Skip to content
KalshiKalshiNew York, NY

Software Engineer, Trading Platform

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.

200k – 280k
On-site4+ YOEBackend Engineering

About the role

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

Skills

GoC++RustFix ApiRelational DatabasesConcurrent SystemsPostgresOrder MatchingTrade ExecutionClearing Systems

Similar roles

Backend Engineering jobs
Firecrawl

Backend Infrastructure Engineer

FirecrawlSan Francisco, CA

Build and maintain scalable infrastructure for reliable web data collection at Firecrawl, focusing on proxy layers, success rates against adversarial sites, and high-throughput systems under spiky loads. Requires 3+ years in backend, networking, or infrastructure engineering with strong ownership and reliability focus.

200k – 250k
Remote3+ YOEBackend Engineering
Latent

Software Engineer

LatentSan Francisco, CA +1

Builds backend systems for healthcare AI platform, focusing on data pipelines, distributed systems, EHR integrations, and AI model operationalization. Requires strong TypeScript backend experience and distributed systems expertise.

200k – 285k
On-siteBackend Engineering
Phantom

Software Engineer, Backend (Trading)

PhantomUnited States

Builds backend systems for crypto trading features, including APIs, data pipelines, and protocol integrations across blockchains like Solana and Ethereum. Requires 5+ years software engineering experience and interest in open platforms.

200k – 250k
Remote5+ YOEBackend Engineering
Kalshi

Software Engineer, Product

KalshiNew York, NY

Builds backend services, APIs, and data-driven features like personalization engines for Kalshi's prediction market trading platform. Requires 4+ years experience, Bachelor's in CS, Golang/Java proficiency, and REST API/database expertise.

200k – 280k
On-site4+ YOEBackend Engineering
Tessera Labs

Software Engineer, Backend

Tessera LabsSan Jose, CA +2

Builds and maintains scalable backend systems, RESTful APIs, microservices, and integrations with AI models and enterprise platforms like Salesforce and SAP using Python and cloud technologies. Requires 3-5 years backend experience with focus on APIs and distributed systems.

200k – 250k
Hybrid3+ YOEBackend Engineering