Polymarket

Own and optimize core backend systems focusing on matching engine and order state management for perpetual futures. | Senior backend engineer with experience in low-latency order-book exchange systems and proficiency or willingness to work in Rust. | 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 Polymarket is launching perpetual futures and we're looking for Senior Backend Engineers to own the core systems that make it run. This is backend exchange engineering in the truest sense: low-latency order matching, high-throughput order state management, and the infrastructure that keeps an exchange operating correctly under load. Ownership here is real and broad. We're looking for engineers who have built and operated order-book-based exchange systems before and can step in with deep context, take meaningful ownership of critical backend components, and raise the reliability and performance of the platform as we scale. If you've worked on the backend of a serious exchange and want to do it again somewhere with momentum, this is the role. What You'll Do Own core exchange backend systems. Take deep ownership of the systems that power order matching, position management, and order state across perpetual futures. Build and optimize the matching engine. Profile hot paths, reduce lock contention, and drive improvements to latency and throughput backed by benchmarks and production-grade evidence. Design for correctness at scale. Build queueing and backpressure mechanisms that keep the orderbook consistent and reliable under high load, without crossing books, creating ghost fills, or introducing stale order state. Build for observability. Instrument systems with metrics, logs, and traces. Establish rollback guarantees and narrow critical paths that make production incidents faster to detect, diagnose, and resolve. Improve runtime performance. Optimize CPU, memory, and allocation behavior to meet the demands of a high-throughput exchange in production. Own production incidents end-to-end. Debug latency and correctness issues directly, and drive follow-through that leaves the system measurably better each time. What We're Looking For Senior backend engineering experience with a strong background in order-book-based exchange systems Deep knowledge of low-latency systems: concurrency, lock contention, async correctness, and performance profiling Experience with matching engines, order state management, or similar exchange infrastructure Comfort working in Rust or a strong willingness to work in it — enthusiasm for the language is a plus, resistance to it is a red flag Strong observability fundamentals: metrics, logs, distributed traces, and profiling tools Strong computer science fundamentals: algorithms, data structures, and systems design (Plus) Experience with high-frequency or low-latency trading infrastructure (Plus) Familiarity with Redis, PostgreSQL, gRPC, and Protobuf (Plus) Kubernetes and AWS production operations experience Benefits Competitive salary & equity Unlimited PTO Full Health, Vision, & Dental coverage 401k match Hardware setup: new MacBook Pro, big display, & accessories

Own and optimize the web platform's speed, efficiency, and scalability through technical leadership and performance engineering. | Deep experience in web performance engineering for high-traffic systems with proficiency in JavaScript, TypeScript, and modern rendering strategies. | 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 Polymarket is looking for a Lead Web Performance Engineer to own the speed, efficiency, and scalability of our web platform. You'll set the direction for web performance at Polymarket, establish the standards and systems that keep the product fast at scale, and shape how Polymarket thinks about performance as a discipline. We're looking for someone who has operated at serious scale (ie billions of page loads) and knows what it takes to make a high-traffic web product fast for every user, everywhere. You'll come in with deep technical conviction and lay the foundation for a world-class web performance practice. What You'll Do Own web performance end-to-end. Take responsibility for load times, rendering performance, and runtime efficiency across Polymarket's web platform, with measurable targets and a clear plan to hit them. Set the technical direction. Define the architecture, standards, and tooling that govern how Polymarket approaches performance – caching strategy, rendering pipeline, bundle discipline, and edge delivery. Optimize the critical rendering path. Identify and eliminate bottlenecks in how pages load and render, including server-side rendering, hydration, code splitting, lazy loading, and asset delivery. Drive caching and CDN strategy. Design and maintain caching architectures at every layer (browser, CDN, and edge) to minimize latency and maximize cache hit rates at scale. Build performance observability. Instrument real user monitoring, Core Web Vitals tracking, and synthetic testing so the team has continuous, actionable visibility into performance regressions. Set the performance bar across engineering. Establish benchmarks, budgets, and standards that keep performance a first-class concern as the product and engineering team grow. What We're Looking For Deep experience in web performance engineering at significant scale – you've worked on systems serving billions of page loads and know what breaks at that level Strong expertise across the web performance stack: rendering, caching, CDN configuration, bundle optimization, and Core Web Vitals Proficiency in JavaScript and TypeScript, with a strong understanding of how browser engines, the V8 runtime, and the network layer interact Experience with real user monitoring, synthetic performance testing, and building observability systems that surface regressions before users feel them A rigorous, measurement-driven approach: you don't guess at performance problems, you profile, instrument, and prove them Technical leadership experience: you've set direction, raised the bar across a codebase, and influenced how a broader engineering team thinks about performance (Plus) Experience with Next.js, React, and modern SSR/SSG rendering strategies at scale (Plus) Familiarity with edge computing, worker runtimes, or CDN-level programmability Benefits Competitive salary & equity Unlimited PTO Full Health, Vision, & Dental coverage 401k match Hardware setup: new MacBook Pro, big display, & accessories

