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ELEKS Logo ELEKS · IT - Software Development

Senior Python Developer

Poland; Ukraine, Ternopil · Job Posted July 04, 2026
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Job Description

ELEKS Software Engineering and Development Office is looking for a Senior Python Developer in Poland or Ukraine.\n\nABOUT PROJECT\n\nWe are building and evolving a high-scale B2B SaaS platform that delivers critical insights and functionality to enterprise customers. The project focuses on developing reliable, high-performance backend systems that power core platform capabilities and support data-driven decision-making.\n\nThis is a predominantly backend-oriented role with end-to-end ownership of features, covering system design, service architecture, data flows, and AI-powered capabilities. You will work closely with Product and Engineering teams to build resilient, scalable solutions while contributing to key architectural decisions that shape the future of the platform.

Job Responsibility

  • Design, architect, and implement new features using Python and TypeScript
  • Drive key architectural decisions and contribute to the development of scalable, high-performance, and accessible solutions
  • Apply software engineering best practices, including unit, integration, and performance testing, monitoring, and comprehensive documentation, to ensure system reliability and fault tolerance
  • Continuously evaluate and improve existing applications through code refactoring, performance optimization, and technology modernization
  • Collaborate closely with cross-functional teams across Engineering, Product, Design, and Go-to-Market functions to deliver impactful product capabilities
  • Utilize modern AI-powered development tools to increase delivery efficiency and enhance code quality
  • Participate actively in code reviews, technical discussions, and agile ceremonies while promoting engineering excellence and knowledge sharing
  • Take ownership of core platform components and contribute to the evolution and long-term success of the product and engineering organization

Requirements

  • 7+ years of experience in Python development
  • Hands-on experience with React, TypeScript, and REST APIs
  • Strong AWS expertise
  • Experience working with relational and non-relational databases, as well as message bus systems (RabbitMQ, Kafka, SQS)
  • Strong coding, debugging, and problem-solving skills
  • Excellent communication and collaboration skills
  • Upper-Intermediate (B2) level of English or higher

Nice to have

  • Experience developing AI-powered solutions or working with AI technologies
  • Experience leveraging AI tools to enhance software development
  • Background in customer-facing product development

What we offer

  • Close cooperation with a customer
  • Challenging tasks
  • Competence development
  • Team of professionals
  • Dynamic environment with low level of bureaucracy
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