C# Tech Lead - Global FX/Trading Platform

SGS Société Générale de Surveillance SA; Warszawa; Hybrid; PLN 240,000 - 400,000; Full time

Benefits offered by this job

Hybrid work (3 office days per week)

Health package with extensive dental

Meal allowance

Holiday fund

Sports card

Insurance

Home office equipment bonus

Job summary

SGS Société Générale de Surveillance SA in Warsaw is seeking a Technical Leader to guide architecture and engineering for critical FX, Rates, and Credit trading applications. You will stay hands-on, drive design decisions, and mentor a globally distributed team.

fluency in English is required; experience in Capital Markets and Blazor WebAssembly exposure are a plus. The role combines leadership with active development in a hybrid Warsaw office.

Qualifications

• Strong hands-on experience in C#/.NET and REST APIs with ASP.NET Core.
• Experience designing scalable microservices and cloud architecture (Azure preferred).
• Proficient in CI/CD pipelines, GitHub Actions and modern observability.
• Excellent communication with business stakeholders; global collaboration.
• Capital Markets knowledge (FX, Rates, Credit) is a plus.

Responsibilities

• Own architecture and technical design of major initiatives and products.
• Stay hands-on as a software engineer contributing to complex solutions.
• Lead code reviews, promote engineering best practices, mentor engineers.
• Participate in technical recruitment and onboarding of engineers.
• Drive modernization initiatives and explore AI-assisted approaches.
• Collaborate with Traders to deliver practical solutions and production support.
• Work with globally distributed teams across Warsaw, Paris, HK, and NY.

Skills

C# / .NET

ASP.NET Core REST APIs

Microservices architecture

Azure Cloud (AKS)

CI/CD pipelines

GitHub Actions

Observability (Elasticsearch, Kibana,)

OpenTelemetry

Serilog

Technical leadership

English fluency

Capital Markets experience

Tools

Azure AKS

Kubernetes

ElasticSearch

Kibana

Grafana

OpenTelemetry

Serilog

GitHub Actions

CI/CD tooling

Job description

SGS Société Générale de Surveillance SA in Warsaw is seeking a Technical Leader to guide architecture and engineering for critical FX, Rates, and Credit trading applications. You will stay hands-on, drive design decisions, and mentor a globally distributed team.

fluency in English is required; experience in Capital Markets and Blazor WebAssembly exposure are a plus. The role combines leadership with active development in a hybrid Warsaw office.