Architect and implement high-throughput backend services, define engineering standards, ensure system reliability, and collaborate cross-functionally. | 5+ years Go production experience, deep SQL and microservices expertise, event-driven systems and observability tools experience, Web3 or financial systems familiarity desired. | 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 Polymarket is looking for a Senior Backend Engineer to work on Gamma, the core backend powering Polymarket's markets platform. Gamma processes every market creation, trade, and resolution on the platform: at scale, under load, with no margin for error. You'll ship features with direct product impact, push the boundaries of what the system can handle, and help define how ownership evolves as the platform grows. If you want your work to matter immediately and visibly, this is that role. What You'll Do Architect and implement Go-based services. Design and build services capable of sustaining high request throughput with low latency at scale. Define and enforce engineering standards. Own API versioning strategy, error handling conventions, and service health benchmarks across the backend. Uphold code quality. Drive quality through code reviews, shared conventions, and technical documentation that the broader team can build on. Partner cross-functionally. Collaborate with teams across product and infrastructure to align backend services with broader company goals. Own reliability. Contribute to on-call rotations and drive reliability improvements informed by incident trends and system behavior. What We're Looking For 5+ years of production Go experience: fluent in Go idioms, interfaces, and concurrency patterns Strong API and microservices architecture experience: designing, implementing, and maintaining REST and GraphQL APIs at scale Deep SQL expertise with PostgreSQL or MySQL, plus familiarity with non-relational stores including Redis and ClickHouse Event-driven architecture experience: messaging systems like Redpanda or Kafka, real-time data pipelines, and gRPC service communication Hands-on observability and monitoring experience with Prometheus, Grafana, or OpenTelemetry for tracing, metrics, and alerting (Plus) 1+ years of production Rust experience (Plus) Familiarity with prediction markets, trading platforms, or financial systems (Plus) Experience with blockchain or Web3 systems, particularly EVM-based (Plus) Prior experience in a fast-paced startup environment Benefits Competitive salary & equity Unlimited PTO Full Health, Vision, & Dental coverage 401k match Hardware setup: new MacBook Pro, big display, & accessories

Own complex API escalations and act as liaison between customers and engineering to resolve technical issues. | Requires 5+ years in technical support or escalation engineering with strong API debugging and blockchain knowledge. | 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 Polymarket is looking for an Escalation Engineer to sit within the CX function and own the most technically complex support issues our traders and API builders encounter. You'll be the bridge between customers and engineering — diagnosing API failures, tracing on-chain transactions, reproducing bugs, and translating customer pain into tickets engineering actually wants to pick up. This is not a typical support role. Our highest-value users — API traders, market makers, institutional participants — deserve a dedicated technical advocate who speaks their language. You'll report bugs, join engineering triage calls, verify fixes, and push for the tooling improvements that reduce ticket volume for everyone. What You'll Do • Own complex API escalations end-to-end: integration failures, CLOB order issues, FIX/REST/WebSocket debugging, and SDK questions • Trace transactions on Polygon, investigate wallet and deposit discrepancies, and troubleshoot USDC balance and position issues • Translate customer-reported issues into well-structured bug reports; attend engineering triage calls and follow up on resolution timelines • Partner with QA to verify fixes post-ship and help build regression test cases from real escalations • During incidents, serve as the technical liaison between engineering and CX — help craft customer communications and quantify impact • Aggregate escalation patterns into product feedback and push for user-facing improvements like better error messaging and self-serve tooling What We're Looking For • 5+ years in technical support, escalation engineering, solutions engineering, or SDET — ideally at a fintech, crypto, or trading platform • Strong API debugging skills across REST, WebSocket, and FIX protocols; comfortable with cURL, Postman, and reading API logs • Familiarity with blockchain fundamentals: reading block explorers, wallet architecture, on-chain troubleshooting • Working proficiency in Python or TypeScript — enough to write scripts, query data, and build proof-of-concept tooling • Strong written communication: able to translate between a frustrated VIP trader and a busy backend engineer without losing fidelity • Comfort with data tools — SQL, Hex, Amplitude, or similar — for investigating user issues • (Plus) Experience with prediction markets, sports betting platforms, or exchange backends • (Plus) Background in DeFi protocols, CLOB mechanics, or market making • (Plus) Experience building internal tools or automations that improve support efficiency Benefits • Competitive salary & equity • Unlimited PTO • Full Health, Vision, & Dental coverage • 401k match • Hardware setup — new MacBook Pro, big display, & accessories

