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DJTL

Currently on assignment at Klarna

Creative solutions for creative thinking people.

DJTL is an engineering consultancy in Stockholm. We bring senior fullstack and AI engineering to teams that need it, without the overhead of a new hire.

Experience from

Selected work

Klarna is our current client. The work below is from our time at Vend, earlier consulting through Netlight and SolidX, and Zaga, a product we co-own.

All work
Vend2025 – 2026

Shared back-office for four Nordic marketplaces

Led the fullstack architecture behind the back-office shared by Blocket, FINN, DBA and Tori, and introduced an AI-assisted workflow that cut typical delivery time from about three days to one.

  • TypeScript
  • Node.js
  • GraphQL
  • React
  • Next.js
  • Microfrontends
Read case study
Zaga2023 – present

Zaga: personalized picture books made with generative AI

A product we co-own and build. Upload a photo, pick a theme, and Zaga writes and illustrates a story starring your child, then prints it as a hardcover book. Launching soon.

  • TypeScript
  • Next.js
  • Node.js
  • tRPC
  • PostgreSQL
Read case study
Blocket2022 – 2025

Replacing legacy back-office monoliths

Co-built the platform that replaced Blocket's legacy back-office monoliths, delivered on budget within two years and later adopted as the standard across Vend's marketplaces.

Read case study
Stabelo2022

Mortgage platform architecture redesign

Led parts of the architecture redesign for a Swedish digital mortgage lender, and built the services and admin tooling behind its loan and risk data.

Read case study
KlarnaOngoing

Fullstack engineering at Klarna

Driving initiatives across architecture and fullstack delivery on Node.js, React and PostgreSQL since April 2026. A case study will follow when the engagement ends.

What we do

Senior, hands-on engineering, from the first architecture decision to code in production.

Fullstack platforms

Product engineering across the whole stack, from data model and APIs to the interface, with an architecture your team can own and extend.

  • TypeScript
  • Node.js
  • React
  • PostgreSQL

AI integration

LLM features built for real-world reliability, with fallbacks across model providers, and AI-assisted development workflows that measurably speed up delivery.

  • LLMs
  • Agents & tooling
  • AI-assisted development

API design & integration

REST, GraphQL and event-driven interfaces that keep services decoupled and data consistent across systems.

  • GraphQL
  • REST
  • tRPC
  • Kafka

Architecture & DevOps

System design, written architecture decisions, CI/CD and cloud infrastructure. Releases should be boring.

  • GCP
  • AWS
  • Kubernetes
  • GitHub Actions

Legacy modernization

Moving older systems forward without stopping the machine that pays the bills.

  • Monolith replacement
  • Migrations
  • Event-driven

How we work with you

Remote or on site in Stockholm, directly or through your consultant broker. We also take on ongoing maintenance.

  • Hourly
  • Daily
  • Fixed price

Articles

Thinking in public about creative engineering, AI tools, and how teams keep agency while platforms shift.

All articles

Let's talk about your project.

Tell us what you're building and where it hurts. We usually reply within a working day.