Chunkr
Open source API service to parse complex documents
Software Engineer Internship (Summer 2026)
About the role
What You’ll Do
As an Intern, you will contribute directly to our core product and ecosystem:
- Develop and maintain SDKs and internal tools (TypeScript, Python, Rust).
- Enhance our React-based front-end application and user experience.
- Engage with the community via PR’ing Chunkr into other open-source dev tools.
- Build data pipelines for collecting, cleaning, and preparing document data to train CV & specialized small Vision Language Models (VLMs).
- Create technical documentation, usage guides/cookbooks, and blog posts to empower developers.
- Jump into wildfires - tasks like enterprise customer deployment support, or optimizing inference code. Expect curveballs; swing hard.
What We’re Looking For
- Demonstrated ability to ship software, showcased through a portfolio (GitHub, personal projects, deployed applications).
- Proficiency in TypeScript + React, and Python. Rust experience is a significant plus.
- Strong technical writing and communication skills (examples like blogs/sharing your work online highly valued).
- An interest in document intelligence challenges (e.g., layout analysis, table extraction, OCR).
- Self-starters comfortable in a fast-paced, small-team environment. Prior startup or OSS contribution experience is beneficial.
Our Momentum
Processing millions of pages daily for a diverse customer base.
Deployed in production environments ranging from startups to large enterprises.
Our specialized pipeline achieves state-of-the-art performance on key document tasks. You’ll be working at the cutting-edge.
Backed by experienced founders & operators (Y-Combinator, Jack Altman via Alt Capital, Evan Conrad from SF Compute).
Why Intern at Chunkr?
High Impact: Work on core product features with immediate impact in a small, focused team.
Open Source: Contribute to meaningful open-source projects and build your public profile.Your commits live forever!
Mentorship: Learn directly from experienced founders actively involved in engineering.
Compensation: Competitive stipend, benefits, and potential for a full-time opportunity.
About the interview
1. Portfolio & Project Deep Dive (45-60 min)
Show us your work (GitHub, personal site, deployed apps)
Demo one project of your choice; we'll deep-dive into its architecture, challenges, and your code
Ideal project pointers:
- Document pipelines (OCR, layout/table extraction)
- TypeScript/React front-ends, Rust/Python backend/tooling
- In-depth blogs/technical articles
2. Technical Take-Home Exercise (Conditional based on first call)
A practical exercise involving building a small application using the Chunkr API.
Candidates will receive a detailed project brief, necessary resources (including API keys), and initiate a 24-hour completion window upon accepting the challenge via a provided link.
3. Team Fit Conversation (30 min)
Meet the full founding team - this is a final vibe check.
About Chunkr
From papyrus to PDFs, documents have shaped industries and defined how we work - yet this wealth of information is locked within unstructured formats, beyond the reach of modern software.
As the world transitions to an AI-native future, Chunkr is building the essential vision infrastructure for developers to unlock documents for AI. We leverage traditional computer vision, vision-language models, custom tooling, and swathes of last-mile engineering. Our goal is to enable LLMs to interact with documents with the same nuance and understanding as a human!
Founded by three self-taught developers, we value agency, grit, and open source. Chunkr supports teams from seed-stage startups to enterprises in finance, healthcare, gov-tech, manufacturing, e-commerce, and dev-tools - all relying on fast, reliable document intelligence.
Our Momentum
- Processing millions of pages every day for a diverse customer base
- Running in production at both startups and large enterprises
- Backed by Y-Combinator, Alt Capital (Jack Altman + Elaine Dai), and angels like Terrence Rohan (Otherwise fund), Evan Conrad (SF Compute)
Join us to build the go-to document intelligence platform!
Great Perks + Benefits
- Competitive Pay & Equity: Attractive salary and meaningful equity packages
- Health & Wellness: Medical, dental, and vision coverage for you and your family
- Flexible Time Off: Unlimited PTO and paid holidays
- Parental Leave: Generous support when growing your family
- Daily Stipends: Meal and transport allowances
- Real Impact: Own and ship features you believe in
