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Senior Cloud Backend Engineer at Kolomolo | JobVerse
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Senior Cloud Backend Engineer
Kolomolo
Website
LinkedIn
Senior Cloud Backend Engineer
Kraków, Lesser Poland, Poland
Full Time
6 hours ago
No H1B
Apply Now
Key skills
AWS
Cloud
Cypress
Distributed Systems
DynamoDB
JavaScript
Jest
Microservices
Node.js
TypeScript
Supertest
GitLab CI
Lambda
S3
SNS
SQS
API Gateway
GitLab
Agile
Mentoring
Communication
Collaboration
About this role
Role Overview
Build and enhance backend microservices using Node.js and TypeScript
Implement cloud‑native solutions leveraging AWS Lambda, API Gateway, EventBridge, and DynamoDB
Drive improvements in testing quality by adding unit, integration, and performance test coverage
Work on asynchronous and distributed systems, optimizing reliability and event‑driven flows
Collaborate with Architects & SREs to follow security, scalability, and operational best practices
Participate in architectural discussions and contribute to technical decision‑making
Integrate with external partners and vendors across multiple domains
Support continuous delivery processes through GitLab CI and internal automation improvements
Promote high code quality and team collaboration through mentoring and knowledge sharing
Requirements
Production‑level expertise in TypeScript and Node.js
Experience developing and maintaining microservices architectures
Solid understanding of AWS services including Lambda, API Gateway, EventBridge, DynamoDB, S3, SNS, SQS
Proficiency with test automation and the full testing pyramid using Jest, SuperTest, Cypress, and related tools
Experience working in agile, cross‑functional teams and collaborating with product and design
Ability to lead through mentorship, constructive feedback, and technical knowledge sharing
Strong communication skills in Polish and English
A proactive, open‑minded approach focused on delivering business value within distributed systems
Tech Stack
AWS
Cloud
Cypress
Distributed Systems
DynamoDB
JavaScript
Jest
Microservices
Node.js
TypeScript
Benefits
Competitive salary and benefits
Career development opportunities in a growing tech company
Continuous learning culture: mentorship, internal training, and certifications
Flexible, agile work environment (remote, hybrid, or on-site in Kraków)
Office perks: great coffee, tea, fresh fruit, snacks, and a fun atmosphere
Flat management structure, where your voice matters
Regular team events and a social, supportive work culture
B2B contract or Contract of Mandate (Umowa Zlecenie)
Apply Now
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