Senior Go Engineer: KYC, Risk & Fraud Backend

Softswiss; Warszawa; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Private health insurance

Sports benefits

Free English lessons (online)

Local language courses

Paid time off

Maternity leave support

Referral program rewards

Upskilling and conferences

Job summary

FinteqHub in Warszawa is hiring a Go Engineer to join our team working on KYC, Transaction Risk, and Anti-Fraud systems. You will design, build, and evolve backend services powering critical fintech platforms.

This role emphasizes ownership of complex problems, scalable architecture, and reliable production operations, with collaboration across Product, Risk and Compliance teams. Fluent English required.

Qualifications

• Extensive backend engineering experience in production environments.
• Deep practical Go experience in production systems.
• Strong understanding of distributed systems and microservice architectures.
• Experience designing and evolving APIs and backend contracts.
• Solid knowledge of relational databases and data modelling.
• Experience building reliable, secure, and correct production systems.
• Solid testing, observability, and production operations knowledge.
• Ability to reason about architectural trade-offs and drive ambiguous problems.

Responsibilities

• Designing and building reliable, scalable backend services in Go.
• Working on KYC, transaction risk assessment, and fraud prevention systems.
• Designing APIs, data models, and service boundaries.
• Making architectural decisions with long-term maintainability in mind.
• Building systems that operate reliably under production load.
• Improving observability, performance, resilience and tooling.
• Collaborating with Product, Risk, Compliance and other teams.
• Taking ownership from problem definition through production operation.
• Reviewing designs and code to raise engineering standards.

Skills

Go

Backend engineering

Distributed systems

APIs design

Relational databases

Security & reliability

Observability

Code reviews

English proficiency

Architectural decisions

Job description

FinteqHub in Warszawa is hiring a Go Engineer to join our team working on KYC, Transaction Risk, and Anti-Fraud systems. You will design, build, and evolve backend services powering critical fintech platforms.

This role emphasizes ownership of complex problems, scalable architecture, and reliable production operations, with collaboration across Product, Risk and Compliance teams. Fluent English required.