Senior Fullstack Engineer - TypeScript / Next.js / Supabase

Posted Yesterday
7 Locations
In-Office or Remote
Senior level
HR Tech • Software
The Role
Build and maintain features across multiple SaaS products with a primary focus on an AI sales intelligence platform. Develop React/Next.js UIs, API routes, webhooks, background jobs, and database schemas (Postgres/RLS). Integrate third-party APIs, ensure reliability with tests, and work in an async, documentation-driven remote environment.
Summary Generated by Built In
About Huzzle

At Huzzle, we connect exceptional talent with top opportunities at leading companies across the UK, US, Canada, Europe, and Australia. Our clients include startups, digital agencies, and tech platforms in industries such as SaaS, MarTech, FinTech, and HealthTech. Unlike an outsourcing agency, we place you directly with a client where you’re hired in-house as a valued member of their team.

About the Company

Our client is a fast-growing technology company building multiple SaaS platforms across AI, healthcare, and data intelligence. Their core product is a multi-tenant AI-powered platform designed to enhance sales intelligence and call analysis, alongside a HIPAA-aware healthcare portal and a growing audience intelligence platform.

They operate in a highly technical, product-driven environment focused on scalability, clean architecture, and efficient execution.

Role Type: Full-time

Engagement: Independent Contractor

Job Summary

We are hiring a Full-Stack Software Engineer to work across multiple SaaS applications, contributing to feature development, integrations, debugging, and backend systems.

This is a high-impact remote engineering role where you’ll split your time across products based on sprint priorities, with a primary focus on an AI-driven platform. You’ll be responsible for executing scoped tasks with precision while also contributing to more complex systems and integrations.

Key Responsibilities
  • AI Sales Intelligence Platform (Primary Focus – ~70%)
    • Build and implement features from architectural specifications
    • Develop modern UI components, dashboards, and workflows using React and Next.js
    • Build and maintain API routes with validation, pagination, and error handling
    • Debug and maintain third-party integrations and APIs
    • Implement webhook pipelines and asynchronous data workflows
    • Manage background jobs and workflow orchestration
    • Contribute to database design, migrations, and row-level security (RLS) policies
    • Write unit and integration tests to ensure system reliability
  • Healthcare B2B Platform (~30%)
    • Develop onboarding flows and role-based interfaces
    • Build and maintain authentication systems
    • Integrate with third-party healthcare and pharmacy APIs
    • Implement validation, audit logging, and compliance-aware features
    • Troubleshoot bugs and improve system workflows
  • Additional Product Work (As Needed)
    • Support feature enhancements and maintenance for a stable audience intelligence platform
  • General Responsibilities
    • Execute development tasks with high reliability and attention to detail
    • Collaborate through Git-based workflows, PR reviews, and structured documentation
    • Troubleshoot API, integration, and system-level issues
    • Use AI tools to improve development efficiency and output quality

RequirementsCore Technical Skills
  • 2–4+ years of experience with TypeScript (strict mode, generics, strong typing)
  • Strong experience with Next.js (App Router, API routes, middleware)
  • Proficiency in React with modern component architecture
  • Solid experience with PostgreSQL (queries, joins, schema design, RLS)
  • Experience with Supabase or similar BaaS platforms (auth, database, storage, edge functions)
Technical Experience
  • REST API integrations and debugging
  • Handling third-party API inconsistencies and failures
  • Webhooks and asynchronous data processing
  • Background jobs and workflow orchestration
  • Git workflows (feature branches, pull requests, code reviews)
Nice to Have
  • Experience with multi-tenant SaaS platforms
  • Exposure to AI or voice-based systems
  • Experience working with HIPAA-compliant or regulated environments
  • Strong understanding of system design and integration patterns
How You’ll Work
  • Async-first communication environment
  • Documentation-driven development
  • All code reviewed via pull requests before merging
  • Strong focus on clean, reliable execution over unnecessary complexity
  • Collaborative team culture with encouragement to ask questions early
Growth Opportunity
  • Increased ownership across systems and architecture
  • Opportunity to lead projects and step into senior responsibilities
  • Exposure to multiple SaaS products across AI, healthcare, and data platforms
Ideal Candidate
  • Detail-oriented and highly reliable
  • Strong problem-solver, especially in debugging complex systems
  • Comfortable working independently within structured systems
  • Clear and proactive communicator
  • Able to balance speed with high-quality output

Benefits

💰 Competitive salary based on experience and region

🌎 Fully remote role with flexible working environment

🚀 Work on cutting-edge AI and multi-product SaaS platforms

📈 Long-term growth with opportunities for leadership and ownership

🧠 Exposure to complex systems, integrations, and scalable architectures

🎯 High-impact role contributing directly to product development

Skills Required

  • 2-4+ years of experience with TypeScript (strict mode, generics, strong typing)
  • Strong experience with Next.js (App Router, API routes, middleware)
  • Proficiency in React with modern component architecture
  • Solid experience with PostgreSQL (queries, joins, schema design, RLS)
  • Experience with Supabase or similar BaaS platforms (auth, database, storage, edge functions)
  • REST API integrations and debugging experience
  • Experience handling webhooks and asynchronous data processing
  • Experience with background jobs and workflow orchestration
  • Proficient with Git workflows (feature branches, pull requests, code reviews)
  • Experience with multi-tenant SaaS platforms
  • Exposure to AI or voice-based systems
  • Experience working with HIPAA-compliant or regulated environments
  • Strong understanding of system design and integration patterns
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The Company
113 Employees
Year Founded: 2020

What We Do

Huzzle is an end-to-end AI recruiter that connects world-class experts and sales talent from emerging economies with AI labs, startups, and enterprises. The platform uses an AI recruiter to source, vet, and match top global talent with full-time remote roles, specifically focusing on high-performing professionals and providing efficient hiring and payroll solutions.

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