Jon
Wahlström.
// Fullstack developer
About
Jon is a solution-oriented web developer with a strong focus on frontend development. He has worked on both customer facing and back-office products, helping create effective and reliable solutions. Passionate about clean, efficient code and intuitive user experiences, Jon thrives on solving complex problems and exploring new technologies. He also has a background in game development and co-founded Tarhead Studio.
Competence
Frontend, 7 yrs
ReactJS, NextJS, Redux, Styled Components, Vanilla Extract, GraphQL, tRPC, ExpressJS, Webpack
Backend, 7 yrs
NodeJS, Entity Framework, WCF, MS SQL Server
Game development , 3 yrs
Unity3D, Coherent UI, Steamworks, C#
Testing, 5 yrs
TDD, Jest, Enzyme
Assignments
Twine
Fullstack developer
,
March 2025 - Ongoing
Development and maintenance of Twine’s iPaaS platform.
Contributed to the migration of an existing web solution in NextJS to Phoenix LiveView
Implemented API-integrations between Twine and other systems
Implemented a configurable CSV/XLSX integration including backend and frontend
Methods and tools
React, Typescript, NextJS, Elixir, Phoenix, Tailwind CSS
Twine
Fullstack developer
March 2025 - Ongoing
Development and maintenance of Twine’s iPaaS platform.
Contributed to the migration of an existing web solution in NextJS to Phoenix LiveView
Implemented API-integrations between Twine and other systems
Implemented a configurable CSV/XLSX integration including backend and frontend
Methods and tools
React, Typescript, NextJS, Elixir, Phoenix, Tailwind CSS
Twine
Fullstack developer
,
March 2025 - Ongoing
Development and maintenance of Twine’s iPaaS platform.
Contributed to the migration of an existing web solution in NextJS to Phoenix LiveView
Implemented API-integrations between Twine and other systems
Implemented a configurable CSV/XLSX integration including backend and frontend
Methods and tools
React, Typescript, NextJS, Elixir, Phoenix, Tailwind CSS
Tele2
Fullstack developer
,
September 2022 - September 2024
Development and maintenance of Tele2 and Comviq e-commerce sites, as well as development of a new frontend as part of a modernization project. Primary responsibilities involved implementing a new checkout flow with NextJS. As the project progressed, shared responsibility was taken in migrating the system to micro frontends with web components utilising established toolsets, as well as implementation of a Backend for Frontend (BFF) using NodeJS.
Methods and tools
React, Typescript, Nx, Lerna, NextJS, Web Components, Styled Components, Vanilla Extract, Storybook, OpenAPI, ExpressJS, tRPC, GraphQL, Redux, Contentful, Kibana, Azure Pipelines, Jira, Jest
Tele2
Fullstack developer
September 2022 - September 2024
Development and maintenance of Tele2 and Comviq e-commerce sites, as well as development of a new frontend as part of a modernization project. Primary responsibilities involved implementing a new checkout flow with NextJS. As the project progressed, shared responsibility was taken in migrating the system to micro frontends with web components utilising established toolsets, as well as implementation of a Backend for Frontend (BFF) using NodeJS.
Methods and tools
React, Typescript, Nx, Lerna, NextJS, Web Components, Styled Components, Vanilla Extract, Storybook, OpenAPI, ExpressJS, tRPC, GraphQL, Redux, Contentful, Kibana, Azure Pipelines, Jira, Jest
Tele2
Fullstack developer
,
September 2022 - September 2024
Development and maintenance of Tele2 and Comviq e-commerce sites, as well as development of a new frontend as part of a modernization project. Primary responsibilities involved implementing a new checkout flow with NextJS. As the project progressed, shared responsibility was taken in migrating the system to micro frontends with web components utilising established toolsets, as well as implementation of a Backend for Frontend (BFF) using NodeJS.
Methods and tools
React, Typescript, Nx, Lerna, NextJS, Web Components, Styled Components, Vanilla Extract, Storybook, OpenAPI, ExpressJS, tRPC, GraphQL, Redux, Contentful, Kibana, Azure Pipelines, Jira, Jest
Reg & Tech Solutions AB
Fullstack developer
,
January 2022 - September 2022
Continuation on the project from the previous time at Reg & Tech in 2021.
Methods and tools
React, Javascript/Typescript, Nx, Create React App, Styled Components, SWR, OpenAPI, React Testing Library, Storybook
Reg & Tech Solutions AB
Fullstack developer
January 2022 - September 2022
Continuation on the project from the previous time at Reg & Tech in 2021.
Methods and tools
React, Javascript/Typescript, Nx, Create React App, Styled Components, SWR, OpenAPI, React Testing Library, Storybook
Reg & Tech Solutions AB
Fullstack developer
,
January 2022 - September 2022
Continuation on the project from the previous time at Reg & Tech in 2021.
Methods and tools
React, Javascript/Typescript, Nx, Create React App, Styled Components, SWR, OpenAPI, React Testing Library, Storybook
Nobia AB
Fullstack developer
,
August 2021 - December 2021
Development and maintenance of My Project & Designer Sales Tool. A product for seamless communication for progress/process between the customer and staff member whilst planning for a new kitchen.
