Hey, I'm Tosin! 👋🏽
Software Engineer | Problem-Solver | Seattle, WA
TO

About

I'm a software engineer with a strong foundation in system design and experience building scalable, production-grade applications and services. My work spans mobile development, backend services, and cloud infrastructure, with hands-on experience in real-time data, authentication, subscriptions, monitoring, and artificial intelligence–powered features. I’ve shipped multiple products and features at Microsoft, including Transcript Translations and Audio Descriptions in Microsoft Stream, as well as agentic experiences within Office AI.

In my personal time, I build cross-platform iOS and Android products, integrate LLM APIs, and contribute to open source. I'm motivated by working in professional engineering environments while also advancing Bitcoin technology and adoption through practical, security-focused software.

Work Experience

Microsoft

Microsoft

August 2022 - Pressent
Software Engineer

Key Contributions

  • Former contributor to Office AI, delivering agentic, AI-powered experiences using Microsoft Copilot Studio, enabling customers to automate workflows and interact with intelligent agents at enterprise scale
  • Previously contributed to Microsoft Stream, a flagship enterprise video platform used by hundreds of global organizations and universities, supporting features relied on by millions of monthly active users
  • Contributed to the launch of Audio Descriptions, improving video accessibility for visually impaired users and advancing Microsoft's accessibility commitments across enterprise video content
  • Instrumental in launching Transcript Translations, enabling video transcripts to be translated into 120+ languages, significantly expanding global accessibility and unlocking new enterprise adoption and revenue opportunities for Microsoft Stream
Microsoft

Microsoft

May 2021 - August 2021
Software Engineer Intern

Key Contributions

  • Led a 12-week project to design and implement a filter using FFmpeg's open-source technology, streamlining Azure Cognitive Services for Microsoft Stream's automatic transcription feature
  • Architected an interop layer bridging C++ and C# languages, enabling seamless integration of the FFmpeg filter into the existing C# repository
  • Collaborated closely with senior developers to craft a robust pipeline for the filter application, ensuring efficient and reliable performance throughout the transcription process
  • Incorporated Azure Cognitive Services into the transcription workflow, directly contributing to a ~10% reduction in transcription costs—a significant monetary savings for the company
Microsoft

Microsoft

May 2020 - August 2020
Explore Intern

Key Contributions

  • Collaborated in a team with two fellow interns to develop a student-centric video streaming platform on Microsoft Stream, utilizing TypeScript and React, addressing the need for enhanced online learning during the COVID pandemic
  • Developed key features such as video chaptering, in-video note taking, and interactive quizzes to enhance student engagement and comprehension during video sessions
  • Assumed project management responsibilities, liaising with stakeholders to gather crucial feedback and steering the project direction to align with user requirements
  • Led user-centric product testing by orchestrating surveys and focus groups, ensuring the platform met real-world educational needs; partnered with designers to craft an intuitive UI/UX using Figma

Education

Purdue University

Purdue University

August 2018 - May 2022
Bachelor of Science, Computer Engineering
Lutheran High School North

Lutheran High School North

August 2014 - May 2018
High School Diploma

Skills

System Design
Python
Java
C++
Swift
React
Typescript
Go
C#
SQL
Kotlin
AWS
Docker
LLM APIs
Redis
Git
OAuth/JWT

Resume

GitHub Contributions

Featured Projects

Odyssey - Bitcoin Learning Mobile App

A super minimalist write experience, type with minimalist, no noise and distraction, completely fresh Windows app, with a clean UI and no ads, just pure writing experience.

React Native
Expo
Typescript
Postgres
CSS
Supabase
Sentry
AWS

HRZN - Open Source Bitcoin Wallet

An open source Bitcoin wallet application providing secure, user-friendly Bitcoin storage and transaction capabilities with a focus on privacy and security.

React Native
Expo
Typescript
Postgres
CSS
Supabase
Sentry
AWS

Contact

Welcoming professional opportunities, project-based collaborations, and technical conversations. Please reach out below 👇🏽

© 2026 Tosin Ogunjobi. All rights reserved.

Open source under MIT License and available on GitHub