Senior Python Developer
Primary stack
Nice to have's
Job description
About the Position
ELEKS Software Engineering and Development Office is looking for a Senior Python Developer in Ukraine.
About Project
Our client is building and integrating a solution for a large-scale mission-critical data platform.
Responsibilities
- Design, develop, and integrate Python services within a large-scale mission-critical situational-awareness platform
- Build secure, production-ready APIs and backend components using suitable Python frameworks
- Design reliable data-processing workflows for transactional, analytical, and geospatial workloads
- Work with PostgreSQL, PostGIS, Redis, and analytical or NoSQL data stores
- Implement asynchronous and event-driven processing using workers, queues, and message brokers
- Address concurrency, data consistency, idempotency, and service-failure scenarios
- Integrate OAuth2-based authentication and external identity providers
- Maintain automated tests, observability, Docker-based environments, and CI/CD pipelines
- Participate in system design, architectural decision-making, performance optimization, and production troubleshooting
Requirements
- 7+ years of hands-on commercial experience with Python in production environments
- Strong knowledge of Python fundamentals and the standard library, including concurrency, threading, multiprocessing, and asynchronous I/O
- Experience designing and developing service-oriented or microservice-based architectures
- Strong SQL and PostgreSQL knowledge, including transactions, locking, isolation levels, indexing, and query optimization
- Solid understanding of database and distributed-system concepts, including OLTP vs. OLAP, ACID, CAP, consistency, idempotency, and failure handling
- Experience building secure, production-grade APIs
- Hands-on experience with Redis, asynchronous workers, and message brokers
- Practical experience with Docker, CI/CD, automated testing, logging, monitoring, and performance profiling
- Strong system design skills and readiness to discuss architectural decisions during the technical interview
- Ability to work independently, solve complex engineering problems, and clearly explain technical decisions
- Upper-Intermediate or higher English proficiency
Nice to Have
- Experience with PostGIS, GeoPandas, geospatial data pipelines, or Geo OLAP workloads
- Experience with real-time or event-driven systems
- Familiarity with MongoDB, FastAPI, Kubernetes, JavaScript, or React
- Experience developing mapping, logistics, intelligence, or other mission-critical systems
- Hands-on experience with Django or Django REST Framework
We Offer
- Close cooperation with a customer
- Challenging tasks
- Competence development
- Team of professionals
- Dynamic environment with low level of bureaucracy
About the Company
ELEKS is a custom software development company. We deliver value to our clients, thanks to our expertise and experience gained from working as a software innovation partner since 1991.
Our 2000+ professionals located in the Delivery Centers across Eastern Europe and sales offices in Europe and North America, provide our clients with a full range of software engineering services. These include product development, QA, R&D, design, technology consulting, and dedicated teams.
Khrystyna Ivakhiv
Recruiter Contacts
Apply
or refer a friend
Share this vacancy
or refer a friend
© Eleks. This job description was sourced from the employer's public career page. TheJob is not the employer — we index the posting and route candidates to the source. All content rights and hiring decisions belong to the employer.
ELEKS is a Ukrainian IT company that provides software development, consulting, and quality control services.
More at Eleks
All 63 rolesSenior Project Manager (Biopharma)
Eleks · Poland +1
Middle DevOps Engineer
Eleks · Poland +4
Trainee Angular Developer
Eleks · Ivano-Frankivsk +2
Senior Project Manager
Eleks · Poland +1