Backend engineer python in sports trading

Yofy; Lisboa; On-site; EUR 70,000 - 80,000; Full time

Benefits offered by this job

Relocation support

Lisbon office – on site

Self-hosted infrastructure focus

Job summary

Yofy, based in Lisbon, is building real-time odds infrastructure used by traders. You will join a small, profitable team of engineers to scale data ingestion from hundreds of sources and ship low-latency REST and WebSocket APIs for client trading systems.

We value autonomy, hands-on problem solving and robust data pipelines. This on-site role in Lisbon includes relocation support and a base salary of €70k–€80k, with about 20% tax for newcomers.

Qualifications

• 2+ years of backend Python in production (FastAPI, Django, asyncio or similar).
• Solid experience building APIs and data pipelines.
• Good command of PostgreSQL; Redis or ClickHouse is a plus.
• Experience with scraping or large data ingestion.
• Autonomy: you take ownership and move without hand-holding.
• You love hard performance problems.
• Honest, direct, no ego.
• Startup fintech/trading experience or interest in sports/betting is a plus.

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.

Skills

Backend Python

APIs & data pipelines

Low-latency systems

Ownership & autonomy

Performance optimization

No-ego teamwork

Tools

PostgreSQL

Redis

ClickHouse

FastAPI / Django

asyncio / concurrency

Job description

Описание

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.

Задачи

• 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

Требования

• 2+ years of backend Python in production (FastAPI, Django, asyncio or similar)
• Solid experience building APIs and data pipelines
• Good command of PostgreSQL; Redis or ClickHouse is a plus
• Experience with scraping or large data ingestion
• Autonomy: you take ownership and move without hand-holding
• You love hard performance problems
• Honest, direct, no ego
• You ship and never settle for good enough
• Будет плюсом: Startup background, ideally in fintech, payments, crypto or trading; An interest in sports, betting or markets (a plus, not a must)

Условия

• €70k to €80k base salary
• Lisbon office, on site, with relocation support
• Around 20% flat income tax for eligible newcomers to Portugal
• Self-hosted infrastructure: real systems work, no cloud vendor in between
• Squads of two that ship every week