Senior Software Engineer, Full Stack
Who we are
At NewNow, we build and deploy understandable and controllable AI solutions for enterprise clients, enabling them to lead a new era of market success. We tackle complex and challenging AI customization projects that demand creativity, precision, and a deep understanding of our clients' needs.
Completely bootstrapped and growing at 2x this year, we are on the solid path to organically outpace this growth next year.
Our founders include the former CFO of Procter & Gamble Europe, CMO of T-Mobile & SAB Miller, CMO of Motorola& CCO Climeworks, Founder & CEO of EWOR & Sigma Squared Society, and Founder of 4P Capital & 029.
To realize our ambitious growth, we’re looking for entrepreneurial minds who thrive in dynamic environments and lead themselves with confidence
What we offer
- Remote-first culture: Work from anywhere, with async collaboration and regular team meetups
- Ownership & autonomy: Shape your role and have a direct impact on company outcomes
- Ambitious mission: Build AI systems that are understandable, controllable, and truly valuable
- Collaborative team: Join a community of builders, founders, and changemakers
- Fast growth: Be part of a company scaling on its own terms – sustainably and with purpose
The Role
As a Full-Stack Developer,you are the technical lead responsible for building and delivering customized AI solutions together with our clients. Your expertise will be at the core of turning complex requirements and raw data into production-grade, user-facing products that drive real business impact.
You will be a key contributor throughout the entire product lifecycle—from design and prototyping to deployment and optimization. You’ll collaborate closely with top data scientists, machine learning engineers, and data engineers to deliver seamless end-to-end AIproducts. As part of a high-performance, dynamic team, you’ll help shape our technical foundation, define best practices, and contribute directly to ourfast-growing startup culture.
You will also work with the leadership team to help scale up NewNow, contributing to technical hiring, architectural decisions, and company strategy.
The role includes the following tasks:
- Design, build, and deploy web applications – owning both backend and frontend components
- Develop robust APIs and integrate data pipelines and machine learning models into products.
- Collaborate with data scientists and engineers to ensure smooth handoff and performance in production
- Own engineering decisions: architecture, tooling, code quality, and testing.
- Contribute to documentation and internal knowledge sharing to support long-term development and onboarding.
- Occasionally travel to team retreats or client workshops (primarily Frankfurt/Berlin or remote, CET ±2h)
What You'll Bring
- Master’s degree in Computer Science or related technical fields (Bachelors degree as minimum requirement)
- 3-5+ years of hands-on experience as a full-stack/software engineer in high-impact environments (startups, product companies, or top tech consultancies).
- Experience in full-stack development, including back-end (e.g., Python—with Flask, FastAPI, or Django—Go, Rust, PHP, or Java) and front-end (e.g., JavaScript, TypeScript), with familiarity in modern web frameworks and frontend libraries such as React.
- Experience deploying applications to on-premise or customer-managed environments, as well as cloud platforms such as Azure, AWS, or others.
- Strong understanding of integrating data science and machine learning models into production-grade systems.
- Ability to solve complex problems independently and collaboratively in a fast-paced, ambiguous environment.
- Attention to detail and a track record of maintaining clean, efficient, and well-documented code.
- Fluent in English; German is a strong plus.
