Full Stack Engineer, Fingerprint
Growth
$120-140k
OTE
We do not sponsor visas
Device intelligence platform for fraud detection
Open for applications
Device intelligence platform for fraud detection
101-200 employees
Open for applications
$120-140k
OTE
We do not sponsor visas
101-200 employees
Company mission
To empower developers to build safe and seamless online services.
Role
Who you are
- 5+ years of experience as a full stack engineer, with a strong foundation in both frontend and backend development
- Experience working with React, TypeScript, and Node.js (or similar modern frontend and backend frameworks)
- Experience designing and running experiments (A/B testing, feature flags, user cohorts) using Amplitude, PostHog, or similar analytics platforms
- Familiarity with Stripe or other payment platforms for checkout and billing improvements
- Proficiency in databases such as PostgreSQL, DynamoDB, Redis, or similar
- Familiarity with cloud infrastructure (AWS, GCP, or Azure) and CI/CD pipelines
- Strong understanding of product growth metrics (activation rate, conversion rate, retention, etc.) and experience using data to drive engineering decisions
- Proficiency in working cross-functionally with Product, Design, and Data Science teams to execute growth initiatives
- Excellent communication skills and ability to thrive in a fast-paced, remote-first environment
Desirable
- Knowledge of server-side rendering and modern web performance optimizations
- Experience working on developer-focused or API-first products
- Experience with infrastructure-as-code (Terraform, AWS CloudFormation) and containerization (Docker, Kubernetes)
What the job involves
- We are seeking a Full Stack Engineer to join our Growth team to play a critical role in driving product-led growth through engineering initiatives
- You will work closely with product managers, designers, and data scientists to build, iterate, and scale experiments that improve user activation, retention, and conversion
- Design, develop, and maintain full stack applications and growth experiments that enhance onboarding, adoption, and user engagement
- Build and optimize experiment-driven features like A/B tests, user flows, and UI/UX changes to maximize signups, activation rates, and conversions
- Develop and maintain our self-serve user experience, working on our dashboard, onboarding flows, pricing pages, and checkout systems
- Collaborate with the Growth, Product, and Data teams to analyze experiment results and iterate based on findings
- Implement and optimize tracking, analytics, and logging to ensure we have clear visibility into user behavior
- Ensure a seamless integration between frontend and backend services, working across our stack to ship end-to-end features efficiently
- Work on backend systems to improve API efficiency, authentication, and data processing to support scaling self-serve growth
- Actively contribute to improving engineering best practices, testing, and performance optimization
Our take
Digital fingerprinting is an essential process in web browsers that tracks the digital address of a device to monitor web activity. This technique facilitates the identification of fraud and spam, as well as warning signs of account takeovers. However, the success of this requires users to accept cookies, a requirement that is easy to avoid.
Fingerprint provides a digital fingerprinting tool that generates a unique identifier of browser activity without requiring the user to accept cookies. The service uses the same WebGL and canvas fingerprinting utilized by existing competitors, but instead of focusing on devices, it identifies web activity. Suspicious activity will result in the identified user being logged in a database, allowing the service to be improved for others.
With this innovative approach, Fingerprint has been able to build up an impressive client roster of over 6000 companies, including 16% of the top 500 websites by traffic. As well as displaying sustained growth through funding rounds, the company has also continued to improve upon its offering - for instance, in Q1 2023 it reported a decrease in iOS false positive and false negative rates by 85%.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
36% employee growth in 12 months
Company
Funding (last 2 of 4 rounds)
Oct 2023
$33m
SERIES C
Nov 2021
$32m
SERIES B
Total funding: $77m
Company benefits
- Equity
- Unlimited vacation, with a minimum vacation days target
- Remote-first: we work asynchronously and respect time-zone differences
- MacBook (you get to keep it after 3 years)
- A small team with a lean hierarchy where you can make a real impact in shaping the company
- Company meet-ups once a year (we went to Mexico City in 2023!)
- Smaller group meet-ups throughout the year
- $600 yearly budget that you can spend to learn new stuff
- Personal development: we give you the freedom to grow and experiment, work on open-source projects and try new things and ideas
Company HQ
Little Italy, Chicago, IL
Leadership
Valentin Vasilyev
(CTO)Valentin worked as a Software Engineer for the first 9 years of their career, before Team Lead roles at Evrone and Machinio.com. They left this role in March 2019 to co-found Fingerprint the following month.
Dan Pinto
(CEO)Previously co-founded Machino, where they were CTO, and has experience in Software Engineering.
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