Senior Backend Engineer (Python, Node.js, AWS and DevOps)

Our family-style team is looking for a Senior Backend Engineer to help build and evolve the core of a cybersecurity product. You’ll work on scalable backend systems, lead impactful refactoring across microservices, and make thoughtful architectural decisions with cost efficiency in mind. This role is about ownership, clarity, and long-term technical impact.

About the Role
Our client is a growing Israeli cybersecurity startup looking for an experienced Senior Backend Engineer (with strong DevOps background) to play a key role in shaping its backend architecture.
 

You’ll work primarily with Python and also with Node.js (TypeScript), combining deep backend expertise with solid DevOps experience. Success in this role means deeply understanding system workflows, collaborating across teams, and independently driving improvements that raise the overall engineering quality.

What you’ll do:

• Work closely with engineers, Team Leads, and C-level stakeholders in a highly collaborative, Agile environment
• Take strong ownership of backend systems and mentor other developers
• Build and evolve Python and Node.js (TypeScript) microservices, delivering new features while driving meaningful cloud cost optimization
• Own production systems end to end: monitoring, debugging, performance tuning, and incident handling
• Design and evolve backend architectures with a thoughtful balance of scalability, performance, cost, and long-term maintainability

• Partner with DevOps to continuously improve infrastructure, workflows, and system reliability.

   

What We’re Looking For:

• Strong, hands-on Python experience (must-have, high priority) - building scalable backend systems and APIs
• Solid experience with Node.js (TypeScript)
• Solid understanding of software architecture and distributed systems
• Hands-on with databases and storage: PostgreSQL, MongoDB, Redis, AWS S3, Athena, Kafka, SQS/SNS
• Skilled in testing (unit, integration, e2e) and production-grade DevOps: AWS, Docker, Kubernetes, CI/CD pipelines

• Collaborative, high ownership, and able to mentor other developers while working across teams.

   

Will be a plus:

• Experience with Dagster or similar data orchestration platforms is a plus.

   

Working Style:

• Highly collaborative, working closely with engineers, leads, and stakeholders
• Ticket-based workflow using Shortcut to keep projects organized and transparent
• Startup experience is essential, with the ability to thrive in a fast-paced, dynamic environment

• Take full ownership of features from design to production, ensuring quality and impact.

   

What we offer:

• A really promising long-lasting project (you will be proud of yourself)
• Sane and polite, but effective management
• The best corporate culture (according to our teammates' opinions)
• Competitive salary and other stuff
• Remote work, full time

• Becoming not just another team member, but a part of UKAD with unique value and long-term relationships.

   

Some facts about UKAD to help you make a decision:
During 2022-2025, we only increased cooperation with our foreign partners
UKAD combines benefits of family-sized companies, like no bureaucracy, easy access to the executives, with sustainable growth and vast opportunities
Our company is strong enough to be not just a vendor but a tech partner. We can afford to choose customers that respect developers
UKAD is one of the leading employers in Kharkiv, according to DOU.

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