Role Overview
Stealth Startup is hiring a internship Open Source Developer [33133]. This is a full-time role in Waterloo. Part of Stealth Startup's Backend hiring, posted 2 weeks ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
About the Role
We are looking for a passionate Open Source Developer who is excited about building in public, contributing to developer ecosystems, and working on cutting-edge technologies such as LLMs, AI tooling, and scalable backend systems. This role is ideal for early-career engineers who love experimenting, learning fast, and shipping meaningful contributions.
Key Responsibilities
- Contribute to and maintain open-source projects (internal and external)
- Build and improve developer tools, APIs, and libraries
- Work with modern AI/ML stacks, including LLM integrations
- Collaborate with the engineering team to design scalable backend systems
- Write clean, well-documented, and testable code
- Engage with the open-source community (issues, PRs, discussions)
- Stay up to date with emerging technologies in AI, Python ecosystems, and developer tooling
Required Skills & Qualifications
- 0–3 years of experience in software development
- Strong proficiency in Python (preferred)
- Familiarity with Git and open-source workflows (PRs, forks, issues)
- Basic understanding of APIs, backend development, and system design
- Exposure to AI/ML concepts or interest in working with LLMs
- Good problem-solving skills and a builder mindset
Nice to Have
- Contributions to open-source projects (GitHub profile is a big plus)
- Experience with frameworks like FastAPI, Django, or Node.js
- Familiarity with tools like Docker, Kubernetes, or cloud platforms
- Experience working with LLM APIs (OpenAI, Hugging Face, etc.)
- Understanding of vector databases or retrieval systems
What We’re Looking For
- Curious, self-driven individuals who enjoy learning by building
- Strong ownership and willingness to take initiative
- Passion for open-source and community-driven development
- Ability to work in a fast-paced, experimental environment
Why Join
- Work on cutting-edge AI and developer tooling
- Opportunity to contribute to impactful open-source projects
- High ownership and learning opportunities from day one
- Collaborative and engineering-first culture
Frequently Asked Questions
How do I apply for the Open Source Developer [33133] position at Stealth Startup?
Use the Apply button above to submit your application directly to Stealth Startup. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Open Source Developer [33133] position at Stealth Startup located?
This position is based in Waterloo. Stealth Startup has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Open Source Developer [33133] at Stealth Startup earn?
Stealth Startup has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Open Source Developer [33133] role at Stealth Startup posted?
This role was posted on June 8, 2026 (15 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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