I am a senior backend engineer with 10+ years of experience designing and delivering scalable web platforms, APIs, and distributed systems using Python, Django, FastAPI, PostgreSQL, Redis, and AWS. I have a strong background in architecture, performance optimization, messaging-based integrations, and cost-efficient cloud infrastructure including serverless. I’m currently expanding my toolkit by learning Go. In my work I own end-to-end backend systems, make technical decisions, and mentor engineers in fast-moving product teams. I thrive in building reliable, scalable services and collaborating across product, design, and frontend teams. I enjoy turning complex requirements into clean, maintainable solutions and mentoring others to grow with the project’s pace and scale.

Maksim Sitnikov

I am a senior backend engineer with 10+ years of experience designing and delivering scalable web platforms, APIs, and distributed systems using Python, Django, FastAPI, PostgreSQL, Redis, and AWS. I have a strong background in architecture, performance optimization, messaging-based integrations, and cost-efficient cloud infrastructure including serverless. I’m currently expanding my toolkit by learning Go. In my work I own end-to-end backend systems, make technical decisions, and mentor engineers in fast-moving product teams. I thrive in building reliable, scalable services and collaborating across product, design, and frontend teams. I enjoy turning complex requirements into clean, maintainable solutions and mentoring others to grow with the project’s pace and scale.

Available to hire

I am a senior backend engineer with 10+ years of experience designing and delivering scalable web platforms, APIs, and distributed systems using Python, Django, FastAPI, PostgreSQL, Redis, and AWS. I have a strong background in architecture, performance optimization, messaging-based integrations, and cost-efficient cloud infrastructure including serverless. I’m currently expanding my toolkit by learning Go. In my work I own end-to-end backend systems, make technical decisions, and mentor engineers in fast-moving product teams.

I thrive in building reliable, scalable services and collaborating across product, design, and frontend teams. I enjoy turning complex requirements into clean, maintainable solutions and mentoring others to grow with the project’s pace and scale.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Fluent
Russian
Fluent

Work Experience

Senior Backend Engineer at BallBall App
October 1, 2025 - April 1, 2026
Architected and delivered the backend for a mobile padel platform using Django and DRF, covering bookings, match workflows, player data, and ranking logic. Built a Go-based booking service integrated with external providers and NATS JetStream, reliably processing 1,000–5,000 messages per minute under production load. Improved backend efficiency through Redis caching and API/data-layer optimization, keeping p95 API latency below 100 ms for user-facing requests.
Senior Backend Engineer at Inita
September 1, 2022 - October 1, 2025
Architected a serverless-first backend on AWS (Lambda, API Gateway, DynamoDB), cutting development spend in early-stage prototyping and accelerating MVP delivery. Led the MCP (Model-Context-Plugin)–driven system enabling automated WordPress site management via a conversational chatbot interface. Implemented an AWS CDK deployment pipeline, reducing deployment time by ~40% and improving reliability across CI/CD processes. Delivered modular image-generation and billing services (OpenAI, Midjourney, Stripe) with queue-based guarantees and international currency support. Mentored two junior developers.
Senior Full-Stack Engineer at Zojax Group
February 1, 2015 - March 1, 2022
Deployed and maintained multiple production-grade projects on AWS, ensuring high availability and scalability. Re-factored monolithic logic into AWS Lambda functions, improving code modularity and reducing server load. Led UI/UX redesigns and acted as liaison between design and engineering teams to ensure seamless implementation. Executed complex data migrations, reducing legacy code and technical debt, and implemented multilingual support and RTL layouts to expand global reach. Improved frontend accessibility to meet ADA/WCAG guidelines.
Senior Full-Stack Engineer at Strategia V.I.C
January 1, 2014 - February 1, 2015
Led monetization efforts that increased revenue in the first month after launch. Improved the mobile version and implemented a responsive layout, boosting mobile user share.
Full-Stack Engineer at Project-Service
February 1, 2012 - January 1, 2014
Automated data-analysis tasks to reduce engineers’ working hours. Built multiple web applications for economic and energy audits. Developed APIs for data exchange between web applications (JSON-RPC, SOAP).

Education

Deep Learning Specialization at Coursera
January 11, 2030 - January 1, 2022
Deep Learning Specialization at Coursera
January 1, 2022 - April 9, 2026

Qualifications

Bachelor of Science in Applied Mathematics
January 11, 2030 - June 1, 2010
Deep Learning Specialization
January 11, 2030 - January 1, 2022
Bachelor of Science in Applied Mathematics
June 1, 2010 - April 9, 2026
Bachelor of Science in Applied Mathematics
January 1, 2010 - April 9, 2026
Deep Learning Specialization
January 1, 2022 - April 9, 2026

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Gaming, Other

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
See more