Senior Full Stack Engineer, Mobile & Web

This is a fully remote position, open to applicants in Portugal, +1 more country.

📋 Description

• Develop comprehensive features ranging from React Native interfaces to Spring Boot services.

• Oversee user experiences for both mobile and web platforms.

• Initiate new market entries and minimize the manual efforts involved in future launches.

• Address specific regulatory, payout, and localization needs for different countries.

• Create and sustain tools to facilitate market launches.

• Engage in managing balances, ledgers, transfers, and reconciliation processes.

• Collaborate with payout partners, KYC vendors, card issuers, and internal systems.

• Focus on automated testing, alerting systems, wallet recovery, and KYC workflows.

• Manage deployment, monitoring, on-call duties, and root cause investigations.

• Equip shipped products with instrumentation and analyze user dropout rates in cash-to-balance conversions.

• Work with teams on the US East Coast schedule through written and asynchronous communication.

⛳️ Requirements

• A minimum of 7 years in developing and delivering production software.

• Proficient in React and React Native.

• Experience in developing and maintaining production mobile applications.

• Proficiency in TypeScript.

• Strong backend engineering skills in Java and Spring Boot, or equivalent experience with a readiness to learn quickly.

• Competence in RESTful API design.

• Experience in relational data modeling.

• Understanding of distributed systems and their potential failure modes.

• Experience with automated testing and CI/CD methodologies.

• Comfortable working with legacy systems and conducting incremental refactoring.

• Ability to work independently in a small, agile team environment.

• Must have the right to work in Germany or Portugal.

• Preferred: experience in payments or fintech at scale, including ledgering, reconciliation, KYC/AML, PCI, and chargebacks.

• Preferred: familiarity with crypto, stablecoins, blockchain payment systems, wallet and custody infrastructure, and smart contracts.

• Preferred: experience in native iOS or Android development alongside React Native.

🏝️ Benefits

• Opportunity for remote work from Germany or Portugal.

• Flexible working hours.

• No relocation necessary.

• No requirement to work from an office.

• Emphasis on asynchronous, written-first communication.

• Experience a startup culture within a global organization.

• Significant influence on product decisions.

• Autonomy and ownership of project outcomes.

• Collaborative afternoons with mornings dedicated to individual tasks.