Open to opportunities

Oskar User

@oskaruser

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Full-stack software engineer with 8 years of experience.

Sweden

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What I'm looking for

I am looking for a collaborative environment that values innovation and offers opportunities for growth.

I am a full-stack software engineer with 8 years of experience in building scalable web and mobile applications across various domains, including finance, e-commerce, and AR/VR. My expertise lies in JavaScript frameworks such as React, Angular, and Node.js, as well as Python and cloud platforms like AWS and Firebase. I have a proven track record of increasing user engagement and boosting client revenue through high-performance, maintainable solutions.

Throughout my career, I have successfully developed and optimized applications that have significantly improved user experiences and operational efficiencies. For instance, I built an airline service system that boosted customer revenue by 122.3% and refactored a React Native codebase to enhance stability and performance by 40%. My commitment to quality-first, agile development practices drives my passion for delivering impactful software solutions.

Experience

Work history, roles, and key accomplishments

Current

Full-stack Engineer

Current

VISMA SPCS AB

Sep 2020 - Present (4 years 9 months)

Built an admin platform from scratch for managing database entities and users using React, Node.js, and Mongoose. Boosted customer's yearly revenue by 122.3% by building an effective airline service system with an optimized Node.js backend and a Next.js frontend.

React Node Mongoose Next.js WebGL React 360 React Native Python Django Angular AWS Google Cloud Vision API Koa

Full-stack Developer

Forte Group

Sep 2019 - Present (5 years 9 months)

Developed various websites and web applications, including social network, music, e-commerce, delivery, taxi service, and dating platforms. Increased customer's sales rate from 3% to 63% by smartly designing large databases with MongoDB for informed inventory decisions.

React AWS Lambda MongoDB Angular TypeScript HTML CSS SASS React Native Express Okta JWT BigQuery

Front-end Developer

Symbio

Feb 2017 - Present (8 years 4 months)

Worked on client-side optimization, implementing fast JavaScript algorithms to improve performance and creating a multi-platform-supporting interface. Developed an e-commerce website for a local fashion retailer and a photo/video contest web app for a US startup.

JavaScript Debugging HTML CSS Responsive Design

Education

Degrees, certifications, and relevant coursework

Uppsala University

Bachelor's Degree, Computer Science

Built from scratch admin platform for managing platform's database entities and users using React, Node.js, and Mongoose. Boosted customer's yearly revenue by 122.3% as the result of building effective airline service system with optimized backend (Node.js) that is easy to manage cash flow and frontend (Next.js) that is easy to navigate. Built archi supporting webapp by combining Three.js and WebG