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Senior Front-End Engineer with 6+ years of experience delivering reliable products across retail, fintech, e-commerce, e-learning, healthcare, and affiliate marketing. Rapidly adapts to unfamiliar domains and codebases, owning requirements through implementation, testing, releases, and production support. Strong React + TypeScript/JavaScript background combined with broad engineering skills across UI architecture, REST/API integration, automated testing, CI/CD, cloud tooling, observability, and performance. Known for breaking down complex problems, working independently, collaborating cross-functionally, and guiding maintainable solutions to completion.…Senior Front-End Engineer with 6+ years of experience delivering reliable products across retail, fintech, e-commerce, e-learning, healthcare, and affiliate marketing. Rapidly adapts to unfamiliar domains and codebases, owning requirements through implementation, testing, releases, and production support. Strong React + TypeScript/JavaScript background combined with broad engineering skills across UI architecture, REST/API integration, automated testing, CI/CD, cloud tooling, observability, and performance. Known for breaking down complex problems, working independently, collaborating cross-functionally, and guiding maintainable solutions to completion.

Burak Bal

Front-End Developer, Web Developer, Software Engineer, +2

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Senior Front-End Engineer with 6+ years of experience delivering reliable products across retail, fintech, e-commerce, e-learning, healthcare, and affiliate marketing. Rapidly adapts to unfamiliar domains and codebases, owning requirements through implementation, testing, releases, and production support. Strong React + TypeScript/JavaScript background combined with broad engineering skills across UI architecture, REST/API integration, automated testing, CI/CD, cloud tooling, observability, and performance. Known for breaking down complex problems, working independently, collaborating cross-functionally, and guiding maintainable solutions to completion.…Senior Front-End Engineer with 6+ years of experience delivering reliable products across retail, fintech, e-commerce, e-learning, healthcare, and affiliate marketing. Rapidly adapts to unfamiliar domains and codebases, owning requirements through implementation, testing, releases, and production support. Strong React + TypeScript/JavaScript background combined with broad engineering skills across UI architecture, REST/API integration, automated testing, CI/CD, cloud tooling, observability, and performance. Known for breaking down complex problems, working independently, collaborating cross-functionally, and guiding maintainable solutions to completion.

Available to hire

Senior Front-End Engineer with 6+ years of experience delivering reliable products across retail, fintech, e-commerce, e-learning, healthcare, and affiliate marketing. Rapidly adapts to unfamiliar domains and codebases, owning requirements through implementation, testing, releases, and production support.

Strong React + TypeScript/JavaScript background combined with broad engineering skills across UI architecture, REST/API integration, automated testing, CI/CD, cloud tooling, observability, and performance. Known for breaking down complex problems, working independently, collaborating cross-functionally, and guiding maintainable solutions to completion.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Turkish

Fluent

English

Advanced

Work Experience

Senior Frontend Engineer at Sainsbury's via Cressoft Consultancy

March 1, 2025 - July 1, 2026

Modernized the end-to-end Argos Pay@ Browse kiosk journey (product discovery and comparison through basket, checkout, payment, loyalty, and order confirmation) using React and Electron. Replaced Webpack with Vite, reducing cold-start from ~120s to ~10s. Reworked GitHub Actions and Cypress diagnostics, improving pipeline reliability by cutting runtime from ~15–20 minutes to ~7 minutes while surfacing previously hidden failures. Centralized product, basket, location, quantity, and availability state using React Context and React Query to reduce duplicate API calls and simplify complex fulfillment, stock, and pricing logic. Designed reusable, typed components and hooks for multi-item baskets, stock availability, gift cards, split payments, and loyalty journeys (QR, swipe, and manual entry). Improved typing and maintainability with typed components and automated TypeScript type generation from GraphQL schema. Added production error monitoring and alerting using Sentry and Opsgenie.

Frontend Engineer

October 1, 2023 - December 1, 2024

Created PRDs and translated business requirements into frontend architecture and delivered complex features across coordinated cross-team dependencies. Owned design and implementation of core customer journeys, including application and re-application flows, customer wallet, and broader UX improvements. Automated TypeScript type generation from GraphQL schema to improve type safety and reduce manual data-model maintenance. Expanded a shared Material UI component library to standardize reusable UI across product teams. Owned frontend error monitoring and incident alerting with Sentry and Opsgenie for better production visibility.

Frontend Engineer

July 1, 2022 - October 1, 2023

Delivered reusable, block-based React + TypeScript pages across e-commerce, e-learning, and core product teams within three-month project timelines. Optimized component architecture and performance using reusable components built with TypeScript and Material UI. Raised code quality via peer reviews, refactoring guidance, and hands-on support for other developers. Built unit and integration tests to maintain at least 80% coverage in every file across the application. Improved code health and compliance with maintainability practices using linting and static analysis tooling.

Frontend Engineer

May 1, 2021 - July 1, 2022

Reduced a data-intensive page from 4,000+ lines of code to ~1,000 lines and cut render time from ~600ms to under ~100ms by redesigning caching and visualization logic. Built a reusable component system for controls, dynamic data grid, filters, calendars, lazy loading, and virtualization to improve consistency, customization, and delivery speed. Introduced MobX global state management and separated models, APIs, views, and configuration to improve maintainability and align with SOLID principles. Refactored three of the four most heavily used critical pages and guided other developers through the new architecture and implementation.

Frontend Engineer

March 1, 2020 - April 1, 2021

Delivered features across four concurrent React and MobX products in the affiliate marketing industry. Built a shared internal component library, documented it with Storybook, and covered it with Mocha and Cypress tests to improve reuse and consistency across products.