freiberufler Lead Senior Software Engineer | Senior Web & Mobile Development Specialist auf freelance.de

Lead Senior Software Engineer | Senior Web & Mobile Development Specialist

zuletzt online vor wenigen Stunden
  • auf Anfrage
  • 60311 Frankfurt am Main
  • auf Anfrage
  • uk  |  en  |  de
  • 18.01.2025

Kurzvorstellung

Lead/Senior Software Engineer with over 10 years of experience in web and mobile development across Financial, Pharma, Optical Systems, Optoelectronics, Telecommunications, and more. I specialize in creating scalable, high-performance solutions tailored to your industry’s unique needs. Let’s build your standout digital product together!

Qualifikationen

  • Angular10 J.
  • CSS (Cascading Style Sheet)9 J.
  • HTML59 J.
  • Ionic
  • JavaScript9 J.
  • Lead Developer5 J.
  • React (JavaScript library)8 J.
  • Software Architecture3 J.
  • Softwareentwickler4 J.
  • Typescript10 J.

Projekt‐ & Berufserfahrung

Senior Frontend Engineer
Kundenname anonymisiert, Remote
2/2022 – 6/2022 (5 Monate)
Telekommunikation
Tätigkeitszeitraum

2/2022 – 6/2022

Tätigkeitsbeschreibung

Developing and enhancement customer portal for streaming service and tariffs management of Europe's largest telecommunications company.
Development of cross browser web application with responsive design using React, TypeScript GraphQL
Implementing new features in existing project, performance improvements and bug fixes.

Tech Stack: React, Redux, TypeScript, GraphQL, Unit Testing

Eingesetzte Qualifikationen

Graphql, JavaScript, React (JavaScript library), Typescript, Usability Testing

Lead / Senior Frontend Engineer, mentor
Kundenname anonymisiert, Hessen & Baden-Württemberg
2/2022 – offen (3 Jahre)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

2/2022 – offen

Tätigkeitsbeschreibung

Project Specifics: Internal tool for customers order management, prescription verification, legal compliance, orders processing from creation to production.

The frontend application is built using Angular in a microservice architecture. Each department-specific module is separated in its own Angular library and managed by a separate team. All libraries are ultimately consolidated into a single portal.

Migration of department-specific modules into own libraries, supporting backwards compatibility to previous version and migration to a newer version of Angular
Implementing new features and introducing NGXS Store
Refactoring and performance improvement
Integrating new components, directives and functionality in shared/common library
Implementing pre-release and release strategies for Angular libraries and integration Azure pipelines.
Code reviews

Tech Stack: Angular v13-18, TypeScript, NGXS, NgRx, RxJS, HTML5, SCSS, Azure DevOps

Eingesetzte Qualifikationen

Angular, CSS (Cascading Style Sheet), DevOps, HTML5, Lead Developer, SAS (Software), Software Architecture, Softwareentwickler, Typescript

Full Stack Engineer
Kundenname anonymisiert, Frankfurt am Main
8/2021 – 3/2022 (8 Monate)
Gastronomie
Tätigkeitszeitraum

8/2021 – 3/2022

Tätigkeitsbeschreibung

Development of admin panel for deivers anf fleet management, planning and scheduling delivery slots, shifts as well as data visualization.

Development of hybrid application (web, iOS, Android via Ionic and Angular) for Drivers for time tracking, booking delivery slots and route planning.
Design and develop REST API via Nest.js and PostgreSQL.


Tech Stack: Angular, TypeScript, NgRx, RxJs, Ionic, NestJS, PostgreSQL, Docker, Bootstrap, scss

Eingesetzte Qualifikationen

Angular, Docker, JavaScript, Lead Developer, Postgresql, Software Architecture, Softwareentwickler, Typescript

Frontend development team lead | Senior Frontend Engineer
Horizon, Frankfurt am Main
4/2021 – 2/2022 (11 Monate)
Medienbranche
Tätigkeitszeitraum

4/2021 – 2/2022

Tätigkeitsbeschreibung

Web platform to run customer demand tests for new product before building it. Horizon helps make well-informed development decisions based on behavioural data of a target market. It aggregates all data and displays results in a way that is easy to interpret.

Implementing new features in existing project, refactoring.

Tech Stack: React (v17), Redux, JavaScript, GraphQL , PostCSS

Eingesetzte Qualifikationen

Graphql, JavaScript, Lead Developer, React (JavaScript library), Software Architecture, Software engineering / -technik, Softwareentwickler

Senior Frontend Engineer, mentor
Kundenname anonymisiert, Remote
3/2021 – 9/2021 (7 Monate)
Gesundheitswesen
Tätigkeitszeitraum

3/2021 – 9/2021

Tätigkeitsbeschreibung

A digital platform that helps pig farmers in their daily animal care activities and by that collects and leverages data from different sources including automatic sensors around pig production to improve pig health and productivity.

Project Specifics: Microservice architecture with various components including: Mobile applications developed via Angular in combination with Ionic for iOS and Android devices, Back office, Shared components and services libraries as private packages in NPM registry

Tech Stack: Angular, Ionic, TypeScript, JavaScript, NGXS, Jasmine, RxJS, HTML5, SCSS

Eingesetzte Qualifikationen

SAS (Software), Lead Developer, Typescript, Usability Testing, Angular, CSS (Cascading Style Sheet), HTML5

Team lead | Senior Frontend Engineer
Kundenname anonymisiert, Remote
10/2020 – 6/2021 (9 Monate)
Medienbranche
Tätigkeitszeitraum

10/2020 – 6/2021

Tätigkeitsbeschreibung

Senior Frontend Engineer, responsible for development of Web client application, re-design, integrating REST-API

Digital instruments of foreign investment promotion scheme for ensuring investment guarantees in cooperation with one of the Big Four accounting firms and the mandate of the Federal Government of Germany.

