.NET Developer

.NET
Developer (Senior, Viewport Team)

About Assai
Software.

Assai Software
develops enterprise-grade document and information
management solutions for large-scale engineering and
infrastructure projects. Its platform helps clients
manage complex technical documentation with advanced
workflow, control, and compliance capabilities.

Following the
acquisition of Viewport.ai, Assai is integrating
intelligent search and visualization into its ecosystem.
Viewport interprets engineering drawings, maintenance
records, and technical documents from multiple sources,
providing users with context-aware access to information
across the full asset lifecycle.

The
Role

Assai is
looking for a .NET Developer to strengthen the Viewport
development team. You will work on backend services that
power semantic search, contextual linking, and
visualization of engineering data. Together with the new
Product Owner and Technical Lead, you will help shape
the integration of Viewport into the Assai
platform.

Key
Responsibilities

• Design, develop, and
  maintain backend components using .NET and C#.
  
• Work on APIs and
  services that connect Viewport to Assai’s document management
  system.
  
• Collaborate with the
  Product Owner, Tech Lead, and other engineers to translate
  requirements into scalable solutions.
  
• Implement and improve
  data processing, indexing, and visualization logic for large
  technical document sets.
  
• Participate in Agile
  sprints, code reviews, and continuous improvement
  efforts.
  

Skills &
Experience

• 8+ years of experience
  in .NET development (.NET Core, .NET Framework, ASP.NET
  Core).
  
• Good understanding of
  object-oriented programming, software design principles, and
  clean code practices.
  
• Experience working
  with REST APIs, Entity Framework Core, Docker, Git and
  PostgreSQL.
  
• Basic familiarity
  with front-end technologies (HTML/CSS/JavaScript/React) is a
  plus.
  
• Experience with
  NHibernate, Dapper, unit/integration testing, SAML, GitHub
  Actions, Kubernetes, Helm Charts, Terraform, Open API, Open
  Telemetry, IIS is a plus.
  
• Exposure to Agile
  development methodologies (Scrum preferred).
  
• Understanding of
  version control (Git), unit testing, and CI/CD tools.
  
• Bachelor’s degree in
  Computer Science, Software Engineering, or related
  discipline.
  
• Willingness to learn,
  take initiative, and work collaboratively in a team
  setting.
  

What Assai
Offers

• Salary between
  €60.000 and €85.000 gross per year, depending on
  experience.
  
• Hybrid working model
  (Culemborg / Amsterdam office + remote days).
  
• International
  environment with growth opportunities.
  
• Technically driven
  culture focused on quality and innovation.
  
• Direct impact on an
  evolving AI-driven SaaS platform used by global engineering
  leaders.