Manage customer support inquiries across various channels during USA hours. Build processes and tools to enhance user support and ensure compliance with company standards. | Candidates should have 3+ years of experience in web3, preferably in crypto exchanges or financial services. Strong communication skills and a passion for learning about emerging technologies are essential. | About Polymarket Polymarket is the world’s largest prediction market. It’s half "put your money where your mouth is," half search engine for the future. We're growing fast – both in terms of volume (>$6B traded so far this year) 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 We’re looking for a community-first customer support lead to own the user experience across Discord, live chat, email, and beyond—during USA hours. You’ll be the trusted voice of Polymarket for thousands of users, solving problems in real time, spotting trends before they become issues, and helping shape the way we engage with our community. This role goes beyond answering questions—you’ll build processes, create tools, and train others to deliver the kind of support that keeps users coming back. If you’re the kind of person who thrives in fast-moving environments, loves crypto culture, and knows Discord inside and out, you’ll fit right in. What you'll do Manage customer support inquiries, discord messages and live chat during USA timezones. Develop and lead a culture of delightful customer support across multiple channels (discord, email, telegram & chat). Act as a trusted point of contact for the community and escalate high priority issues related to product, design & engineering teams. Build internal programs, tools, resources and training to help launch or improve product support workflows. Ensure compliance with Polymarket regulations and standards. Use data and customer paint points to identify opportunities to reduce customer friction. What we're looking for 3+ years of experience in web3, with a strong preference for someone with experience in crypto exchanges or financial services. A discord savant. Ideally you’ve managed large discord communities before and are up to date with the latest best practices. Crypto is a 24/7/365 business so availability to work shifts on weekends, and outside of the "standard" work day. You can pivot on the fly. Polymarket is constantly evolving, so our priorities do, too. What you worked on last month may not be what you work on today, and that excites you. You’re not looking for a boring job. You want to be part of a winning team. We’re stronger together, and you’re a person who embraces being pushed out of your comfort zone. Excellent communication skills (written and verbal), ability to simplify complex topics for broad audiences. You’re never tired of learning. You want to be a pro in bleeding edge tech like DeFi, Prediction Markets, DAOs, and Web 3.0. Benefits Competitive salary & equity Unlimited PTO, Health, Vision, & Dental coverage 401k match Hardware setup — new MacBook Pro, big display, & accessories.

You will architect and build backend systems, ensuring high-performance services that handle large-scale transactions. Additionally, you will optimize performance and enhance security and reliability across the platform. | The ideal candidate should have over 8 years of experience in backend development and master-level proficiency in systems programming languages. Experience with cloud platforms and strong problem-solving skills are also essential. | About Polymarket Polymarket is the world’s largest prediction market. It’s half "put your money where your mouth is," half search engine for the future. We're growing fast – both in terms of volume (>$1B traded so far this year) 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 Polymarket is looking for a world-class backend engineer to join our platform engineering team as we scale. The ideal candidate is obsessed with performance, security, and scalability—someone who can architect and optimize high-throughput systems with cutting-edge infrastructure. You will play a key role in building and maintaining the foundation that powers our prediction markets, ensuring reliability and efficiency as we continue to grow. What you’ll do We're looking for an experienced individual contributor who enjoys working on deeply technical problems and optimizing mission-critical infrastructure. Architect & build backend systems. You'll design, implement, and maintain high-performance backend services and APIs that handle large-scale transactions and real-time data. Optimize performance & scalability. You’ll push the limits of our system’s throughput and efficiency, ensuring seamless operation at scale. Enhance security & reliability. You’ll implement best practices for secure, fault-tolerant, and highly available distributed systems. Cross-company collaboration. You’ll collaborate with front-end engineers, designers, and stakeholders across the company to deliver a fully integrated user experience. Contribute to code reviews. You'll play a critical role in maintaining the high quality of our codebase by providing feedback and suggestions on others' work during code review sessions. Participate in research & innovation. You’ll stay at the forefront of blockchain-based trading technologies, exploring new solutions to improve our platform. Interface with Customers. You’ll communicate directly with customers, providing support and gathering feedback. What we’re looking for 8+ years of experience in backend development Experience architecting and developing solutions to ambiguous problems with significant impact and high usage Master-level proficiency in systems programming languages like Golang, Rust, or C++ Strong knowledge of database systems and internals (e.g., PostgreSQL, MongoDB) Experience with cloud platforms (e.g., AWS, GCP) and infrastructure as code (e.g., Terraform, Ansible) Excellent problem-solving and communication skills (Plus) Blockchain-specific backend experience (e.g., working on BFT consensus engines, event indexing systems, libp2p) (Plus) Experience with Ethereum roll-up technologies (e.g., Arbitrum Nova, Optimism) (Plus) Open source contributor (Plus) Active participant on ethresear.ch Benefits Competitive salary & equity Unlimited PTO, Health, Vision, & Dental coverage 401k match Hardware setup — new MacBook Pro, big display, & accessories.

