Zhangeldy Kuldeyev

Frontend Engineer

eGOV 3.0

Kazakhstan's official e-government platform.

Rebuilding Kazakhstan's e-government portal, contributing to its open-source UI libraries, and starting a service-request module for the mobile app.

• Rebuilding the eGov 3.0 public portal (Kazakhstan’s official e-government platform) on a modern stack, migrating from the legacy version. • Contributed to the open-source @egov3 component libraries that back the platform’s UI (system-design and graphics repositories). • Initialized the new service-request module for the eGov mobile application.

Frontend Engineer

Solventum

A global healthcare company formed from 3M's healthcare business, providing medical products and solutions for clinical care.

Built a clinical data platform and component library, reducing feature development time by 30% and bundle size by 68%.

• Built and maintained a high-load clinical data platform serving thousands of healthcare professionals daily. • Designed a scalable component library built on standalone components that reduced feature development time by 30%. • Containerized frontend services with Docker, improving deployment consistency across environments. • Cut bundle size 68% (2.4MB → 760KB) by refactoring module boundaries and barrel-file exports to enable effective tree-shaking

Frontend Engineer

PokerStars / Flutter Inc

PokerStars is an online poker and gaming brand owned by Flutter Entertainment, a global sports betting and gaming company.

Worked across the React platform and legacy AngularJS code, adding analytics and redesigning signup to improve onboarding and retention.

• Integrated Snowplow analytics tracking, enabling the product team to measure user funnels and optimize conversion. • Redesigned the new-user sign-up flow, reducing onboarding drop-off and improving first-session retention. • Maintained and modernized a legacy AngularJS codebase alongside the React-based platform.

Frontend Engineer

Spirent Communications

Spirent Communications provides test, assurance and analytics solutions for telecom networks, devices and cybersecurity.

Built real-time telecom network dashboards with custom visualizations and reached 90% unit-test coverage.

• Engineered a real-time monitoring dashboard for cellular antenna networks, rendering high-frequency data through custom D3.js and Canvas visualizations. • Reached 90% unit-test coverage across the dashboard component suite. • Customized chart and map libraries to meet complex telecom business requirements.

Frontend Engineer

Kazdream Technologies

Government technology company building inter-departmental communication systems.

Led frontend work on government systems, with measurable improvements to form delivery, runtime errors, and build times.

• Led design and development of an automated inter-departmental government communication system. • Built a reusable Angular component library, improving UI/UX consistency across 5+ government modules. • Refactored and strictly typed existing Angular forms, reducing runtime errors by 25%. • Created dynamic-form components driven by backend JSON schemas, cutting new-form development time in half. • Developed fingerprint-scanner integration services (Idemia SDK) and biometric image processing, reverse-engineering the vendor SDK into TypeScript.

B.S., Computer Science

Nazarbayev University