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I’m Anton Kriukov, a senior backend engineer and technical lead focused on building scalable, secure, and high-availability systems for fintech, crypto payments, and compliance-driven identity platforms. Over the past 6+ years, I’ve delivered serverless and microservices backends with Node.js and TypeScript, designing end-to-end payment pipelines, webhook/redirect flows, and robust data/event processing using AWS services like Lambda, DynamoDB, SQS, S3, and Kinesis. I also lead engineering quality and team delivery: translating product and compliance requirements into technical plans, decomposing and estimating work, coordinating dependencies, and running thorough code reviews with an emphasis on clean code, SOLID, KISS, and dependable testing. Alongside that, I’ve implemented KYC/KYT/AML and sanctions/PEP screening workflows (Sumsub and government SSO providers), built user activity monitoring systems from scratch, and contributed to Angular frontend delivery in cross-functional teams.…I’m Anton Kriukov, a senior backend engineer and technical lead focused on building scalable, secure, and high-availability systems for fintech, crypto payments, and compliance-driven identity platforms. Over the past 6+ years, I’ve delivered serverless and microservices backends with Node.js and TypeScript, designing end-to-end payment pipelines, webhook/redirect flows, and robust data/event processing using AWS services like Lambda, DynamoDB, SQS, S3, and Kinesis. I also lead engineering quality and team delivery: translating product and compliance requirements into technical plans, decomposing and estimating work, coordinating dependencies, and running thorough code reviews with an emphasis on clean code, SOLID, KISS, and dependable testing. Alongside that, I’ve implemented KYC/KYT/AML and sanctions/PEP screening workflows (Sumsub and government SSO providers), built user activity monitoring systems from scratch, and contributed to Angular frontend delivery in cross-functional teams.

Anton Kriukov

Back-End Developer, Web Developer, Programmer, +1

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I’m Anton Kriukov, a senior backend engineer and technical lead focused on building scalable, secure, and high-availability systems for fintech, crypto payments, and compliance-driven identity platforms. Over the past 6+ years, I’ve delivered serverless and microservices backends with Node.js and TypeScript, designing end-to-end payment pipelines, webhook/redirect flows, and robust data/event processing using AWS services like Lambda, DynamoDB, SQS, S3, and Kinesis. I also lead engineering quality and team delivery: translating product and compliance requirements into technical plans, decomposing and estimating work, coordinating dependencies, and running thorough code reviews with an emphasis on clean code, SOLID, KISS, and dependable testing. Alongside that, I’ve implemented KYC/KYT/AML and sanctions/PEP screening workflows (Sumsub and government SSO providers), built user activity monitoring systems from scratch, and contributed to Angular frontend delivery in cross-functional teams.…I’m Anton Kriukov, a senior backend engineer and technical lead focused on building scalable, secure, and high-availability systems for fintech, crypto payments, and compliance-driven identity platforms. Over the past 6+ years, I’ve delivered serverless and microservices backends with Node.js and TypeScript, designing end-to-end payment pipelines, webhook/redirect flows, and robust data/event processing using AWS services like Lambda, DynamoDB, SQS, S3, and Kinesis. I also lead engineering quality and team delivery: translating product and compliance requirements into technical plans, decomposing and estimating work, coordinating dependencies, and running thorough code reviews with an emphasis on clean code, SOLID, KISS, and dependable testing. Alongside that, I’ve implemented KYC/KYT/AML and sanctions/PEP screening workflows (Sumsub and government SSO providers), built user activity monitoring systems from scratch, and contributed to Angular frontend delivery in cross-functional teams.

Available to hire

I’m Anton Kriukov, a senior backend engineer and technical lead focused on building scalable, secure, and high-availability systems for fintech, crypto payments, and compliance-driven identity platforms. Over the past 6+ years, I’ve delivered serverless and microservices backends with Node.js and TypeScript, designing end-to-end payment pipelines, webhook/redirect flows, and robust data/event processing using AWS services like Lambda, DynamoDB, SQS, S3, and Kinesis.

I also lead engineering quality and team delivery: translating product and compliance requirements into technical plans, decomposing and estimating work, coordinating dependencies, and running thorough code reviews with an emphasis on clean code, SOLID, KISS, and dependable testing. Alongside that, I’ve implemented KYC/KYT/AML and sanctions/PEP screening workflows (Sumsub and government SSO providers), built user activity monitoring systems from scratch, and contributed to Angular frontend delivery in cross-functional teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Ukrainian

Fluent

Polish

Beginner

Work Experience

Senior Backend Engineer at The Mill (remote)

December 1, 2024 - May 1, 2026

Provided backend engineering contributions as a senior engineer while coordinating delivery across engineering and cross-functional partners. (Detailed responsibilities not specified in the provided resume text.)

Senior Back end Engineer / Technical Lead at The Mill Adventure

December 1, 2024 - May 1, 2026

Technical leadership and backend feature delivery in a cross-functional environment. Own architecture decisions and engineering standards, provide implementation guidance and code reviews, mentor developers, and support complex technical blockers while coordinating delivery risks and dependencies.

Senior Backend Engineer / Technical Lead at S-PRO Node.js Back end Developer (remote)

April 1, 2021 - October 1, 2024

Developed and maintained event-driven serverless payment backends for crypto and fiat using Node.js, TypeScript, and AWS (Lambda, DynamoDB, SQS, S3, Kinesis). Extended payment integrations with Stripe, Revolut Business, Adyen, and PayPal by adding payment methods and resolving production issues, including webhook and redirect flows. Implemented compliance workflows (KYC/KYT/AML/PEP/sanctions) via Sumsub and government SSO providers (ID Austria, BankID, MitID). Designed a user activity monitoring system from scratch with DynamoDB/MongoDB storage, ingestion architecture, and scheduled cron-based processing with provider rate-limit awareness. Built security features including MFA (Twilio SMS, email, authenticator app), session management, user locking, and onboarding flows for a compliance-driven identity platform. Owned code quality improvements (input validation, standardized tests, removal of duplicated logic) and advanced clean-code principles across the team. Participated in client-f

Node.js Back end Developer at S-PRO

April 1, 2021 - October 1, 2024

Developed and maintained serverless event-driven fintech/crypto payment backend using Node.js and TypeScript with AWS (Lambda, DynamoDB, SQS, S3, Kinesis). Implemented payment integrations (Stripe, Revolut Business, Adyen, PayPal) including webhook and redirect flows; built KYC/KYT/AML workflows via Sumsub and government SSO providers (ID Austria, BankID, MitID). Designed and implemented user activity monitoring with DynamoDB/MongoDB ingestion and scheduled processing rate-limit aware providers. Delivered MFA, session management, onboarding, user locking within a compliance-driven identity platform. Improved code quality (input validation, testing, removed duplicated logic) and led backend delivery as technical lead including planning, estimation, and mentoring. Maintained Angular frontend components as part of cross-functional delivery.

Junior Node.js Developer at CubeX / OpenGeeksLab

March 1, 2020 - March 1, 2021

Contributed to backend development under mentorship: wrote unit and integration tests, studied service architecture and third-party integrations, and delivered short-cycle service improvements as part of a junior team.