Senior Backend Engineer — Build Scalable Event APIs Hybrid

Vetric; Kraków; Hybrid; PLN 210,000 - 330,000; Full time

Benefits offered by this job

Hybrid work in Kraków

Competitive compensation (UoP or B2B)

High ownership and real impact

English-speaking engineering team

Job summary

Vetric is building a brand-new product in Kraków, seeking a Senior Software Engineer to design and implement scalable backend systems. You will work closely with product and engineering teams in a fast-moving environment, taking ownership from design through production.

The role emphasizes hands-on development in Node.js/TypeScript, strong AWS experience, and a focus on architecture early in the product. You will contribute to a high-society engineering environment with international

Qualifications

• 5+ years of hands-on experience with Node.js and TypeScript in production.
• Strong experience with AWS services (e.g., Lambda, ECS, S3, RDS).
• Deep understanding of system design, scalability, and event-driven architecture.
• Experience with modern testing frameworks (Vitest, Jest, Playwright).
• Excellent communication skills in English.
• Ability to thrive in a dynamic, fast-paced environment.

Responsibilities

• Develop and maintain backend services using Node.js and TypeScript.
• Design and implement high-performance APIs and event-driven architectures on AWS.
• Build scalable, reliable systems capable of handling intensive workloads.
• Lead feature development end-to-end - from design to production.
• Collaborate closely with product and cross-functional engineering teams.
• Mentor teammates and promote best practices in code quality, testing, and security.
• Continuously adapt as the product evolves and new challenges emerge.

Skills

Node.js

TypeScript

AWS

System design

Event-driven architecture

Testing frameworks

English communication

Independent work

Tools

Docker

Kubernetes

CI/CD

Job description

Vetric is building a brand-new product in Kraków, seeking a Senior Software Engineer to design and implement scalable backend systems. You will work closely with product and engineering teams in a fast-moving environment, taking ownership from design through production.

The role emphasizes hands-on development in Node.js/TypeScript, strong AWS experience, and a focus on architecture early in the product. You will contribute to a high-society engineering environment with international