Alexander Rabaev
@alexanderrabaev
Backend engineer specializing in Python and TypeScript, building scalable APIs and production-ready systems.
IsraelWhat I'm looking for
I am a Backend Engineer with five years of professional experience building web applications and APIs using Python (FastAPI, Django, Flask) and TypeScript (Node.js, NestJS). I design and implement microservices, multi-tenant SaaS architectures, event-driven systems, and database-backed solutions (PostgreSQL, MongoDB), and I emphasize automated testing, secure deployments, and clear ownership of production outcomes.
My recent work includes architecting a multi-tenant AI Assistants Platform with async workers, LLM integrations (LangChain, OpenAI), and secure token management, as well as improving test coverage, release confidence, and API performance across multiple companies. I communicate effectively with engineers and stakeholders and ramp up quickly in new domains to deliver measurable improvements.
Experience
Work history, roles, and key accomplishments
Full Stack Engineer
Marguru Ltd
Jul 2024 - Present (1 year 11 months)
Architected and developed a multi-tenant AI Assistants Platform with FastAPI and MongoDB, enabling custom conversational bots for Telegram and WhatsApp and supporting real-time prompt updates via LangSmith.
Backend Engineer
NILOS
Jun 2023 - Jul 2024 (1 year 1 month)
Developed and maintained NestJS backend services delivering 20+ production features, improved test coverage by 40% and reduced incidents by 55%, and tuned database queries to cut endpoint latency by 25%.
Backend Engineer
Mainer, LLC
Mar 2021 - Apr 2023 (2 years 1 month)
Designed and built an internal ERP and logistics system with Flask and PostgreSQL for 100+ users, created 60+ REST APIs and implemented Pytest suites that cut critical production errors by 50%.
Education
Degrees, certifications, and relevant coursework
Developers Institute (Israel)
Full-Stack Developer (Bootcamp), Full-Stack Web Development
2023 - 2023
Attended a Full-Stack Developer bootcamp covering web development technologies and practical project work.
Moscow Aviation Institute (National Research University)
Master of Engineering, Engineering
2018 - 2019
Completed a Master of Engineering program at Moscow Aviation Institute with advanced coursework in engineering topics.
Moscow Aviation Institute (National Research University)
Bachelor of Engineering, Engineering
2012 - 2016
Completed a Bachelor of Engineering program at Moscow Aviation Institute focusing on engineering fundamentals and technical competencies.
Availability
Location
IsraelAuthorized to work in
Job categories
Skills
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