# Kalle Wallin Kalle Wallin is a remote worker on Himalayas, Senior Software Engineer at Swedish Post and Telecom Authority, based in Sweden. Source: https://himalayas.app/@kallewallin ```text Systems developer at the Swedish Post and Telecom Authority, maintaining a critical parcel-matching system with open-source libraries. ``` | Detail | Value | | --- | --- | | Availability | Looking for a job | | Location | Sweden | | Authorized to work in | Sweden | | Salary expectations | 1540k+ SEK | | Job categories | Systems Developer, Software Developer, Software Architect, Technical Lead | | Skills | .NET, C#, Azure, SQL, ASP.NET, ASP.NET MVC, Systems Architecture, Systems Integrations, API Design, Database Design, Data Migration, Data Analysis, Testing Automation, Terraform, Docker | | LinkedIn | https://linkedin.com/in/kallewallin | ## What I'm looking for ```text I'm open to freelance consulting work. ``` ## About ```text At the Swedish Post and Telecom Authority, I develop and maintain a critical system that matches undeliverable parcels with recipients seeking their missing deliveries. I use standardized and open-source libraries to help decrease cost and friction while keeping the system maintainable within a government authority’s operating parameters. At Schneider Electric, I work with connected-building and IoT platform data, analyzing it and presenting actionable input to customers as part of a global team. Across my work, I’ve contributed to web applications, system integrations, and development practices in many organizations, and I’ve mentored developers and supported learning through presentations and technical interviews. ``` ## Experience ### Senior Software Engineer (current) Swedish Post and Telecom Authority. Jan 2026 - Present ```text Development and maintenance of a critical system that matches undeliverable parcels to recipients requesting their missing deliveries, using standardized and open source libraries to decrease cost and friction while keeping maintainability high - all within the operating parameters of a government authority. ``` ### Software Developer (current) [Schneider Electric](https://himalayas.app/companies/schneider-electric). Apr 2024 - Present ```text Working with data from connected buildings and IoT platforms, running data analysis and presenting actionable input to customers, I have been part of a global team utilizing Azure, SQL, .Net, Angular, TypeScript, PlayWright, test containers and a myriad of other technologies - including AI tools like Claude and GH Copilot. With gated deploys occurring several times per day, intense QA work and lot ``` ### Software Specialist (current) Greenfield Ventures. Mar 2024 - Present ```text Worked as Software Specialist at Greenfield Ventures. ``` ### Systems Developer, Music Producer (current) ComposiTech AB. Mar 2024 - Present ```text Worked as Systems Developer, Music Producer at ComposiTech AB. ``` ### .Net Developer [Alfa Laval](https://himalayas.app/companies/alfa-laval). Feb 2020 - Mar 2024 ```text Working towards the Digital Vision of Alfa Laval using .Net, C#, SQL, Azure Devops, Azure Pipelines, Event Grid, Docker, ReactJS, Terraform and a very talented team. My focus here is mainly on .Net development (Core, but also some Framework), but also includes databases, data migration, IAC, Azure Devops, test automation, API design, systems integration, documentation, systems architecture, featu ``` ### Software Ninja tretton37 AB. Jan 2013 - Mar 2024 ```text Apart from consulting assignments I have held many a technical interview, mentored junior developers (was head of Apprentice Program for a while) and held a few presentations both internal and for clients. Part of a forward thinking company with ambitions to change what IT consultants are and how they work - with a heavy focus on learning and sharing of knowledge. Many, many talented and friendl ``` Skills: Mentorship, Frontend-Development, Backend-Web-Development, Open-Source-Software ### Technical Initiator / Co-Owner MayWePlay. Jan 2013 - Oct 2020 ```text Part of the initial group that started this service aimed to connect music teachers with students. I