Open to opportunities

Denis Malin

@denismalin

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Senior backend engineer building fault-tolerant Python/Go services and AI pipelines.

Georgia

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What I'm looking for

I’m looking for a team where I can own backend architecture end-to-end—building high-throughput async services and shipping AI/LLM integrations that land real product impact, with room to improve reliability, performance, and developer experience.

I’m a Senior Backend Engineer with 10+ years across fintech, insurance, and SaaS, focused on designing fault-tolerant Python/Go services and payment infrastructure that directly supports product outcomes. I’m comfortable owning architecture end-to-end and aligning technical decisions with measurable impact.

Recently, I’ve driven AI/LLM integrations and high-throughput async backends—building document extraction pipelines with Azure Document Intelligence and OpenAI, shipping async FastAPI + PostgreSQL services, and hardening CI/CD with Testcontainers-based integration tests. Earlier roles included building global Stripe payment infrastructure, creating modular fault-tolerant backends with AWS and Pub/Sub, and leading backend modernization for high-load systems handling thousands of requests per second.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

MyDocs

Oct 2025 - Present (8 months)

Designed and shipped the Transfer product end-to-end, including data model, GraphQL API, processing engine, and reporting for an academic document processing SaaS. Built AI-powered extraction pipelines, owned an async FastAPI + PostgreSQL backend with Azure integrations, and hardened CI/CD with Testcontainers-based tests.

Python fastAPI PostgreSQL Azure OpenAI API Docker GitHub Actions Pytest Test Containers

Senior Software Engineer

Kronika.Technology

Apr 2025 - Oct 2025 (6 months)

Designed and built a high-throughput article crawling and scraping microservice for news monitoring. Implemented a multi-strategy scraping engine, ingestion pipelines from sitemaps/RSS/feeds and Telegram, and fault-tolerant task processing with proxy rotation and retries.

Python fastAPI SQLAlchemy Alembic Asyncpg Playwright Crawl4AI Trafilatura BeautifulSoup AWS S3

Senior Software Engineer

Stackt

May 2023 - Feb 2025 (1 year 9 months)

Owned backend architecture and led key technical initiatives across the engineering team. Designed and implemented global payment infrastructure on Stripe, built a fault-tolerant modular backend with FastAPI/PostgreSQL/AWS and Pub/Sub, and developed internal tools with OpenAI integrations.

Python fastAPI Go PostgreSQL AWS Pub Sub Stripe OpenAI Claude Docker

Senior Software Engineer

Lineate

Apr 2022 - Apr 2023 (1 year)

Delivered backend features and integration work across B2B and fintech products, improving infrastructure reliability. Built and maintained a serverless fintech application on Flask + AWS Lambda, implemented corporate portal features, and shipped end-to-end with frontend, product, and QA.

Python Go Django Flask AWS Lambda PostgreSQL S3 Pub Sub Docker Kubernetes

Senior Software Engineer

DomClick

Oct 2018 - Apr 2022 (3 years 6 months)

Led core backend services for high-load platforms supporting Sber’s mortgage workflows and internal systems in a cross-functional team. Designed scalable, fault-tolerant architectures, drove modernization and refactoring of legacy systems, and maintained stable integrations with internal and external partners.

Python Go fastAPI Django Celery PostgreSQL RabbitMQ Kafka Kubernetes Prometheus

Full Stack Developer

Publicis Groupe

Aug 2017 - Oct 2018 (1 year 2 months)

Developed and maintained backend and frontend features for internal CRM and ad automation tools used by marketing teams. Built automation and integration services with major ad platforms, implemented internal SEO/CRM tooling, and worked on data-processing logic for advertising campaigns.

Python Django Flask Celery RabbitMQ Oracle PHP Selenium

PHP Developer

Balt Insurance

May 2016 - Aug 2017 (1 year 3 months)

Built backend systems and data-processing pipelines in a mixed PHP and Python environment for insurance operations. Developed PHP daemons and Python 3 automation utilities with 1C-Bitrix integration, created a government procurement data crawler, and supported Linux-based deployments and scripting.

PHP Python 3 1C Bitrix MySQL Linux FTP