Senior Full‑Stack Engineer — Remote, Flexible Hours

Cardata; United States; Remote; CAD 120,000 - 180,000; Full time

Benefits offered by this job

Remote work and flexible hours

Mentorship and development

Extended medical & dental benefits

Healthcare spending account

Wellness Spending Account $3,000

EAP Flexible Time Off

Job summary

Cardata is seeking a Senior Full-Stack Engineer to help evolve our Portal, the platform clients use to manage reimbursements, payments, and insurance verification. You’ll own features end to end, collaborating with Product, Design, QA, and subject‑matter experts to deliver fast, intuitive experiences at enterprise scale.

You will work with TypeScript/NestJS/Next.js, PostgreSQL, and a modern stack, applying AI coding agents daily to accelerate development while maintaining high quality and

Qualifications

• 6+ years building modern web applications with React/Next.js and relational databases.
• Deep frontend expertise in React and Next.js, including architecture, state management, and data fetching.
• Experience owning features across the full stack (DB schemas to UI).
• Daily experience using AI coding agents such as Cursor or Claude Code.
• Examples of improving team effectiveness via shared tooling or AI practices.
• Strong engineering fundamentals: clean code, tests, CI/CD.
• Proven track record of improving existing systems while delivering new features.
• Ownership of timelines and outcomes with clear communication.
• Ability to collaborate with Product/Design/SME to shape solutions.
• Production experience handling personal and financial data with access controls.
• Experience with AWS services (Lambda, SQS, SNS) or equivalent in SaaS context.

Responsibilities

• Own features end to end from design through launch and production health.
• Partner with Product and Design to shape scope and break work into increments.
• Build fast interfaces in React/Next.js for enterprise use at scale.
• Improve systems while delivering new capabilities and performance gains.
• Lead technical decisions for owned features including API design and state management.
• Build reusable components and APIs aligned with design system patterns.
• Write and maintain unit, integration, and end‑to‑end tests; review AI‑generated code.
• Use AI coding agents to accelerate prototyping, development, and testing.
• Strengthen engineering standards via code reviews and architecture decisions.
• Protect payment and driver data with secure access and data handling.
• Ensure releases meet quality and performance standards with go/no-go decisions.

Skills

React/Next.js

Full-stack ownership

AI coding agents

Unit/integration testing

Security/data privacy

AWS basics

PostgreSQL/SQL

CI/CD

Design systems

Tools

TypeScript

NestJS

Next.js

Prisma

BullMQ

Redis

Vitest

Playwright

GitHub Actions

Datadog

Flagsmith

Job description

Cardata is seeking a Senior Full-Stack Engineer to help evolve our Portal, the platform clients use to manage reimbursements, payments, and insurance verification. You’ll own features end to end, collaborating with Product, Design, QA, and subject‑matter experts to deliver fast, intuitive experiences at enterprise scale.

You will work with TypeScript/NestJS/Next.js, PostgreSQL, and a modern stack, applying AI coding agents daily to accelerate development while maintaining high quality and