Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.
Backend Engineer
Brazil
June 16, 2026
Job description
We’re looking for a passionate Backend Developer to join our growing engineering team. You'll be working on scalable backend systems, collaborating with cross-functional teams, and shipping real products used by thousands of users.
Key Responsibilities:
- Build and maintain the core engine: pricing / market-making, order books and matching,execution, and inventory-risk controls.
- Research, prototype, and productionize quantitative logic for pricing, order-flow signals,and risk management.
- Develop simulation and backtesting frameworks; run parameter sweeps and evaluateperformance against historical and synthetic order flow.
- Implement the real-time delivery path (WebSocket fan-out) and authoritative data-feedingestion, with strict stale-data safety.
- Contribute to the money-grade double-entry ledger and the settlement flows that dependon it.
- Define and monitor key risk and performance metrics, and instrument the system so theyare observable in real time.
- Write correctness-critical, deterministic, well-tested code — with attention to numericalprecision and edge cases — and keep a reference test suite green in CI.
- Collaborate across engineering, product, and infrastructure to take work from spec toproductioninistic, test-covered code.
Requirements
- Strong backend engineering and computer-science fundamentals: data structures,algorithms, concurrency, and performance/latency awareness.
- Proficiency in Python / TypeScript / Node.js — or strong adjacent experience and theappetite to be fully productive in TypeScript
- A solid quantitative foundation: probability, statistics, and numerical methods.
- Experience with relational databases (PostgreSQL) and event-driven or streamingarchitectures.
- A habit of proving correctness with tests, and a fail-safe mindset — when something iswrong or unverified, stop rather than continue wrongly.
- Clear communication with both technical and non-technical stakeholders.
- Experience in trading, market-making, exchanges, derivatives/options pricing, or predictionmarkets.
- Knowledge of market micro-structure, order-book dynamics, execution, and adverseselection.
- Low-latency / real-time systems, WebSockets at scale, and event sourcing / CQRS.
- Double-entry ledger or payments-platform experience.
- Cloud at production scale (AWS EKS / RDS), Terraform, and observability (Datadog /Sentry).
- Simulation / backtesting experience and statistical rigour about what a result does and doesn't mean.
Benefits
In addition to a market competitive compensation, we have a reward philosophy that expand beyond this.
Fully remote
Opportunity to work with a truly global team
Flexible timings. You decide your work schedule
Apply now
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Chainguard is the trusted source for open source. By delivering hardened, secure, and production-ready builds of all the open source software engineers and AI agents rely on, Chainguard helps organizations build faster, stay compliant, and eliminate risk.
Chainguard is the trusted source for open source. By delivering hardened, secure, and production-ready builds of all the open source software engineers and AI agents rely on, Chainguard helps organizations build faster, stay compliant, and eliminate risk.
Chainguard is the trusted source for open source. By delivering hardened, secure, and production-ready builds of all the open source software engineers and AI agents rely on, Chainguard helps organizations build faster, stay compliant, and eliminate risk.