JohanHellstedt963.6 km this year

Experience

A concise timeline of the roles and impact I have delivered.

StartRoleWhereTime
2025Tech Lead/Team Lead - Backend
  • Worked as part of Sigma's in-house team, mentoring junior developers and leading backend development for an e-commerce platform built with .NET, React, and commercetools.
  • Designed and developed a CMS-driven content platform in a Turborepo monorepo using Next.js, React, Hono BFF API and Entra ID authentication. This was integrated with Optimizely CMS, Occtoo product data, and Caesar CRM.
  • Served as team lead with responsibility for the professional growth of eight team members through coaching and certifications, as well as fostering team culture through social and office initiatives.
Sigma Technology Digital SolutionsRunning1 y 7 mo
2022Backend Developer
  • Built an internal web application for the centralized distribution of products and beverages to Systembolaget stores across Sweden.
  • Owned the backend development, building it with .NET 8, a CQRS-based microservice architecture, and Azure services including App Services, Managed Identity, and Azure Functions. Developed the API as a pure REST API secured through Microsoft Entra ID app registration.
Avanade2 y 7 mo
2021Fullstack Developer
  • Joined through Softronic's trainee programme and moved on to a fullstack developer role.
  • Built the frontend for a startup's product in Angular, on top of a .NET 6 backend.
  • Developed the frontend in another project with Angular and Bootstrap, with .NET Framework also part of the stack.
Softronic1 y 5 mo
2020Software Developer
  • Spent much of the role on requirements management, capturing and structuring requirements ahead of development.
  • Created UML models to describe system structure and behaviour.
  • Built a proxy in plain JavaScript, with Express as the server.
Metodika7 mo
2018BSc Information SystemsStudied spring 2018 – spring 2020Örebro University School of BusinessGraduated 2020

Skills

From product interfaces to the services behind them. A practical look at the tools, boundaries and delivery decisions that shape my work.

  • Product

    Frontend and product interface execution

    Building clear, fast user interfaces with strong information hierarchy and predictable behavior.

    Core focus

    • Next.js server rendering and multi-market routing
    • Headless CMS integration with Optimizely Content Graph
    • Typed API contracts and runtime validation
    • Shared component systems and accessible interactions

    Stack and standards

    • Next.js 16
    • React 19
    • TypeScript
    • Optimizely CMS SDK
    • Zod
    • Tailwind CSS

    Deliver UI that stays maintainable as scope grows, without losing interaction quality.

  • Platform

    Backend and cloud platform engineering

    Designing backend services and cloud foundations with explicit boundaries, observability, and durability.

    Core focus

    • .NET APIs with application ports and infrastructure adapters
    • Elasticsearch product and material indexing
    • PostgreSQL persistence, outbox delivery and durable jobs
    • Entra authentication and external service integration

    Stack and standards

    • .NET 10
    • PostgreSQL
    • Elasticsearch
    • Redis
    • Entra ID
    • Azure Blob Storage

    Operate reliable services with low-friction deployment and traceable data flows.

  • Delivery

    Delivery leadership and engineering operations

    Driving delivery from planning through production with CI/CD discipline and team-level ownership.

    Core focus

    • End-to-end feature delivery planning
    • Versioning and release hygiene in Git
    • Independent web and API pipelines on Azure App Service
    • Technical coaching and quality reviews

    Stack and standards

    • Azure Pipelines
    • App Service
    • OpenTelemetry
    • Application Insights
    • Turborepo
    • Git

    Shorter lead time from idea to production with stable quality across releases.