Senior Full Stack Engineer Growth and Experimentation
Payward, Inc. is the parent company and operating platform behind Kraken and a portfolio spanning trading, custody, payments, lending, tokenized assets, onchain finance, and benchmarks.
Funding history
Investors
Projects
About Payward, Inc.
Payward operates unified financial infrastructure across crypto and traditional markets, including shared liquidity, risk and margin systems, collateral and settlement, compliance, and licensing. Its first-party portfolio includes Kraken, Kraken Pro, NinjaTrader, Breakout, xStocks, Payward Services, CF Benchmarks, Reap, Krak, Kraken Prime, Kraken OTC, Kraken Custody, and Bitnomial.
Skills
About the Role
You will build and ship consumer features, primarily in React Native and TypeScript. You will own experiments from hypothesis through launch, measurement, and iteration; improve onboarding and activation; build growth features; contribute backend services and APIs; and use experiment results to decide what to scale, refine, or stop.
Requirements
- 6+ years of software development experience building consumer-facing applications
- Strong hands-on React and React Native experience
- Experience running consumer growth experiments with measurable impact
- Backend proficiency designing and implementing services and APIs
- Openness to working in Rust
- Strong JavaScript and TypeScript fundamentals
- Experience with APIs, WebSockets, real-time systems, mobile performance, testing, and modern development workflows
- Experience designing, running, and analyzing A/B tests
- Experience with feature flags, statistical significance, product analytics, funnel data, and cohort data
- End-to-end product-feature ownership
Responsibilities
- Build and ship consumer-facing features in React Native and TypeScript
- Own experiments from hypothesis through design, launch, measurement, and iteration
- Improve onboarding, activation, and feature discovery
- Build viral acquisition and growth features
- Contribute backend services and APIs for experiments
- Analyze experiment results and decide whether to scale, iterate, or stop initiatives
Hiring Process
May include job-related skills or work-style assessments.
