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Hi, I’m Alex Sivtsov, a frontend engineer with 5+ years of fintech and crypto experience. I’ve led a small team of engineers, translating business requirements into practical technical plans, and I’ve designed end-to-end platform architectures that span frontend, backend, databases, and cloud infrastructure. I enjoy building scalable frontend systems, introducing design and development best practices, and collaborating with product and back-end teams to ship reliable, user-friendly features. I’ve introduced workflow improvements like Git branching strategies, CI/CD pipelines, and a shared component library that reduced environment setup time and code duplication; I also enjoy optimizing performance and test coverage.…Hi, I’m Alex Sivtsov, a frontend engineer with 5+ years of fintech and crypto experience. I’ve led a small team of engineers, translating business requirements into practical technical plans, and I’ve designed end-to-end platform architectures that span frontend, backend, databases, and cloud infrastructure. I enjoy building scalable frontend systems, introducing design and development best practices, and collaborating with product and back-end teams to ship reliable, user-friendly features. I’ve introduced workflow improvements like Git branching strategies, CI/CD pipelines, and a shared component library that reduced environment setup time and code duplication; I also enjoy optimizing performance and test coverage.

Alex Sivtsov

Front-End Developer, Web Developer, Full Stack Developer, +5

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Hi, I’m Alex Sivtsov, a frontend engineer with 5+ years of fintech and crypto experience. I’ve led a small team of engineers, translating business requirements into practical technical plans, and I’ve designed end-to-end platform architectures that span frontend, backend, databases, and cloud infrastructure. I enjoy building scalable frontend systems, introducing design and development best practices, and collaborating with product and back-end teams to ship reliable, user-friendly features. I’ve introduced workflow improvements like Git branching strategies, CI/CD pipelines, and a shared component library that reduced environment setup time and code duplication; I also enjoy optimizing performance and test coverage.…Hi, I’m Alex Sivtsov, a frontend engineer with 5+ years of fintech and crypto experience. I’ve led a small team of engineers, translating business requirements into practical technical plans, and I’ve designed end-to-end platform architectures that span frontend, backend, databases, and cloud infrastructure. I enjoy building scalable frontend systems, introducing design and development best practices, and collaborating with product and back-end teams to ship reliable, user-friendly features. I’ve introduced workflow improvements like Git branching strategies, CI/CD pipelines, and a shared component library that reduced environment setup time and code duplication; I also enjoy optimizing performance and test coverage.

Available to hire

Hi, I’m Alex Sivtsov, a frontend engineer with 5+ years of fintech and crypto experience. I’ve led a small team of engineers, translating business requirements into practical technical plans, and I’ve designed end-to-end platform architectures that span frontend, backend, databases, and cloud infrastructure.

I enjoy building scalable frontend systems, introducing design and development best practices, and collaborating with product and back-end teams to ship reliable, user-friendly features. I’ve introduced workflow improvements like Git branching strategies, CI/CD pipelines, and a shared component library that reduced environment setup time and code duplication; I also enjoy optimizing performance and test coverage.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Russian

Fluent

Work Experience

Frontend Senior Engineer - fintech at Jaznu

September 1, 2025 - Present

Led a team of 3 engineers, breaking down business requirements into technical tasks and driving delivery. Designed end-to-end platform architecture covering frontend, back end, database, and cloud infrastructure. Established development workflow: Git branching strategy, CI/CD pipelines, and component library via Storybook — reduced environment setup time from 2 hours to 15 minutes. Architected and implemented PayPal-based payment and subscription system. Introduced Feature-Sliced Design architecture on frontend, reducing individual component size by up to 50%.

Frontend Senior Engineer - fintech

September 1, 2025 - Present

Led a team of 3 engineers, broke down business requirements into technical tasks, and drove delivery. Designed end-to-end platform architecture covering frontend, backend, database, and cloud infrastructure. Established development workflow: Git branching strategy, CI/CD pipelines, and a component library via Storybook, reducing environment setup time from 2 hours to 15 minutes. Architected and implemented PayPal-based payment and subscription system. Introduced Feature-Sliced Design on frontend, reducing individual component size by up to 50%.

Frontend Senior Engineer - fintech and web3 solutions

September 1, 2025 - Present

Led a team of 3 engineers; broke down business requirements into technical tasks and drove delivery. Architected end-to-end platform architecture covering frontend, backend, database, and cloud infrastructure. Established development workflow: Git branching strategy, CI/CD pipelines, and component library via Storybook — reduced environment setup time from 2 hours to 15 minutes. Architected and implemented PayPal-based payment and subscription system. Introduced Feature-Sliced Design architecture on frontend, reducing individual component size by up to 50%.

Frontend Senior Engineer - fintech and web3 solutions at Wixi Exchange

December 1, 2024 - August 1, 2025

Built the crypto asset deposit interface end-to-end: form flow, validation, real-time status tracking, and error handling. Collaborated with product and backend teams to define technical requirements and align on 10+ API contracts (REST/gRPC). Extracted ~20 shared UI elements into internal library, reducing code duplication by 30% across multiple feature flows. Developed and integrated financial reporting system with PDF/CSV export.

Frontend Middle Engineer - fintech and web3 solutions at GloboGames

July 1, 2021 - November 1, 2024

Consolidated 7 separate client administration applications into a unified dashboard, significantly reducing the daily workload of the operations team. Architected and delivered the frontend for the MVP crypto wallet, enabling the company to obtain 10+ international licenses for cryptocurrency trading. Built a financial data management system for user and transaction data, accelerating management reporting workflows by ~3x. Participated in the development of a payment transaction management system handling multi-currency operations.

Frontend Senior Engineer - fintech and web3 solutions at GloboGames

July 1, 2021 - November 1, 2024

Frontend Engineer - fintech and web3 solutions at GloboGames

July 1, 2021 - November 1, 2024

Frontend Junior- Middle Engineer - medtech solutions at PMT Group

September 1, 2020 - June 1, 2021

Grew the internal React component library by 10%, improving consistency across the platform. Optimised the patient search algorithm by 30% through semantically correct HTML markup and improved query logic. Increased unit test coverage by 15%, reducing regressions in critical user flows.

Frontend Junior-Middle Engineer - med tech solutions at PMT Group

September 1, 2020 - June 1, 2021

Frontend Engineer - medtech solutions at PMT Group

September 1, 2020 - June 1, 2021

Grew the internal React component library by 10%, improving consistency across the platform. Optimized the patient search algorithm by 30% through semantically correct HTML markup and improved query logic. Increased unit test coverage by 15%, reducing regressions in critical user flows.