I’m a senior backend/full-stack engineer with 10+ years of experience building payment, CRM, data, and backend integration systems in healthtech, gaming, and fintech-adjacent environments. My strongest fit is helping companies replace or integrate payment processors such as Stripe, connect payment flows with internal CRMs, customer records, subscriptions, invoices, KPIs, and operational dashboards, and make the backend reliable around webhooks, refunds, reconciliation, error handling, and reporting. At Playbrush/Sunstar in the UK healthtech space, I worked on backend systems involving Stripe, internal CRM, KPI tracking, APIs, and customer/payment-related workflows. I’ve also worked with gaming studios, including AAA-level teams, helping them connect marketing and user behaviour data with payment and monetisation flows through Stripe and other processors. Technically, I work mainly with Python, Django, FastAPI, PostgreSQL, REST APIs, Docker, Kubernetes, AWS, and cloud-based backend systems. I can join as an individual contractor or work B2B, fully remotely, and I’m comfortable starting with a consultation, audit, migration plan, or hands-on implementation.…

Aleksei Kutepov

PRO

I’m a senior backend/full-stack engineer with 10+ years of experience building payment, CRM, data, and backend integration systems in healthtech, gaming, and fintech-adjacent environments. My strongest fit is helping companies replace or integrate payment processors such as Stripe, connect payment flows with internal CRMs, customer records, subscriptions, invoices, KPIs, and operational dashboards, and make the backend reliable around webhooks, refunds, reconciliation, error handling, and reporting. At Playbrush/Sunstar in the UK healthtech space, I worked on backend systems involving Stripe, internal CRM, KPI tracking, APIs, and customer/payment-related workflows. I’ve also worked with gaming studios, including AAA-level teams, helping them connect marketing and user behaviour data with payment and monetisation flows through Stripe and other processors. Technically, I work mainly with Python, Django, FastAPI, PostgreSQL, REST APIs, Docker, Kubernetes, AWS, and cloud-based backend systems. I can join as an individual contractor or work B2B, fully remotely, and I’m comfortable starting with a consultation, audit, migration plan, or hands-on implementation.…

Available to hire

I’m a senior backend/full-stack engineer with 10+ years of experience building payment, CRM, data, and backend integration systems in healthtech, gaming, and fintech-adjacent environments.

My strongest fit is helping companies replace or integrate payment processors such as Stripe, connect payment flows with internal CRMs, customer records, subscriptions, invoices, KPIs, and operational dashboards, and make the backend reliable around webhooks, refunds, reconciliation, error handling, and reporting.

At Playbrush/Sunstar in the UK healthtech space, I worked on backend systems involving Stripe, internal CRM, KPI tracking, APIs, and customer/payment-related workflows. I’ve also worked with gaming studios, including AAA-level teams, helping them connect marketing and user behaviour data with payment and monetisation flows through Stripe and other processors.

Technically, I work mainly with Python, Django, FastAPI, PostgreSQL, REST APIs, Docker, Kubernetes, AWS, and cloud-based backend systems. I can join as an individual contractor or work B2B, fully remotely, and I’m comfortable starting with a consultation, audit, migration plan, or hands-on implementation.

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Skills

Experience Level

Python
Expert
Stripe
Expert
PostgreSQL
Expert
PayPal
Expert
Django
Expert
AWS
Expert
Docker
Expert
Kubernetes
Expert
MongoDB
Expert
Oracle
Expert
GitHub
Expert
JavaScript
Expert
GraphQL
Intermediate
React Native
Intermediate
TypeScript
Intermediate
React JS
Intermediate
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Language

English
Fluent

Work Experience

Lead Software Engineer at Lantern.ai
October 1, 2024 - Present
Refactored the PHP legacy backend using FastAPI and Kubernetes in just 3 months, ahead of schedule. Developed comprehensive CI/CD development processes including unit, functional, and acceptance testing, alongside Kubernetes deployment. Demonstrated strong technical leadership by building a positive team and organizational culture from scratch.
Lead Software Engineer at Sunstar (Playbrush)
October 31, 2024 - July 17, 2025
Developed a robust subscription service integrating Stripe, internal CRM, and KPI tracking using FastAPI, Flask, and Django. Enhanced financial reporting tools for multi-region requirements. Delivered high-quality Python code in a remote team setting while ensuring agile collaboration and performance optimization.
Lead Backend Engineer at nate.tech
December 31, 2022 - July 17, 2025
Architected and implemented a high-performance microservice with FastAPI and async PostgreSQL to modernize inventory management. Achieved a 100× improvement in backend load tolerance by targeted performance optimizations and profiling. Collaborated effectively in a fast-paced startup environment using remote tools and agile methodologies.
Lead Backend Developer at Yobota Limited
August 31, 2022 - July 17, 2025
Designed and delivered projects using Django and Django REST Framework, emphasizing efficient API design and maintainable code. Implemented containerized deployments with Docker and streamlined CI/CD pipelines, boosting development efficiency. Adopted agile, remote-friendly practices to ensure high-quality deliverables.
Lead Backend Developer at Creative Assembly (SEGA Europe)
September 30, 2021 - July 17, 2025
Contributed to backend development for high-traffic game titles, optimizing systems for scalability and performance. Initiated CI/CD processes that increased development speed and reduced critical backlog issues.
Lead Backend Developer at Wargaming LLC
May 31, 2019 - July 17, 2025
Enhanced marketing metrics and optimized ad campaign efficiency by developing robust Python microservices with Kafka and CI tools. Reduced bug backlog by 50% and boosted development speed by 30% through Docker integration and streamlined processes.
Senior Python Developer at LG Cloud Startup (ASD Technologies)
November 30, 2017 - July 17, 2025
Spearheaded the development of a cloud-based storage solution for all LG phones, ensuring scalable and reliable data access. Integrated high-impact projects using Python, Django, and CherryPy to enhance performance and secure data management. Implemented and migrated Infrastructure as Code (IaC) solutions including Puppet and Chef.
Senior Software Developer at TCS USA
May 31, 2012 - July 17, 2025
Enhanced ingress data into Oracle DB for Points Of Interest from third-party providers. Implemented a framework to support multiple weather stations as POI sourcing data from APIs. Introduced custom geospatial indexes and fast NoSQL MongoDB queries to backend API.

Education

MS at NNSU
January 1, 2010 - December 31, 2010

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Gaming, Financial Services, Telecommunications, Consumer Goods
    Stripe Payment & CRM Integration -- sunstargum.com (playbrush.com) / SaaS Backend

    At [SunStar (ex PlayBrush)](https://www.twine.net/signin designed and supported backend integrations connecting payment processing, internal CRM workflows, customer records, reporting, and operational KPIs. Worked with Stripe-style payment flows, webhooks, backend APIs, error handling, and business reporting requirements.