Java Web3 Jobs in United States

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Job Position Company Posted Location Salary Tags

Polymarket

New York, NY, United States

$84k - $110k

Albert Bow

New York, NY, United States

$91k - $109k

Crossmint

Miami, FL, United States

$150k - $210k

visa

Austin, TX, United States

$152k - $243k

Crossmint

United States

$150k - $210k

syncreonconsulting

United States

$94k - $156k

Bright Mind Solutions LLC

United States

$90k - $100k

Chainlink Labs

United States

$98k - $112k

Alchemy

San Francisco, CA, United States

$300k - $350k

Hatch Pros

United States

$96k - $105k

visa

Austin, TX, United States

$83k - $89k

Chainalysis

New York, NY, United States

$180k - $205k

visa

United States

$83k - $89k

Alchemy

San Francisco, CA, United States

$240k - $330k

Binance

United States

Polymarket
$84k - $110k estimated
NY New York United States
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Mission

Act as the technical bridge between Polymarket’s exchange and its institutional counterparties.

You’ll own the integrations that connect FCMs, liquidity providers, and ISVs to Polymarket’s regulated systems—helping partners go from sandbox to production while guaranteeing performance, reliability, and compliance.

What You’ll Do

  • Integration Engineering – Build, test, and deploy FIX / REST / WebSocket integrations for institutional participants.

  • Partner Enablement – Work directly with engineers at FCMs, LPs, and ISVs to guide them through certification and onboarding.

  • Performance Optimization – Benchmark and tune order routing, latency, and throughput between client systems and Polymarket APIs.

  • Testing & Certification – Develop automated certification suites for connectivity and data-feed validation.

  • Support & Troubleshooting – Provide Tier-2/3 technical support for institutional clients; diagnose issues spanning APIs, network, and clearing workflows.

  • Documentation – Write and maintain developer guides, integration docs, and runbooks used by external partners.

  • Feedback Loop – Capture partner feedback and channel it to Engineering and Markets for product improvement.

  • Compliance Collaboration – Work with Compliance and InfoSec to ensure integrations meet access-control, data-handling, and system-safeguard standards.

Who You Are

  • 5–8 years as a software engineer or integration engineer in trading, exchange, or financial-infrastructure environments.

  • Strong in Python, Go, or Java; capable of debugging network protocols and APIs.

  • Deep familiarity with FIX, REST, and WebSocket protocols.

  • Experience supporting institutional clients or market makers in production environments.

  • Clear communicator who can translate between engineering and business language.

  • Excited by external-facing technical work and comfortable with responsibility for partner success.

  • Knowledge of CFTC or SEC access and security requirements a plus.

Why This Role

You’ll sit at the frontline of Polymarket’s institutional expansion—owning the technical experience of every professional participant who connects to the exchange.

If you like solving real client problems with deep technical rigor and seeing integrations go live in production, this role offers immediate impact and visibility.

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