Staff Backend Engineer, Services

Polymarket

New York, NY

On-site

Who this role is best for

Candidates with extensive backend development experience in high-performance systems and a strong Go background will find this high-autonomy, technical role in New York suits their expertise in building mission-critical infrastructure.

Best fit for

Experienced backend engineers with a focus on real-time systems and production reliability.
— “You'll be expected to identify problems, propose solutions, and ship them.”
Individuals with a track record of optimizing high-throughput systems for latency and correctness.
— “Profile and tune systems across the full stack, identifying bottlenecks in latency, throughput, and memory usage before they become production problems.”
Engineers who thrive in environments with minimal bureaucracy and high ownership of systems.
— “There's no heavy process here, no committees, no long approval chains.”

Things to consider

The role demands ownership of production reliability and incident response.
— “Own production reliability for the systems you build, including diagnosing live incidents, writing postmortems, and shipping fixes that prevent recurrence.”
The position requires working closely with product, infrastructure, and data teams.
— “Work directly with engineers across product, infrastructure, and data to integrate exchange services tightly with the broader platform.”

How to stand out

Highlight experience in building and debugging high-throughput, low-latency systems on Linux.
— “Experience building and debugging high-throughput, low-latency systems on Linux end-to-end”
Emphasize your ability to ship fixes quickly and prevent recurrence of production issues.
— “shipping fixes that prevent recurrence”
Showcase your familiarity with distributed systems design and failure recovery strategies.
— “architectural decisions on distributed systems design, with a focus on failure modes, graceful degradation, and recovery under partial outages”
Demonstrate your proficiency with Go, and mention Python or Java if relevant.
— “Design and implement low-latency backend services that power Polymarket's core exchange, primarily in Go, with Python or Java where appropriate.”

Pace · Fast PacedCollaboration · MediumAutonomy · HighDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

low-latency backend services
high-throughput systems
production reliability

Typical background

7+ years of backend development experience

Skills & requirements

Required

GoPythonJavaAlgorithmsData StructuresConcurrencyMemory ManagementLinuxEvent-driven Data PipelinesApis

Preferred

KafkaPulsarProduction ReliabilityIncident DiagnosisPostmortem Writing

Stack & domain

GoPythonJavaKafkaPulsar

About the role

Original posting from Polymarket via Ashby

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 terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.
ABOUT THE ROLE
The exchange is the core of what Polymarket does. Every trade, every order, every market resolution runs through the systems this team owns. As a Staff Backend Engineer on the Services team, you'll be working directly on that infrastructure, building and scaling the backend that processes real money, in real time, at meaningful volume. The work is technical, high-stakes, and unambiguous in its consequences.
This is an individual contributor role with high autonomy and high ownership. You'll work alongside a small group of senior engineers who care deeply about correctness and performance. There's no heavy process here, no committees, no long approval chains. You'll be expected to identify problems, propose solutions, and ship them. The mandate is simple: keep the exchange fast, correct, and available as Polymarket continues to scale.
If you've spent your career building systems where performance actually matters, where a bug in production has real consequences, this is the kind of problem you've been waiting to work on.
WHAT YOU'LL DO
Design and implement low-latency backend services that power Polymarket's core exchange, primarily in Go, with Python or Java where appropriate.
Profile and tune systems across the full stack, identifying bottlenecks in latency, throughput, and memory usage before they become production problems.
Build and maintain event-driven data pipelines and APIs using streaming platforms like Kafka or Pulsar, ensuring data moves reliably and quickly across the exchange.
Own production reliability for the systems you build, including diagnosing live incidents, writing postmortems, and shipping fixes that prevent recurrence.
Work directly with engineers across product, infrastructure, and data to integrate exchange services tightly with the broader platform.
Contribute to architectural decisions on distributed systems design, with a focus on failure modes, graceful degradation, and recovery under partial outages.
WHAT WE'RE LOOKING FOR
7+ years of professional backend development experience, with strong proficiency in Go, Python, or Java. Go experience is a significant advantage.
Deep understanding of algorithms, data structures, concurrency, and memory management, with a track record of applying that knowledge to real production systems.
Experience building and debugging high-throughput, low-latency systems on Linux end-to-end, from design through to production operation.
Strong instincts for correctness, especially in systems where failures have financial consequences. You write defensively, think about edge cases early, and treat bugs in prod as a serious matter.
Comfortable working independently in a high-autonomy environment. You identify what needs to be done and do it without waiting to be unblocked.
(Plus) Experience in trading systems, high-frequency trading, gaming, telecom, or any domain where latency is a hard constraint, not a stretch goal.
(Plus) Production experience with Kafka, Pulsar, or similar streaming platforms at meaningful scale.
(Plus) Familiarity with gRPC, Protobuf, or ZeroMQ.
(Plus) Experience deploying and operating services in cloud environments such as AWS or GCP, using containers and modern deployment tooling.
BENEFITS
Competitive salary & equity
Unlimited PTO
Full Health, Vision, & Dental coverage
401k match
Hardware setup: new MacBook Pro, big display, & accessories
PAY TRANSPARENCY
Base salary range: $250,000 to $500,000, plus equity and benefits.
This is a good-faith range for the level we're hiring at. Experience varies widely within a title here, so if your expectations fall outside it, reach out anyway. We're always happy to talk it through.

Source: Polymarket careers (Ashby)