Senior Full Stack Developer / React.js / Next.js / Node.js / .NET / AWS / MongoDB / SQL Server
Aktualisiert am 19.11.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.12.2024
Verfügbar zu: 100%
davon vor Ort: 0%
ReactJS
Node.js
.Net
Express.js
Next.js
TypeScript
Redux
Ionic
MUI
Chackra UI
C#
Elastic Search
MongoDB
MS SQL Server
PostgreSQL
AWS
Microservices
RabbitMQ
ADO.NET Entity Framework
Git
Kanban
Scrum
English
Verhandlungssicher

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

9 months
2024-03 - now

ArtBot AI

Senior JavaScript Full Stack Developer Node.js TypeScript AWS Serverless ...
Senior JavaScript Full Stack Developer

The client, a branch of the ad giant Omnicom, is a top media integration, creative and ad tech, providing end-to-end DCO services. ArtBot is a modern, integrated solution that efficiently delivers the most relevant digital marketing content.

  • Increased the click-through rate by 20%.
  • Increased engagement with a staggering average of more than 40 times.
  • Decreased the cost per conversion by more than 50%.
  • Improved the overall ad performance by 40%.

Node.js TypeScript AWS Serverless MySQL Redis Knex Query Builder React.js React Query Zustand Radix UI Jest Unit Testing GitLab Agile Scrum
Artbotai Limited (Omnicom Group)
Remote
7 months
2023-08 - 2024-02

Microservices migration

Senior React Full Stack Developer React.js Next.js Radix UI ...
Senior React Full Stack Developer

The client, a startup company active in the IT industry, identified multiple issues related to the HR departments that were struggling with employee migration due to lacking an understanding of what motivates people before the status quo gets changed.

  • Improved the delivery speed for client-specific features and updates by 50%.

  • Increased the sales by 80% by allowing faster integrations.
React.js Next.js Radix UI TypeScript Node.js Express.js RabbitMQ MongoDB Docker Unit Testing GitHub Kanban
People Vibe
Remote
4 months
2023-04 - 2023-07

GCP Marketplace Account Registration & Entitlement Management

Senior React Full Stack Developer React Node.js TypeScript ...
Senior React Full Stack Developer

The client is a top cloud consulting and services company specialising in aiding businesses with their transition to Google Cloud. They recently had to provide a solution allowing for Google Cloud Marketplace interactions for a Subscription-based SaaS with an integrated billing model.

  • Enabled the client to maintain an average reseller month-to-month rate of over 80% by expanding their service area and allowing customers to integrate products with Google Cloud Marketplace.
React Node.js TypeScript Redux GCP Marketplace Google OAuth Material UI OpenTelemetry Jira GitLab
Zencore
Remote
1 year 3 months
2022-02 - 2023-04

Customer Portal

Senior Angular Developer Angular NgRx RxJS ...
Senior Angular Developer

The client, one of the leading insurance companies worldwide, was aiming to reduce face-to-face interaction between employees and customers but was having difficulties in doing so due to lacking a new and modern application.

  • Reduced costs related to direct client interaction by 80% by building a new application using modern technologies and automating most of the business-related processes.
Angular NgRx RxJS Ionic TypeScript .Net Core EF Core Ocelot Gateway CQRS architecture SQL Server Confluence Jira GitLab
Generali Romania
Remote
10 months
2021-05 - 2022-02

Solution architecture and infrastructure development

Senior React Full Stack Developer React Redux Ionic ...
Senior React Full Stack Developer

The client, a startup company active in the IT industry, identified multiple issues related to the HR departments that were struggling with employee migration due to lacking an understanding of what motivates people before the status quo gets changed.

  • Estimated reduction in employee early resignation by at least 60% by predicting the behaviour, identifying the cause, and suggesting solutions.

