← perjansson.me

Per Jansson

Curious Software Craftsman

Profile

Hi, I’m Per, a curious software craftsman with 20+ years of turning ambitious ideas into software people love to use. I’m a full-stack developer with a frontend heart: the visuals, the interactions, and the details that make a product feel effortless. That’s where I do my best work.

I’ve built software for everything from in-flight entertainment at 35,000 feet to streaming apps for HBO, airline Wi-Fi platforms, banking systems and mobile apps for Sony. My home turf is React, TypeScript and Node on the web, and Kotlin with Jetpack Compose on Android, on top of a solid Java and native mobile background. I care deeply about frontend architecture and developer experience: codebases that are still a joy to work in long after the first release.

I’m at my best in a team. I love establishing pragmatic agile practices, coaching developers, and creating the conditions where people grow and teams ship. I put AI to work where it makes sense, making teams and workflows more efficient without losing the craft. Whatever the stack, my goal stays the same: software with the right mix of quality, robustness and ease of use, and maximum value for the end-user and the business.

Skills

Languages
Kotlin, TypeScript, HTML, CSS, JavaScript, Java, SASS
Frameworks and libraries
Node, Jetpack Compose, React, Android, Jest, Cypress, Spring Boot, PostgreSQL, Angular, Spring, Hibernate, RabbitMQ, Redux, SQL Server, GraphQL, Styled Components, MongoDB, Material UI, Puppeteer, Next.js, React Native, Expo, gRPC, D3.js, three.js, Framer Motion, PWA, Koa, Cucumber, Redux Saga, jQuery, Google Web Toolkit, JSF, Thymeleaf, Camel, Express, Java EE, MyFaces, EJB3, Materialize, Shale, RichFaces, Seam, Struts
Tools
Figma, Claude Code, GitHub Actions, AWS, Storybook, Miro, Jira, Docker, Maven, Jenkins, SonarQube, Zeplin, Heroku, GCP, Bazel, Lerna, Standard JS, Eclipse, Hudson, Sculptor, ADT, Apache Continuum

Experience

Inflight entertainment (IFE)Cathay Pacific / Panasonic Avionics

Jun 2022 – present · Los Angeles / Hong Kong / Helsinki / Turku

Senior Android developer

Android, Kotlin, Jetpack Compose, GitHub Actions, Figma, Miro, Jira, Claude Code

Artist insights appSony Music

Jan 2022 – Jun 2022 · New York / Turku

Senior Mobile Developer

React Native, Expo, TypeScript, Node, Koa, AWS, D3.js, three.js, Jest, Storybook, Figma

ARC Raiders launch site & player IDEmbark Studios

Aug 2021 – Jan 2022 · Stockholm / Turku / Helsinki

Senior Frontend developer

React, Next.js, TypeScript, HTML, CSS, Node, Framer Motion, Storybook, Cypress, gRPC, GCP, Bazel, Figma

Wi-Fi Connectivity PlatformIAG (International Airlines Group)

Jan 2021 – Aug 2022 · London / Turku

Senior Fullstack developer

Java, Spring Boot, Node, TypeScript, React, HTML, CSS, Jest, Cypress, PostgreSQL, RabbitMQ, Docker, AWS, Zeplin

Wi-Fi Connectivity PortalPanasonic Avionics Corporation

Jan 2020 – Jan 2021 · Los Angeles / Turku

Senior Fullstack developer

React, Redux Saga, JavaScript, HTML, CSS, Material UI, PWA, Node, Storybook, Jest, Cypress, Cucumber, Lerna, Docker

Smart TV appHBO / Warner Media

Jul 2018 – Jan 2020 · New York / Turku

Senior Frontend developer

React, Redux, Styled Components, TypeScript, JavaScript, HTML, CSS, Storybook, Jest, Puppeteer, Node, AWS

Betting websitesKindred Group

Jul 2017 – Jun 2018 · Stockholm

Senior Fullstack developer

React, Redux, Styled Components, JavaScript, HTML, CSS, SASS, Storybook, Jest, Cypress, Node

Digital therapy prototypeMindmend

Dec 2016 – Jan 2017 · Stockholm

Senior Fullstack developer

JavaScript, HTML, CSS, SASS, jQuery, Materialize, Express, Node, Heroku

Insourcing Matchmaking ToolEY (Ernst & Young)

Jul 2016 – Jul 2018 · Stockholm

Senior Fullstack developer

Angular, React, TypeScript, HTML, CSS, SASS, GraphQL, Storybook, Node, MongoDB, Heroku, AWS

Advisory CockpitNordea

Jul 2016 – Jun 2017 · Stockholm

Frontend architect & developer

React, Redux, Material UI, SASS, HTML, CSS, JavaScript, Standard JS, Node, Jest, Storybook, Java, Spring Boot, Jenkins

Admin WebLeadenhancer

Dec 2015 – Mar 2016 · Stockholm

Senior Frontend developer

Angular, JavaScript, HTML, CSS, SASS, Node

Nordic portfolio systemNordea

Aug 2015 – Jun 2016 · Stockholm

Frontend architect & developer

Angular, jQuery, HTML, CSS, JavaScript, SASS, Node, Java, Spring, Hibernate, SQL Server, Maven, Jenkins, SonarQube

Risk CalculatorNordea

Mar 2014 – Sep 2015 · Stockholm

Senior Fullstack developer

Angular, Thymeleaf, HTML, CSS, JavaScript, Java, Spring, Hibernate, SQL Server, Maven, Jenkins, SonarQube

Multi portfolioNordea

Mar 2013 – Mar 2014 · Stockholm

Fullstack developer & Scrum Master

Google Web Toolkit, Java, Spring, Hibernate, SQL Server, Camel, HTML, CSS, JavaScript, Maven, Jenkins, SonarQube

Customized analysis and recommendationNordea

Mar 2012 – Mar 2013 · Stockholm

Fullstack developer

Google Web Toolkit, Java, Spring, Hibernate, SQL Server, HTML, CSS, JavaScript, Maven, Jenkins, SonarQube

Pollen and pharmacy appApoteket

Mar 2011 – Jun 2011 · Stockholm

Android developer

Android, Java, Eclipse, ADT

Portfolio for AdvisorsNordea

Jan 2011 – Mar 2012 · Stockholm

Frontend developer

Google Web Toolkit, Java, Spring, Hibernate, SQL Server, HTML, CSS, JavaScript, Maven, Jenkins, SonarQube

Station finder appStatoil

Dec 2010 – Mar 2011 · Stockholm

Android developer

Android, Java, Eclipse, ADT

Planning and Sorting systemSwedish Postal Service (Postnord)

Jan 2010 – Jan 2011 · Stockholm

Frontend developer

Java EE, EJB3, JSF, RichFaces, Seam, Sculptor, Hibernate, HTML, CSS, JavaScript, Maven, Hudson

Automatic PaymentsLänsförsäkringar Bank

Dec 2008 – Aug 2009 · Stockholm

Technical Project Manager

Java, JSF, Struts, Spring, Hibernate, HTML, CSS, JavaScript, Maven, Hudson

Internet bank proof of conceptSEB (Bank)

Sep 2008 – Dec 2008 · Stockholm

Development Lead

Java, JSF, MyFaces, Spring, Hibernate, HTML, CSS, JavaScript, Maven

New Internet BankLänsförsäkringar Bank

Dec 2006 – Aug 2008 · Stockholm

Frontend developer

Java, JSF, MyFaces, Shale, Spring, Hibernate, HTML, CSS, JavaScript, Maven, Apache Continuum

Writing