Location: EUROPE (Europe timezone) | Type: Full‑Time
FifthRow is looking for a backend developer who shares our passion for clean, maintainable code. Someone who shows an ability and keenness for unit testing and can put into practice DRY and SOLID principles.
About us:
FifthRow is automating the work consultants do — and putting that power in the hands of enterprise teams. Our platform replaces expensive, manual research and strategy projects with autonomous agents that deliver the same results in days instead of months. Imagine the firepower of a McKinsey team — always on, always available, and always improving.
Our platform enables customers to:
- Spin up custom research agents and workflows
- Analyze unstructured data (web, PDFs, conversations)
- Generate strategic outputs: memos, decks, summaries, forecasts
- Operate entire innovation, diligence, and strategy workflows
We’re already working with global enterprises to automate use cases like investment memos, innovation scouting, market entry strategy, LP reports, and more — all using agent workflows that orchestrate LLMs, tools, and business logic.
Immediate start. 100% remote.
What You’ll Build
As a member of the development team, you will work to turn FifthRow into the core operating system for enterprise knowledge work.
The product includes:
- A Flow builder – autogeneration of agent chains and instructions within them
- Real-time agent orchestration, with memory, context routing, and judgment
- A suite of Apps that handle repeatable, high-value workflows (e.g., regulatory tracking, venture research)
- Outputs that integrate with email, PowerPoint, PDFs, internal systems, and customer CRMs
Under the hood, we use Next.js, Python, LangChain, OpenAI, AWS (SQS), and PGVector — but we’re open to better ideas and faster ways of scaling.
What we are looking for:
- Solid experience with Python3
- Experience integrating and consuming REST APIs in Python
- Experience with OAuth2 and communication with REST APIs in Python
- Extensive experience with interacting with LLMs, such as ChatGPT
- Knowledge of Langchain/Langraph
- Familiarity with advanced prompting techniques and common RAG strategies
- Experience with evaluation frameworks and assessing AI performance
- Knowledge of LLM agents and tools
- Knowledge of Git
- An obsession with performance
- Solid experience working in Agile development teams
- Experience with relational databases
- Knowledge of AWS is a plus
- Experience with libraries FastAPI, SQLAlchemy is a plus
- Experience with Document DB - (Mongo, DynamoDB) is a plus
Why You Should Join Us
- Massive market — Enterprise consulting and research is a $ 200 B+ industry, and it’s ripe for automation.
- Clear product-market fit — We’re revenue-generating, profitable, and growing fast with Fortune 500 logos.
- World Class Team — You will join a strong team that works fast, independently, and together to define solutions that work
- Founding tech role — You’ll shape the team, culture, and stack from here forward.
- Backed by experience — The founder has launched 100+ ventures and scaled multiple profitable businesses.
Interested?
If you’re excited about building a platform for an autonomous workforce and want to join one of the most ambitious AI platforms out there - Let’s talk. .