Product Engineer (Backend/AI) @Briink

About This Opportunity

We are representing a Berlin-based sustainability technology company working at the intersection of AI and climate action. Our client partners with global climate organizations and multinational enterprises to transform how environmental data is collected, analyzed, and acted upon. Their platform supports the sustainability workflows of thousands of companies and investors worldwide.

This is a high-impact Product Engineer role where you'll build AI-powered features that directly influence how major organizations approach their environmental responsibilities. You'll join a small, high-ownership engineering team building enterprise SaaS products for sustainability professionals.

Responsibilities

You will own product features end to end, combining backend engineering with AI/LLM development and product thinking:

• Take product problems from user discovery through technical design, implementation, and deployment at scale across the ESG market
• Design and build scalable backend systems including APIs, data models, workflows, and infrastructure for complex enterprise products
• Build and ship applied AI/LLM features such as LLM chains, RAG systems, tool-using agents, structured-output pipelines, and evaluation workflows
• Create reusable, extensible platform building blocks that support multiple user journeys and reporting workflows
• Improve system robustness by strengthening reliability, testing, observability, performance, and maintainability as the product scales
• Work directly with users and product data to understand real problems and evaluate whether solutions deliver value
• Prototype and test new AI capabilities, turning promising ideas into practical product improvements
• Collaborate closely through pair programming, technical design discussions, and shared problem-solving

What We're Looking For

Required qualifications:

• Strong professional backend engineering experience with a track record of designing and shipping reliable production systems
• Experience in a small, high-ownership product team, ideally within a startup or scale-up engineering organization of roughly 5–20 engineers
• Evidence of shipping meaningful products end to end, rather than owning only narrow components within larger organizations
• Strong experience in Python (or willingness to become productive in Python quickly if coming from Java, Ruby, or TypeScript)
• Strong API, database, and systems design skills with ability to model complex workflows and build maintainable foundations
• Applied AI/LLM experience or strong interest, ideally involving RAG, retrieval, tool use, agents, structured outputs, or evaluation systems
• Solid software-quality mindset including testing, code review, CI/CD, observability, and pragmatic approaches to reliability and security
• Cloud and container experience with understanding of deploying, operating, and scaling production workloads
• Fluent English (C1+), both written and spoken

Nice to have:

• Experience building workflow, reporting, questionnaire, or other complex B2B SaaS products
• Familiarity with FastAPI, PostgreSQL, background queues, LangChain, LangSmith, or other LLM frameworks
• Deeper experience with RAG, retrieval, agents, LLM evaluation, and production AI systems
• Experience improving latency, cost, and reliability for AI workloads
• Knowledge of ESG, sustainability, climate tech, or corporate reporting
• German language skills

Who you are:

• Kind and collaborative with strong communication skills
• Mission-driven with genuine interest in using technology to accelerate sustainability and climate action
• Sharp and curious, learning quickly and getting to the root of difficult problems
• Product-minded, thinking beyond tasks to focus on user problems and value creation
• Highly self-directed, thriving in fast-moving environments with autonomy and ambiguity
• Pragmatic and action-oriented, moving from ideas to experiments to production efficiently
• Opinionated but open-minded, challenging ideas constructively and welcoming pushback
• Commercially aware, balancing technical quality with user needs, business value, and speed

How We Work With You

Our talent team at Get A Job.ai partners exclusively with this climate technology organization to identify exceptional backend and AI engineers. When you apply through our platform, a dedicated recruiter will screen your background and discuss the opportunity in detail. If there's a strong match, we'll submit your profile to our client for consideration and guide you through their interview process.

Please do not attempt to contact the client directly, as all applications must come through Get A Job.ai to be considered. This ensures a coordinated and professional hiring experience for all parties.

Application requirement: As part of your application, please submit a short intro video (max 2 minutes) answering: Who you are and what you have built that is relevant for this role; why you're excited about owning and shipping AI-powered products in the sustainability space; and why climate and ESG technology resonates with you. Upload your video using any platform (YouTube unlisted, Loom, etc.) and include the link in your application.

Pay

Compensation details will be discussed during the screening process and are competitive for the Berlin market, reflecting the level of ownership and impact in this role.

Get A Job.ai is an equal opportunity recruiter. We welcome applications from candidates of all backgrounds and are committed to fostering an inclusive hiring process.