Senior Fullstack Engineer - TypeScript / Next.js / Supabase
Huzzle
Senior Fullstack Engineer - TypeScript / Next.js / Supabase at Huzzle is a contract role based in Remote · Bosnia and Herzegovina (remote). It was published on 27 July 2026 and was open at last check.
| Role | Senior Fullstack Engineer - TypeScript / Next.js / Supabase |
|---|---|
| Company | Huzzle |
| Location | Remote · Bosnia and Herzegovina (remote) |
| Employment type | Contract |
| Published | 27 July 2026 |
| Status | Open at last check |
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
Requirements
Core 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
Originally posted on Himalayas
Create your free OnJob profile to apply — we'll take you to Huzzle's application after sign-up. · Posted 27 Jul 2026.
Senior Fullstack Engineer - TypeScript / Next.js / Supabase at Huzzle — questions answered
What does the Senior Fullstack Engineer - TypeScript / Next.js / Supabase role at Huzzle pay?
Huzzle does not publish a salary on this Senior Fullstack Engineer - TypeScript / Next.js / Supabase listing, so OnJob shows no figure for it rather than an estimate. For what this role pays across the market, the OnJob salary guides aggregate the live listings that do disclose pay.
Is the Senior Fullstack Engineer - TypeScript / Next.js / Supabase role at Huzzle remote?
Yes — Huzzle advertises this Senior Fullstack Engineer - TypeScript / Next.js / Supabase role as remote, tied to Remote · Bosnia and Herzegovina, and it is listed as contract work. Remote terms come from the employer's own posting, so confirm the expected working hours, timezone and any on-site days with Huzzle before you apply.
Is the Senior Fullstack Engineer - TypeScript / Next.js / Supabase role at Huzzle still open?
The Senior Fullstack Engineer - TypeScript / Next.js / Supabase posting at Huzzle was open at OnJob's last check of the employer's careers page, having been published on 27 July 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Senior Fullstack Engineer - TypeScript / Next.js / Supabase role at Huzzle?
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