Project Specifics: Web client application and Admin panel, Backend - .NET

Tech Stack: Angular 9-11, TypeScript, JavaScript, RxJS, HTML5, SCSS, Telerik DevCraft

Eingesetzte Qualifikationen

Angular, HTML5, JavaScript, Lead Developer, SAS (Software), Softwareentwickler, Typescript

Team lead | Senior Frontend Engineer
Kundenname anonymisiert, Frankfurt am Main
1/2020 – 8/2020 (8 Monate)
Finanzdienstleister
Tätigkeitszeitraum

1/2020 – 8/2020

Tätigkeitsbeschreibung

Role: Frontend development team lead and Senior Frontend Developer with a central role in project management and client communication.

Gamified compliance assessment tool designed to simplify the compliance management process for digital products

Project Specifics:
Flexible and interactive questionnaire, user flow and screens depend on previous user answers
Design dynamically adapts according to user navigation
PDF report generation using various design templates
Admin area with broad authoring and content management functionalities

Tech Stack: Angular 9, TypeScript, RxJS, HTML, SCSS

Eingesetzte Qualifikationen

Angular, CSS (Cascading Style Sheet), HTML5, JavaScript, JavaScript-Entwickler, Lead Developer, React (JavaScript library), SAS-Programmierer, Typescript

Lead / Senior Software Engineer (Festanstellung)
Requestum, Kharkiv
10/2017 – 10/2020 (3 Jahre, 1 Monat)
IT & Entwicklung
Tätigkeitszeitraum

10/2017 – 10/2020

Tätigkeitsbeschreibung

Developing progressive web application in Angular with REST APIs on client side

Developing single page applications within Angular 5+

Acting as Lead JavaScript Developer to mentor team members and assure software quality

Communicating and negotiating with clients as well as other functional units (UI designers, testers, backend developers)

Developing and maintaining company-wide coding guidelines, patterns and methodology

Eingesetzte Qualifikationen

Angular, CSS (Cascading Style Sheet), HTML5, JavaScript, React (JavaScript library), SAS-Programmierer, Typescript

Frontend Engineer, mentor (Festanstellung)
IT-HIVE LTD, Kharkiv
1/2015 – 10/2017 (2 Jahre, 10 Monate)
IT & Entwicklung
Tätigkeitszeitraum

1/2015 – 10/2017

Tätigkeitsbeschreibung

- Developing single page applications in Angular2+ and integrating 3rd party web services and REST APIs

- Engineering and developing cross browser, responsive and adaptive websites with multi language support including RTL (right-to-left) variant for Hebrew and Arabic languages

- Developing mark-up for custom themes fir WordPress and other CMS platforms

- Maintaining and improving existing web applications

Eingesetzte Qualifikationen

SAS-Programmierer, Typescript, Angular, JavaScript, React (JavaScript library)

Frontend Developer (Festanstellung)
Kundenname anonymisiert, Kharkiv
1/2014 – 9/2015 (1 Jahr, 9 Monate)
Wettbranche
Tätigkeitszeitraum

1/2014 – 9/2015

Tätigkeitsbeschreibung

Developing marketing websites and widgets for software provider specializing in solutions for the betting industry.

Creating new components and microservices to enhance the functionality of the platform via React.js

Integrating REST APIs

Eingesetzte Qualifikationen

CSS (Cascading Style Sheet), HTML5, JavaScript, React (JavaScript library), SAS-Programmierer

Junior Frontend Developer (Festanstellung)
Kundenname anonymisiert, Kiev
6/2013 – 12/2013 (7 Monate)
Telekommunikation
Tätigkeitszeitraum

6/2013 – 12/2013

Tätigkeitsbeschreibung

- Developing promotional landing pages and email templates
- Maintaining and enhance the company website
- SEO optimization

Eingesetzte Qualifikationen

CSS (Cascading Style Sheet), HTML5, JavaScript, Web Entwicklung

Ausbildung

Urban Engineering and Services
Construction Engineer | Specialist degree with distinction
O.M. Beketov National University of Urban Economy in Kharkiv
2014
Kharkiv

Über mich

With a decade of experience in web and mobile development, I excel in delivering robust and maintainable code that elevates digital products to new heights. My technical proficiency encompasses a wide array of technologies, including JavaScript, TypeScript and respective frameworks and libraries such as Angular, React.js, and many more, enabling me to tackle diverse project requirements effectively.

Weitere Kenntnisse

Technical Expertise:

Frontend Development: Skilled in Angular (2+), React.js, Redux, Ionic, HTML5, CSS, and SCSS/SASS, ensuring responsive and user-friendly interfaces.

Backend & APIs: Proficient in Node.js, NestJS, GraphQL, Apollo GraphQL, and REST APIs for creating efficient and scalable server-side solutions.

Testing & Deployment: Experienced with E2E and Unit Testing, Git, GitLab, GitHub, CI/CD pipelines, Docker, Kubernetes, and Azure DevOps to maintain high-quality standards and streamline deployments.

Development Practices: Advocate for pair programming, thorough code reviews, and microservice architecture to enhance collaboration and code quality.

Persönliche Daten

Sprache
  • Ukrainisch (Muttersprache)
  • Englisch (Fließend)
  • Deutsch (Gut)
Reisebereitschaft
auf Anfrage
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
Home-Office
unbedingt
Profilaufrufe
24
Alter
32
Berufserfahrung
11 Jahre und 7 Monate (seit 06/2013)
Projektleitung
5 Jahre

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