Delivered Flutter mobile experiences and a modular NestJS backend backed by PostgreSQL and Prisma.
Fintech / Full-StackCase study · Mobile & Full-Stack Engineer
Confidential Fintech Platform
A secure finance platform covering onboarding, budgeting, debt payoff planning, ledger tracking, referrals, giveaways, and admin support.
Tests
critical-module testing
Team experience, including partner-led work. The role described here is mobile & full-stack engineer; it identifies the implementation contribution rather than implying sole ownership of the product. For a new engagement, we agree the scope, responsibilities and release criteria before development begins.
01 · The challenge
The product problem
Deliver a broad set of sensitive financial workflows through a maintainable mobile and backend architecture with strong authentication, authorization, validation, and operational visibility.
02 · Engineering
Architecture and implementation
Implemented DTO validation, guards, repositories, JWT refresh tokens, RBAC, password recovery, and SendGrid workflows.
Added request tracing and centralized error handling to improve debugging and production reliability.
Added unit tests for critical modules as part of the wider production-quality effort.
03 · Stack
Technology used
FlutterNestJSPostgreSQLPrisma
04 · Outcomes
Secure role-aware workflows
Testing for critical modules
AWS-ready deployment architecture
Planning a similar product?
Start with your users and one core journey. We can help shape the first release, choose a mobile or web approach, and connect design, engineering and launch support around the same outcome.
Next project
DRUID
Cognitive Assessment