Software Engineer II, Fellow Development
$190k - $210kHandshake
Job Description
Job Description
About Handshake
Handshake was founded on a simple belief that everyone deserves a path to a great career, regardless of where they went to school or who they know. Today, we power 25 million job seekers, 1 million+ employers, and 1,600 educational institutions.
In 2025, we started Handshake AI and built the fastest-growing AI data business in history. We work directly with frontier AI lab researchers to create evaluations, publish benchmarks, and push the boundary of data. We’ve grown from $0 to ~$1B run rate and pay ~$60M to over 30K individuals every month.
Why join Handshake now:Shape how every career evolves in the AI economy, at global scale, with impact your friends, family and peers can see and feel
Partner hand-in-hand with world-class AI labs, Fortune 500 partners and the world’s top educational institutions
Work together with engineers, scientists, operators, and more from Palantir, Meta, Scale AI, and former YC founders
Build a massive, fast-growing business with billions in revenue
Human data is the core infrastructure to AI advancement. Frontier AI labs currently improve model capabilities with various data-intensive post-training techniques. We believe that data spend for AI training will increase by 3-5x in the next few years and continue for much longer as models take on new domains. Handshake AI supports all of the frontier AI labs, working on their most complex data at the largest scale.
About the RoleAs a Software Engineer II on Fellow Development, you’ll build the learning, feedback, and community systems that help Handshake AI’s network of AI trainers do their best work. You'll own features end-to-end, drive technical design, and ship tools that directly shape how tens of thousands of people train and evaluate AI models.
This role rewards engineers who are curious about the problem, not just the code. You'll work closely with PMs, operators, and the L&T team to understand what makes a great fellow experience, translate that into reliable, scalable systems, and own the outcome from first line of code to launch.
Location: San Francisco, CA | 5 days/week in-office
Own features end-to-end across frontend and backend, from scoping and technical design through launch and iteration
Build the full-stack systems that power how fellows learn, get feedback, and improve their work
Partner closely with product and design to translate ambiguous requirements into polished, reliable user experiences
Contribute meaningfully to architecture discussions and help establish patterns the team can build on
Write clean, well-tested, maintainable code and actively participate in code reviews
Collaborate across engineering, L&T, and operations to understand how your work lands and iterate based on real usage
Proactively identify and address technical debt, reliability gaps, and performance bottlenecks
3–5 years of professional software engineering experience building full-stack applications
Strong proficiency in TypeScript across frontend and backend surfaces
Hands-on experience with modern web stacks (React, Next.js, GraphQL)
Solid command of relational databases (PostgreSQL) and thoughtful data modeling
Track record of owning features independently and driving them to completion
Strong communicator who collaborates well with product, design, and cross-functional partners
Comfortable navigating ambiguity and making sound tradeoffs in a fast-paced environment
Strong user-facing product instincts — you care as much about the experience as the implementation
Background in edtech, learning platforms, or tools that help people improve at something
Familiarity with workflow orchestration tools like Temporal or async job systems
Handshake delivers benefits that help you feel supported—and thrive at work and in life.
The below benefits are for full-time US employees.
Ownership: Equity in a fast-growing company
Financial Wellness : 401(k) match, competitive compensation, financial coaching
Family Support: Paid parental leave, fertility benefits, parental coaching
Wellbeing: Medical, dental, and vision, mental health support, $500 wellness stipend
Growth: $2,000 learning stipend, ongoing development
Remote & Office: Internet, commuting, and free lunch/gym in our SF office
Time Off: Flexible PTO, 15 holidays + 2 flex days
Connection: Team outings & referral bonuses
Explore our mission, values, and comprehensive US benefits at joinhandshake.com/careers.
Compensation Range: $190K - $210K
$170k - $190k
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