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We’re building a next-generation financial ecosystem — think NYSE or CME, rebuilt from scratch. As an Infrastructure Engineer at Kalshi, you’ll help design, build, and scale the systems that power our exchange, clearinghouse, API infrastructure, broker and market-maker connectivity, and more. We are a small engineering team, which means your responsibilities scale rapidly and your impact is clear, visible, and foundational. Much of our infrastructure is still greenfield, and entire systems can be yours to design and own. You’ll work across the full infrastructure and DevOps stack to ensure reliability, speed, and robustness for one of the most ambitious financial platforms ever built.
Job Responsibility:
Build and standardize infrastructure for how software is built, versioned, tested, and deployed
Automate testing frameworks across the entire testing pyramid (unit, API, integration)
Architect large-scale systems with sound tradeoffs for performance, risk, and long-term maintainability
Develop and maintain infrastructure for high-performance data feeds and trading APIs
Support clearing systems with high availability and strict guarantees, including margining, collateral management, and banking integrations
Stress-test and harden critical systems for robustness and scalability
Ship fast and with high quality
Make autonomous technical decisions — we offer flexibility, not hand-holding
Contribute to shaping Kalshi’s engineering culture as the company grows
Requirements:
3+ years of professional software engineering experience
Strong technical fundamentals and comfort tackling complex engineering problems
Excellent communication skills and a strong desire to learn
Deep familiarity with AWS, Kubernetes, Terraform, RDS, Kafka, load balancing, etc.
Experience creating or implementing processes and tooling that improve engineering efficiency
Demonstrated ability to plan and drive large projects with long-term impact
Excellent judgment and prioritization skills
Growth mindset, high slope, and eagerness to learn
Craftsmanship: you care deeply about quality and outcomes
Ability to ship extremely quickly
Strong experience in one or more of: Networking: debugging and resolving complex networking issues
Security: certifications such as CISSP or CISM
Nice to have:
Experience building deployment systems in Kubernetes
Experience designing dev/test environments in Kubernetes