# Software Engineer, Trading Platform

**Company:** [Kalshi](https://hotfix.jobs/companies/kalshi)
**Location:** New York, NY
**Role:** Backend Engineering
**Salary:** $200k – $280k/yr
**Experience:** 4+ years
**Skills:** Go, C++, Rust, Fix Api, Relational Databases, Concurrent Systems, Postgres, Order Matching, Trade Execution, Clearing Systems
**Posted:** 2026-01-05

> Builds high-performance trading platform including order matching, trade execution, clearing systems, and broker integrations. Requires 4+ years experience with concurrent systems, databases, and leading large projects in a fast-paced fintech environment.

## Job Description

## Responsibilities
- Develop order matching and trade execution algorithms and data structures
- Build high-performance data feeds and trading APIs for clients
- Implement high guarantee and availability clearing systems, including margining, collateral management, and banking integrations
- Lead integrations with external market makers, brokers, and hedge funds
- Stress test large-scale critical systems for robustness and maintainability
- Optimize database access patterns and internal algorithms
- Design new market structures (e.g., non-binary markets, scalars, futures)
- Interact with customers to define features, ship products, and iterate
- Ship fast with high quality and make key decisions

## Requirements
- 4+ years of software engineering experience
- Experience planning and leading large projects with long-term impact
- Strong technical grasp for complex engineering problems
- Solid understanding of relational databases and transactions
- Familiarity with writing highly concurrent systems
- History of creating processes and tooling for engineering efficiency
- Excellent judgment on task prioritization
- Growth mindset and love of the craft

## Nice-to-Haves
- Experience with financial systems, FIX API, clearing infrastructure, broker connectivity
- Proven experience building large-scale systems
- Interest in direct customer interaction

## Compensation
- Salary: $200,000–$280,000 annually, plus equity and benefits

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**Apply:** https://hotfix.jobs/jobs/c92e077d-6968-4c52-8759-6e2003888b45
**Canonical:** https://hotfix.jobs/jobs/c92e077d-6968-4c52-8759-6e2003888b45