  • I decreased the time and costs of recruiting new employees by about 40% by understanding the needs and behaviours at different organizational levels.
React Redux Ionic TypeScript Node.js .Net Core EF Core CQRS Windows Services SQL Server Docker Unit Testing GitHub Kanban
People Vibe
Remote
4 years
2017-05 - 2021-04

Encore

Senior Full Stack Developer AngularJS React.js JSON-RPC ...
Senior Full Stack Developer

The client, a leading American company for media distribution, assimilated over the years many in-store music delivery companies, a fact which raised the complexity of managing the business due to lacking a centralized music platform.

  • Achieved a stunning 5 companies merge in less than 5 years by enabling the music platforms to integrate with all legacy systems and integrate the foreign music repositories and features by implementing an innovative design combined with high throughput cloud processing.
AngularJS React.js JSON-RPC .Net Framework Web API EF CQRS SQL Server PostgreSQL Elasticsearch RabbitMQ Windows Services Unit Testing Integration Testing UI Testing AWS GitHub Kanban
Mood Media
Bucharest
2 years 3 months
2015-02 - 2017-04

MVision

Senior Angular Developer AngularJS Telerik .Net Framework ...
Senior Angular Developer

The client, one of the leading American companies for media distribution, was on the edge of losing support for its core platform for visual media distribution due to the end of life for Silverlight, therefore a clone of the legacy application, based on modern technologies, was necessary to be developed.

  • Allowed a doubled number of clients to benefit from a better workflow through the use of modern technology.

  • Developed a low-latency platform with more than 100k online players seamlessly accessing and synchronizing data in almost real-time by designing and implementing a scalable solution using TPL and message broker.
AngularJS Telerik .Net Framework Web.API Dapper SQL Server Windows Services TDD SOLID GitHub Agile Scrum
Mood Media
Bucharest
8 months
2014-06 - 2015-01

Microsoft Dynamics Marketing

Senior .NET Full Stack Developer TypeScript .NET Framework ASP.NET Web Forms ...
Senior .NET Full Stack Developer

The client, one of the biggest software companies, revolutionized online marketing tools with MDM, which was constantly growing and needed new features and continuous maintenance due to the increasing number of clients adopting the platform.

  • Doubled performance and UI responsiveness by implementing a robust solution based on significant refactoring and applied code optimizations.

  • I improved the client management system, the communication gateway, and the sales modules by adding new features.

  • Shrunk the release cycle by half and reduced the maintenance time by raising the code coverage to 97%.
TypeScript .NET Framework ASP.NET Web Forms ADO.NET WCF SOAP Windows Services SQL Server Unit Testing Integration Testing TFS Agile Scrum
Microsoft
Remote
5 months
2014-02 - 2014-06

EReceipt

Senior .NET Full Stack Developer ASP.NET MVC JavaScript .Net Framework ...
Senior .NET Full Stack Developer
The client, an insurance company, had significant delays in the commercial
relationship with its clients due to the lack of an automatic receipt issuing system
integrated with all necessary back office management tools.
  • Reduced the number of employees involved in maintaining the process by a whopping 80% and eliminated human processing error by implementing a fully automated process
ASP.NET MVC JavaScript .Net Framework WCF RESTful Windows Services EF SOLID SQL Server SQL Reporting Services Agile Scrum
Generali
4 years 5 months
2010-02 - 2014-06

Back Office Application Suite

Head of Back Office Software Development .Net Framework C# Windows Forms ...
Head of Back Office Software Development
The client, one of the leading insurance companies in Romania merged with another big insurance company and system integration was needed.

- Increased revenue by 10% by creating an improved workflow.
- Boosted the responsiveness of back-office applications by about 3 times by successfully combining client-side with server-side processing.
.Net Framework C# Windows Forms ASP.NET MVC JavaScript jQuery WCF RESTful Windows Services EF WCF OData ADO.NET SOLID SQL Server SQL Reporting Services Agile Scrum
Generali Romania
Bucharest
1 year 3 months
2012-11 - 2014-01

Data Import Tool

Senior .NET Full Stack Developer ASP.NET MVC JavaScript jQuery ...
Senior .NET Full Stack Developer

The client, one of the leading insurance companies in Romania, struggled with the constant need to import data into databases, due to lacking a tool that could be

used by employees not familiar with low-level database manipulation.

