Full-Stack Engineer (NestJS/Next.js)

Location: Remote; candidates must be located in Europe or Ukraine

Engagement: Full-time, long-term

English: Upper-Intermediate+

Company

hirify.global is delivering an end-to-end AI-driven recruitment SaaS platform for a client, covering job intake and posting, semantic candidate evaluation, recruiter communication, interviews, negotiation, onboarding and payroll.

What you will do

• Implement authentication, role management, subscriptions, payments, RBAC/ABAC and multi-tenant boundaries using OAuth 2.0, OIDC and Microsoft Entra ID.
• Build reusable TypeScript components, SSR/CSR interfaces, state management, responsive accessible UI, data-heavy forms, tables and document views.
• Develop modular NestJS services with validation, business rules, authorization and versioned API contracts.
• Design PostgreSQL schemas, migrations, constraints, indexes, transaction handling, concurrency controls, audit history, imports and reconciliation.
• Build message-queue and durable-workflow processes with transactional outbox, idempotency, retries, dead-letter queues, replay, timers and approvals.
• Integrate job platforms, external APIs, webhooks and Python AI services; write tests and support code review, CI, observability, load testing, UAT and production.

Requirements

• 4+ years of commercial experience as a Full-Stack Engineer.
• Strong TypeScript, Node.js and NestJS skills, with deep expertise in React and Next.js.
• Strong PostgreSQL skills including transactions, concurrency, query optimization and migrations.
• Hands-on experience with REST APIs, webhooks, message queues and failure handling in distributed systems.
• Experience building secure multi-user, multi-tenant SaaS applications.
• Solid understanding of OAuth 2.0 and OpenID Connect.
• Hands-on experience with unit, integration and end-to-end automated testing.
• Practical Docker experience.

Nice to have

• Azure services including Service Bus, Blob Storage, Managed Redis and API Management.
• Microsoft Entra ID, Prisma and GraphQL.
• Temporal or another durable workflow engine.
• Experience integrating Python services.
• Azure AI Search or OpenSearch.
• RDF or SPARQL.

Culture & Benefits

• Remote work with a flexible schedule.
• Vacation of up to 20 working days, 10 working days of sick leave and national holidays as time off.
• Competitive salary with regular reviews.
• Direct cooperation with the customer in a low-bureaucracy environment.
• Challenging projects across diverse business domains and technology stacks.
• Online team-building events and communication with senior-level specialists.