Architecte Performance Java optimisant les applications et infrastructures d’entreprise de Fresche Solutions. Diagnostic d’incidents complexes, recommandations d’architecture et amélioration de la scalabilité, latence et fiabilité.
About the role
- Senior Software Engineer II developing payment gateway solutions for Versapay. Collaborating with cross-functional teams to enhance functionality and modernize architecture.
Responsibilities
- Design, develop and implement business logic for Versapay’s core payment gateway and related services using C#, .NET 4.8 and modern .NET Core frameworks
- Develop new features, maintain and enhance functionality across different product modules
- Implement new features, improve existing functionality, and fix defects in the payment gateway and related applications
- Write clean, well‑structured, well‑tested code with a strong focus on long‑term maintainability
- Work closely with Product, Design, and other Engineering teams to translate business requirements into technical solutions
- Contribute to technical design discussions and help evolve system architecture in collaboration with Senior and Principal Engineers
- Identify and reduce technical debt while balancing near‑term delivery with long‑term goals
- Support modernization efforts, including the evolution of legacy components toward more modular, service‑oriented designs
- Ensure appropriate levels of performance, scalability, resiliency, logging, monitoring, and security
- Continuously improve CI/CD pipelines, testing strategies, and operational readiness
Requirements
- 5+ years of professional software development experience
- Proficiency in C# and a deep understanding of the .NET platform, data structures, and algorithms
- Experience with Microsoft SQL Server and Postgres, including schema design and transactional systems
- Experience building and supporting backend services, APIs, and data‑driven applications
- Strong understanding of software engineering fundamentals: software architecture design, object‑oriented design, SOLID principles, design patterns, testing, and maintainable architecture
- English proficiency for daily communication within international teams
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Java Performance Architect diagnosing and optimizing enterprise Java environments for Fresche Solutions’ digital transformation clients. Designing scalable solutions and leading performance investigations across cloud and traditional stacks.
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