Middle+ node.js / typeScript backend developer
Back-end Engineer
Available for hire
Years of
experience
9+ years
Experience
level
Senior
Available
for
Full-time, Part-time, Contract, Freelance, Internship
Available from
27 Oct 2026
Backend Developer (Middle+ / Senior) with 9 years of commercial experience. For the past 4 years, specialized in high-load payment infrastructure at 01tech iGaming holding (brands include 1win, Jetton, LuckyStar). Personally integrated 100+ payment solutions across 50+ countries globally. Fluent in technical correspondence, API alignment, and onboarding international PSPs in English
Skills
Employment History
Backend Developer (Payment Integrations) at
01tech
2022
-
2026
100+ Integrations across 50+ Countries: Engineered and integrated payment solutions across Asia (South Korea,
Japan, Philippines, Thailand, Vietnam, Indonesia, Pakistan), Africa (Nigeria, Kenya, Ghana, South Africa, Egypt,
Morocco), CIS, Europe, and LATAM (Mexico, Brazil, Argentina, Colombia).
Architecture Redesign: Played a key role in rewriting the legacy payment gateway (Koa, Node.js) into a new, highly
scalable payment system, seamlessly migrating all existing integrations.
Time-to-Market Reduction: Reduced end-to-end PSP onboarding time from weeks to just a few days through the
new system architecture, driving rapid geographic expansion into new international markets.
Core Payment Services: Designed and maintained high-throughput deposit/payout flows, payment routing logic,
fee computation, and resilient webhook processing under peak load.
Code Quality & Reliability: Conducted strict peer code reviews and deployed production integrations following
rigorous engineering standards. Integrations built or reviewed produced zero critical regressions or financial
losses.
International PSP Onboarding: Independently led all technical communications with international payment
providers in English, covering API specification alignment, integration, onboarding, and production incident
resolution.
Backend Developer at
M-Lombard LLP
2021
-
2021
Mobile App Backend: Built the backend architecture for the new application of Kazakhstan’s largest pawnshop
network from scratch, including auth/registration, payment processing, transaction history, and loan management.
DevOps & Support: Established CI/CD pipelines, supported microservices in production, profiled performance, and
resolved operational bugs.
Backend Developer at
Eurasian Bank JSC
2021
-
2022
Auto Loan Platform Integration: Integrated the bank’s auto financing system with leading auto dealerships across
Kazakhstan (Allur Auto, MyCar, etc.). The bank holds ~50% market share in national auto lending.
Credit Scoring Engine: Developed automated scoring modules evaluating loan applications based on credit history,
family background, and real-time state database queries.
Full-stack / Backend Developer at
Cloudmaker LLP
2017
-
2021
Talent Management Platform (topHR): Co-developed a comprehensive HR-Tech enterprise platform (time tracking,
onboarding, surveys, performance reviews, KPIs, organizational structure).
Core Backend & DB Architecture: Developed Node.js services, designed relational and document database
schemas (PostgreSQL, MongoDB), configured S3 cloud storage, and contributed to JS frontend modules
Education
Bachelor of Computer Science at
International IT University (Almaty, Kazakhstan)
2014
-
2018