Full Stack Engineer Fintech MVP

Join a dynamic project as a senior full-stack engineer to deliver a production-quality MVP for a consumer financial application. This role involves transforming a defined product vision into a robust, scalable solution that enables users to connect their financial accounts, gain insights, and act on financial opportunities. You will be responsible for reviewing the existing codebase and requirements, aligning technical implementation with product decisions, and leading the development process. The tech stack includes React Native/Expo for mobile, Node.js for backend, PostgreSQL for data storage, and integration with third-party APIs such as Flinks. You will also establish best practices for code review, testing, and documentation, while supporting a small team of engineers, QA, and designers. Experience with data privacy, consent management, audit trails, and regulated fintech or open-banking products is highly valued. The project aims for MVP delivery within 90 days.

Responsibilities

Lead the end-to-end development of a consumer financial app MVP

Review and align existing repository and requirements with product vision

Implement secure user sign-in, consent capture, and account connection via Flinks

Develop robust account-data ingestion, event, and audit recording features

Oversee mobile onboarding and user experience flows

Integrate third-party APIs and ensure compliance with privacy and regulatory standards

Establish and maintain code review, testing, and documentation processes

Prioritize MVP features and manage timelines to meet the 90-day delivery goal

Collaborate with engineering, QA, and design team members

Skills And Requirements

Proven experience as a senior full-stack engineer or technical lead, ideally in fintech or open-banking environments

Expertise in React Native/Expo, Node.js, PostgreSQL, and API integrations

Strong background in data modeling, privacy, consent management, and audit trails

Familiarity with regulated financial products and external provider integrations (e.g., Flinks)

Ability to review and enhance existing codebases and documentation

Excellent problem-solving, communication, and leadership skills

Experience establishing practical review, testing, and documentation processes

Ability to work independently and collaboratively within a small, cross-functional team

Availability to deliver MVP within a 90-day timeframe

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