weighed options, pointed in directions, set up test and staging environments and built prototypes, estimated time and costs and oversaw the development of the service. ``` Skills: Mentorship, Frontend-Development, Backend-Web-Development, Open-Source-Software ### Technical Lead Modity Energy Trading AB. Nov 2018 - Feb 2020 ```text Tech Lead for three projects: A public web site; A customer portal with several integrations to other systems for energy data, weather data, pricing and prognosis data, buildings and energy consumption etc; And finally an internal tool used by many people in their organization. These were built and maintained by different teams and I worked closely with the project manager and Modity with budget ``` Skills: C#, Azure, Frontend-Development, Backend-Web-Development, NodeJS, Terraform, CMS, Open-Source-Software ### Senior Software Developer Verisure Securitas Direct. Apr 2017 - Jul 2018 ```text Concepts and eco systems. A mostly solo mission, but sometimes as a team of two. We explored new concepts, did prototypes in hardware and software. This required communication and collaboration with many parts of the organization, and a lot of our work was presented to management groups to evaluate future directions. We did everything from server/container setup and scripting via front-end develop ``` Skills: Frontend-Development, Backend-Web-Development, Prototyping, Open-Source-Software ### Full stack web developer Avensia. May 2016 - Oct 2016 ```text Lyko - winner of best nordic web site, and E-commerce site of the year. E-commerce with EpiServer, ASP.NET MVC, React.Js, Redux, TypeScript and Webpack. Award: https://goo.gl/u3h1Bj Web: https://www.lyko.se ``` Skills: Frontend-Development, Backend-Web-Development, Open-Source-Software ### .Net Developer/Team Lead Securitas Sverige AB. Sep 2014 - May 2016 ```text New development, upgrades and maintenance of web applications for business use (finance, HR, project management, inventory and stock taking). Mentoring and systems architecture. The projects contain more details. ``` Skills: Mentorship, Frontend-Development, Backend-Web-Development, Open-Source-Software ### Web Developer [Sony Mobile Communications](https://himalayas.app/companies/sony-com). Nov 2013 - Mar 2014 ```text Web development and coaching in web technologies and javascript frameworks. HTML5, CSS3, AngularJS, KnockoutJS, node.js, grunt, jQuery, Git, Gitlab, Scrum. ``` Skills: Mentorship, Frontend-Development, Open-Source-Software ### Systems Developer Kodexe. Jun 2009 - Jan 2013 ```text Agile development of web sites, e-commerce, mobile apps and CMS systems. C#, ASP.NET MVC, LINQ, SQL, Entity Framework, Sharepoint, Sitecore, EPiServer, NopCommerce, Umbraco, Windows Azure, Android, iOS, MonoDevelop, Scrum ``` Skills: Mentorship, Frontend-Development, Backend-Web-Development, Open-Source-Software ### Systems Developer (.NET) Online i Lund. Jan 2009 - Jun 2009 ```text Sole developer on migration from VB6 to .Net (C#) and restructuring of the automatic dialing and sales support application used by the telemarketers in-house. C#, Windows, WPF, .NET, SQL Server, VB6, COM+, Team Foundation Server ``` Skills: Frontend-Development, Backend-Web-Development, Open-Source-Software ### Consultant Web Developer Orthogon. Jan 2007 - Jan 2009 ```text During my studies in informatics I did part time work here, ranging from Asp to PHP, from travel booking sites to recruiting agencies. This was in a small consulting firm that had varying assignments, but most were web-related. .NET, ASP.NET, Classic ASP, PHP, MySQL, HTML, Javascript, Access Database ``` Skills: Frontend-Development, Backend-Web-Development, Open-Source-Software ### Social Insurance Agency Officer Försäkringskassan. May 2005 - Dec 2007 ```text After administering dental funds for the elderly for a while, my responsibilities quickly increased and I constructed and maintained statistics applications and tools for measuring productivity, as well as a knowledge base-system for regulations and practices. Also user support. Part-time job during university studies. MS Excel, VBA ``` ### Assistant Sound Engineer Berno