Job Description

Senior Back-End (.Net)

Department: Engineering

Employment Type: Full Time

Location: Portugal

Reporting To: Patrick Schmid

Your day-to-day activities:

• Designing and building integrations between the ERP, internal applications, and third-party vendor systems, over SFTP, APIs, and message queues
• Developing and maintaining .NET applications and services across the Azure estate
• Diagnosing and resolving SQL Server performance problems in production — deadlocks, timeouts, slow queries — and hardening schema and indexing so they stop recurring
• Building and maintaining Azure Logic Apps, App Services, and Azure SQL workloads
• Onboarding new vendors onto the integration platform as the business adds them, which is a continuous stream of work rather than a one-off project
• Engineering scheduled and batch jobs to production-grade reliability: failure handling, monitoring, atomicity
• Bringing structure to a codebase carrying real legacy: consolidating duplicated logic and retiring what can be retired
• Translating business workflows (finance, inventory, order management) into reliable technical solutions
• Establishing tests and documentation for the surfaces you own
• Participating in code reviews and pod ceremonies
• Triaging and resolving production incidents across the enterprise systems estate
• As a Senior team member, you will be expected to actively participate in our hiring processes by serving on interview panels for future roles across the company.

You’re a perfect match if you have:

• 7+ years of backend engineering with strong C# / .NET, including .NET Framework — the estate includes long-lived applications, not just greenfield services
• Deep Azure development experience: Logic Apps, App Services, Azure SQL, and the surrounding PaaS services, from a developer and DevOps perspective rather than a networking or IT infrastructure one
• Strong T-SQL and SQL Server fundamentals with genuine performance and reliability depth: query and index optimization, execution plan analysis, deadlock and timeout diagnosis, blocking and concurrency
• Enterprise integration breadth across multiple patterns: flat-file exchange over SFTP, direct REST and SOAP API integrations, and message-queue-based integration
• Experience integrating with third-party vendor systems where the other side dictates the contract and the capabilities vary widely
• Full ownership of what you ship, testing included
• The habit of documenting integration contracts, data flows, and decisions
• Fluency with AI-assisted development workflows
• Comfort improving live systems in production, including legacy code you did not write
• Proactive communication and familiarity with Agile/Scrum
• Excellent spoken and written English
• Ability to work with significant US Eastern Time overlap (LATAM/EMEA delivery hubs)