freiberufler Senior Full Stack developer auf freelance.de

Senior Full Stack developer

offline
  • 20‐45€/Stunde
  • 10116 Tallinn
  • auf Anfrage
  • ja  |  en
  • 10.07.2023

Kurzvorstellung

Meticulous and experienced web developer with a strong track record of delivering exceptional and responsive solutions within tight deadlines. Have 7+ years of professional experience.

Auszug Referenzen (3)

"His excellent workmanship left a deep impression to me."
React Developer
Karl
Tätigkeitszeitraum

3/2019 – 11/2022

Tätigkeitsbeschreibung

Built more than 10 web applications from inception, utilizing Laravel, Node.js, Django and React, resulting in a project success rate exceeding 90%.



Optimized over 20 web applications constructed with React+Redux, significantly enhancing user satisfaction and delivering a commendable bug resolution rate of over 95%.



Implemented transparent deployment pipelines, utilizing Jira, Git, Jenkins, and Docker to streamline processes and ensure efficient project delivery, and work efficiency increased by 115%.



Most recently, improved an ongoing project by optimizing its performance through the implementation of high-quality code and this resulted in a 10% increase in website traffic.

Eingesetzte Qualifikationen

Node.Js, Django, Laravel, React (JavaScript library)

"I know him well."
Front-end Developer
Kundenname anonymisiert
Tätigkeitszeitraum

2/2017 – 12/2018

Tätigkeitsbeschreibung

Improved user satisfaction by 45% through the reconstruction of our company's primary product's front-end using React and Redux.

Implemented Redux Saga's actions and reducers to facilitate synchronized API calls.

Utilized Redux Saga middleware to access the redux application state and dispatch redux actions seamlessly.



Utilized the new feature Hooks introduced in React 16.0 to refactor and optimize front-end applications, resulting in a substantial 30% reduction in codebase and significantly improving code maintainability.



Revolutionized the user interface and user experience by implementing a cutting-edge design strategy and harnessing the power of CSS, resulting in an unprecedented 30% surge in mobile traffic and enhanced user engagement.



Maintained a high level of professionalism and responsiveness by providing prompt updates and addressing requested changes from the project manager, and this has ensured that over 90% of deadlines were met and 99% of user requirements were implemented.

Eingesetzte Qualifikationen

Typescript, CSS (Cascading Style Sheet), HTML, JavaScript, Jquery, React (JavaScript library)

"I keep this my pleasure to confirm him."
Full-Stack Developer
Shenji
Tätigkeitszeitraum

3/2014 – 11/2016

Tätigkeitsbeschreibung

Collaborated closely with business-side clients to deliver visually appealing and intuitive screens that accurately represented the company's fulfillment workflow.

Performed thorough testing to identify and rectify over 20 UI bugs, resulting in upgraded app functionality and a 50% reduction in user complaints, thereby significantly enhancing overall user satisfaction.



Built HTML/HTML5/JavaScript/CSS/CSS3 based web sites while also ensuring cross-browser compatibility through thorough testing and debugging.

Revamped the performance of private APIs through meticulous refactoring and intensive optimization of the NodeJS code base, resulting in an impressive 50% reduction in API response time.



Achieved a seamless migration of the application to a cloud-based infrastructure and significantly optimized database queries, resulting in a remarkable 30% reduction in database access time.

Eingesetzte Qualifikationen

Node.Js, Typescript, JavaScript, Laravel, React (JavaScript library)

Qualifikationen

  • CSS (Cascading Style Sheet)1 J.
  • Datenbankentwicklung
  • Django3 J.
  • HTML1 J.
  • JavaScript4 J.
  • Jquery1 J.
  • Laravel6 J.
  • Node.Js6 J.
  • React (JavaScript library)8 J.
  • Typescript4 J.

Projekt‐ & Berufserfahrung

React Developer
Karl, Tallinn
3/2019 – 11/2022 (3 Jahre, 9 Monate)
IT & Entwicklung
Tätigkeitszeitraum

3/2019 – 11/2022

Tätigkeitsbeschreibung

Built more than 10 web applications from inception, utilizing Laravel, Node.js, Django and React, resulting in a project success rate exceeding 90%.



