ALEKSANDR EFIMENKO
@aleksandrefimenko
Python backend engineer building APIs and algorithmic optimization systems.
SpainWhat I'm looking for
I’m a Python Software Engineer with 5+ years of backend development experience, focused on building server-side logic, APIs, and business functionality. I’ve developed and optimized production planning features using Django and FastAPI, including algorithmic tasks that improved calculation speed by refining mathematical algorithms.
Across roles, I’ve built backend functionality for production and mobile/workforce systems (1M+ downloads), improved performance by 2x, and refactored legacy components to support evolving product requirements. I enjoy working in cross-functional environments and delivering reliable systems with strong testing, API security, and scalable infrastructure practices.
Experience
Work history, roles, and key accomplishments
Software Engineer (Python)
Redlab
Mar 2024 - Present (2 years 3 months)
Developed backend functionality for algorithmic optimization tasks in a production planning system and refined mathematical models to improve calculation speed for production parameters.
Software Engineer (Python)
Verme
Aug 2022 - Mar 2024 (1 year 7 months)
Built backend functionality for a workforce management mobile application with 1M+ downloads and improved performance of critical application components by 2x. Refactored legacy features and replaced unstable components to support evolving product requirements.
Modified and refactored backend APIs, implemented new functionality with tests, and debugged application issues. Collaborated with backend, frontend, ML, and infrastructure engineers in a cross-functional environment.
Lead Electronic Engineer
Concern Oceanpribor
Nov 2007 - Jan 2021 (13 years 2 months)
Applied engineering solutions that reduced device dimensions, complexity, and equipment cost by 50%, and introduced software tools that accelerated development of new projects by 3x. Presented technical work at scientific conferences.
Education
Degrees, certifications, and relevant coursework
Baltic State Technical University
Electronic Measuring Techniques and Technology
2003 - 2007
Studied Electronic Measuring Techniques and Technology at the Aerospace Faculty from 2003 to 2007.
Saint Petersburg State University of Aerospace Instrumentation
Computing Systems and Networks
1999 - 2003
Studied computing systems and networks as part of the Institute of Computing Systems and Programming from 1999 to 2003.
Availability
Location
SpainAuthorized to work in
Job categories
Skills
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