Kristoffer Pettersson

Trafikförvaltningen, Region Stockholm [Frontend Developer, Consultant through Kvadrat AB]

Started: Aug 2022 | Present

• Collaborated in the development of the new websites for Sjukreseguiden and Färdtjänst, focusing on user-friendly interfaces and seamless functionality.
• Utilized React for building responsive, dynamic front-end applications, ensuring high performance and accessibility.
• Deployed and managed applications in Docker containers hosted on Azure, with automated deployments through Azure Pipelines.
• Integrated and delivered content dynamically using Contentful (headless CMS), ensuring flexible and scalable content management.
• Implemented WCAG 2.2 standards to ensure web accessibility and compliance, making the websites accessible to all users.
• Collaborated with cross-functional teams to deliver high-quality solutions, following Agile methodologies and best practices.
• Contributed to optimizing the development process and deployment pipeline for enhanced efficiency and reduced time-to-market.

Kvadrat AB [Consultant]

Started: May 2022 | Present

I'm working as a consultant through Kvadrat AB Stockholm and I'm contracted to work with the company Trafikförvaltningen Stockholm.

Semafor IT AB [Founder and CEO]

Started: Mar 2022 | Present

My own company

Handelsbanken [Developer, Consultant through IT-Huset]

Started: Jan 2022 | 1 year and 6 months

• Developed and maintained applications with Angular, TypeScript, HTML5, and CSS (SASS), ensuring high-quality, responsive, and accessible user interfaces.
• Leveraged Bitbucket and Git for efficient source control and collaboration in team-based projects.
• Managed and automated complex data processes within large Excel structures using VB code, enhancing data handling efficiency and reducing manual tasks.

Arbetsförmedlingen [Developer, Consultant through IT-Huset]

Started: Jan 2020 | 2 years

• Proficient in Angular, TypeScript, JavaScript, HTML5, and CSS3 (SASS), with a strong focus on building responsive, accessible, and high-performance user interfaces.
• Experienced in building and integrating custom Angular components into existing websites running on SiteVision, enhancing functionality while maintaining consistent design and usability.
• Skilled with Git for version control, ensuring seamless collaboration and code management across projects.
• Proficient in project tracking and agile workflows using Jira for efficient task management and sprint planning.
• Knowledgeable in deploying and managing applications on Red Hat OpenShift, leveraging container orchestration to enhance scalability and reliability.

SEB [Developer, Consultant through IT-Huset]

Started: Oct 2017 | 2 years and 3 months

• Developed and maintained backend solutions using ASP.NET and ASP.NET MVC, leveraging C# to build secure and scalable applications.
• Integrated Confluent Kafka client for reliable event streaming, facilitating data flow across services.
• Began work with microservices architecture, focusing on services triggered by frontend events to efficiently process and push data into the data lake for real-time analytics.
• Transitioned to a team responsible for managing and enhancing the payments functionality of the bank's website, ensuring secure and efficient transaction processing in alignment with business and compliance standards.
• Collaborated within an agile environment using SAFe for Teams to ensure timely and coordinated development and deployment of features.

Parental leave

Started: Apr 2017 | 7 months

Parental leave

DNB [Web Developer through IT-Huset]

Started: Jan 2017 | 3 months

• Developed a car dealer web application using Angular 2 and TypeScript, creating an intuitive user interface for browsing and managing vehicle listings.
• Implemented key features such as search, filtering, and detailed vehicle views to enhance user experience and ease of navigation.
• Utilized Git for version control, maintaining organized and efficient code management.
• Deployed the application on Heroku for seamless access and testing.
• Completed the assignment successfully prior to transitioning to parental leave.

IT-Huset [Consultant]

Started: Sep 2010 | 12 years and 9 months

I worked as a consultant through IT-Huset and I was contracted to work with the company Nasdaq Omx, DNB, SEB, Arbetsförmedlingen and Handelsbanken.

Nasdaq [System/Web Developer through IT-Huset]

Started: Sep 2009 | 7 years and 6 months

• Full-stack development for both front-end and back-end systems, primarily supporting web properties integral to the organization.
• Skilled in a variety of programming languages, including JavaScript, TypeScript, HTML5, CSS3, .NET (C#), and Java, enabling a flexible approach to diverse development requirements.
• Maintained and enhanced high-traffic websites such as www.nasdaqomxnordic.com (Soon moved to www.nasdaq.com 2024), www.nasdaqomx.com (Now www.nasdaq.com), and the Nasdaq Intranet, ensuring performance and accessibility.
• Developed jQuery-intensive sites within a Java CMS by building dynamic templates using JSP, supporting rich user experiences.
• Created a customizable start page in ASP.NET MVC one summer, allowing visitors to personalize their experience by adding custom widgets.

Brainpeople [Consultant]

Started: Sep 2009 | 1 year

I worked as a consultant through Brainpeople and I was contracted to work with the company Nasdaq Omx.

Instoremedia [System Developer]

Started: May 2009 | 4 months

I relieved the programmers during that time when they had a lot of work. I also introduced them to Silverlight which I recently worked with in my thesis work.