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Olle Marmenlind
Historic photograph of people beside a passenger boat at a landing on Lake Marmen

Marmenlind comes from “Marmen”, the lake in Medelpad, and “lind”, meaning linden tree.

Olle Marmenlind

Final-year Computer Engineering student at KTH with experience in embedded and full-stack engineering, alongside my role as Technical Product Owner at Sevan AB.

Location
Stockholm, Sweden
Current
Technical Product Owner / KTH Computer Engineering
Availability
Internship or thesis project from early 2027
Direction
Backend and systems engineering, performance, infrastructure

Profile

A summary of my engineering experience:

  • Built a full-stack e-commerce monitoring and analytics platform for Motillo, a software consultancy specializing in e-commerce systems with over 35 client storefronts.
  • Wrote C/FreeRTOS embedded firmware and a PC data visualization tool for fiber-optic sensing systems and hardware at Proximion, the global industry leader in FBGs and fiber-optic sensing systems and a Hexatronic Group subsidiary.
  • Lead development of internal tools (sales catalog/pricelist generator, CRM, dashboards) at Sevan. Currently implementing a token-based design system.

Projects I’ve made:

  • I built Token Catalog, a Go crawling pipeline (“Source”), component compiler (“Forge”), and web service that makes Material Design token data available to developers and coding agents through verified, versioned captures. The catalog’s own styling is based on the actual upstream tokens, compiled by Forge.
  • I am also developing Linduistics (WIP), an application for comparing pronunciation and word meanings across five Germanic languages.

Broadly interested in systems engineering and performance-oriented engineering:

  1. System design
  2. Platform and network infrastructure
  3. Performance-oriented backend development
  4. High-speed I/O

Education

Expected June 2027

KTH Royal Institute of Technology

B.Sc. Computer Engineering

Data structures and algorithms, Operating systems, Networking (all OSI-layers, four courses in total), Databases, Network security (graduate level), Microcontrollers (graduate level), Computer architecture/Embedded systems, Distributed systems.

Certifications

Experience

March–June 2026

Motillo AB

Software Engineer — KTH Industry Project

Built a React/TypeScript application and ASP.NET Core backend for monitoring Litium commerce environments, sales metrics, uptime, and system health.

Implemented asynchronous order ingestion with Hangfire and Polly, an Elasticsearch-backed extraction API, and PostgreSQL reporting with historical materialized-view rollups merged with live data. Benchmarked the reporting design using four million simulated orders, reducing representative query time from roughly 330 ms to 20 ms.

View project

October 2025–January 2026

Proximion AB

R&D Software Engineer, University–Industry Project

Built a multithreaded C and FreeRTOS processing pipeline on RISC-V for high-frequency Fiber Bragg grating sensor data. Implemented non-blocking inter-task communication, a deterministic binary protocol between the MCU and PC host, crash-state capture hooks, and a C#/.NET host application.

Created a cross-platform GNU Make build system and self-hosted Linux CI pipeline for reproducible builds, formatting, and release generation.

2022–present

Sevan AB

Technical Product Owner

Worked as a UI/UX designer for ~6 months and then as a project manager for another ~6 months. Later promoted to product owner.

Own the roadmap for B2B and B2C commerce platforms serving more than 200,000 users and 300 business customers. Translated business requirements into more than 400 development tickets, including API schemas and data models, while coordinating internal teams, external partners, and vendors.

Projects

  1. 2026 · Work in progress

    Linduistics (WIP)

    Python / Go / PostgreSQL / React / TypeScript

    A work-in-progress application comparing pronunciation and word meanings across five Germanic languages, with text analysis and an interactive language map.

  2. Captures and verifies Material Design 3 tokens, publishes data for developers and coding agents, and supplies component examples and browser tools for measuring UI motion.

  3. Multi-organization monitoring and analytics platform combining asynchronous order ingestion, PostgreSQL reporting, uptime monitoring, and internal administration tools.

  4. November 2025

    B2B Scan-to-Order

    Kotlin / Android / Firestore / REST

    GitHub (opens in new tab)

    Android proof of concept for barcode-driven B2B ordering, integrating ML Kit scanning with product lookup, order handling, and synchronization.

Writing

View all writing

Technical scope

Languages
C, C++, Java, Go, Python, TypeScript, C#
Systems & Infrastructure
Linux, FreeRTOS, RISC-V, Docker, CI/CD, Microservices, Distributed Systems
Web & Data
React, templ, PostgreSQL, SQLite, Elasticsearch, Spring Boot, ASP.NET Core, REST, ETL/data pipelines, background jobs
Tools & Networking
Git, Bash, PowerShell, GNU Make, TCP/UDP