Muthomi Mate

Software engineer with 9+ years of experience building and operating AI-powered products and large-scale distributed systems at Microsoft. Experienced in backend server-side architecture, API design, system reliability engineering, and productionizing enterprise cloud features. Proven track record leading technical design through 100% worldwide production rollouts, establishing reusable cross-service patterns, and collaborating across engineering, science, and product teams to scale platforms serving millions of daily requests.

Software Engineer II at Microsoft (2021-04 – Present)

• API & System Architecture: Designed the server-side authentication and integration architecture enabling third-party applications to retrieve data from internal substrate search through Microsoft Graph; authored technical specifications, built the first end-to-end integration, and established a reusable enterprise architecture pattern adopted across partner services.
• Distributed Systems & Reliability: Architected SLA and reliability improvements for AI-generated meeting insights, implementing resilient fallback mechanisms across dependent storage and data services that boosted system availability from 86.5% to >99%; owned end-to-end production rollout worldwide.
• AI Infrastructure & Productionization: Spearheaded the technical design and implementation of PDF artifact export for Microsoft 365 Copilot Researcher, driving the feature through 100% worldwide production rollout and expanding the artifact-generation platform into mainline Copilot with ~99% end-to-end generation success.
• AI Quality & Skill Orchestration: Developed AI evaluation pipelines for artifact generation skills, assessing model- and skill-generated outputs for content correctness, visual layout quality, and usability across dynamic enterprise contexts.
• Technical Leadership & DRI: Served as engineering DRI for Smart Captions in Microsoft Teams Search across ranking, relevance, metadata, and ingestion; collaborated cross-functionally with Search, Science, PM, and Platform teams to deliver an experience flighted to 100% worldwide.
• Global Scale & Compliance: Led engineering production rollout and deployment iterations for Smart Replies across high-compliance GCC, GCC High, and DoD sovereign clouds, ensuring stability across production environments handling ~6M daily requests.
• Distributed Workflows & Auth: Debugged and optimized complex distributed workflows across Working Set, ODSP/Files, Microsoft Graph, and EntityServe using AAD, protected forwarded tokens, app tokens, and downstream authorization flows.

Project Lead Developer at Sovtech (2020-11 – 2021-04)

• Led technical delivery, system architecture, and API planning for client projects using Node.js, GraphQL, React, and AWS; authored technical design documentation and led team demonstrations.

Senior Software Engineer at Codeshares (2020-06 – 2020-12)

• Designed application architectures and automated CI/CD deployment pipelines using Node.js, React, AWS, and GCP.

Software Engineer at Kuja Kuja (2019-07 – 2020-07)

• Engineered web applications and data-syndication pipelines using BigQuery and Google Cloud Build; mentored junior developers on code quality and server-side testing.

Software Engineer / Technical Team Lead at Andela (2017 – 2020)

• Built web applications and REST APIs using Node.js and React; integrated third-party systems (Greenhouse, Salesforce, BambooHR) and served as Technical Team Lead for developer cohorts.

BSc in Information Technology – Multimedia University of Kenya (2013 – 2017)