Web3 JavaScript Senior Jobs in Brazil, LATAM
Browse 1+ Web3 JavaScript Senior Jobs in Brazil, LATAM — updated October 2026.
Latest JavaScript Senior Jobs.
Updated
| Job Title | Company Name | Salary | Location | Tags | Posted | |
|---|---|---|---|---|---|---|
| Kraken | React NativeMobileTypeScriptJavaScript | |||||
Past and filled jobs: | ||||||
| TRM Labs | 📍 Brazil, LATAM | Web3DeveloperEngineering | ||||
Software Engineer II - React Native - Krak
Sep 09, 2026
Building the Future of Open Finance
Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system.
Before you apply, we encourage you to explore our culture page to understand what drives us and how we work.
The team
Founded in 2011, Kraken is one of the world's longest-standing crypto platforms, trusted by over 10 million individuals and institutions across the globe. It offers spot trading, margin, futures, staking, and OTC services, with products built for both individual investors and institutional clients.
We're looking for a React Native engineer to join a cross-functional Consumer pod focused on building and scaling core Krak experiences. You'll build alongside Product, Frontend and Backend Engineers in your pod, delivering seamless, performant user experiences across our Krak app, holding the features you ship to a high bar for UX, technical quality, and reliability. It's an opportunity to build high-impact, consumer-facing functionality used daily by a global user base.
The opportunity
Design, develop, and maintain high-quality mobile applications using React Native and TypeScript
Own the end-to-end delivery of assigned Krak features, from technical design through release and post-launch iteration
Build screens and components that are maintainable, performant, and resilient, applying established architecture and design patterns
Write clean, well-tested code and take an active part in code review, applying the team’s engineering standards consistently
Contribute to technical design discussions within your pod, raising clear proposals and trade-offs for the work you own
Work closely with Product Managers, Designers, and the Rust backend engineers in your pod to deliver features with measurable customer value
Help improve code quality, shared components, and tooling across the Krak mobile codebase, keeping current with the React Native ecosystem
What you bring
3+ years of experience in software development, with a focus on web or mobile applications
Solid working knowledge of JavaScript/TypeScript and hands-on experience building with React Native
Experience integrating and consuming APIs, with attention to security and performance on mobile
Experience with frontend testing frameworks and modern front-end build pipelines and tooling
Strong understanding of UI/UX best practices, empathy for the customer, and a passion for building intuitive, performant consumer experiences
Strong written and verbal communication skills in English
Nice to haves
Familiarity with native mobile app development (iOS/Android)
Experience developing micro interactions and animations in React Native
Experience with Next.js and WebSockets
Experience within a large technology organization or fast growing startup
Hands-on experience in consumer payments, crypto or fintech mobile applications
Working knowledge of Rust (or similar languages such as Go or C++), and familiarity with async architectures, APIs, and microservices
Experience building large-scale consumer or financial products
Contributions to open-source or the broader engineering community
Unless 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.
Our commitment
Payward is powered by people from around the world and we celebrate the diverse talents, backgrounds, contributions, and unique perspectives that everyone brings to the table. We hire based on merit, seeking out people with the right abilities, knowledge, and skills 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 knowledgeable about crypto.
We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Results are considered alongside experience and interviews, and are not the sole basis for any employment decision.
As an equal opportunity employer, we don't tolerate discrimination or harassment of any kind, whether 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.
Stay connected