  • Decreased the load of the back-office employees by implementing a fully automated process
  • Reduced the time of preparing data for further processing from 8 hours to almost an instant by using predefined templates.

ASP.NET MVC JavaScript jQuery C# .Net Framework WCF OData Windows Services EF SOLID SQL Server Agile Scrum
Generali
1 year 3 months
2011-08 - 2012-10

CashFlow

Senior .NET Full Stack Developer JavaScript ASP.NET MVC .Net Framework WCF OData ...
Senior .NET Full Stack Developer

The client, an insurance company, had major delays in the commercial relationship with its clients due to lacking a tool that could do a matching between the payments done by clients and the policy instalments.

  • Improved the workflow, and also allowed a modern look and feel for the user experience by replacing the legacy Visual Basic implementation with a webbased solution
  • Boosted the responsiveness by about 5 times by successfully combining client-side with server-side processing

JavaScript ASP.NET MVC .Net Framework WCF OData Windows Services EF SOLID SQL Server Agile Scrum
Generali
6 months
2011-02 - 2011-07

Justice Portal Screening

Senior .NET Full Stack Developer .Net Framework Windows Services Windows Forms ...
Senior .NET Full Stack Developer
The legal department of the client, which was an insurance company, had delays in keeping track of the progress status of their court files due to lacking a tool that could automatically notify them when needed.
  • Significantly reduced the time from 3 days to 6 hours to analyze the court file statuses and decisions by creating an automated process that gathered online data, prepared the information for further decision-making, and pushed notifications when necessary.

.Net Framework Windows Services Windows Forms EF SQL Server SOLID Agile Scrum
Generali
1 year
2010-02 - 2011-01

Money Collection

Senior .NET Full Stack Developer ASP.NET MVC JavaScript .Net Framework ...
Senior .NET Full Stack Developer
The client, an insurance company, was struggling to keep track of the business partner payments due to a deprecated software which was not designed from the beginning to cope with the increased business that they were facing therefore, a new solution was required.
  • Boosted performance more than 3 times by applying significant code optimizations.
  • Increased revenue by 10% by creating an improved workflow.

ASP.NET MVC JavaScript .Net Framework ADO.NET SOAP Web Services SQL Server SQL Reporting Services Agile Scrum
Generali
7 years 9 months
2002-05 - 2010-01

Global Seller

Senior .NET Full Stack Developer JavaScript ASP.NET Web Forms .Net Framework ...
Senior .NET Full Stack Developer
The client, a startup in the IT industry, together with Proforma Twin Marketing Group, a Canadian company that acted in the printing industry, identified the need for an online sales solution for vertical markets.
  • Boosted the company?s annual revenue by 50% by allowing outsourcing and consequently expanding the reseller's network
  • Significantly increased production by more than 100% by automating the ordering process and completely cutting off the interaction between production and final clients

JavaScript ASP.NET Web Forms .Net Framework ADO.NET Windows Services Web Services SQL Server
ISD

Aus- und Weiterbildung

Aus- und Weiterbildung

1993 - 1998
Politehnica University, Buchares
Computer Science

Position

Position

  • Senior React Full Stack Developer
  • Contractor
  • Freelancer

Kompetenzen

Kompetenzen

Top-Skills

ReactJS Node.js .Net Express.js Next.js TypeScript Redux Ionic MUI Chackra UI C# Elastic Search MongoDB MS SQL Server PostgreSQL AWS Microservices RabbitMQ ADO.NET Entity Framework Git Kanban Scrum

Produkte / Standards / Erfahrungen / Methoden

Profile
I am an experienced senior React, Node.js and .NET developer with 20+ years of experience, interested in remote work. I use my passion, skills, and expertise to design and implement top-of-the-line software solutions for companies worldwide. Do you need software solutions for your business? Let's have a conversation!

