Product Engineer; Backend​/AI

Backend/AI Product Engineer

At Briink, we're building AI technology for the global sustainability economy. Our technology helps automate how sustainability data is collected, analyzed, verified, and acted on. Through our work with global climate organizations, what you build at Briink will directly impact the sustainability workflows of more than 30,000 companies, investors, and cities worldwide. Based at Berlin's AI Campus, with a second office in London, and backed by over €7 million in funding, we want to prove that some of the world's most powerful technology can also be a powerful force for good.

As Briink's Backend/AI Product Engineer, you'll join a small, high-ownership product and engineering team building AI-powered products for sustainability professionals. This is not a narrowly scoped backend role. You'll take meaningful product problems from initial discovery and user conversations through technical design, implementation, and iteration to deploy them at scale across the ESG market. You'll combine strong backend and AI/LLM engineering with product judgement and the initiative to work out what should be built - not just how to action a predefined ticket.

You will:

• Own product features end to end, from understanding the user problem and defining the right approach through to delivery, measurement, and improvement.
• 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 rather than solving each problem in isolation.
• Improve the robustness of our systems, strengthening reliability, testing, observability, performance, and maintainability as we scale.
• Work directly with users, product, and data, using qualitative feedback and product data to understand the real problem and evaluate whether a solution works.
• Prototype and test new AI capabilities, turning promising ideas into practical product improvements that accelerate our roadmap.
• Bring thoughtful opinions and constructive challenge, helping the team make better product and technical decisions.
• Collaborate closely with other engineers, including through pair programming, technical design discussions, and shared problem-solving.

If your experience doesn't align precisely with all the criteria, don't worry! We encourage you to still apply. Many people miss out on opportunities because they feel they don't fit every requirement—we believe in attitude, growth and iteration, not perfection!

What we offer:

• Competitive salary and equity, reflecting your impact and ownership.
• Purpose-driven mission:
  Build tools that help organisations act more sustainably and make the ESG data ecosystem more transparent.
• Flexible hybrid setup:
  Berlin or London based candidates are strongly preferred, with access to our team and the wider startup community at the Merantix AI Campus.
• Trust and autonomy:
  Own meaningful problems, shape the product, and influence how we build as the company grows.
• A genuinely high-impact role:
  Increase our delivery capacity, strengthen the robustness of our platform, and accelerate product innovation.
• Dynamic environment:
  Work in a small, ambitious team at the intersection of applied AI, enterprise software, and sustainability.
• Learning budget and quarterly hackathons:
  Explore new technologies and prototype ideas that push Briink forward.
• A thoughtful hiring process:
  We are focused on finding the right person, and are willing to take the time needed to do so.