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Senior Integration Expert

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Juho Sopanen

juho.sopanen@witted.com

An established SaaS financial management and ERP solutions provider is seeking a Senior Integration Expert to join their product development team. In this role, you will contribute to the evolution of a core software product by building complex APIs, managing integration environments, and leveraging AI-native development methods to drive the platform forward.

Start: 1.8.2026
Duration: Approximately 6 - 7 months (until 31.1.2027)
Location: Remote (with occasional meetings in Helsinki or Lappeenranta)
Language: English (Fluent)

Tech-wise we're looking for:

  • Strong expertise in C# and .NET 10
  • Ability to read and understand VB.NET
  • Familiarity with SQL Server
  • Solid understanding of Docker, Kubernetes, and container testing
  • Strong grasp of OAuth, service accounts, REST-style APIs, and OpenAPI specifications
  • Understanding of AI spec-driven development and AI-native development methods/practices
  • Experience developing AI-native SaaS products (Advantage)
  • Experience building complex APIs and integration environments (Advantage)

Soft-skills we're looking for:

  • High level of seniority with the ability to support team members, challenge approaches, and show clear direction
  • Strong team player with highly effective communication skills
  • Results-oriented mindset with the ability to execute tasks efficiently and effectively

Other: Work will be conducted under an NDA. The client provides a laptop or support for your own device (including VPN setup), alongside all necessary development tools, licenses, and AI tools. Travel expenses for occasional office visits are reimbursable.

Interested? Please contact Juho (Witted) in Slack / juho.sopanen@witted.com

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