.NET Solutions Architect (Takeover and Modernization)

The role

We’re building a small, high-signal engineering team to take ownership of a large, mission-critical public safety / mobility platform currently operated by an external vendor.

The work is very “real world”:

• Parts of the system are legacy (ASP.NET Framework 4.8, WCF).
  
   
• Some services are already on .NET 8 (LTS).
  
   
• Releases are still partly manual today (controlled approvals).
  
   
• We’re moving toward automated CI/CD, clearer ownership, and a clean .NET 8 future state.
  
   

We’re also transitioning to a CIS-based team. That means the documentation you’ll inherit is… mixed. Some areas are well described, others are “tribal knowledge.” If you’re the kind of architect who can walk into a complex estate, make it understandable, and steadily modernize without breaking production—this is for you.

What you’ll actually do

• Figure out what’s really running: map the architecture as-is (components, integrations, environments, deployment paths). Create diagrams and docs the team will keep using.
  
   
• Own the modernization plan: design a phased path from 4.8/WCF toward .NET 8, with clear sequencing and risk control.
  
   
• Make the takeover safe: define boundaries, repo strategy, access model, and handover steps so ownership moves from vendor → internal cleanly.
  
   
• Build a secure delivery model: work within strict security and gated releases (Zero Trust principles, IAM/RBAC, auditability) with mandatory SAST scanning before release.
  
   
• Push CI/CD forward: partner with DevOps/Ops to replace manual deployment habits with auditable pipelines (approval gates, artifact integrity, rollbacks, zero-downtime where practical).
  
   
• Set engineering standards: API contracts, coding standards, ADRs—so the new team operates consistently from day one.
  
   

What we’re looking for

• 10+ years engineering experience, with 3+ years in an architecture leadership role.
  
   
• Strong, hands-on knowledge across both:
  
   
  • ASP.NET Framework 4.8 + WCF
    
     
  • .NET 8 (LTS) and modern service patterns
    
     
• Solid Azure architecture experience.
  
   
• Strong DB knowledge: SQL Server + MySQL.
  
   
• Comfortable working in environments where security and release governance are non-negotiable.
  
   

Nice to have

• Working knowledge of React/Angular ecosystems (enough to design BFF and integration approaches).
  
   
• Experience with Python or mobile integrations.
  
   
• Prior “vendor takeover” / modernization experience.
  
   

A quick honesty section

• You will see legacy code and uneven documentation.
  
   
• You will also have real influence: the goal is to leave this platform cleaner, safer, and easier to operate every month.
  
   

Apply with: a short note on the largest system you’ve modernized (what it was, what you changed, how you managed risk).