Backend / API Developer (TypeScript, NestJS, PostgreSQL, AWS)

We are looking for a Backend / API Developer to join a long-term international project focused on building a modern operations and logistics management platform.

The product aims to centralize operational workflows, automate data exchange between multiple business systems, and provide real-time visibility into orders, deliveries, tracking, and customer operations. The platform is being built using a modern cloud-based architecture with a strong focus on scalability, integrations, and data reliability.

You will play a key role in designing backend services, building integrations, developing data synchronization processes, and supporting the evolution of the platform architecture.

Responsibilities

• Design, develop, and maintain backend services and APIs.
• Build integrations with external systems through REST APIs and Webhooks.
• Design and extend relational database structures and backend data models.
• Implement data synchronization between multiple business platforms.
• Develop business logic supporting operational workflows.
• Build solutions for tracking, status management, and operational visibility.
• Participate in architecture discussions and technical planning.
• Collaborate closely with Frontend Developers and Cloud Engineers.
• Ensure performance, reliability, and maintainability of backend services.

• Document technical solutions and support knowledge transfer within the team.

   

Required Technical Experience

• 4+ years of commercial Backend Development experience.
• Strong commercial experience with TypeScript and Node.js.
• Hands-on experience with NestJS.
• Strong expertise in PostgreSQL and relational database design.
• Deep understanding of SQL, query optimization, and database performance.
• Experience working with Prisma ORM or similar ORM frameworks.
• Strong experience designing and developing REST APIs.
• Hands-on experience integrating third-party services through APIs.
• Practical experience with Webhooks and event-driven architectures.
• Experience building and maintaining data synchronization processes between multiple systems.
• Experience working within AWS-based environments.
• Experience with Redis or similar caching technologies.
• Experience writing automated tests using Jest and/or Supertest.
• Strong Git/GitHub experience.
• Understanding of CI/CD principles and deployment workflows.

• Ability to work with complex operational and business data models.

   

Nice to Have

• Experience with AWS RDS PostgreSQL.
• Experience with ECS, Fargate, EC2, S3, ECR, or ElastiCache.
• Experience building internal operational platforms or workflow management systems.
• Experience working within logistics, transportation, fulfillment, or supply-chain domains.
• Experience with high-load distributed systems.

• Understanding of cloud-native architectures and scalable backend solutions.

   

Soft Skills

• Strong problem-solving skills and system thinking.
• Ability to understand complex and evolving business workflows.
• Strong communication skills and ability to collaborate across teams.
• Ability to explain technical decisions and architectural trade-offs.
• Ownership mindset and proactive approach.
• Strong documentation habits.
• Practical engineering mindset focused on delivering business value without unnecessary over-engineering.

What’s In It for You?

• Career Growth — Opportunities to develop and advance.
• Performance Reviews — Regular feedback and support.
• Work Anniversaries — Special gifts to celebrate milestones.
• Flexible Work — Hybrid or remote (Lviv office available).
• Mentorship — Guidance from experienced professionals.
• Accounting Support — We handle the paperwork.
• Paid Time Off — 18 vacation days + 5 sick days per year.
• Extra Leave — 10 additional days off annually.
• Free Office Lunches — Enjoy meals on us.
• Team Events — Gatherings, gifts, and a welcoming atmosphere