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Minnesota software engineers building products that ship.

Difference Engine designs and develops production-ready software—web, mobile, and AI-powered systems—for startups and enterprises across the North and beyond.

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Senior product engineers
AI & integrations
Transparent delivery
iTerm — ~/projects/difference-engine
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          Proudly based in
            Minnesota
          
        

        

          Lake Superior North Shore
          Stone Arch Bridge, Minneapolis
          Cherry on a Spoon, Minneapolis
          Prairie and sky in western Minnesota
        

      

    

  


  
  

    

      

        
Technologies

      

    

  


  
  

    

      

        

          TypeScript
          JavaScript
          React
          Next.js
          React Native
          Node.js
          Python
          Django
          Flask
          Go
          Kotlin
          Swift
          Java
          .NET
          PostgreSQL
          MySQL
          Redis
          Kafka
          GraphQL
          REST
          AWS
          Azure
          GCP
          Terraform
          Docker
          Kubernetes
          CI/CD
          DevOps
          SecOps
          SRE
          Cypress
          Playwright
          Jest
          Vitest
          Angular
          Vue
          Tailwind
          Figma
          LLMs
          RAG
          Agents
          OpenAI
          LangChain
          Ray
        

        
      

    

  


  
  

    

      

        
Services

        
Full-stack product development from discovery to launch. Senior engineers only.
        

      

      

        

          

            
              
            
            
Web & Platform

          

          
React/Next.js, Node, Python, GraphQL/REST, PostgreSQL. Scalable,
            observable, secure.

        

        

          

            
              
            
            
AI & Automation

          

          
LLM features, retrieval, agents, and workflow automation with privacy
            by design.

        

        

          

            
              
            
            
Mobile

          

          
React Native apps with shared design systems and native performance.
          

        

        

          

            
              
            
            
Sprints & Rescue

          

          
Ship a feature, clear a backlog, or stabilize a codebase. We unblock
            teams.

        

        

          

            
              
            
            
E-commerce & Payments

          

          
Checkout flows, subscriptions, and marketplace integrations that
            convert.

        

        

          

            
              
            
            
Security & Compliance

          

          
Auth, SSO, SOC2 guidance, and secure-by-default architecture.

        

      

    

  


  
  

  
  

    

      

        
Approach

        

      

      

        

          
Discovery → Scope

          
Map goals to a deliverable plan with milestones, risks, and KPIs.

        

        

          
Design → Build

          
Accessible, responsive UI. Instrumented APIs. CI/CD from the start.
          

        

        

          
Measure → Improve

          
Ship value, measure outcomes, iterate with data—not vibes.

        

        

          
Handoff → Support

          
Knowledge transfer, docs, and optional retainers for continuity.

        

      

    

  


  
  

    

      

        
Based in Minnesota

        
We build with Midwestern pragmatism: clear scope, direct communication, and
          dependable delivery. On-site in the Twin Cities when it helps, remote-first when it doesn’t.

        

          Work
            with us
          
          LinkedIn
        

      

      

        
      

    

  


  
  

    

      

        
Start a project

        
Tell us what you're building. We’ll reply with a concise plan and timeline.

      

      

        

          
Get in touch

          
Email us your project details and we'll reply with a plan and timeline.

        

        

          

            
              
            
            hello@differenceeng.com