Skills

  • JavaScript
  • React.js
  • Next.js
  • TypeScript
  • Redux
  • Node.js
  • Angular
  • AngularJS
  • NgRx
  • RxJS
  • Ionic
  • C# .NET
  • Web API
  • WCF
  • SQL Server
  • PostgreSQL
  • Elasticsearch
  • AWS
  • RabbitMQ
  • Docker
  • Unit Testing
  • SOLID Principles
  • CQRS
  • Domain Driven Design
  • Microservices

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

9 months
2024-03 - now

ArtBot AI

Senior JavaScript Full Stack Developer Node.js TypeScript AWS Serverless ...
Senior JavaScript Full Stack Developer

The client, a branch of the ad giant Omnicom, is a top media integration, creative and ad tech, providing end-to-end DCO services. ArtBot is a modern, integrated solution that efficiently delivers the most relevant digital marketing content.

  • Increased the click-through rate by 20%.
  • Increased engagement with a staggering average of more than 40 times.
  • Decreased the cost per conversion by more than 50%.
  • Improved the overall ad performance by 40%.

Node.js TypeScript AWS Serverless MySQL Redis Knex Query Builder React.js React Query Zustand Radix UI Jest Unit Testing GitLab Agile Scrum
Artbotai Limited (Omnicom Group)
Remote
7 months
2023-08 - 2024-02

Microservices migration

Senior React Full Stack Developer React.js Next.js Radix UI ...
Senior React Full Stack Developer

The client, a startup company active in the IT industry, identified multiple issues related to the HR departments that were struggling with employee migration due to lacking an understanding of what motivates people before the status quo gets changed.

  • Improved the delivery speed for client-specific features and updates by 50%.

  • Increased the sales by 80% by allowing faster integrations.
React.js Next.js Radix UI TypeScript Node.js Express.js RabbitMQ MongoDB Docker Unit Testing GitHub Kanban
People Vibe
Remote
4 months
2023-04 - 2023-07

GCP Marketplace Account Registration & Entitlement Management

Senior React Full Stack Developer React Node.js TypeScript ...
Senior React Full Stack Developer

The client is a top cloud consulting and services company specialising in aiding businesses with their transition to Google Cloud. They recently had to provide a solution allowing for Google Cloud Marketplace interactions for a Subscription-based SaaS with an integrated billing model.

  • Enabled the client to maintain an average reseller month-to-month rate of over 80% by expanding their service area and allowing customers to integrate products with Google Cloud Marketplace.
React Node.js TypeScript Redux GCP Marketplace Google OAuth Material UI OpenTelemetry Jira GitLab
Zencore
Remote
1 year 3 months
2022-02 - 2023-04

Customer Portal

Senior Angular Developer Angular NgRx RxJS ...
Senior Angular Developer

The client, one of the leading insurance companies worldwide, was aiming to reduce face-to-face interaction between employees and customers but was having difficulties in doing so due to lacking a new and modern application.

  • Reduced costs related to direct client interaction by 80% by building a new application using modern technologies and automating most of the business-related processes.
Angular NgRx RxJS Ionic TypeScript .Net Core EF Core Ocelot Gateway CQRS architecture SQL Server Confluence Jira GitLab
Generali Romania
Remote
10 months
2021-05 - 2022-02

Solution architecture and infrastructure development

Senior React Full Stack Developer React Redux Ionic ...
Senior React Full Stack Developer

The client, a startup company active in the IT industry, identified multiple issues related to the HR departments that were struggling with employee migration due to lacking an understanding of what motivates people before the status quo gets changed.

  • Estimated reduction in employee early resignation by at least 60% by predicting the behaviour, identifying the cause, and suggesting solutions.

  • I decreased the time and costs of recruiting new employees by about 40% by understanding the needs and behaviours at different organizational levels.
React Redux Ionic TypeScript Node.js .Net Core EF Core CQRS Windows Services SQL Server Docker Unit Testing GitHub Kanban
People Vibe
Remote
4 years
2017-05 - 2021-04

Encore

Senior Full Stack Developer AngularJS React.js JSON-RPC ...
Senior Full Stack Developer

The client, a leading American company for media distribution, assimilated over the years many in-store music delivery companies, a fact which raised the complexity of managing the business due to lacking a centralized music platform.

