Senior Full Stack Software Engineer (React / Next.js / TypeScript)

We're looking for a Senior Full Stack Software Engineer to join our product engineering team.

You'll be building and shipping customer-facing features across our modern TypeScript stack,

working closely with product and design, and integrating with a variety of external financial and

business systems.

We're a fast-moving team, so we're looking for someone who enjoys solving real business

problems, writing clean, maintainable code, and taking ownership from idea through

production.

What You'll Be Working With

• TypeScript

• React 19

• Next.js (App Router)

• PostgreSQL + Drizzle ORM

• Supabase

• Tailwind CSS

• shadcn/ui & Radix UI

• Vercel

• Various third-party APIs (payroll, accounting, CRM, lending)

Core Requirements

TypeScript & React (Expert)

• Strong experience building production applications using modern TypeScript and React.

• Deep understanding of React hooks, context, component composition, state

management, and rendering patterns.

• Comfortable working with strict TypeScript typing and designing maintainable, type-safe

codebases.

Next.js (App Router)

Strong understanding of modern Next.js development, including:

• Server Components vs Client Components

• Route Groups

• Route Handlers (app/api)

• Server Actions

• Middleware

• Caching and data-fetching strategies

• Performance optimization

PostgreSQL & ORM

• Experience designing relational database schemas.

• Strong SQL fundamentals.

• Experience using ORMs (Drizzle preferred, Prisma or similar also acceptable).

• Comfortable managing migrations and building reusable data access layers.

Authentication & Authorization

Experience implementing secure authentication flows, including:

• Session management

• Protected routes

• Middleware-based authentication

• Role-based authorization

• User metadata and permissions

Experience with Supabase Auth is a strong plus.

Third-Party API Integration

You'll regularly integrate with external platforms such as payroll providers, CRMs, accounting

software, and lending systems.

You should be comfortable with:

• Reading and implementing third-party API documentation

• OAuth and authentication flows

• Webhooks

• Retry strategies

• Error handling

• Working with unreliable external services

• Building resilient integrations

UI Development

• Build responsive, accessible user interfaces using Tailwind CSS.

• Experience with component libraries such as shadcn/ui, Radix UI, or similar.

• Ability to translate designs into polished production interfaces.

Nice-to-Have Experience

AI / LLM Applications

Experience building AI-powered product features using tools such as:

• OpenAI APIs

• Vercel AI SDK

• Structured outputs with Zod

• Prompt engineering and context construction

We currently use LLMs to power AI-assisted budgeting and financial workflows.

Data Visualization

Experience building dashboards using libraries such as:

• Recharts

• Interactive tables

• Financial reporting interfaces

• Analytics dashboards

Cloud & Deployment

Experience deploying production applications using Vercel, including:

• Environment configuration across multiple stages

• Edge Functions

• Serverless Functions

• Blob Storage

• Redis caching

Fintech / Accounting Domain

Experience working with financial products is a significant advantage.

Familiarity with concepts such as:

• Profit & Loss (P&L)

• Payroll

• Cash Flow

• Financial reporting

• Accounting workflows

What We're Looking For

• Strong ownership mentality and product thinking.

• Comfortable working in a fast-paced startup environment.

• Able to independently investigate problems and propose solutions.

• Excellent communication and collaboration skills.

• Passion for building high-quality software that solves real customer problems.