Carl Christiansen-image

Carl Christiansen

I'm a Tech Lead and Full Stack Software Engineer based in Stockholm.

I have a long experience in development and consulting, working as a developer and tech lead for 20 years and as a consultant since 2010. I quickly adapt to new environments and technologies.

about-me-image

About me

For the past 10 years I have worked in both formal and informal leading and coaching roles, but still actively contributing to the code. Multiple positions have been fullstack, but mostly backend focused.

  • Location:Stockholm, Sweden
  • Age:44
  • Nationality:Swedish
  • Study:Uppsala University

Education

AWS Certified Solution Architect – Associate

AWSJanuary 2023

Information Technology Engineering

Uppsala UniversityAugust 2000 - August 2005

Work

Full Stack Tech Lead

SAP SignavioSeptember 2023 - December 2024

When joining Signavio I got the opportunity to be one of the first members of a new team. My responsibilities included working closely with the product owner, the initiative lead group and other involved teams to find a path to a successful implementation while also leading the development.

The client was very satisfied with my performance and made sure I was assigned to another team after handing over to a newly employed tech lead.

Senior Backend Developer

TrafikförvaltningenAugust 2021 - September 2023

Handling order management and external payment integrations for public transportation in Stockholm.

Lead Fullstack Developer

TrustlyMars 2019 - August 2021

Maintaining existing bank integrations, integrating new banks into the Trustly infrastructure and developing new services to support Trustly's transition to a more modern platform. Also responsible for coaching developers in the team.

Senior Backend Developer / Interim Tech Lead

KlarnaFebruary 2018 - February 2019

I worked in a small team responsible for a gateway service routing requests for risk assessments. The service had high requirements for availability and response times since risk decisions are a crucial part of Klarna's business model.

Senior Fullstack Developer

Max Matthiessen, Sveriges Television, ComHem, Eniro, SoliditetSeptember 2005 - February 2019

Information about earlier assignments are available in my resume.

Skills

Programming Languages
Java
Kotlin
Javascript
WEB & APIs
REST
GraphQL
OpenAPI
Databases
SQL
PostgreSQL
Flyway / Liquibase
Infrastructure
Kubernetes
AWS
Google Cloud
Frameworks
Spring
Spring Boot
React
QA
JUnit
Kotest
Sonar

Client and Accenture Account leadership have a 100% trust into his work and the way how he is approaching his assignment. He demonstrates high proficiency and acts as a role model for others.

-- Accenture Account Manager

Provided by ReactResume© Copyright 2025 Tim Baker