Full-Stack Engineer (Go + React)

The Vault; Dubai; On-site; AED 350,000 - 550,000; Full time

Job summary

The Vault in Dubai is seeking a senior Go/React engineer to build end-to-end features across Go backend and React frontend. You will design backend services using DDD patterns, implement data models in PostgreSQL, and own REST APIs and admin UI flows.

You should have 5+ years of production systems experience with Go and React, strong PostgreSQL and GORM skills, and a disciplined approach to testing and AI-assisted development.

Qualifications

• 5+ years building production systems with Go and React.
• Strong backend fundamentals: concurrency, APIs, reliability, debugging.
• Hands-on with DDD: model domains and maintain boundaries.
• Strong PostgreSQL skills: schema design, indexing, migrations.
• Experience with GORM (or similar ORM) and SQL when needed.
• Frontend proficiency in React (TypeScript preferred) with admin UIs.
• Good testing discipline (Go tests and integration tests; frontend testing basics).
• Required daily use of AI coding tools with disciplined verification.

Responsibilities

• Build end-to-end product features across Go backend and React frontend.
• Design backend services using DDD patterns (bounded contexts, aggregates, domain events).
• Implement data models and migrations on PostgreSQL, using GORM where appropriate.
• Build and maintain REST APIs and webhooks/event-driven workflows.
• Implement frontend flows in React (TypeScript preferred): dashboards, admin workflows, status lifecycles, audit views.
• Ensure correctness and observability: structured logging, metrics, tracing, and production-ready error handling.
• Contribute to security fundamentals: RBAC, least-privilege access, safe secrets handling, and audit trails.
• Own quality: unit/integration tests, contract tests, and CI pipelines.
• AI-assisted development: use Cursor/Copilot daily to accelerate delivery while verifying outputs.

Skills

Go

React

Backend development

DDD

PostgreSQL

GORM

TypeScript

Testing

AI tools

Tools

GORM

Job description

About us

The Vault, an MPC-based crypto custody platform for institutional and retail customers. We run threshold signing with non-extractable key shares across HSM and Ledger hardware, support a growing surface of chains and assets, and are pushing toward post-quantum readiness and SaaS-grade scale. Series A is ahead, the 2026 productized launch is in flight, and we publish original cryptographic research alongside the product work.

What you’ll do

• Build end-to-end product features across Go backend and React frontend
• Design backend services using DDD patterns (bounded contexts, aggregates, domain events), clean layering, and pragmatic architecture
• Implement data models and migrations on PostgreSQL, using GORM where appropriate (and raw SQL when it’s the right tool)
• Build and maintain REST APIs (and webhooks/event-driven workflows where needed)
• Implement frontend flows in React (TypeScript preferred): dashboards, admin workflows, status lifecycles, audit views
• Ensure correctness and observability: structured logging, metrics, tracing, and production-ready error handling
• Contribute to security fundamentals: RBAC, least-privilege access, safe secrets handling, and audit trails
• Own quality: unit/integration tests, contract tests, and CI pipelines
• AI-assisted development: use Cursor/Copilot (or similar) daily to accelerate delivery, refactoring, and test generation—while verifying outputs and keeping code clean

Must-have experience

• 5+ years building production systems with Go and React
• Strong backend fundamentals: concurrency, APIs, reliability, debugging
• Hands-on with DDD (not just buzzwords): can model domains and keep boundaries clean
• Strong PostgreSQL skills: schema design, indexing, query tuning, migrations
• Experience with GORM (or similar ORM) plus comfort dropping to SQL when needed
• Frontend proficiency in React (TypeScript preferred), including state management and form-heavy admin UIs
• Good testing discipline (Go testing, integration tests; frontend testing basics)
• REQUIRED: confident daily use of AI coding tools (Cursor/Copilot/etc.) with disciplined verification and secure practices

Nice to have

• Event-driven patterns: outbox, retries, idempotency, background jobs
• Experience with RBAC/policy engines, audit logs, fintech/compliance workflows
• Docker/Kubernetes familiarity
• CI/CD ownership (GitHub Actions/GitLab CI), release workflows
• Experience with high-security systems (custody, payments, identity)

Soft skills

• Ownership mindset: deliver features end-to-end with high quality
• Clear communication and ability to work across teams
• Pragmatic: balances long-term design with shipping
• Comfortable in ambiguity and fast iteration