Senior Fullstack Engineer (React/Angular+.NET)

ITConnect

Warszawa

Hybrid

PLN 180,000 - 260,000

Full time

6 days ago
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Job summary

ITConnect seeks a Senior Full Stack Engineer to develop a web portal, a mobile-ready site, backend APIs, and integration services in Azure. You will work across frontend and backend streams, collaborating with stakeholders and data teams to deliver secure solutions in a regulated environment.

You will build responsive apps with React/Angular and TypeScript on the frontend and C#/.NET on the backend, design REST APIs, and implement data transformations.

Qualifications

  • Experience building web portals, mobile-ready websites, and backend APIs.
  • Strong hands-on capability across frontend and backend.
  • Experience designing REST APIs, working with JSON, and data transformation.

Responsibilities

  • Develop and maintain responsive web applications using React and/or Angular with TypeScript.
  • Design, build, and operate backend services and REST APIs using C# and .NET on Azure
  • Implement API integrations, JSON processing, and data transformation across enterprise and data platforms
  • Integrate applications with Azure Databricks and data APIs
  • Build secure cloud solutions using Azure Functions, App Service, API Management, Storage, Key Vault, and Entra ID
  • Create unit, integration, and automated tests, and contribute to CI/CD using GitHub actions
  • Monitor and troubleshoot applications using Application Insights, structured logging, and operational diagnostics
  • Strong full stack development experience combining React and/or Angular with TypeScript on the frontend and C#/.NET on the backend
  • Practical experience designing and integrating REST APIs, working with JSON, and implementing data transformation logic
  • Hands-on experience with Azure Functions, App Service, API Management, Storage, Key Vault, and Entra ID
  • Good SQL skills and basic experience with NoSQL databases
  • Experience integrating applications with Azure Databricks and data APIs
  • Strong understanding of unit, integration, and automated testing practices
  • Experience implementing CI/CD using GitHub actions
  • Working knowledge of Docker and container fundamentals
  • Experience with Application Insights, logging, monitoring, and production troubleshooting
  • Ability to contribute across frontend and backend workstreams, including web portals, mobile-ready websites, APIs, and integration services
  • Understanding of secure application development and cloud-based identity and access management
  • Experience working in regulated environments with strong compliance and quality requirements as plus

Skills

React
Angular
TypeScript
C# / .NET
Azure
REST APIs
CI/CD
GitHub Actions
Testing
Application Insights
Docker
SQL
NoSQL
Azure Databricks
Azure Functions
App Service
API Management
Key Vault
Entra ID
JSON processing
Data transformation
Logging
Monitoring

Tools

Docker
Azure Databricks
API Management
Key Vault
Entra ID
Azure Functions
App Service
Storage

Job description

We are looking for an experienced Senior Full Stack Engineer to join our team and contribute to the development of a web portal, a mobile-ready website, backend APIs, and integration services in an Azure environment.

The role requires strong hands-on capability across both frontend and backend development. You will work across multiple workstreams, collaborating with business stakeholders, solution architects, developers, and data teams to deliver reliable, secure, and maintainable solutions in a regulated environment.

  • Develop and maintain responsive web applications using React and/or Angular with TypeScript
  • Design, build, and operate backend services and REST APIs using C# and .NET on Azure
  • Implement API integrations, JSON processing, and data transformation across enterprise and data platforms
  • Integrate applications with Azure Databricks and other data APIs
  • Build secure cloud solutions using Azure Functions, App Service, API Management, Storage, Key Vault, and Entra ID
  • Create unit, integration, and automated tests, and contribute to CI/CD using GitHub actions
  • Monitor and troubleshoot applications using Application Insights, structured logging, and operational diagnostics
  • Strong full stack development experience combining React and/or Angular with TypeScript on the frontend and C#/.NET on the backend
  • Practical experience designing and integrating REST APIs, working with JSON, and implementing data transformation logic
  • Hands-on experience with Azure Functions, App Service, API Management, Storage, Key Vault, and Entra ID
  • Good SQL skills and basic experience with NoSQL databases
  • Experience integrating applications with Azure Databricks and data APIs
  • Strong understanding of unit, integration, and automated testing practices
  • Experience implementing CI/CD using GitHub actions
  • Working knowledge of Docker and container fundamentals
  • Experience with Application Insights, logging, monitoring, and production troubleshooting
  • Ability to contribute across frontend and backend workstreams, including web portals, mobile-ready websites, APIs, and integration services
  • Understanding of secure application development and cloud-based identity and access management
  • Experience working in regulated environments with strong compliance and quality requirements as plus
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