Senior Software Engineer - Frontend (React/React Native) - Experimentation & Data

Methodfi; Remote; GBP 60,000 - 80,000; Full time

Job summary

A leading crypto company seeks a Frontend Engineer to power their experimentation program. This role emphasizes implementing high-impact experiments and collaborating with product teams for design needs. Ideal candidates should have over 5 years of frontend development experience with significant expertise in React.js and data instrumentation. This position supports data-driven decision-making and helps innovate the crypto and blockchain technology landscape.

Qualifications

• 5+ years of experience in frontend development, especially with React.js and TypeScript.
• Strong understanding of frontend data instrumentation.
• Experience with experimentation or A/B testing systems is preferred.

Responsibilities

• Implement high-impact experiments to drive revenue.
• Support Kraken’s experimentation platform.
• Collaborate with product teams for experiment design needs.

Skills

Frontend development

React.js

TypeScript

Data instrumentation

Debugging skills

Collaboration

Communication skills

Job description

Building the Future of Crypto

Our Krakenites are a world-class team with crypto conviction, united by our desire to discover and unlock the potential of crypto and blockchain technology.

What makes us different?

Kraken is a mission-focused company rooted in crypto values. As a Krakenite, you’ll join us on our mission to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. For over a decade, Kraken’s focus on our mission and crypto ethos has attracted many of the most talented crypto experts in the world.

Before you apply, please read Kraken Culture page to learn more about our internal culture, values, and mission. We also expect candidates to familiarize themselves with the Kraken app. Learn how to create a Kraken account here.

As a fully remote company, we have Krakenites in 70+ countries who speak over 50 languages. Krakenites are industry pioneers who develop premium crypto products for experienced traders, institutions, and newcomers to the space. Kraken is committed to industry-leading security, crypto education, and world-class client support through our products like Kraken Pro, Desktop, Wallet, and Kraken Futures.

Become a Krakenite and build the future of crypto!

Proof of work

The team

The Analysis and Experimentation team is responsible for building and maintaining a scalable, well‑governed analytics and experimentation ecosystem that enables Kraken’s product and platform teams to make confident, data‑driven decisions. Our mission is to ensure that product data and experimental results are accurate, reliable, and actionable, forming a trusted foundation for learning, iteration, and decision‑making across the company.

We work closely with Product, Engineering, Data Engineering, and Analytics to define event standards, improve data quality, and operate Kraken’s experimentation program end‑to‑end. This includes instrumentation, metric definitions, experiment design support, and the reliability of data used to evaluate product changes. Our focus is on creating a transparent, maintainable, and scalable data foundation that allows teams to move fast without compromising rigor.

As a Frontend Engineer on the Analysis and Experimentation team, you will play a central role in powering Kraken’s experimentation program. You will own and evolve the frontend foundations that enable high‑quality experiment instrumentation, consistent metric collection, and trustworthy analysis. Your work will directly impact how product teams design experiments, measure outcomes, and learn from user behavior.

The opportunity

• Implement high-impact experiments and increase the throughput of the experimentation program to directly drive revenue
• Support Kraken’s experimentation platform by enabling reliable exposure logging, metric collection, and experiment guardrails on the frontend
• Partner with Data Engineering and Analytics to ensure experimental data aligns with canonical definitions and supports statistically sound analysis
• Implement validation, monitoring, and alerting to proactively detect issues in experiment and product event data
• Document and evangelize best practices for experimentation and analytics implementation, creating clear guidance for product and engineering teams
• Collaborate with product teams to support experiment design needs, including metric feasibility, instrumentation tradeoffs, and implementation patterns
• Improve and simplify event data flows to reduce redundancy, improve transparency, and lower long‑term maintenance costs
• Contribute to the evolution of Kraken’s experimentation frameworks, enabling faster iteration while preserving analytical rigor

Skills you should HODL

• 5+ years of experience in frontend development with strong expertise in React.js, React Native and TypeScript
• Strong understanding of frontend data instrumentation, event modeling, and client‑side data flows
• Experience supporting experimentation or A/B testing systems, including exposure tracking and metric instrumentation
• Proven ability to debug and resolve data quality issues across complex frontend applications
• Experience collaborating across product, engineering, and data teams to deliver shared platforms or standards
• Clear written and verbal communication skills, especially around technical tradeoffs and data correctness

Nice to haves

• Familiarity with experimentation methodologies, statistical concepts, and common pitfalls in experiment analysis
• Experience with analytics or experimentation tools (e.g., internal platforms, homegrown frameworks, or third‑party solutions)
• Hands‑on experience with frontend testing frameworks and modern build pipelines
• Exposure to large‑scale analytics or experimentation infrastructure
• Understanding of cryptocurrency, blockchain technology, and decentralized applications

If a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis.

Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution.

We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.

Kraken is powered by people from around the world and we celebrate all Krakenites for their diverse talents, backgrounds, contributions and unique perspectives. We hire strictly based on merit, meaning we seek out the candidates with the right abilities, knowledge, and skills considered the most suitable for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgable about crypto!

As an equal opportunity employer, we don’t tolerate discrimination or harassment of any kind. Whether that’s based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status or any other protected characteristic as outlined by federal, state or local laws.

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