Resume — Seth Van Grinsven

Summary

Senior fullstack software engineer at Google, working on Display & Video 360. Eleven years building enterprise web applications, real-time marketplace platforms and distributed microservices — most recently high-concurrency bulk operations, globally distributed storage migrations, AI-assisted search interfaces, and autonomous agent tooling for developer workflows. Comfortable owning a feature from schema and RPC design through to the pixel.

Technical skills

Skills

Languages

Dart Java TypeScript JavaScript Kotlin Python C# C++ SQL Protocol Buffers

Frontend

Angular / AngularDart React Web Components Material Design Reactive streams Bundle optimization SASS/SCSS

Backend & distributed

gRPC Microservices Cloud Spanner Dependency injection Multi-tenant RBAC Spring Express GraphQL

Data

Spanner F1 BigQuery Cassandra MySQL DB2 CouchDB Schema & index design

AI & developer tooling

Gemini / Gemini CLI MCP Context engineering Multi-agent orchestration Prompt engineering

Testing & ops

Bazel / Blaze JUnit Karma / Jasmine Selenium Cucumber / JBehave Visual regression GCP · AWS · Azure Terraform Docker

Experience

Employment history

Senior Software Engineer, Fullstack — Google · Ads, Display & Video 360

Jan 2020 – Present

Led multiple top-level platform projects from design through launch, coordinating with stakeholders, external teams and assigned resources. Area expert across several parts of DV360 and the team's primary front-end resource, with projects that opened new revenue streams and reached org-wide impact.
High-throughput bulk operations engine. Designed and delivered a fullstack bulk execution system letting media buyers attach hundreds of curated inventory deals across dozens of campaign line items in parallel, with transactional validation, rate-limited backend RPCs, optimistic UI and telemetry.
AI-assisted marketplace discovery. Led technical delivery of the next-generation media exploration experience, integrating generative-AI search that translates free-form natural language queries into structured inventory targeting criteria.
Distributed storage migration. Migrated core backend storage layers to globally distributed databases (Cloud Spanner / F1), restructuring schema indexes and optimizing read/write DAOs for low-latency queries — with no user disruption.
Cross-exchange publisher platform. Architected a unified administrative and buyer-facing platform normalizing and aggregating inventory from disparate global supply-side ad exchanges into a single directory, backed by Spanner DAOs and gRPC services.
AI developer infrastructure. Built autonomous developer subagents and rules engines automating pre-flight validation, static analysis, code review and remote CI presubmit verification. Authored internal documentation shared across Google and gave org tech talks on context engineering in Gemini CLI; built MCP servers, custom functions and AI contexts the team extends and builds on.
Monorepo modernization. Drove a codebase-wide migration of dozens of monolithic Angular components to isolated structured modules, eliminating circular dependencies, improving tree-shaking and reducing production bundle sizes.
Testing & CI. Standardized PageObject harnesses, mock injectors and visual-regression screenshot pipelines; eliminated flakiness across large integration suites and tuned container resource limits for developer concurrency.
1,770+ merged production changelists to date.

Software Engineer — Google.org · Health Equity Tracker

Jan 2021 – Jun 2021

Requested a six-month loan to a Google-led philanthropic project and led delivery at a startup pace, materializing requirements directly from non-engineering stakeholders.
Built a large data pipeline that ingested public datasets and transformed them into performant, optimized data structures for the public tracker.
Credited on the project's contributor page — healthequitytracker.org/aboutus.

Frontend Software Engineer — Indeed · SMB

Dec 2018 – Dec 2019

Main frontend developer on Jobs Management and owner of the Jobs Management deployable — the heart of the employer experience and one of Indeed's primary revenue generators.
Responsible with the team for reviewing code contributions to the platform from other teams across the company.
Used data analysis to drive A/B experimentation and shipped features targeting revenue and mutual engagement.

Software Engineer — Microsoft · DevDiv, Visual Studio (XAML Modern App Experiences)

Jul 2017 – Dec 2018

Owned the Universal Windows Platform project system: device connection for remote deployment, the full packaging workflow, and project system integrations.
Built and maintained tooling for new features released by the Windows SDK and Windows platform teams.
Prototyped .NET Core 3.0 and Arm64 support.
Led an accessibility pilot program to discover and fix accessibility issues before shipping.
Created a continuous integration pipeline for telemetry dashboards in VSO.
Worked directly with customers to reduce pain points in the development process, using usage data to determine which features mattered and how they were used.

Software Designer — VSP Global

2014 – 2017

One of two front-end designers on a 12-person team distributed across three cities, delivering a multimillion-dollar enterprise application that replaced an out-of-house system costing roughly $500K/year to lease.
Built data tables capable of rendering results from 64 million possible unique input combinations across at least six different output formats.
Moved into a backend role writing Drools rules-engine logic for doctor verbalizations on medical benefit reports — the coverage screen a doctor sees at point of care.
President of the VSP Angular Guild, 2015–2017.

Outside work

Side project — independent game development

Evenings and weekends. Five mobile titles in development across two stacks, the first preparing for Google Play release. Full write-ups on the games page.

Mobile games — sole developer

2026 – Present

Architected each title around a pure, deterministic rules core with zero platform imports and a single mutation funnel, so identical game code runs on Android, iOS and a headless test harness — replays, mid-run saves and golden-trace regression tests fall out of the design rather than being bolted on.
Built a solver-driven content pipeline for Comet Caddy that generates candidate gravity-golf holes, proves each solvable with the game's own physics, measures its aim window to derive par, and assigns a difficulty tier — producing a validated 200-hole, ten-world campaign.
Built headless balance-simulation harnesses that play thousands of runs across seeds and parameter sweeps to surface difficulty cliffs and dominant strategies before release.
Shipped end to end: game design, simulation, rendering, pixel-art generation pipeline, ad and billing integration, store listings and Android/iOS project setup.
Stacks: Kotlin Multiplatform + Compose Multiplatform; TypeScript + Canvas + Capacitor.

Community

Groups & volunteering

Groups & organizations

Gemini CLI internal dogfooder — 2025
Google.org — 2021
Sammamish Parks & Rec Commissioner, City Council — 2019
VSP Angular Guild, President — 2015–2017
Google Developer Group Sacramento — presenter & co-organizer

Volunteering

English conversationalist — Seattle, 2025
Mentor / tutor — Seattle, 2023
Seattle Humane Society — 2019
Girls Who Code, club founder — Redmond Middle School, 2018
TEALS, Intro to CS teacher — Tonasket HS, 2018
Washington Trails Association, backcountry response team — 2018
Sammamish Animal Sanctuary — 2018
Junior Achievement teacher — Folsom Middle School, 2017
Math tutor — Santa Rosa Junior College Math Club

Education

B.A. Computer Science — California State University, Chico

References available on request.