Senior Fullstack Engineer – TypeScript, Next.js, Supabase

This is a fully remote position, open to applicants in Bosnia and Herzegovina.

📋 Description

• **Key Responsibilities**

• - **AI Sales Intelligence Platform (Primary Focus – ~70%)**

• - Design and implement features based on architectural specifications

• - Create modern UI components, dashboards, and workflows utilizing React and Next.js

• - Develop and maintain API routes with validation, pagination, and error handling

• - Diagnose and manage third-party integrations and APIs

• - Set up webhook pipelines and asynchronous data workflows

• - Oversee background jobs and workflow orchestration

• - Contribute to database design, migrations, and row-level security (RLS) policies

• - Write unit and integration tests to assure system reliability

• - **Healthcare B2B Platform (~30%)**

• - Create onboarding processes and role-based interfaces

• - Develop and manage authentication systems

• - Integrate with third-party healthcare and pharmacy APIs

• - Implement validation, audit logging, and compliance-aware features

• - Diagnose bugs and enhance system workflows

• - **Additional Product Work (As Needed)**

• - Assist in feature improvements and maintenance for a stable audience intelligence platform

• - **General Responsibilities**

• - Perform development tasks with high reliability and meticulous attention to detail

• - Collaborate using Git-based workflows, PR reviews, and structured documentation

• - Troubleshoot API, integration, and system-level challenges

• - Leverage AI tools to enhance development efficiency and output quality

⛳️ Requirements

• **Core Technical Skills**

• - 2–4+ years of experience with **TypeScript** (strict mode, generics, strong typing)

• - Extensive experience with **Next.js** (App Router, API routes, middleware)

• - Proficient in **React** with modern component architecture

• - Solid background with **PostgreSQL** (queries, joins, schema design, RLS)

• - Experience with **Supabase** or comparable BaaS platforms (auth, database, storage, edge functions)

• **Technical Experience**

• - Proficient in REST API integrations and debugging

• - Experience handling third-party API inconsistencies and failures

• - Knowledge of webhooks and asynchronous data processing

• - Familiarity with background jobs and workflow orchestration

• - Experience with Git workflows (feature branches, pull requests, code reviews)

• **Nice to Have**

• - Experience with multi-tenant SaaS platforms

• - Exposure to AI or voice-driven systems

• - Experience working within HIPAA-compliant or regulated environments

• - Strong understanding of system design and integration patterns

🏝️ Benefits

• 💰 Competitive salary based on experience and region

• 🌎 Fully remote role with a flexible working environment

• 🚀 Engage with cutting-edge AI and multi-product SaaS platforms

• 📈 Opportunities for long-term growth with prospects for leadership and ownership

• 🧠 Gain exposure to complex systems, integrations, and scalable architectures

• 🎯 High-impact role contributing directly to product development