KIKOFF Leagues

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Senior Backend Engineer - Growth

North AmericaSenior

Analytics Fintech Machine Learning Prototyping

Senior Backend Engineer on Kikoff's Growth Team, working on the company's flagship credit-building product: shipping backend features end-to-end, from rapid prototyping and analytics instrumentation to production rollout, with a focus on data-driven experimentation and ML-powered personalization.

244K – 292K $

Open 28d North AmericaFull-timeStaff

Staff Data Scientist, Grant

Agentic AI AI Analytics Causal Inference Data Science +5 skills

Staff Data Scientist embedded with Kikoff's Grant business (earned wage access): leading data work for a product area, defining metrics and measurement systems, running experiments including quasi-experimental designs, and building/evaluating decision-driving models in SQL and Python. Also sets data science best practices company-wide, including shaping how AI agents fit the analysis workflow.

265K – 306K $

Open 22d North AmericaSenior

Senior Fullstack Engineer - User Retention & App Ecosystem

AI API Fintech Flutter Machine Learning +6 skills

Senior fullstack engineer on Kikoff's User Retention & App Ecosystem team, owning product areas like credit report retrieval, disputes, off-boarding, and cross-app integration end-to-end for millions of users. Backend-focused fullstack work; stack includes Ruby on Rails, React, Flutter, and MySQL.

244K – 292K $

Open 95d North AmericaSenior

Senior Machine Learning Engineer

A/B Testing AWS CI/CD Cloud Containerization +13 skills

Build and maintain ML infrastructure for fintech underwriting models, deploying scalable systems in production while collaborating with cross-functional teams.

244K – 292K $

Open 48d North AmericaStaff

Staff Machine Learning Engineer

AWS CI/CD Cloud Containerization Deep Learning +12 skills

Staff Machine Learning Engineer at Kikoff, a profitable consumer fintech (credit building and lending) in San Francisco. A hands-on IC role owning the ML platform and modeling roadmap end to end — underwriting, fraud/risk, and personalization models — including feature stores, serving, monitoring, and model governance for a regulated lender.

307K – 352K $