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Steffen L.

Steffen L.

Software Engineer

Software engineering is my hobby and profession. I have experience with working in small teams and public open-source projects such as webview/webview on GitHub where I am a collaborator. I have created various noteworthy projects: * Tools for modifying proprietary software and file formats though reverse engineering (e.g. Dead Island Save Editor written in C++ with wxWidgets) * Project release/asset management server written in C#/ASP.NET with a Web API that I use in my own projects' CI/CD (Continuous Integration/Deployment) cycle. * Discord bot written in C# with unique spam/scam detection features. * Wireless doorbell system with hardware built around an ESP32 SoC where the firmware is written in C using the native Espressif SDK, a server written in Node.js that can run on a Raspbery Pi, and a mobile app written in Java for Android. I value good development practices with code reviews, automatied testing and deployment, code coverage checks, technical documentation skills, etc. While working for a Norwegian cybersecurity company, I developed and maintained systems for end-to-end-encrypted communication which involved web backends written in Java/Spring and Node.js; frontend written in HTML/JavaScript/CSS; mobile apps written in Java for Android, and in Objective-C for iOS; relational databases and messaging, cloud infrastructure, etc. Those who work with me can expect a responsible and trustworthy business partner.

🇳🇴Tromsø, Norway$45/hr100% JSS4.94 (8)Since Jul 2022

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#356,275 / 412k
🇳🇴Country#320 / 390
Revenue, last 30 days
—

Read daily since Oct 12, under 30 days

Total earnings
$1.5k

Billed in all: $1.6k

World#356,275 / 412k
🇳🇴Country#320 / 390
Per project
$193
Projects, last 6 months
0
World#209,857 / 412k
🇳🇴Country#164 / 390
Projects in all
8
50% fixed50% hourly
World#223,563 / 412k
🇳🇴Country#253 / 390

Earnings, last 30 days

$1.6kNothing earned since Oct 12Billed in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,560$1,580$1,600$1,620Oct 12Oct 26Nov 8

Tracked from Oct 12, 2026.

Skills