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Interim tech lead · Stockholm

An interim tech lead who still writes code.

When the team lacks direction, when releases run late or when a tech lead has left. I step in, set architecture and ways of working, and stay in the code. At Vattenfall I spent five years making sure four teams followed the same standards for design, performance and security.

Book a call See the work

Taking new assignments

What you get

01

Direction on one page

Architecture, priorities and ways of working that everyone in the room understands. Written down, so it outlives me.

02

Decisions that get made

Framework, platform, build or buy. The experience to choose fast and right, and to say no to what is not needed.

03

A team that grows

Code review, pairing and mentoring. The goal is that you do not need me when the assignment ends.

Areas

  • Solution architecture
  • Design systems
  • CI/CD
  • Azure DevOps
  • Code review
  • Agile practices
  • Requirements
  • Security
  • Performance
  • Mentoring
  • Technical due diligence

Selected work

Relevant experience.

  1. 2019–2024Vattenfall

    Solution designer · Vattenfall

    Web services that meant customers no longer had to call. One shared Angular framework across departments, CI/CD in Azure, and deployments without downtime.

    • Angular
    • Azure DevOps
    • .NET
    • Optimizely
  2. 2016–2017

    Senior frontend

    A video editor that runs entirely in the browser: cut, handle frames, caption. Built side by side with the backend team.

    • AngularJS
    • REST
    • Jenkins
  3. 2026

    Developer experience consultant

    Split a 259-project Nx monorepo so type-checking and the editor were fast again. Built tooling that keeps the structure intact.

    • TypeScript
    • Nx
    • Drizzle ORM
    • Next.js
All selected work

The network

One ice cube lifts the drink. An iceberg moves everything.

After more than 20 years in the business I have a network of senior specialists. When your problem needs more hands, I put together an A-team, hand-picked for you — from two people to a whole team.

  • Hand-pickedThe right skills for your problem — not whoever happens to be free.
  • ProvenSenior designers, developers and architects I have shipped with myself.
  • One contactI lead the team and answer for the result. You still talk to one person.
Build my team

How it works

Three steps. No surprises.

  1. 01

    We talk

    Thirty minutes. You tell me where it hurts, I listen and ask the questions that usually decide things.

  2. 02

    I draw the plan

    What gets built, in what order, and what it costs. On one page, so everyone in the room understands it.

  3. 03

    We build

    Short cycles. Real code in production early. You see progress every week, not at the end.

Common questions

Common questions about interim tech lead and solution architect

What does an interim tech lead do?

Takes technical responsibility for a team for a limited time: architecture, code quality, priorities and decisions. The difference from a manager is that I write code and make decisions from inside the team.

How long is a typical assignment?

Three to twelve months. Often until you have recruited, or until the team stands firmly on its own.

Can you help recruit my replacement?

Yes. Requirements profile, technical interviews and onboarding. I hand over when it is done, not when the clock rings.

Can you review our platform before a decision?

Yes, technical due diligence before an investment, acquisition or a major rebuild. You get a plain-language report with what actually matters.

Tell me where it hurts.

A few lines is enough. Tell me what you want to build, untangle or strengthen, and I reply personally within one working day.

Email hello@tagisen.com

Or call +46 79 337 85 47