# Senior C/C++ Engineer, US Exchange

**Company:** [Polymarket](https://hotfix.jobs/companies/polymarket)
**Location:** New York, NY
**Role:** Backend Engineering
**Experience:** 5+ years
**Skills:** C++, C, Algorithms, Data Structures, Low-Latency Systems, High-Throughput Systems, Multithreading, Lock-Free Programming, Kafka, Performance Optimization
**Posted:** 2026-02-25

> Build and optimize low-latency, high-throughput C/C++ components for Polymarket's trading exchange infrastructure. Requires 5+ years professional C/C++ experience with algorithms, data structures, and production scalable systems.

## Job Description

## Responsibilities
- Build the exchange core: Design and implement low-latency, high-throughput components of Polymarket’s trading and matching infrastructure using **C/C++**.
- Optimize for speed & scale: Profile, tune, and debug performance-critical systems, with a relentless focus on **latency**, **throughput**, and **determinism**.
- Design robust systems: Develop efficient **algorithms** and **data structures**, and build scalable **messaging** and **event-driven systems** (e.g. **Kafka** or similar).
- Own reliability & correctness: Reinforce the **security**, **availability**, **performance**, and **scalability** of core exchange systems through careful design, testing, and operational rigor.
- Collaborate deeply: Work closely with engineers across product, infra, and data to ensure tight integration between the exchange and the rest of the platform.
- Contribute to engineering excellence: Participate in design reviews, code reviews, and architectural discussions to maintain a high bar for quality across the codebase.

## Requirements
- **5+ years** of professional **C/C++** experience with deep knowledge of **algorithms**, **data structures**, and low-level **performance optimization**.
- Proven experience building or operating **low-latency**, **high-throughput**, **scalable systems** in production environments.
- Strong problem-solving skills, comfort working on complex systems end-to-end, and an entrepreneurial mindset.

## Nice-to-haves
- Background in **finance**, **trading systems**, **networking**, or **exchange infrastructure**.
- Experience with **multithreading**, **lock-free programming**, and advanced optimization techniques.
- Familiarity with **distributed messaging systems** (**Kafka** or similar).

## Benefits
- Competitive salary & equity
- Unlimited PTO, Health, Vision, & Dental coverage
- 401k match
- Hardware setup — new **MacBook Pro**, big display, & accessories.

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