Optimized over 20 web applications constructed with React+Redux, significantly enhancing user satisfaction and delivering a commendable bug resolution rate of over 95%.



Implemented transparent deployment pipelines, utilizing Jira, Git, Jenkins, and Docker to streamline processes and ensure efficient project delivery, and work efficiency increased by 115%.



Most recently, improved an ongoing project by optimizing its performance through the implementation of high-quality code and this resulted in a 10% increase in website traffic.

Eingesetzte Qualifikationen

Node.Js, Django, Laravel, React (JavaScript library)

Front-end Developer
Minato, Chuo
2/2017 – 12/2018 (1 Jahr, 11 Monate)
IT & Entwicklung
Tätigkeitszeitraum

2/2017 – 12/2018

Tätigkeitsbeschreibung

Improved user satisfaction by 45% through the reconstruction of our company's primary product's front-end using React and Redux.

Implemented Redux Saga's actions and reducers to facilitate synchronized API calls.

Utilized Redux Saga middleware to access the redux application state and dispatch redux actions seamlessly.



Utilized the new feature Hooks introduced in React 16.0 to refactor and optimize front-end applications, resulting in a substantial 30% reduction in codebase and significantly improving code maintainability.



Revolutionized the user interface and user experience by implementing a cutting-edge design strategy and harnessing the power of CSS, resulting in an unprecedented 30% surge in mobile traffic and enhanced user engagement.



Maintained a high level of professionalism and responsiveness by providing prompt updates and addressing requested changes from the project manager, and this has ensured that over 90% of deadlines were met and 99% of user requirements were implemented.

Eingesetzte Qualifikationen

Typescript, CSS (Cascading Style Sheet), HTML, JavaScript, Jquery, React (JavaScript library)

Full-Stack Developer
Kundenname anonymisiert, Fukuoka
3/2014 – 11/2016 (2 Jahre, 9 Monate)
IT & Entwicklung
Tätigkeitszeitraum

3/2014 – 11/2016

Tätigkeitsbeschreibung

Collaborated closely with business-side clients to deliver visually appealing and intuitive screens that accurately represented the company's fulfillment workflow.

Performed thorough testing to identify and rectify over 20 UI bugs, resulting in upgraded app functionality and a 50% reduction in user complaints, thereby significantly enhancing overall user satisfaction.



Built HTML/HTML5/JavaScript/CSS/CSS3 based web sites while also ensuring cross-browser compatibility through thorough testing and debugging.

Revamped the performance of private APIs through meticulous refactoring and intensive optimization of the NodeJS code base, resulting in an impressive 50% reduction in API response time.



Achieved a seamless migration of the application to a cloud-based infrastructure and significantly optimized database queries, resulting in a remarkable 30% reduction in database access time.

Eingesetzte Qualifikationen

Node.Js, Typescript, JavaScript, Laravel, React (JavaScript library)

Zertifikate

Frontend Developer
coursera
2018

Ausbildung

Software engineer
Master's Degree
Tokyo University of Information Sciences
2013
Tokyo

Über mich

I am a meticulous and experienced web developer with a strong track record of delivering exceptional and responsive solutions within tight deadlines. With over 7 years of experience, I have successfully created and tested user-friendly interfaces, debugged and enhanced existing projects, and consistently ensured customer satisfaction.

My proficiency extends to various platforms, languages, and embedded systems, enabling me to optimize web functionalities efficiently. Good at independently managing projects while also excelling in collaborative team settings.

Weitere Kenntnisse

Additionally, I have good experience in blockchain part and took part in various Dapp development.

Persönliche Daten

Sprache
  • Englisch (Fließend)
  • Japanisch (Muttersprache)
Reisebereitschaft
auf Anfrage
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
  • Vereinigte Staaten von Amerika
Home-Office
bevorzugt
Profilaufrufe
111
Alter
31
Berufserfahrung
10 Jahre und 10 Monate (seit 03/2014)
Projektleitung
8 Jahre

Kontaktdaten

Nur registrierte PREMIUM-Mitglieder von freelance.de können Kontaktdaten einsehen.

Jetzt Mitglied werden