean, modular code across frontend and backend systems.
Lead architectural discussions and support system design decisions.
Participate in DevOps practices, CI/CD workflows, and post-deployment improvements.
Mentor junior developers and coordinate mid- to large-scale development initiatives.
Ensure that software solutions are user-centric, accessible, and responsive, delivering an exceptional user experience.

Requirements

• 5+ years of professional experience building production-ready web applications across frontend and backend.
• Strong understanding of software architecture, development workflows (Git, code reviews), and collaborative development practices.
• High degree of autonomy, creativity, and problem-solving skills.
• Proficient in English; German is a plus.
• Willingness to work in CET time zone with occasional travel.
• For frontend focus: expertise in React (or similar frameworks), HTML/CSS, modern JavaScript/TypeScript, and working knowledge of backend technologies like Java, Spring Boot, Hibernate, and SQL.
• For backend focus: expertise in Java, Spring Boot, Hibernate, SQL, and working knowledge of frontend technologies like React, HTML/CSS, and modern JavaScript/TypeScript.
• Bonus skills: Docker, Gradle, Kubernetes, Azure, PostgreSQL, cloud-native architecture, CI/CD workflows, observability, monitoring, and testing culture.

Benefits
Opportunity to make a tangible impact on climate change with an early-stage, innovative business.
Small, international, and rapidly growing team with shared mission-driven goals.
Flexible working hours, remote work, and hybrid options if near Freiburg.
Competitive salary and 30 days paid leave + bank holidays.
Time off and financial support for attending conferences.
Individual learning and development budget.
Access to Hansefit or Urban Sports Club memberships.
Mental health and wellbeing support (nilohealth).
Financial support for childcare costs.
Inclusive, friendly, and diverse team culture encouraging equal opportunity.

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.
When you apply, your profile goes through our AI-powered screening process designed to identify top talent efficiently and fairly.

• ##128269; Our AI evaluates your CV and LinkedIn profile thoroughly, analyzing your skills, experience, and achievements.
• ##128202; It compares your profile to the job’s core requirements and past success factors to determine your match score.
• ##127919; Based on this analysis, we automatically shortlist the 3 candidates with the highest match to the role.
• ##129504; When necessary, our human team may perform an additional manual review to ensure no strong profile is missed.

The process is transparent, skills-based, and free of bias — focusing solely on your fit for the role.
Once the shortlist is completed, we share it directly with the company that owns the job opening. The final decision and next steps (such as interviews or additional assessments) are then made by their internal hiring team.
Thank you for your interest!

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