Staff Backend Engineer: Architect Scale & Reliability

Trading212; Poland; On-site; PLN 300,000 - 420,000; Full time

Job summary

Trading212 is seeking an experienced Staff Backend Engineer to shape the technical direction across multiple teams and domains. You will tackle high-consequence backend problems that span services and products, setting boundaries and architectural direction to avoid excessive central control.

The role emphasizes hands-on execution, strong engineering judgement, and mentoring senior engineers while partnering with product leaders on sequencing and long-term technical investment.

Qualifications

• Evidence of technical impact across multiple teams or a substantial product domain.
• Deep ownership of distributed backend systems operating at meaningful scale.
• Strong judgement in service boundaries, asynchronous communication, data ownership, consistency and failure modes.

Responsibilities

• Own high-consequence backend problems that span services, teams or product domains.
• Establish clear system boundaries and architectural direction without creating unnecessary central control.
• Lead technical decisions by making constraints, alternatives, risks and trade-offs explicit.
• Improve performance, resilience, data integrity, operability and failure handling across production systems.
• Resolve recurring structural problems rather than treating symptoms team by team.
• Remain hands‑on where implementation, diagnosis or prototyping is the fastest way to create clarity.
• Mentor senior engineers, raise review quality and make strong engineering judgement easier to reproduce across teams.
• Partner with engineering and product leaders on sequencing, risk and long-term technical investment.

Skills

Distributed systems

Relational databases

Architectural judgement

High performance design

Tools

PostgreSQL

Kafka

Docker

Job description

Trading212 is seeking an experienced Staff Backend Engineer to shape the technical direction across multiple teams and domains. You will tackle high-consequence backend problems that span services and products, setting boundaries and architectural direction to avoid excessive central control.

The role emphasizes hands-on execution, strong engineering judgement, and mentoring senior engineers while partnering with product leaders on sequencing and long-term technical investment.