<br><strong>Job description</strong><p>We are building modern, customer-facing software for the temp-staffing industry, integrating capabilities from multiple ERP systems and countries into reliable applications, workflows, services, and reusable platform components.<br><br><strong>We are looking for a product-minded senior fullstack engineer </strong>who can turn ambiguous business requirements and complex existing systems into production-grade backend services, APIs, integrations, internal tools, and intuitive user interfaces.<br><br>TypeScript is central to our technology landscape. Experience with .NET and C# is strongly valued, while engineers with a background in strongly typed languages such as Java are also welcome. Comfort working across different stacks and languages is essential.<br><br><strong>AI and LLM tooling are central to how we work.</strong> You should use AI-native workflows to explore faster, build in parallel, validate assumptions, and ship high-quality production solutions. You should care about correctness and maintainability, understand integration and business edge cases, choose simple and robust solutions, and own outcomes from exploration to production.</p><br><strong>Your tasks</strong><p><ul><li><strong>Fullstack Product Engineering:</strong> Build customer-facing applications, backend services, APIs, internal tools, admin interfaces, automation, job runners, and configurable workflows</li><li><strong>Backend &amp; Domain Logic:</strong> Design maintainable services, APIs, business logic, asynchronous processes, validation rules, and reusable components</li><li><strong>Frontend Engineering:</strong> Build intuitive and maintainable user interfaces using TypeScript and modern frontend frameworks</li><li><strong>Integrations:</strong> Connect applications with ERP systems, internal platforms, external APIs, databases, queues, files, and third-party services</li><li><strong>Cloud &amp; Production Ownership:</strong> Deploy and operate reliable cloud solutions, preferably AWS, owning monitoring, alerts, failure handling, security, performance, cost, and operational reliability</li></ul></p><br><strong>Your profile</strong><p><ul><li>Hands-on with Claude Code, Codex, and agent-based workflows; GitHub Copilot-style autocomplete alone is not enough</li><li>Familiar with worktrees, subagents, MCP, structured prompts, harness engineering, parallelization, and validating AI-generated code and analysis to production quality</li><li>Strong fullstack/backend experience, ideally with <strong>.NET and TypeScript</strong></li><li>Able to build production-grade services, APIs, scripts, tools, automation, and clean interfaces; comfortable with version control, review, debugging, testing, and existing systems</li><li>Strong understanding of application architecture, API design, domain modeling, integration patterns, asynchronous processing, and maintainable software boundaries</li><li>Comfortable with SQL, relational databases, schema