Studio. Jan 2004 - Jan 2005 ```text During the time I worked as an audio engineer in this studio I played a rather significant role in migrating their recording base from an analog system to digital tools. Using Pro Tools and an advanced set up combining the best of analog recording tools, A/D and D/A conversion, and digital storage and editing, the studio became more cost efficient and less reliant on old machinery, while maintaini ``` ### Systems Developer Online Telemarketing. Oct 1999 - Dec 2002 ```text I was involved in green field development of various kinds of in-house systems for use in and around telemarketing. Automated dialing, salary calculation and automated printing via PDF, membership and subscriber systems, customer databases, stock and warehouse management systems, e-commerce, OCR scanning, order processing, large scale address label printing, server maintenance, user support, insta ``` Skills: Frontend-Development, Open-Source-Software ### Web Developer EyeCom. Jan 1999 - Jan 1999 ```text Web development using ASP, COM+ and SQL Server. Building, repairing and selling computers. ``` Skills: Frontend-Development, Backend-Web-Development, Open-Source-Software ### Kontorist / Office worker Region Skåne. Jan 1996 - Jan 1998 ```text Part time while I was in school I worked as an office helper at a few different places in the psychiatric sector. When I was not sorting papers, typing memos or calculating statistics I helped develop some applications that were used for years afterwards for calculating self-assessment scores, analyzing statistics and administrating the massive archives of this subset of the healthcare administrat ``` ## Education ### Microsoft MCSD: Web Applications ```text May 2015 · Expired May 2017 ``` ### Microsoft MCSD: App Builder ```text May 2015 ``` ### Microsoft Developing ASP.NET MVC Web Applications ```text Apr 2015 ``` ### Microsoft Developing Microsoft Azure and Web Services ```text May 2015 ``` ### Microsoft Programming in HTML5 with JavaScript and CSS3 (Microsoft Specialist) ```text Sep 2013 ``` ### Microsoft MCPS: Microsoft Certified Professional ```text Sep 2013 ``` ### Microsoft MCTS: Windows Application Development .Net 4 ```text May 2011 ``` ### Microsoft MCTS SQL Server 2008: Database Development ```text Nov 2010 ``` ### Sitecore A/S Denmark Sitecore Web Site .Net Developer ```text Jan 2010 ``` ### Lund University Bachelor, Informatics. 2007 - 2009 ### Komvux Computer Science. 1999 - 2000 ```text Database management, Web design, Psychology, Programming Visual Basic ``` ### Vipeholms Gymnasieskola 1995 - 1998 ### Cambridge ESOL Certificate in Advanced English ```text Jun 1998 ``` ## Tech stack - Microsoft Azure - GitLab - Azure Pipelines - MySQL - Microsoft SQL Server - nopCommerce - Node.js - .NET - Terraform - Azure DevOps - React - jQuery - AngularJS - Webpack - JavaScript - PHP - C# - ASP.NET - C++ - Visual Basic - WCF - Linux - iOS - Episerver - Umbraco - Microsoft Excel - Redux - TypeScript - Git - Docker - SQL - Playwright - GitHub Copilot - Testcontainers - Android - ASP.NET MVC - Claude - Azure - Angular - HTML - CSS3 To contact Kalle, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire). ## People also viewed - [Alfredo Capasso](https://himalayas.app/@alfredocapasso): Fullstack Developer, Lolo Company - [Deni Persson](https://himalayas.app/@denipersson): Full Stack Developer, Swecon Anläggningsmaskiner AB - [Shahin F](https://himalayas.app/@shahinf): AI Engineer, Paligo - [Jonathan Ström](https://himalayas.app/@jonathanstrm): Software Developer, HSB - [Tobias Berntsson](https://himalayas.app/@tobiasberntsson1): Programming Assistant and Developer, WeTeachIT - [Marcus Brorsson](https://himalayas.app/@marcusbrorsson): Mjukvaruutvecklare och IT administratör, Atea Sverige - [Kimmo Liikaluoma](https://himalayas.app/@viell): Consultant (on call, intermittent), O & A Data AB - [Adnan Rruka](https://himalayas.app/@adnanrruka): Systementwickler, Advacy AB - [Robert Thorin](https://himalayas.app/@robertthorin): Team Lead / Product owner, MCASweden - [Alan Habib Dalo](https://himalayas.app/@alanhabibdalo): Fullstack Developer, ICA Sverige AB