You will be responsible for designing, building, and maintaining the backbone of our engineering platform, including developer workflows and CI/CD pipelines. Your role will involve optimizing mission-critical infrastructure and ensuring high availability and reliability of services. | Candidates should have 6+ years of hands-on experience in software engineering and deep familiarity with cloud infrastructure and DevOps tooling. A strong desire to learn and collaborate effectively across teams is essential. | About Polymarket Polymarket is the world’s largest prediction market. It’s half "put your money where your mouth is," half search engine for the future. We're growing fast – both in terms of volume (>$1B traded so far this year) 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 Polymarket is looking for a world-class infrastructure engineer to join our team and help scale the systems that power our products. You’ll be responsible for designing, building, and maintaining the backbone of our engineering platform—from developer workflows and CI/CD pipelines to core infrastructure that supports high-performance APIs and data services. You’ll have the autonomy to make big technical decisions, drive system architecture, and implement solutions that balance speed, reliability, and long-term maintainability. What you’ll do We're looking for an experienced individual contributor who enjoys optimizing mission-critical infrastructure. Build & automate development workflows. You’ll design and maintain infrastructure that standardizes how we develop, version, test, and deploy software across environments. Architect scalable systems. You’ll make thoughtful architectural decisions and tradeoffs, balancing risk, performance, cost, and maintainability. Power high-performance services. You’ll contribute to infrastructure supporting real-time APIs and low-latency data feeds. Develop testing infrastructure. You’ll build robust tooling for automated testing at all levels—from unit to integration to API. Ensure availability & reliability. You’ll own critical infrastructure that minimizes downtime and reduces risk of failure. Move fast without breaking things. You’ll deliver high-quality solutions quickly, with a strong sense of ownership and attention to detail. Operate autonomously. You’ll take initiative and make independent decisions—no micromanagement here. Collaborate across teams. You’ll work closely with engineers throughout the company to support deployment, performance, and operational needs. What we’re looking for 6+ years of hands-on experience in software engineering, with a strong track record of delivering production-grade systems. Deep familiarity with cloud infrastructure and DevOps tooling, including AWS, Kubernetes (K8s), Terraform, Kafka, load balancing, ElasticCache, messaging queues, Flux, Docker, GitHub Workflows, Cloudflare, FluxCD, PostgreSQL, MongoDB, Redis, S3, Lambda, and AWS networking (VPCs, VPC Peering). Excellent communication skills and a strong desire to learn, grow, and collaborate effectively across teams. Solid technical acumen and a results-driven mindset, capable of solving complex engineering challenges with practical solutions. Proven history of improving engineering workflows, through the creation and implementation of new tools and processes that boost efficiency and consistency. Leadership experience in planning and executing large-scale projects, with lasting impact on core systems or engineering teams. Ability to ship quickly and iterate fast, without compromising quality. Exceptional judgment in prioritizing tasks, balancing urgency with strategic importance. Growth-oriented mindset, with a steep learning curve and an eagerness to evolve with the role. Genuine passion for engineering—you take pride in your craft and strive for excellence in everything you build. Specialized expertise in at least one of the following areas: Networking: demonstrated ability to diagnose and resolve complex network-related issues. Security: Relevant certifications, such as CISSP, CISM, or AWS certifications, or equivalent experience in designing secure systems. (PLUS) Proven experience building deployment systems in: K8S RDS / PSQL IAM policies/roles ElasticCache Cloud Networking (VPC peering, subnets, etc) Benefits Competitive salary & equity Unlimited PTO, Health, Vision, & Dental coverage 401k match Hardware setup — new MacBook Pro, big display, & accessories.