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Senior Software Engineer

Wearehaystack — Germany · Posted ~4 hours ago

Senior

Skills

.NET C# RESTful APIs backend service design microservices distributed systems asynchronous communication application security information security REST

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Summary ✨ AI‑Generated

Join a senior engineering team building and operating robust backend software for a mission-critical identity platform. You will contribute across the full development lifecycle, collaborate with product and architecture stakeholders, monitor live systems, resolve incidents, improve performance and maintainability, and evaluate modern technologies. Strong professional experience with .NET/C#, REST APIs, microservices, distributed systems, asynchronous communication, and security principles is required.

Highlights

Senior-level opportunity to own end-to-end software development for a critical identity platform, with strong exposure to architecture, reliability, security, performance, and cross-functional collaboration.

Description

We're hiring on behalf of a Haystack partner! The Role • Design, develop, test, document, and operate robust software for a critical customer identity platform. • Participate in the end-to-end product development lifecycle, ensuring value, usability, and feasibility. • Collaborate with product managers, designers, and architects to deliver effective solutions. • Monitor system health and application metrics for a live platform, investigating and resolving incidents. • Propose and implement improvements to features, focusing on quality, performance, and maintainability. • Evaluate and recommend new technologies to enhance the codebase and architecture. What You'll Need • At least 5 years of professional experience with .NET/C# development. • Strong expertise in RESTful APIs and backend service design. • Experience with microservices architecture, distributed systems, and asynchronous communication. • Solid knowledge of application and information security principles. • Hands-on experience with cloud platforms (e.g., Azure), containerization (Docker), and CI/CD practices. • Experience with identity and access management technologies (e.g., OAuth, OpenID Connect). What's On Offer • Competitive salary • Opportunity to work in a hybrid environment with modern workspaces. • Be part of an international community with a mission to combine empathy, technology, and data. • Contribute to shaping the future of FinTech. Apply via Haystack today!