Fullstack Developer .Net + React

IBM · Romanian: C1 · English: C1 · LLM & Generative AI · Quantum Science & Computing · JavaScript · TypeScript · SQL · C# · Power BI · SSIS · 4 days ago
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Location
In office (Bucharest)
Seniority
Senior · 6+ years exp
Visa
Sponsors visas in United States, Ireland; no register of this country names it

Confirmed on the employer's own hiring board on Nov 6, 2026. First seen by Alion on Oct 30, 2026. IBM scores A on the Alion truth index.

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IBM

IBM is an American technology company whose roots go back to the 1911 formation of the Computing-Tabulating-Recording Company, and which has been headquartered in Armonk, New York for decades. It defined mainframe computing, the personal computer standard and much of enterprise data processing, and today concentrates on hybrid cloud built around Red Hat, enterprise AI through the watsonx platform, consulting services and the mainframe and storage systems that still run the world's largest transaction workloads. The company also runs one of the leading quantum computing programmes and consistently ranks among the largest recipients of United States patents.
ibm.com · HQ: Armonk, United States · LLM & Generative AI · Quantum Computing Hardware · Servers & Data Center Hardware · Cloud Platforms (IaaS & PaaS) · IT Consulting & Digital Transformation · 5000+ employees · Est. 1911
Tech stack of IBM
Backed by Lightspeed Venture Partners, Bessemer Venture Partners, Kleiner Perkins

We are seeking a skilled Full Stack .NET Developer to join our high-performing agile team and contribute to the development and maintenance of a custom-built web application. The tech stack includes React, ASP.NET Core (.NET 9), and Azure SQL, ensuring top-quality software delivery. ·Technical solution design, build, test and implementation of new business requirements ·Modify software products after delivery to correct faults, to improve performance or other attributes including related troubleshooting ·Enhancing the overall user experience (e.g., in terms of usability, performance, security); ·Modernizing the application architecture or underlying components; ·Reducing technical debt and/or introducing incremental changes to the IT architecture (e.g., by refactoring existing components using established patterns); ·Leveraging on existing event driven architecture capabilities to fulfill or enhance a specific business need (e.g., Kafka); ·Enhancing the integration with other systems. ·Enhancing the integration and data flows within the ecosystem.

  • Backend: C# and ASP.NET Core (currently .NET 9), containerized, hosted on Linux in Azure (AKS)
  • Frontend: React v16.14.0 (Redux/Flux), Typescript ,CSS: Sass/Less
  • Database and others: Azure SQL, SQL Server Reporting Services (SSRS)/PowerBI , SQL Server Integration Services (SSIS)
  • Source control, CI/CD: Gitlab, Sonarqube
  • Key areas: Performance, Backend refactoring and architecture modernization ·Advanced command of English, both orally and in writing (C1); preferably also language proficiency in Romanian ·6+ years of working experience with .Net and SQL Server ·Experience with React would be a plus ·Good communication skills, collaborative work ·Professional experience following agile processes such as Scrum Romania Software Engineering Hybrid Professional Bucharest, RO Bucharest (0112) IBM Romania Srl Architecture Command Communication English Linux Structured Query Language Structured Query Language Server Reporting Services Scrum Writing Azure React Agile Redux TypeScript Continuous Integration/Continuous Delivery Full Stack Development GitLab SonarQube Romanian Professionalism Azure Kubernetes Service ASP.NET Core Certified Safety Supervisor SQL Server Integration Services
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