Senior Full-Stack Engineer for Fintech MVP Lead

Twine; New Zealand; On-site; NZD 120,000 - 180,000; Full time

Job summary

Twine is seeking a senior full-stack engineer to deliver a production-quality MVP for a consumer financial app. You will transform a product vision into a scalable solution, enabling users to connect accounts, gain insights, and act on opportunities.

You will review the existing codebase, align implementation with product decisions, and lead the development with a small team, using React Native/Expo, Node.js, PostgreSQL, and Flinks for integrations.

Qualifications

• Senior lead for fintech app development with MVP delivery.
• Expertise in React Native/Expo, Node.js, and PostgreSQL.
• Knowledge of data privacy, consent management, and auditing.
• Experience integrating third-party APIs (e.g., Flinks).
• Ability to review and align code with product vision.

Responsibilities

• Lead the end-to-end development of a consumer financial app MVP
• Review and align repository and requirements with product vision
• Implement secure sign-in, consent capture, and account connection via Flinks
• Develop account-data ingestion, event, and audit recording features
• Oversee mobile onboarding and user experience flows
• Integrate third-party APIs and ensure privacy and regulatory compliance
• Establish and maintain code review, testing, and documentation processes
• Prioritize MVP features and manage timelines for the 90-day delivery
• Collaborate with engineering, QA, and design teams

Skills

Senior full-stack

React Native

Node.js

PostgreSQL

API integrations

Data privacy

Consent management

Audit trails

Leadership

Problem solving

Tools

Flinks

Job description

Twine is seeking a senior full-stack engineer to deliver a production-quality MVP for a consumer financial app. You will transform a product vision into a scalable solution, enabling users to connect accounts, gain insights, and act on opportunities.

You will review the existing codebase, align implementation with product decisions, and lead the development with a small team, using React Native/Expo, Node.js, PostgreSQL, and Flinks for integrations.