  • Achieved a stunning 5 companies merge in less than 5 years by enabling the music platforms to integrate with all legacy systems and integrate the foreign music repositories and features by implementing an innovative design combined with high throughput cloud processing.
AngularJS React.js JSON-RPC .Net Framework Web API EF CQRS SQL Server PostgreSQL Elasticsearch RabbitMQ Windows Services Unit Testing Integration Testing UI Testing AWS GitHub Kanban
Mood Media
Bucharest
2 years 3 months
2015-02 - 2017-04

MVision

Senior Angular Developer AngularJS Telerik .Net Framework ...
Senior Angular Developer

The client, one of the leading American companies for media distribution, was on the edge of losing support for its core platform for visual media distribution due to the end of life for Silverlight, therefore a clone of the legacy application, based on modern technologies, was necessary to be developed.

  • Allowed a doubled number of clients to benefit from a better workflow through the use of modern technology.

  • Developed a low-latency platform with more than 100k online players seamlessly accessing and synchronizing data in almost real-time by designing and implementing a scalable solution using TPL and message broker.
AngularJS Telerik .Net Framework Web.API Dapper SQL Server Windows Services TDD SOLID GitHub Agile Scrum
Mood Media
Bucharest
8 months
2014-06 - 2015-01

Microsoft Dynamics Marketing

Senior .NET Full Stack Developer TypeScript .NET Framework ASP.NET Web Forms ...
Senior .NET Full Stack Developer

The client, one of the biggest software companies, revolutionized online marketing tools with MDM, which was constantly growing and needed new features and continuous maintenance due to the increasing number of clients adopting the platform.

  • Doubled performance and UI responsiveness by implementing a robust solution based on significant refactoring and applied code optimizations.

  • I improved the client management system, the communication gateway, and the sales modules by adding new features.

  • Shrunk the release cycle by half and reduced the maintenance time by raising the code coverage to 97%.
TypeScript .NET Framework ASP.NET Web Forms ADO.NET WCF SOAP Windows Services SQL Server Unit Testing Integration Testing TFS Agile Scrum
Microsoft
Remote
5 months
2014-02 - 2014-06

EReceipt

Senior .NET Full Stack Developer ASP.NET MVC JavaScript .Net Framework ...
Senior .NET Full Stack Developer
The client, an insurance company, had significant delays in the commercial
relationship with its clients due to the lack of an automatic receipt issuing system
integrated with all necessary back office management tools.
  • Reduced the number of employees involved in maintaining the process by a whopping 80% and eliminated human processing error by implementing a fully automated process
ASP.NET MVC JavaScript .Net Framework WCF RESTful Windows Services EF SOLID SQL Server SQL Reporting Services Agile Scrum
Generali
4 years 5 months
2010-02 - 2014-06

Back Office Application Suite

Head of Back Office Software Development .Net Framework C# Windows Forms ...
Head of Back Office Software Development
The client, one of the leading insurance companies in Romania merged with another big insurance company and system integration was needed.

- Increased revenue by 10% by creating an improved workflow.
- Boosted the responsiveness of back-office applications by about 3 times by successfully combining client-side with server-side processing.
.Net Framework C# Windows Forms ASP.NET MVC JavaScript jQuery WCF RESTful Windows Services EF WCF OData ADO.NET SOLID SQL Server SQL Reporting Services Agile Scrum
Generali Romania
Bucharest
1 year 3 months
2012-11 - 2014-01

Data Import Tool

Senior .NET Full Stack Developer ASP.NET MVC JavaScript jQuery ...
Senior .NET Full Stack Developer

The client, one of the leading insurance companies in Romania, struggled with the constant need to import data into databases, due to lacking a tool that could be

used by employees not familiar with low-level database manipulation.

  • Decreased the load of the back-office employees by implementing a fully automated process
  • Reduced the time of preparing data for further processing from 8 hours to almost an instant by using predefined templates.

