Senior Fullstack Software Engineer

unybrandsRemote - EU Remote2d ago

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Requirements

7+ years building production web applications
Strong experience in statically-typed languages (Rust, TypeScript, Go, C#, or Java)
Solid background with React or similar modern frontend frameworks
Deep understanding of async programming, concurrency, and distributed system concepts
Experience building and maintaining RESTful APIs
Excellent debugging, communication, and problem-solving skills
Experience with e-commerce APIs (Amazon SP-API, Shopify, etc.)
Background in high-reliability or operational systems
Familiarity with event-driven design, idempotency, and backpressure handling
Experience with GCP, Kubernetes, or container orchestration
Knowledge of durable state management and crash recovery techniques

Design and implement features end-to-end: React UI, backend APIs, async processing, and data persistence
Build and maintain integrations with Amazon SP-API, Shopify, TikTok, and other marketplaces
Architect resilient systems that handle eventual consistency, partial failures, and retry logic
Develop queue-based async flows with robust error handling and correlation tracking
Implement operational features: multi-channel pricing, inventory sync, and order processing
Create real-time dashboards and monitoring tools for visibility and observability
Participate in code reviews, mentor team members, and improve system reliability over time
Technical Stack
Backend:
Rust with Axum (async framework on Tokio)
SQLx for type-safe queries and migrations
Frontend:
React with TypeScript
Vite, Tailwind CSS, Shadcn
Architecture:
Modular monolith with async-first design
Event-driven processing (SQS)
Durable state workflows
Infrastructure:
Infrastructure:
GCP (Cloud SQL, GKE, Cloud Storage)
AWS (SQS for notifications)
Prometheus + Grafana for monitoring

Greenfield Rust platform: Help shape architecture and patterns from day one
Greenfield Rust platform:
End-to-end ownership: From UI to async backend to production deployment
End-to-end ownership:
Challenging problems: Multi-channel synchronization, rate limiting, and distributed reliability
Challenging problems:
High impact: Your work directly supports millions in e-commerce revenue
High impact:
Autonomous environment: Small team with minimal bureaucracy
Autonomous environment:

17h ago