Siri Lööf

Senior software engineer

An experienced fullstack developer with a focus on quality and building the best possible user experience.
Having worked on many different projects in cross-functional teams, I'm comfortable working in a wide range of languages and frameworks. I'm always open to continue improving my skill set to find a solution that best solves a given problem.

Languages, frameworks and tools

React

TypeScript

Next.js

Node.js

GraphQL

Java

OpenAI

Claude

Cursor

Testing Library

Cypress

Git

AWS

Career History

Software Engineer

SVTi (Contractor via Teris)

Oct 2025 - May 2026. Stockholm, Sweden

Worked fullstack on the systems powering svt.se, with a strong focus on accessibility, availability and building a reliable public service web experience. I contributed across frontend and backend, collaborating closely with product, design and editorial teams, and worked hands-on with AI-driven initiatives to improve workflows and user value. Tech includes React, TypeScript, NodeJS, GraphQL, Figma MCP, Claude Code, Cursor.

Software Engineer

Klarna (Contractor via Teris)

Mar 2023 - June 2024. Stockholm, Sweden

Worked on the new Klarna Cashback initiative within the Klarna app. Built features using React Native and integrated data via Apollo GraphQL. Designed and implemented an event-driven architecture powered by Kafka to enable scalable, low-latency transaction processing and reward tracking. Collaborated with cross-functional teams to ensure high performance, security, and maintainability of systems. Tech includes React Native, Node.js, Express, TypeScript, GraphQL, Kafka.

Software Engineer

Spotify

Dec 2020 - Feb 2023. Stockholm, Sweden

Worked on the web pages of Spotify.com and their underlying systems. I contributed to many critical areas, including system design of microservices, web components and APIs, delivering code on both backend and frontend and collaborating closely with mobile developers, UX and design. Tech includes NextJS, React, Typescript, NodeJS, Java.

Software Engineer

ASSA ABLOY (Contractor via Cygni)

Nov 2019 - Dec 2020 Stockholm, Sweden

Worked as a full-stack developer building a cloud-based solution for the American hotel market. The team works with TDD, favours pair- and mob programming to benefit knowledge sharing, and has a complete Continuous Delivery process in place.

Head JavaScript Instructor

Salt, School of Applied Technology (Contractor via Cygni)

Aug 2019 - Nov 2019 Stockholm, Sweden

The Full Stack JavaScript Developer program at Salt is designed to teach motivated, passionate and creative individuals how to code from scratch. My role as instructor was coaching, guiding and giving feedback to students, as well as creating and maintaining the curriculum. I also gave daily lectures in programming.

Software Engineer

Bonnier News (Contractor via Cygni)

Apr 2019 - Aug 2019 Stockholm, Sweden

Helped build a self-service platform on the web for customers of Bonnier Magazines and Brands. I worked full-stack with JavaScript and took on a leading role in the team by for example introducing mob-programming to increase knowledge sharing and upgrading the front-end stack with tools such as Webpack. I have also contributed to optimizing the team's agile processes and I regularly gave presentations for stakeholders and other teams.

Software Engineer

Com Hem (Contractor via Cygni)

March 2017 - March 2019 Stockholm, Sweden

Building complex internal applications used by thousands of Com Hem customer service- and retail staff. The work was in a fast-pace agile environment in close collaboration with stakeholders and other development teams. As part of my role I also held internal training courses, for example in React and BEM CSS.

Web Engineer

The Unit

Jan 2016 - March 2017 Brighton, UK

The Unit is a digital agency offering UX, design and development services to clients such as esure, Fidelity, Post Office, Coop and Toyota. I worked as a front-end developer on commercial projects in an agile environment.

Volunteer Experience

Programming Coach

Codebar

March 2015 - Feb 2017 Brighton, UK

Codebar is a non-profit initiative where the goal is to enable underrepresented groups in the tech industry (such as women and LGBTQ) to learn programming in a safe and collaborative environment and expand their career opportunities.