Senior Backend Engineer, Payments
Polymarket
Senior Backend Engineer, Payments at Polymarket is a full time role based in New York, NY, United States. It was published on 24 July 2026 and was open at last check.
| Role | Senior Backend Engineer, Payments |
|---|---|
| Company | Polymarket |
| Location | New York, NY, United States |
| Employment type | Full Time |
| Published | 24 July 2026 |
| Status | Open at last check |
About Polymarket
Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized “house,” Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future.
We’re growing fast: both in volume ($21B traded in 2025) and in adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media, powered by fast, reliable, and deeply technical market infrastructure.
About the role
Polymarket is looking for a senior backend engineer to build and scale the payments infrastructure that powers deposits, withdrawals, and money movement across the platform.
This role sits at the intersection of engineering and regulated financial operations, and requires the judgment to move fast without compromising correctness or auditability. You’ll be a high-ownership individual contributor working closely with Product, Compliance, and Design.
What you’ll do
- Build payments infrastructure: Design and lead migrations from legacy or monolithic systems to reliable, distributed payments services (Go, gRPC, DynamoDB/MySQL) with no disruption to production money movement.
- Integrate with financial rails: Build and maintain integrations with payment processors, banking rails, and card networks to support deposits, withdrawals, and settlement.
- Ship regulated features: Partner cross-functionally with Product, Compliance, and Design to deliver high-stakes financial features such as KYC/EDD, fraud checks, and reconciliation.
- Own correctness and auditability: Take ownership of production on-call for money-movement systems where correctness, reliability, and auditability are non-negotiable.
- Drive team process: Mentor engineers, onboard new hires, and lead backlog grooming and tech-debt reduction efforts.
- Collaborate cross-functionally: Work closely with engineers across the platform to keep payments systems tightly integrated with the broader exchange.
What we’re looking for
- Senior-level backend engineering experience with payments, fintech, or financial-data integrations (processors like Stripe, banking rails, card networks).
- Proven track record leading migrations from legacy/monolith systems to reliable distributed services (Go, gRPC, DynamoDB/MySQL) without production disruption.
- Experience partnering with Product, Compliance, and Design to ship regulated or high-stakes financial features (KYC/EDD, fraud, reconciliation).
- Comfortable owning production on-call for money-movement systems where correctness and auditability are critical.
- Track record of mentoring, onboarding, and driving team process (backlog grooming, tech-debt reduction).
- (Plus) Experience in crypto, prediction markets, or other high-growth regulated fintech environments.
- (Plus) Experience deploying systems in cloud environments (AWS/GCP) and using containers.
Benefits
- Competitive salary & equity
- Unlimited PTO
- Full Health, Vision, & Dental coverage
- 401k match
- Hardware setup — new MacBook Pro, big display, & accessories
Create your free OnJob profile to apply — we'll take you to Polymarket's application after sign-up. · Posted 24 Jul 2026.
Senior Backend Engineer, Payments at Polymarket — questions answered
What does the Senior Backend Engineer, Payments role at Polymarket pay?
Polymarket does not publish a salary on this Senior Backend Engineer, Payments listing, so OnJob shows no figure for it rather than an estimate. For what this role pays across the market, the OnJob salary guides aggregate the live listings that do disclose pay.
Where is the Senior Backend Engineer, Payments role at Polymarket based?
Polymarket lists this Senior Backend Engineer, Payments role in New York, NY, United States, advertised as full time work at that location. Larger employers sometimes cover several sites under one city name, so confirm the exact office with Polymarket before you apply.
Is the Senior Backend Engineer, Payments role at Polymarket still open?
The Senior Backend Engineer, Payments posting at Polymarket was open at OnJob's last check of the employer's careers page, having been published on 24 July 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Senior Backend Engineer, Payments role at Polymarket?
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