Jobs / Summary

Fullstack Engineer - Financing (Frontend-Leaning)

Confidential company · Berlin · Posted May 27, 2026

Public summary

A Berlin-based technology startup is seeking a Fullstack Engineer with a focus on frontend technologies to contribute to the development of financing solutions and digital operating systems for renewable energy installation, particularly heat pumps. The role involves building reliable software pipelines, collaborating with product management, and enhancing user experience, primarily using TypeScript, React, and Node.js within a hybrid work environment.

Location and work setup

Location
Berlin
Remote status
Hybrid
German requirement signal
No German Required Detected
Detected job language
English

Responsibilities

Collaborate in a newly formed international expansion team to build financing options such as buy now, pay later for customers, enabling flexible payment for renewable energy installations. Develop and maintain asynchronous backend flows including webhooks, retries, and failure handling. Build financing pipelines integrated into real installer workflows. Implement product-quality frontend features using React and Tailwind in close coordination with design teams. Instrument features with logs, metrics, and tracing to improve software reliability. Contribute to cross-functional testing strategies covering both frontend and backend components. Participate actively in defining the development roadmap alongside a dedicated Product Manager.

Qualifications

2-4 years professional experience in SaaS software development with strong full-stack capabilities, particularly in TypeScript, React, Node.js, and ideally NestJS. Experience or readiness to work with Go programming language and to manage Go-based services. Solid SQL skills with familiarity in PostgreSQL and object storage solutions. Ability to work with modern AI tooling. Demonstrated product mindset capable of turning ambiguous requirements into stable, user-facing features. Excellent English communication skills; German language skills are a plus. Located in Berlin with willingness to work hybrid (minimum three days per week onsite).

Skills

TypeScript React Node.js NestJS Go SQL PostgreSQL Async programming Webhooks API development UX design Testing strategy Product management English fluency Hybrid work