ASP.NET MVC JavaScript jQuery C# .Net Framework WCF OData Windows Services EF SOLID SQL Server Agile Scrum
Generali
1 year 3 months
2011-08 - 2012-10

CashFlow

Senior .NET Full Stack Developer JavaScript ASP.NET MVC .Net Framework WCF OData ...
Senior .NET Full Stack Developer

The client, an insurance company, had major delays in the commercial relationship with its clients due to lacking a tool that could do a matching between the payments done by clients and the policy instalments.

  • Improved the workflow, and also allowed a modern look and feel for the user experience by replacing the legacy Visual Basic implementation with a webbased solution
  • Boosted the responsiveness by about 5 times by successfully combining client-side with server-side processing

JavaScript ASP.NET MVC .Net Framework WCF OData Windows Services EF SOLID SQL Server Agile Scrum
Generali
6 months
2011-02 - 2011-07

Justice Portal Screening

Senior .NET Full Stack Developer .Net Framework Windows Services Windows Forms ...
Senior .NET Full Stack Developer
The legal department of the client, which was an insurance company, had delays in keeping track of the progress status of their court files due to lacking a tool that could automatically notify them when needed.
  • Significantly reduced the time from 3 days to 6 hours to analyze the court file statuses and decisions by creating an automated process that gathered online data, prepared the information for further decision-making, and pushed notifications when necessary.

.Net Framework Windows Services Windows Forms EF SQL Server SOLID Agile Scrum
Generali
1 year
2010-02 - 2011-01

Money Collection

Senior .NET Full Stack Developer ASP.NET MVC JavaScript .Net Framework ...
Senior .NET Full Stack Developer
The client, an insurance company, was struggling to keep track of the business partner payments due to a deprecated software which was not designed from the beginning to cope with the increased business that they were facing therefore, a new solution was required.
  • Boosted performance more than 3 times by applying significant code optimizations.
  • Increased revenue by 10% by creating an improved workflow.

ASP.NET MVC JavaScript .Net Framework ADO.NET SOAP Web Services SQL Server SQL Reporting Services Agile Scrum
Generali
7 years 9 months
2002-05 - 2010-01

Global Seller

Senior .NET Full Stack Developer JavaScript ASP.NET Web Forms .Net Framework ...
Senior .NET Full Stack Developer
The client, a startup in the IT industry, together with Proforma Twin Marketing Group, a Canadian company that acted in the printing industry, identified the need for an online sales solution for vertical markets.
  • Boosted the company?s annual revenue by 50% by allowing outsourcing and consequently expanding the reseller's network
  • Significantly increased production by more than 100% by automating the ordering process and completely cutting off the interaction between production and final clients

JavaScript ASP.NET Web Forms .Net Framework ADO.NET Windows Services Web Services SQL Server
ISD

Aus- und Weiterbildung

Aus- und Weiterbildung

1993 - 1998
Politehnica University, Buchares
Computer Science

Position

Position

  • Senior React Full Stack Developer
  • Contractor
  • Freelancer

Kompetenzen

Kompetenzen

Top-Skills

ReactJS Node.js .Net Express.js Next.js TypeScript Redux Ionic MUI Chackra UI C# Elastic Search MongoDB MS SQL Server PostgreSQL AWS Microservices RabbitMQ ADO.NET Entity Framework Git Kanban Scrum

Produkte / Standards / Erfahrungen / Methoden

Profile
I am an experienced senior React, Node.js and .NET developer with 20+ years of experience, interested in remote work. I use my passion, skills, and expertise to design and implement top-of-the-line software solutions for companies worldwide. Do you need software solutions for your business? Let's have a conversation!

Skills

  • JavaScript
  • React.js
  • Next.js
  • TypeScript
  • Redux
  • Node.js
  • Angular
  • AngularJS
  • NgRx
  • RxJS
  • Ionic
  • C# .NET
  • Web API
  • WCF
  • SQL Server
  • PostgreSQL
  • Elasticsearch
  • AWS
  • RabbitMQ
  • Docker
  • Unit Testing
  • SOLID Principles
  • CQRS
  • Domain Driven Design
  • Microservices

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Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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