Senior/Lead Python Developer

На данный момент Senior Backend Developer (FinTech).

Мои компетенции и опыт

Senior Backend Developer (Payments & Integrations)

Senior Backend Engineer specializing in payment infrastructure, gateway integrations and high-throughput financial systems.

Experienced in designing integration platforms, optimizing delivery processes and leading the end-to-end implementation of payment providers from technical discovery to production rollout.

May 2024 — Present

ForCode (FinTech)

Design and development of FinTech solutions, payment infrastructure, payment gateways and internal services.

Key achievements

• Built a Cookiecutter-based project generator that reduced new integration development time by approximately 30%.

• Designed an AI-assisted development workflow that reduced the implementation time of a typical payment gateway integration to as little as one business day.

• Took ownership of the company's payment integration stream during a management transition, coordinating requirement analysis, provider communication, prioritization and delivery.

• Successfully launched 23 new payment gateway integrations and continuously maintained the company's payment ecosystem through more than 100 feature enhancements and production improvements.

• Designed and implemented an internal CRM for integration management, streamlining communication between managers, developers and payment providers.

• Developed an in-house payment API and participated in the development of currency exchange services.

• Modernized the CI/CD platform together with the DevOps team, introducing automated quality and security checks while reducing deployment time by 50%.
 

Migrated all CI/CD pipelines together with the DevOps team to a new infrastructure with:

• automated linting;
• unit testing;
• Trivy vulnerability scanning;
• SAST/DAST security analysis.
• deployment time was reduced by approximately 2x;
• infrastructure costs were reduced.
• Created a standardized provider onboarding guide, allowing managers to collect complete technical requirements before development started, significantly reducing clarification cycles.
• Refactored the core integration platform:
  • reduced runtime failures;
  • improved logging and diagnostics;
  • implemented centralized error handling without interrupting running services.

Tech Stack: Python, Django/FastAPI, asyncio, PostgreSQL, Redis, Docker, GitLab CI/CD, REST API, Webhooks, Payment Gateways.

Python Backend Developer

February 2022 — May 2024

Aura X Capital (FinTech)

Project: AURA

• Designed and implemented an off-chain/on-chain wallet transaction system for the TON blockchain.
• Optimized SQL queries and business logic, reducing:
  • initial application loading time from 4s to 1s;
  • Token Rain loading time from 5s to нужен доступ к резюме .
• Improved system reliability by implementing fault-tolerant transaction processing and robust error handling.

Project: DLP

• Designed and implemented an asynchronous transaction processing architecture capable of handling significantly increased workloads.
• Decoupled blockchain interactions from user-facing services using scalable workers and task queues.
• Designed and implemented a state machine for complex deposit and withdrawal workflows.
• Implemented resumable transaction processing with recovery checkpoints after external failures.
• Increased system throughput while significantly reducing operational overhead for the development team.

Project: NDA

• Participated in product roadmap planning.
• Conducted R&D activities to evaluate and introduce new technical solutions.

Tech Stack: Python, FastAPI, PostgreSQL, Redis, Docker, TON Blockchain, AsyncIO, SQLAlchemy, REST API.