Ilja Herdt

About

I'm a software engineer based in the San Francisco Bay Area. I work at the intersection of data, developer tools, and product, with a focus on building things that are genuinely useful.

By day, I work in Solutions Engineering, helping teams connect their data systems and build integration pipelines. By night, I build iOS apps that scratch my own itch, starting with CalRun, a Caltrain companion app born from my daily commute.

I believe the best tools are the ones that get out of your way. Whether it's a train schedule app that opens in under a second or a data connector that just works, I care about the details that make software feel right.

Background

I have a background in advertising technology, data engineering, and full-stack development. I've worked across startups and enterprise, from building programmatic ad platforms to designing data integration architectures.

Outside of code, I founded Heart Fusion Camp, a Burning Man theme camp centered on interactive LED art installations. We build glowing heart labyrinths, cuddle domes, and audio-reactive light sculptures powered by custom ESP32 firmware. When I'm not on the playa, I'm running, studying, or optimizing things that probably don't need optimizing.

Experience

13+ years in customer-facing technical roles across data infrastructure, ad tech, and developer tools.

Jun 2025 - Present · San Francisco, CA

Enterprise Solutions Architect

Airbyte · Open-source data integration, $180M raised

  • Own technical success for ~25 enterprise accounts, embedding with engineering teams to scope, build, and ship data pipelines.
  • Built custom MCP server integrations, AI agent skills, and operations pipelines that synthesize data from 15+ sources into prioritized action lists.
  • Designed CI/CD architecture for a Fortune 500 customer (Airbyte API + Terraform): automated drift detection, config snapshotting, and workspace migration.
  • Scaled internal tooling with Cursor, Claude, and Devin AI, tripling effective account capacity.

Oct 2023 - May 2025 · San Francisco, CA

Senior Solutions Architect

mParticle · Acquired by Rokt for $300M

  • Architected multi-brand data pipelines (BigQuery, Snowflake) for a $6M ARR enterprise portfolio.
  • Designed custom data quality solutions (AWS Lambda, SQL, Python) for rapid enterprise onboarding.
  • Engineered production-ready partner integrations using API frameworks to close product gaps.

Aug 2019 - Oct 2023 · New York, NY

Solutions Consultant

mParticle

  • Delivered 30+ CDP implementations: SDK integration, data pipeline configuration, event schema design.
  • Consulted across Fintech, Retail, Media, and QSR on data activation across 350+ MarTech platforms.
  • Built reusable automation scripts (Python, Postman), improving team delivery efficiency by 23%.

Mar 2016 - Aug 2019 · New York, NY

Technical Solutions Consultant

Xandr · AppNexus, acquired by AT&T for $2B

  • Drove $1B+ in annual ad spend by optimizing Real-Time Bidding integrations with Criteo and Google Marketing Platform.
  • Built a Bash automation library (400+ functions), increasing team efficiency by 45%.

Aug 2013 - Mar 2016 · London, UK

Product Specialist

AppNexus

  • Primary EMEA escalation contact with 95% client satisfaction. Managed advertising campaigns at scale.

Aug 2012 - Aug 2013 · London, UK

Technical Solutions Engineer

Criteo · IPO 2013

  • Onboarded 500+ mid-market clients, expanding Criteo’s EU customer base by 67%.

Education

2022 - 2024 · Palo Alto, CA

Stanford Continuing Studies

  • AI Bootcamp for Product and Business Managers
  • Statistics for AI, Machine Learning, and Data Science
  • Accelerate Your Startup Idea
  • Building Multi-Sided Platform Marketplaces

2004 - 2012 · Munich, Germany

M.Sc. Computer Science (Dipl. Inf.)

Technical University Munich

Thesis: Mobile Device Security with OS-Level Virtualization (Fraunhofer AISEC)

Side Projects

2026 - Present

Indie Developer

CalRun & FocusRep

Designing and shipping iOS apps with SwiftUI, MapKit, StoreKit 2, and real-time transit data.

2025 - Present

Founder

Heart Fusion Camp

Burning Man theme camp building interactive LED art installations powered by custom ESP32 firmware.

Full details on LinkedIn.

Tech I Use

Languages

SwiftPythonTypeScriptC++

Frameworks

SwiftUIMapKitNext.jsTailwindReact

Tools

XcodeCursorGitDockerGCP

Interests

Data IntegrationiOSEmbeddedAI Agents