Reficera — A Live Personal Finance App Built Through AI Orchestration
Role
AI Orchestration Engineer
Scope
Full-stack personal finance app
Stack
Next.js 15, React 19, PostgreSQL, TS, Docker
Why Reficera exists
Most personal finance tools are either too bloated — packed with bank sync integrations and features nobody uses — or too manual, demanding spreadsheet discipline to stay consistent. I needed something focused: record income and expenses, set a budget, see where the money goes.
Rather than settling for an imperfect tool, I built Reficera. It became the real-world proving ground for AI orchestration engineering: a production app, live with real users, built entirely by directing AI agents through a structured methodology.
Self-taught foundation
Self-taught, with a focused study of AI-driven development. Every architectural decision — from database normalization to auth flows — was earned through deep research and applied in production.
Efficient solo delivery
One person directing every layer — from the PostgreSQL schema to the containerized deployment pipeline. AI orchestration made it possible to move at a pace that a traditional solo build couldn't sustain.
AI as methodology
Every feature was built through structured AI orchestration: directing agents and sub-agents, preventing hallucinations, managing context, and enforcing quality at every step. Not casual prompting — systematic engineering.
How it was built
Reficera wasn't built by typing prompts and hoping for the best. It followed a structured engineering methodology — the same one applied to every project.
- 1
Planning & Specification
Full scope definition before any code. Every feature, every user flow, every constraint documented and agreed upon upfront.
- 2
Design & Architecture
Database schema, component architecture, API design, and system boundaries established before writing a single line of implementation code.
- 3
Validation
The architecture and spec were validated for coherence, security, and feasibility before moving forward. No assumptions allowed to slip through.
- 4
Execution Through AI Orchestration
AI agents and sub-agents executed the build under constant direction. Hallucinations prevented, context managed, quality enforced at every step — like Tony Stark directing Jarvis: the engineer leads, the AI executes.
Stack & Architecture
For Reficera, the evaluation process pointed to Next.js, React, PostgreSQL, TypeScript, and Docker as the optimal choices — selected for their alignment with the project's requirements around performance, data integrity, and reliable deployments.
Visual Dashboards — Monthly & Annual
The monthly dashboard lets you record income and expenses, edit or delete transactions, and see a visual breakdown of spending by category — including savings rate and available balance. The annual dashboard shows year-over-year trends month by month, giving a clear picture of financial progress over time.
- Monthly: income, expenses, charts, spending breakdown, savings, balance
- Annual: trends and month-by-month comparison
Annual Budget with Custom Subcategories
Set up an annual budget with custom subcategories and estimated amounts — tailored to how you actually spend. Add entries like "Salary", "Rent", or "Food" across structured top-level categories. Transactions are recorded against these categories, and the dashboards reflect how reality compares to the plan.
Bilingual & Built for Real Users
Reficera ships in both English and Spanish with a live language switcher — built for users across markets from day one. Account creation, login, and password recovery are fully supported. Users can edit their profile and change their password directly from the app.
- Full i18n: English and Spanish
- Account creation, login, password recovery & profile
Annual dashboard — KPIs, savings rate by month, year navigation
Budget editor — estimated amounts per subcategory, year selector
Honest scope — what Reficera doesn't have
Reficera is a focused personal finance tool. It doesn't try to be everything. There are no bank connections, no data export, no push notifications, and no automated financial goal tracking. The product solves a defined problem well — and nothing more.
Want to build something like this?
Reficera is proof that AI orchestration engineering delivers real production software. If you have a project that needs that kind of quality and discipline, let's talk.