Intetics
Lead C# / .NET Engineer (Tech Lead - Backend) for 4-5 month project
InteticsUkraine12 hours ago
Part-timeOther
Intetics Inc., a global technology company providing custom software application development, distributed professional teams, software product quality assessment, and "all-things-digital" solutions, is seeking a highly skilled and experienced Lead C# / .NET Engineer to join our dynamic team on a long-term part-time basis.

Responsibilities

  • Own backend technical leadership: architecture, code quality, delivery plan, and hands-on implementation for the SAR area-based modules
  • Design and implement REST APIs and service-oriented backend components
  • Ensure robust observability:
    • Log key operations, including geospatial calculations and user actions
    • Build production-grade metrics (Prometheus/Grafana or equivalent)
  • Drive performance and reliability engineering, including preparation and execution of load/stress testing up to 3,000 simultaneous connections
  • Align the backend with security/traceability needs (auditability, immutable action history, etc.) and support integrations that rely on GOV.ID / QES / BankID (working with stakeholders that provide tokens/certificates)
  • Coordinate technical work with the project working group, and contribute to inception-stage outputs (detailed business processes + technical design) before implementation
  • Contribute to delivery and handover: deployment support, documentation, and warranty period collaboration through rollout support

Requirements

  • Strong hands-on expertise in C# and .NET (target: .NET 8+) and designing scalable web backends
  • Proven experience building API-first systems (REST), with strong data modeling and transaction integrity practices
  • Solid experience with relational databases and complex queries; ability to work effectively with PostgreSQL (nice to have PostGIS) teams and data models (you won't be the DBA, but you must be fluent in how geospatial data is stored/queried)
  • Nice to have - practical understanding of GIS-related backend needs (geospatial operations, topology constraints, format exports), and familiarity with libraries like NetTopologySuite / GDAL
  • Experience implementing logging/metrics and building observable systems (e.g., Seq, Prometheus, Grafana or equivalents)
  • Experience planning and executing performance testing; ability to define a validated load scenario (vendor responsibility) and run stress tests
  • Ability to lead engineers: code reviews, engineering standards, mentoring, estimation, risk management, and delivery ownership
  • Comfort working in a government/regulatory context where traceability, controlled changes, and formal acceptance processes matter
  • Ability to work with Ukrainian-language UI/UX and documentation constraints (you don't have to write perfect Ukrainian yourself, but you must plan for it and review content with the team)

Nice to have:

  • Experience with geospatial calculations and data integrity (intersection logic, validations, duplicate checks, etc.), collaboration with GIS engineers; leverage geospatial libraries where relevant (e.g., NetTopologySuite, GDAL)

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