Hybrid Senior .NET Software Engineer

Posted 17 minutes ago

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About the role

  • Senior Engineer responsible for improving and modernizing a customer facing .NET platform at AccuSourceHR. Leading knowledge transfer and integration with existing workflows and systems.

Responsibilities

  • Run structured knowledge transfer covering architecture, module boundaries, data model, integrations, release process, known failure modes, and operational history.
  • Produce durable assets: architecture diagrams, runbooks, ADRs, onboarding guides, module maps, and a platform map that new engineers can use.
  • Own bug triage and prioritization and ship fixes and small enhancements based on customer feedback and usage signals.
  • Reduce recurring issues by addressing root causes and adding regression coverage, not just patching symptoms.
  • Keep a clear backlog and release notes so stakeholders know what shipped and why.
  • Build and evolve integrations with AccuSourceHR background screening workflows including APIs, identity patterns, data flows, and user journeys.
  • Lead a payroll provider integration end to end including data contracts, mapping, error handling, retries, reconciliation, auditability, and observability.
  • Plan and execute a staged upgrade toward modern .NET targeting .NET 8 or latest LTS without disrupting customers.
  • Build and maintain automated tests across unit, integration, and targeted end to end coverage for critical flows.
  • Mentor and onboard future engineers through pairing, code reviews, standards, and documentation.

Requirements

  • 7+ years building and maintaining .NET and C# applications across legacy and modern stacks.
  • Track record taking over a codebase you did not build and improving it safely over time.
  • Strong software engineering fundamentals: clean code, API design, debugging, and performance minded development.
  • Strong API and integration skills including auth, versioning, reliability, idempotency, and error handling.
  • Strong relational database skills in SQL Server and or MySQL including schema design, migrations, and performance tuning.
  • Automation first quality mindset with hands on experience writing and maintaining tests and CI gates.
  • Regular responsible use of AI dev tools that improves delivery while protecting IP and sensitive data.
  • Strong communication skills with the ability to explain tradeoffs to both technical and non technical audiences.
  • Experience writing design docs and leading design reviews for non trivial changes.

Benefits

  • Hybrid work setup — up to 3 days remote for flexibility.
  • Access to all essential work tools and tech.
  • IT equipment for your home office.
  • Private health insurance.
  • Free parking at our city-center office.
  • Snacks, coffee, and good vibes.

Job title

Senior .NET Software Engineer

Job type

Experience level

Senior

Salary

€4,240 - €6,360 per month

Degree requirement

Bachelor's Degree

Tech skills

Location requirements

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