Backend Engineer (Python)

Backend Engineer (Python) Senior level Full-time Remote in Romania Our partner is a Fintech startup founded a few years ago by two young Fintech enthusiasts. They are a B2B SaaS offering an innovative no-code platform that allows professional finance users to perform real-time analysis on huge amounts of data, create rules-based (systematic) investment strategies, and run complex financial simulations. Their clients typically manage from millions up to billions of dollars in their portfolios. Their platform is delivered through a fast web app and backed by a financial/math backend running on a proprietary, cloud-native, distributed calculation engine. They are a fully remote company, with team members from across Europe who have just completed their first external funding round and they are looking to accelerate growth this year, expanding their team and infrastructure. Benefits33 days total paid holiday per year (inclusive of any local national holidays) Stock options package worth 1 month's salary, granted at the end of the probation period (3 months after joining) Annual performance bonus paid as a mix of options and cash Private health insurance for the team and their spouses and children Work alongside and learn from top performers from the world's leading financial firms (Goldman Sachs, J.P. Morgan, Brevan Howard, etc.)Flexibility around working hours/days and a focus on making sure you are as productive as possible Small, friendly team; flat structure - you will report to the CTO/Founder; there is significant career growth opportunity as the company itself grows What They Look For: Good command of written and verbal English, in a technical context Comfortable working in an asynchronous, remote-first environment Interest in working on challenging engineering problems is more commonly found in top tech or finance companies Interest in working in a startup environment (fast-paced, more ownership and responsibility, results-focused, less structured/bureaucratic) Interest in writing high-quality code and comprehensive testing There is NO requirement for any finance knowledge; we will teach you what you need to know along the way Big Plus, But Not A MustPast experience in a high-growth tech startup is a big plusCS degree would be a plus, but not a must-have if there is relevant work experience to compensate Tech Requirements Minimum 5 years of professional engineering experience; minimum 3 years in backend development (Python) Experience with: any API/ web framework (Flask, Django etc.), SQL (any), Docker A plus but not a must: experience with an ORM (SQLAlchemy), Pandas, NumPy, AWS, CeleryNeeds to have successfully tackled trickier backend engineering problems (not just simple backend API); some examples, non-exhaustive: any big data workflows, async tasks scheduled and distributed over multiple servers, real-time services where speed/latency matters, memory-intensive workloads requiring significant optimizations, complex APIs with coordination across many clients, any time series related backend work (IoT, Finance, etc) Any frontend experience is a plus Tech Stack Backend: Python (Flask, Pandas, NumPy, SQLAlchemy), PostgreSQL, Pytest, GitLab, AWS.