Mid Fullstack Developer
LocationBucharest
Work modehybrid
Typefull-time
SeniorityMid
Experience5+ yrs
DepartmentSoftware Development
Company size501–1,000 people
PostedOct 5, 2026 · 1w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
5 years of experience with C#, .NET / .NET Core, and ASP.NET Core
3 years of experience with Angular, TypeScript, HTML, and CSS
Proven experience in enterprise-level software development
Practical experience using GitHub Copilot to support coding, refactoring, testing, code review, and technical problem-solving
Experience designing and consuming REST APIs
Good knowledge of relational databases, Microsoft SQL, data modeling, and database access from .NET applications
Good understanding of object-oriented programming, design patterns, and clean-code practices
Experience with Git and collaborative development workflows
Experience with unit testing, debugging, and application troubleshooting
Understanding of web application security, authentication, authorization, and role-based access
Understanding of multi-tenant SaaS application concepts and scalable application design
Ability to analyze technical problems and work independently on moderately complex development tasks
Good communication, collaboration, and documentation skills
Skills
.NET
C#
ASP.NET Core
Angular
TypeScript
HTML
CSS
GitHub Copilot
SQL
Microsoft SQL
Git
REST APIs
Benefits
Health insurance
Meal tickets
Professional development
Flexible work
Remote work
About Qualysoft
· 25 years of experience in software engineering, established in Vienna, Austria
· Active in Romania since 2007, with office in central Bucharest (Bd. Iancu de Hunedoara 54B)
· Delivering End to End IT Consulting Services - From Team Augmentation and Dedicated Teams to Custom Software Development
· We deliver scalable enterprise systems, intelligent automation frameworks, and digital transformation platforms
· Cross-industry experience by sustaining global players in BSFI (Banking, financial services and insurance), Telecom,Retail & E-commerce, Energy and Utilities, Automotive, Manufacturing, Logitics, High Tech
· Global Presence: Switzerland, Germany, Austria, Sweden, Hungary, Slovakia, Serbia, Romania, and Indonesia
· International team of 500+ software engineers
· Strategic partnerships: Microsoft Cloud Certified Partner, Tricentis Solutions Partner in Test Automation and Test Management, Creatio Exclusive Partner, Doxee Implementation Partner
· Powered by cutting-edge technologies: AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation.
· Project beneficiaries ranging from large-scale enterprises to startups
· Stable growth and revenue increase year over year, a resilient organisation in volatile IT market conditions
· Quality-first mindset, culture of innovation, and long-term client partnerships
· Global and local reach – trusted by key industry players in Europe and the US
Responsibilities
• Design, develop, test, and maintain features across backend and frontend applications.
• Develop backend services and REST APIs using .NET and C#.
• Develop responsive web applications and reusable components using Angular and TypeScript.
• Design and maintain application logic and database integrations using SQL-based relational databases.
• Write clean, maintainable, secure, and testable code following team development standards.
• Effectively use GitHub Copilot and other approved AI-assisted development tools to improve coding, testing, refactoring, and development productivity while ensuring code quality and correctness.
• Analyze requirements and translate business needs into appropriate technical solutions.
• Troubleshoot and resolve application defects, performance issues, and production incidents.
• Review code and contribute to improving code quality, architecture, and development practices.
• Write and maintain unit and integration tests and support QA activities.
• Participate in application modernization and refactoring of existing components.
• Consider performance, scalability, security, and multi-tenant requirements when developing new functionality.
• Collaborate with Product, QA, DBA, and DevOps teams throughout development, testing, deployment, and production support.
Qualifications
• 5 years of experience with C#, .NET / .NET Core, and ASP.NET Core.
• 3 years of experience with Angular, TypeScript, HTML, and CSS.
• Proven experience in enterprise-level software development (experience with high-performance applications)
• Practical experience using GitHub Copilot to support coding, refactoring, testing, code review, and technical problem-solving, while maintaining responsibility for code quality and correctness.
• Experience designing and consuming REST APIs.
• Good knowledge of relational databases, Microsoft SQL, data modeling, and database access from .NET applications.
• Good understanding of object-oriented programming, design patterns, and clean-code practices.
• Experience with Git and collaborative development workflows.
• Experience with unit testing, debugging, and application troubleshooting.
• Understanding of web application security, authentication, authorization, and role-based access.
• Understanding of multi-tenant SaaS application concepts and scalable application design.
• Ability to analyze technical problems and work independently on moderately complex development tasks.
• Good communication, collaboration, and documentation skills.
What We Offer
· Premium medical package
· Lunch Tickets & Pluxee Card
· Bookster subscription
· 13th salary/yearly bonuses
· Enterprise job security with a startup mentality (diverse & engaging environment, international exposure, flat hierarchy) under the stability of a secure multinational
· A supportive culture (we value ownership, autonomy, and healthy work-life balance) with great colleagues, team events and activities
· Flexible working program and openness to remote work
· Collaborative mindset – employees shape their own benefits, tools, team events and internal practices
· Diverse opportunities in Software Development with international exposure
· Flexibility to choose projects aligned with your career path and technical goals
· Access to leading learning platforms, courses, and certifications (Pluralsight, Udemy, Microsoft, Google Cloud)
· Career growth & learning – mentorship programs, certifications, professional development opportunities, and above-market salary
*We are an equal opportunity employer and value diversity. All employment decisions are made without regard to age, gender, disability, race, ethnicity, religion, sexual orientation, or any other protected characteristic. We encourage applicants from all backgrounds to apply.*