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Email careers@systemathics.com

Senior .NET developer - CDI

Posted on: July 30th, 2025

Mission

We are seeking an experienced Senior .NET Developer to join our development team. This permanent position offers the opportunity to work on Market Data Finance projects while contributing to the technical excellence of Systemathics. The ideal candidate will have 5-10 years of experience in .NET development and strong expertise in cloud infrastructure along with an interest for financial markets.

Responsibilities

• • .NET Application Development - Design, develop, and maintain robust applications using GRPC, ASP.NET Core and C#
• • Database Management - Work with PostgreSQL for data modeling, optimization, and complex query development
• • Container Orchestration - Deploy and manage applications using Kubernetes for scalability and reliability
• • Infrastructure as Code - Utilize Terraform for automated infrastructure deployment and management
• • Technical Leadership - Mentor junior developers and participate in architectural decisions
• • Code Quality Assurance - Conduct peer reviews, implement testing strategies, and maintain coding standards
• • Stakeholder Collaboration - Work closely with business teams to translate requirements into technical solutions
• • Performance Optimization - Monitor and optimize application performance and scalability

Requirements

• • 5-10 years of professional experience in .NET development
• • Expertise in ASP.NET Core framework, GRPC APIs and C# programming
• • Interest for financial markets
• • Proficient with PostgreSQL database design, optimization, and administration
• • Experience with Kubernetes for container orchestration and deployment
• • Knowledge of Terraform for infrastructure as code (preferred)
• • Proficiency in Git and modern development workflows
• • Strong problem-solving skills and attention to detail
• • Excellent communication skills in English (French is mandatory)
• • Experience with cloud platforms (Azure, AWS, Scaleway or OVH)
• • Familiarity with DevOps practices and CI/CD pipelines

Working Benefits

• • Permanent contract (CDI) with competitive salary package
• • Comprehensive health insurance and social benefits
• • Professional development budget and training opportunities
• • Flexible working arrangements and remote work options
• • Performance-based bonuses

Details

• • Contract type: CDI (Permanent Contract)
• • Location: Paris and/or remote work
• • Duration: Permanent position
• • Start date: Q4 2025