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:

- Workplace 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.

📌 Senior Full Stack Software Engineer (Canada)
🏢 huumans
📍 Canada