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Senior Backend Engineer (Golang, Distributed Systems)
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AI Summary
Build and scale real-time odds pipelines and APIs for a sports trading platform in Lisbon. Own scrapers, mapping layer, low-latency REST/WebSocket APIs, performance, monitoring, and architecture decisions. Requires 2+ years production Python backend experience, API and pipeline skills, PostgreSQL, and autonomy.
Key Highlights
Real-time odds infrastructure
300+ bookmaker sources
Around 400 B2B clients
Lisbon on-site
€70k to €80k base salary
Key Responsibilities
Build and scale scrapers that collect odds from hundreds of sources, reliably
Design the mapping layer that turns messy data into one clean, consistent feed
Ship low-latency REST and WebSocket APIs that clients plug into their trading systems
Improve performance, monitoring and resilience across the pipeline
Take part in architecture decisions and review your teammates' code
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Technical Skills Required
Benefits & Perks
€70k to €80k base salary
Relocation support
Around 20% flat income tax for eligible newcomers to Portugal
Self-hosted infrastructure
Squads of two that ship every week
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Nice to Have
Startup background, ideally in fintech, payments, crypto or trading
Redis or ClickHouse experience
An interest in sports, betting or markets
Job Description
Job Title: Backend Engineer (Python)
Industry: Sports Trading
Location: Lisbon (on-site)
Salary: €70k to €80k
Based in Lisbon, this is a rare chance to join a small, profitable team building real-time odds infrastructure used by the people who trade sport.
Their platform pulls live odds from more than 300 bookmakers and serves around 400 B2B clients, from prediction markets like Polymarket to hedge funds, market makers and major European bookmakers. Profitable, 21 people, mostly engineers, and growing every month.
They're looking for a Python backend engineer to own the pipelines and APIs at the heart of the product, where milliseconds matter because clients trade on the data.
Core Responsibilities
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