Polymarket - Senior Platform Engineer

Devopsroles; New York (NY); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Competitive pay

Equity

Unlimited PTO

Health insurance

Vision insurance

Dental coverage

401k match

MacBook Pro setup

Job summary

Polymarket is seeking a world-class backend engineer to scale our platform with a focus on performance, security, and reliability. You will design and maintain high-throughput services and APIs powering real-time transactions and data.

Join a team building a blockchain-based prediction market with emphasis on scalable infrastructure, cross-functional collaboration, and research into cutting-edge technologies.

Qualifications

• 8+ years of backend development experience.
• Experience solving ambiguous, high-impact problems.
• Proficiency in Go, Rust, or C++ at master level.
• Strong knowledge of PostgreSQL and MongoDB.
• Experience with AWS or GCP and Terraform/Ansible.
• Excellent problem-solving and communication skills.
• Plus: blockchain-specific backend experience.
• Plus: Ethereum roll-up technologies.
• Plus: open source contributor.
• Plus: active participant on ethresear.ch.

Responsibilities

• Architect & build backend systems with high performance and reliability.
• Optimize throughput and scalability for real-time data.
• Enhance security and fault-tolerant operation of distributed systems.
• Collaborate across frontend, design, and product teams.
• Contribute to code reviews to maintain code quality.
• Participate in research & innovation on blockchain tech.
• Interface with customers to gather feedback and provide support.

Skills

Backend development

Systems programming

Go / Rust / C++

Databases

Cloud platforms

Infrastructure as code

Problem solving

Communication skills

Blockchain backend

Ethereum roll-ups

Open source

Ethresear.ch participation

Job description

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 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.

• 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.