Kanat Yessenamanov

@LeningramConnected with DSML

Senior Frontend Engineer

6 years of experience in Frontend development (freelance → Junior Developer at an outsourcing company → Middle Developer at an outsourcing company → Senior Developer in a banking product).

Open to

Mentoring othersCompany partnershipsStartup collaborationJoining pet projects

About

Experience managing two teams of up to 5 people. Primary stack: JavaScript, TypeScript, React, Next.js, along with related libraries and tools. Telegram: @kanatyes

Career

Experience: 6 years

Experience

Senior Frontend Developer

Smartfox

May 2023 — Present

Built banking workflows and a reusable UI kit; reduced bundle size by 75% and load time by 80%.

• Engineered complex banking workflows covering multi-role interfaces, advanced forms, loan calculators, document handling and business-specific calculations. • Enabled real-time communication via WebSockets (Socket.IO) and built complex form workflows with React Hook Form. • Optimized frontend performance, reducing bundle size by 75% and improving load time by 80% for a multi-role banking platform. • Created a reusable company-wide UI kit, establishing a consistent component foundation across the application.

Frontend Developer

Kraud

Aug 2021 — May 2023

Delivered education, geolocation and dispatcher platforms; migrated an education platform to Next.js, reaching a 98 Lighthouse score.

• Built a large-scale educational platform from scratch and brought it to production, serving students across Russia at a federal level. • Migrated the platform from React to Next.js, achieving a 98 Lighthouse score and improving frontend performance. • Built and maintained a geolocation platform for investors, combining Leaflet, MapGL and 360° panoramas with Marzipano. • Enabled real-time voice communication for a dispatcher platform using WebRTC. • Contributed to code reviews, frontend architecture and development standards across multiple projects.

Frontend Developer

KZ Projects

Jun 2020 — Aug 2021

Delivered client projects, including a study platform for 30,000+ users, and handled frontend and backend development on selected work.

• Delivered frontend solutions across multiple client projects, independently taking features from requirements through production. • Built a study platform serving 30,000+ users, including a test constructor, admin panel, online testing system and interactive map with 50+ layers. • Owned both frontend and backend development on selected projects, using React, TypeScript and NestJS to build application features and API services. • Created complex interactive map functionality with Leaflet, combining multiple data layers with location-based visualization.

Education

Bachelor, English Interpreter

Pavlodar State University

2006 — 2010

Selected projects

Educational Platform

Led frontend development of an educational platform with a public portal, student account and administration panel. Migrated the application from React to Next.js, implemented real-time timers, tests and chat with Socket.IO, and coordinated frontend implementation.

Geo-Location Project

Developed a geolocation platform for monitoring construction projects used by 50+ companies. Built interactive maps and coordinate-based visualization, integrated photo, video and 360° panorama content, and contributed to shared architecture in a Lerna monorepo.

Financial Project

Developed frontend functionality for a financial platform supporting loan applications and approval workflows, including loan calculators, date-based business logic, complex forms, document uploads, API integration and client-side caching.

CRM Platform for Dispatchers

Developed a CRM platform for repair-service dispatchers to process calls, messages and citizen requests. Implemented WebRTC communication and request-management workflows that convert incoming requests into repair-service tasks.

CRM Platform for Bankers and Investors

Built a frontend application from scratch, establishing the Vite environment and initial architecture. Developed reusable components and API services, implemented real-time chat and notifications, and set up styling and state-management architecture.

Educational Platform for Students

Developed a study platform used by 30,000+ users, including a test constructor, administration panel, interactive testing functionality and an interactive map with 50+ layers. Also developed backend functionality with NestJS and TypeScript as part of a freelance project.

Skills

JavaScriptTypeScriptReactNext.jsReact NativeFlutterHTML5CSS3SASSGitPlaywrightReact Testing LibraryJestFrontend ArchitecturePerformance OptimizationResponsive DesignAutomated TestingAgileScrumCursor