# Eli Schlenker

> Senior Software Engineer

Location: San Francisco, California, United States
Profile: https://flows.cv/elischlenker

I'm a senior software engineer who loves turning messy, ambiguous problems into clean, impactful solutions. At Honeycomb, I've spent the last few years doing everything from running activation experiments on the Growth team to solving major competitive feature gaps by 3Xing our data visualization capabilities. I work best at the intersection of technical depth and product thinking.

## Work Experience
### Senior Software Engineer @ Honeycomb.io
Jan 2022 – Jan 2026
Full-stack senior engineer across the Growth and Explore teams, working at the intersection of technical architecture, product experimentation, and cross-functional delivery.

- Architected a backwards-compatible system to support multiple visualization types per query, 3x-ing available data visualizations and reducing a top competitive feature gap.
- Led an engineering org-wide migration to React 18, managing scope and delivery across all engineering teams, reporting directly to the director of engineering.
- Delivered the highest-ranked R&D priority for H1 2025 ahead of schedule through rapid prototyping and data-informed trade-off decisions.
- As a founding Growth team member, ran cross-functional experiments that improved new user activation by over 30% in six months, including A/B tests targeting onboarding conversion bottlenecks.

### Software Engineer @ F5
Jan 2018 – Jan 2022 | San Jose, California
Software engineer on the web security platform at Shape Security (acquired by F5), progressing from UI engineering to owning significant technical contributions in core product performance and security research.

- Co-invented a patented method for preventing web-skimming attacks (US 20210406370A1) that embeds instrumentation in pages, analyzes script execution against historical behavior, and triggers automated defenses against malicious code.
- Developed a novel patented technique (EP 4456484A1) using partially-encrypted interstitial pages for telemetry collection and access validation, improving performance of a core product offering by at least 15%.

### Software Engineer II @ Intuit
Jan 2017 – Jan 2018 | Mountain View
As a UI Infrastructure Engineer, working on a React components library and its JavaScript build system, I decreased our team’s build times by 20% and enabled headless, containerized testing using Webpack, Docker, and CircleCI.
I expanded the functionality and quality of our React components library by building new components, and by feature-building and bug fixing the existing components.

### Software Engineer I @ Intuit
Jan 2016 – Jan 2017 | Mountain View, CA
As a member of the UI Infrastructure team, I helped develop a components library for use in Quickbooks Online, which increases developer productivity and product quality through code reuse and standardization/tooling.

### Software Engineering Intern @ Intuit
Jan 2015 – Jan 2015 | Mountain View
As a software engineering intern, I learned front-end and web component development in order to build a component to visualize financial data for small businesses running on Quickbooks Online, with a focus on accessibility quality through thorough testing.

### Research Assistant @ Human Computer Interactions Lab
Jan 2014 – Jan 2014 | Wellesley College
Used Javascript and D3.js to visualize personal genomic testing results, so as to make them more accessible to non-experts. Conducted large-scale user testing via Amazon Mechanical Turk to evaluate the efficacy of our visualizations. This project is a collaboration with the Harvard Medical School's Personal Genomes Project.

### Tutor for Data Structures (CS 230) @ Computer Science Department
Jan 2014 – Jan 2014 | Wellesley College
Worked with Computer Science Professors to provide outside tutoring to students through weekly help rooms. Graded problem sets (Java) and created written reports about common errors seen from each problem set.


## Education
### Bachelor of Arts (B.A.) in Computer Science
Wellesley College
Jan 2012 – Jan 2016


## Contact & Social
- LinkedIn: https://linkedin.com/in/elimschlenker

---
Source: https://flows.cv/elischlenker
JSON Resume: https://flows.cv/elischlenker/resume.json
Last updated: 2026-03-22