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Handshake

Associate Software Engineer, RLE

San Francisco, CA · On-site

$135K - $150K/yr

About Handshake Handshake was founded on a simple belief that everyone deserves a path to a great ... About the Role We're hiring an Associate Software Engineer to help build our Reinforcement Learning ...

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    Infographic showing various Software job openings at Handshake in the United States as of August 2026, with employment types broken down into 99% Full Time, and 1% Contract. Highlights an 85% Physical, 1% Hybrid, and 14% Remote job distribution.

    Associate Software Engineer, RLE

    Handshake

    San Francisco, CA • Hybrid

    Full-time

    Medical, Dental, Vision, Retirement, PTO

    Posted 6 days ago

    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

    About Handshake AI

    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 Role

    We're hiring an Associate Software Engineer to help build our Reinforcement Learning Environments (RLE) platform-the systems where frontier AI models learn to complete real-world work.

    This is a hands-on, growth-oriented role where you'll contribute to building core systems, learn quickly from senior engineers, and gain exposure to cutting-edge AI infrastructure.

    Location: San Francisco, CA (in-office, 5 days/week)

    What You'll Do

    • Contribute to building RLE environments and supporting infrastructure

    • Implement features across backend systems and frontend interfaces

    • Work with senior engineers to improve system reliability and performance

    • Help build modular workflow domains (e.g., engineering, finance, legal)

    • Support data pipelines that power model training and evaluation

    What We're Looking For

    • 0-2 years of experience (internships or full-time) in software engineering

    • Familiarity with backend development and APIs

    • Working knowledge of ReactJS and TypeScript

    • Understanding of databases (e.g., PostgreSQL) and basic system design

    • Eagerness to learn and operate in fast-paced environments

    Nice to Have

    • Exposure to cloud platforms (AWS, GCP)

    • Experience with data pipelines or ML-adjacent systems

    • Interest in AI/ML or simulation systems

    What Success Looks Like

    • Ships reliable features that improve RLE functionality

    • Grows into owning small components independently

    • Contributes to faster iteration and better developer velocity

    Perks

    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 coachin

    Wellbeing: Medical, dental, and vision, mental health support, $500 wellness stipend

    Growth: $2,000 learning stipend, ongoing development

    Office: Commuting support, free lunch, and gym in our SF office

    Time Off: Flexible PTO, 15 holidays + 2 flex days

    Connection: Team outings & referral bonuses

    Apply