SS — 2026
Senior Frontend Engineer — Istanbul / Europe

Safa Selim — Senior Frontend Engineer

Building enterprise-scale web & mobile platforms.

View selected work Get in touch
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01 — About

I turn sprawling enterprise codebases into structured, scalable systems.

For 7+ years I've shipped performance-critical platforms across European markets — from lifting a 25-domain e-commerce site off legacy JSP to standardizing design systems in Storybook and securing apps with Keycloak. I specialize in Angular, NGRX, and monorepo architecture, and own release management across multi-application environments.

  • ↳Angular v4 → v19 across the full release timeline
  • ↳Monorepo architecture & shared component libraries
  • ↳NGRX state management at enterprise scale
  • ↳Release management for multi-app environments
0+
Years of experience
0
Enterprise apps in one monorepo
0
Country domains shipped
0+
Languages localized
02 — Experience

Seven years, five teams.

adesso Turkeymaterial.one

Nov 2023 — Present

Frontend Developer & Release Manager

Lead frontend development and release management for 10 interconnected enterprise applications in a single monorepo.

  • Own monthly production releases end-to-end, coordinating cross-team cycles for predictable, low-risk delivery
  • Ship scalable features in Angular 19 with NGRX for complex state management
  • Maintain a Storybook component library that standardizes the design system across every app
  • Design and manage shared Keycloak authentication flows spanning multiple applications
  • Raised deployment reliability through structured release processes and tighter cross-team coordination
Angular 19NGRXMonorepoStorybookKeycloak

DigaconDistrelec

May 2022 — Sep 2023

Frontend Developer

Helped migrate a legacy JSP e-commerce platform to Angular 12, modernizing the frontend across 25 country-specific domains.

  • Maintained 20+ localization files powering a multi-market European user base
  • Built reusable components — idle-timeout, dynamic volume pricing, image magnifier, gallery preview — reused across the catalog
  • Kept high-traffic commerce operations smooth across multiple European regions
  • Ran A/B and geo-targeting experiments in Google Optimize to lift engagement and conversion
Angular 12i18nGoogle OptimizeA/B TestingSCSS

Clinerion LTDClinicalTrials Parser

Aug 2021 — May 2022

Frontend Developer

Improved the ClinicalTrials.com criteria parser and the surrounding frontend for clinical research data.

  • Lifted parser accuracy and success rate to 95%
  • Improved processing efficiency and reliability across the data-integration pipeline
  • Integrated the frontend with backend services for consistent, high-performance delivery
  • Delivered enterprise-grade medical data features in cross-functional Agile teams
AngularTypeScriptREST APIsAgile

BluLogix LLCBilling Platform

Jul 2020 — Jun 2021

Frontend Developer

Helped migrate a SaaS billing platform from AngularJS to Angular 10 and built its reusable component library.

  • Moved the codebase from AngularJS to Angular 10 for long-term maintainability and scalability
  • Built a reusable component library that sped up feature delivery and kept the UI consistent
  • Engineered complex dynamic forms with Angular Forms and NGRX for robust state management
  • Designed flexible modal systems for a more usable, consistent interface
AngularJSAngular 10Angular FormsNGRX

Pluscor INC & OrtakEnterprise Apps

Apr 2019 — Jun 2020

Software Developer

Built full-stack apps across web and cross-platform mobile, wiring in third-party APIs end-to-end.

  • Built frontend apps with Angular 8, DevExpress, and Material UI
  • Implemented backend logic in ColdFusion (Lucee) and MSSQL
  • Integrated Google and Microsoft Calendar APIs into scheduling workflows
  • Shipped DHL shipment tracking and automated PDF export
  • Built cross-platform mobile apps with Angular (v4–v6) and Ionic (v3–v4)
Angular 8DevExpressMaterial UIColdFusionMSSQLIonic
03 — Stack

The toolkit.

Angular v2–v20TypeScriptNGRXMonorepo

StorybookKeycloakIonicSCSSComponent-Driven Design

ReduxJavaMSSQLA/B TestingAgile/ScrumMaterial UI

Frontend Technologies

Angular (v2–v20) · TypeScript · JavaScript · HTML · CSS · SCSS · Ionic UI · GWT · Material UI · Bootstrap · DevExtreme

State Management

NGRX · Redux

Architecture

Monorepo · Component-Driven Development

Backend Technologies

ColdFusion · MSSQL · Java · MySQL

Tools

Storybook · Git · SVN

Authentication

Keycloak

Methodologies

Agile/Scrum · Responsive Design · User Experience (UX)

Testing & Optimization

A/B Testing · Google Optimize

Languages

English (Fluent) · Turkish (Native) · Spanish (Intermediate) · Japanese (Basic)

04 — Selected Work

Things I've shipped.

Enterprise platforms where architecture, scale, and release discipline mattered most.

01

material.one

Enterprise monorepo · 10 interconnected apps

Lead frontend development and release management for 10 interconnected enterprise applications in a single monorepo.

  • Own monthly production releases end-to-end for predictable, low-risk delivery
  • Ship scalable features in Angular 19 with NGRX for complex state management
  • Maintain a Storybook component library that standardizes the design system across apps
  • Design and manage shared Keycloak authentication flows across applications
10 appsMonthly releasesStorybook system
Angular 19NGRXMonorepoStorybookKeycloak
02

Distrelec Commerce

JSP → Angular 12 · 25 country domains

Helped migrate a legacy JSP e-commerce platform to Angular 12, modernizing the frontend across 25 country-specific domains for European markets.

  • Maintained 20+ localization files powering a multi-market European user base
  • Built reusable components — idle-timeout, dynamic volume pricing, image magnifier, gallery preview
  • Kept high-traffic commerce operations smooth across multiple European regions
  • Ran A/B and geo-targeting experiments in Google Optimize to lift engagement and conversion
25 domains20+ languagesHigh-traffic commerce
Angular 12i18nGoogle OptimizeA/B Testing
03

ClinicalTrials Parser

Clinical research data · 95% accuracy

Improved the ClinicalTrials.com criteria parser and the surrounding frontend for clinical research data.

  • Lifted parser accuracy and success rate to 95%
  • Improved processing efficiency and reliability across the data-integration pipeline
  • Integrated the frontend with backend services for consistent, high-performance delivery
  • Delivered enterprise-grade medical data features in cross-functional Agile teams
95% parser accuracyAgile delivery
AngularTypeScriptREST APIsAgile
04

BluLogix Billing

AngularJS → Angular 10 · Component library

Helped migrate a SaaS billing platform from AngularJS to Angular 10 and built its reusable component library.

  • Moved the codebase from AngularJS to Angular 10 for long-term maintainability and scalability
  • Built a reusable component library that sped up feature delivery and kept the UI consistent
  • Engineered complex dynamic forms with Angular Forms and NGRX for robust state management
  • Designed flexible modal systems for a more usable, consistent interface
Component libraryNGRX dynamic forms
AngularJSAngular 10Angular FormsNGRX
05 — Contact

Available for senior engineering & release-management roles.

safaselim.ss@gmail.com
Istanbul, Turkey
safaselim.ss@gmail.com
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