Methods and tools
React, Javascript, Create React App, Styled Components, GraphQL, Octopus Deploy, C#
Nobia AB
Fullstack developer
August 2021 - December 2021
Development and maintenance of My Project & Designer Sales Tool. A product for seamless communication for progress/process between the customer and staff member whilst planning for a new kitchen.
Methods and tools
React, Javascript, Create React App, Styled Components, GraphQL, Octopus Deploy, C#
Nobia AB
Fullstack developer
,
August 2021 - December 2021
Development and maintenance of My Project & Designer Sales Tool. A product for seamless communication for progress/process between the customer and staff member whilst planning for a new kitchen.
Methods and tools
React, Javascript, Create React App, Styled Components, GraphQL, Octopus Deploy, C#
Reg & Tech Solutions AB
Frontend developer
,
October 2019 - August 2021
Green-field development of new monitoring tools for financial institutions in the private sector, including one for regulatory reporting and another one for active management of outsourcing arrangements in accordance with EBA (European Banking Authority).
Methods and tools
React, Javascript/Typescript, Nx, Create React App, Styled Components, SWR, OpenAPI, React Testing Library, Storybook
Reg & Tech Solutions AB
Frontend developer
October 2019 - August 2021
Green-field development of new monitoring tools for financial institutions in the private sector, including one for regulatory reporting and another one for active management of outsourcing arrangements in accordance with EBA (European Banking Authority).
Methods and tools
React, Javascript/Typescript, Nx, Create React App, Styled Components, SWR, OpenAPI, React Testing Library, Storybook
Reg & Tech Solutions AB
Frontend developer
,
October 2019 - August 2021
Green-field development of new monitoring tools for financial institutions in the private sector, including one for regulatory reporting and another one for active management of outsourcing arrangements in accordance with EBA (European Banking Authority).
Methods and tools
React, Javascript/Typescript, Nx, Create React App, Styled Components, SWR, OpenAPI, React Testing Library, Storybook
Hi3G Access
Frontend developer
,
January 2019 - September 2019
Development of a new frontend platform with focus on the support pages. Was implemented as an SPA using React, GraphQL and Contentful.
Methods and tools
React, Javascript, Lerna, Styled Components, GraphQL, Contentful, Jira
Hi3G Access
Frontend developer
January 2019 - September 2019
Development of a new frontend platform with focus on the support pages. Was implemented as an SPA using React, GraphQL and Contentful.
Methods and tools
React, Javascript, Lerna, Styled Components, GraphQL, Contentful, Jira
Hi3G Access
Frontend developer
,
January 2019 - September 2019
Development of a new frontend platform with focus on the support pages. Was implemented as an SPA using React, GraphQL and Contentful.
Methods and tools
React, Javascript, Lerna, Styled Components, GraphQL, Contentful, Jira
ÅF AB
Frontend developer
,
January 2018 - December 2018
Author of an open source React component library with the purpose of providing a design system for developers to create uniform ÅF web applications.
Methods and tools
React, Javascript, PostCSS, Webpack, Babel, npm
ÅF AB
Frontend developer
January 2018 - December 2018
Author of an open source React component library with the purpose of providing a design system for developers to create uniform ÅF web applications.
Methods and tools
React, Javascript, PostCSS, Webpack, Babel, npm
ÅF AB
Frontend developer
,
January 2018 - December 2018
Author of an open source React component library with the purpose of providing a design system for developers to create uniform ÅF web applications.
Methods and tools
React, Javascript, PostCSS, Webpack, Babel, npm
ÅF AB
Frontend developer
,
October 2017 - December 2018
Maintenance and development of ÅF's internal systems. Among other things, I implemented text translation of news articles with Azure Translator and cache management of profile images with Azure CDN.
Later reassigned as frontend developer with a focus on replacing existing SharePoint 2010 sites to internal.
Methods and tools
React, Javascript, Redux, ASP.NET MVC, ASP.NET Core, WCF, Entity Framework, C#
ÅF AB
Frontend developer
October 2017 - December 2018
Maintenance and development of ÅF's internal systems. Among other things, I implemented text translation of news articles with Azure Translator and cache management of profile images with Azure CDN.
Later reassigned as frontend developer with a focus on replacing existing SharePoint 2010 sites to internal.
Methods and tools
React, Javascript, Redux, ASP.NET MVC, ASP.NET Core, WCF, Entity Framework, C#
ÅF AB
Frontend developer
,
October 2017 - December 2018
Maintenance and development of ÅF's internal systems. Among other things, I implemented text translation of news articles with Azure Translator and cache management of profile images with Azure CDN.
Later reassigned as frontend developer with a focus on replacing existing SharePoint 2010 sites to internal.
Methods and tools
React, Javascript, Redux, ASP.NET MVC, ASP.NET Core, WCF, Entity Framework, C#
Nyskogavägen 5
123 63, Farsta
Sweden
Nyskogavägen 5
123 63, Farsta
Sweden
Nyskogavägen 5
123 63, Farsta
Sweden