.NET Software Engineer

Req ID: 138657

Remote Position: Hybrid

Region: Europe

Country: Romania

State/Province: Oradea

City: Oradea

Summary

As an experienced .NET Software Engineer, you will actively contribute to the technical transition, modernization and rewrite of our core enterprise applications from legacy systems to .NET. Operating within a collaborative, multi-disciplinary development team, you will participate in the end-to-end software development lifecycle (SDLC) to implement a modern, scalable .NET architecture. In this role, you will combine strong hands-on technical execution with close team collaboration, working alongside senior engineers, business analysts and architects to establish engineering best practices and ensure overall software excellence.

Contract Duration: Full-Time (2-Year Limited Term with a strong possibility of extension or transition to an indefinite contract)

Detailed Description

Full professional level; applies software engineering expertise in a specific area of specialization. Work is performed within established professional standards, technical guidelines and project objectives. Works on problems of moderate to diverse scope where analysis of technical requirements, system architectures and data schemas requires evaluation of identifiable factors. Exercises technical judgment within defined procedures and software development practices to determine appropriate action. Receives general instructions on routine development tasks and detailed instructions on new projects or complex system assignments. Builds productive collaborative relationships across development, QA and business analyst teams.

Performs tasks such as, but not limited to, the following:

• Contribute actively to the software design and end-to-end delivery of scalable enterprise web applications using ASP.NET Core MVC and .NET 10, collaborating with senior engineers and the dedicated architect to implement robust technical solutions.
• Support the modernization and rewrite process, migrating legacy Java and Java ADF application functionalities into a high-performance .NET architecture while ensuring functional parity.
• Balance legacy modernization with new features enablement, designing and building brand-new product capabilities from scratch to deliver strategic business value.
• Collaborate with senior engineers and the dedicated architect to implement robust architectural foundations, design RESTful APIs and optimize data flows integrated with Oracle DB.
• Deliver clean, maintainable and scalable code by strictly adhering to SOLID principles and Clean Code practices.
• Manage modern development workflows in GitLab, utilizing standardized branching strategies, merge request processes and CI/CD practices.
• Work closely within a collaborative team environment, actively sharing knowledge on modern .NET development, participating in peer code reviews and contributing to a culture of continuous learning.
• Ensure application reliability and stability by defining and implementing code testing standards, structured debugging and proactive performance optimization.
• Proactively identify and resolve technical debt, modernize user interfaces and enhance application stability, security and performance.
• Collaborate with IT/Business partners, leadership and global stakeholders to translate business requirements into clear technical specifications.
• Maintain comprehensive technical documentation for architectural designs, system configurations and database schemas to ensure long-term maintainability.

Knowledge/Skills/Competencies

• Minimum of 5 years of professional experience in the .NET ecosystem, with a strong passion for modern C# features and ASP.NET Core.
  • Solid expertise in software design and architecture (Dependency Injection, Repository Pattern, Clean Architecture and Modular Design), with the ability to propose and implement scalable solutions.
  • Advanced proficiency in Database Architecture and SQL, with experience optimizing Entity Framework Core integrated with Oracle DB (experience with other relational databases such as PostgreSQL or SQL Server is highly acceptable).
  • Competency in web development and frontend integration, combining ASP.NET Core MVC with JavaScript to build highly interactive, responsive and performant user interfaces using UI components (such as Telerik UI), along with basic HTML and CSS skills.
  • Hands-on experience with version control and modern Git workflows (GitLab, branch protection, Merge Requests) along with exposure to CI/CD automation pipelines.
  • Proven ability to work collaboratively within a development team, take technical ownership of features, manage priorities and drive quality standards through constructive code reviews.
  • Exceptional verbal and written English skills for cross-cultural collaboration, negotiating technical requirements and explaining complex .NET concepts to team members.
  • Flexibility to occasionally participate in technical discussions and align on architecture with managers and architects in the Canada timezone (EST).
  • Self-driven, proactive mindset with a focus on writing highly scalable, long-term maintainable code and a desire to contribute to architectural discussions.
  • Basic familiarity or openness to reading Java and Java ADF code to understand existing legacy business logic is considered an asset (previous hands-on Java development is not required).
  • Understanding of Supply Chain Management (SCM) processes or ERP workflows is considered an asset (openness and willingness to learn these business processes is highly valued).
  • Knowledge or experience with UI frameworks (e.g., Telerik UI for ASP.NET Core with Ajax Binding, Tag Helpers) is considered an asset.
  • Experience working in an Agile/Scrum environment with a solid understanding of sprint cycles, collaborative delivery and continuous improvement is preferred.
  • Awareness of and comfort with a 2-year limited-term contract structure with a strong possibility of extension or transition to an indefinite contract.
  • Openness to utilizing modern development tools and AI-assisted engineering practices is preferred.

  Physical Demands

  • Duties of this position are performed in a normal office environment.
  • Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data.
  • Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.

Physical Demands

• Duties of this position are performed in a normal office environment.
• Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data.
• Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.

Typical Experience

• 5+ years of experience in a similar role spanning software development and .NET web applications delivery.

Typical Education

• University degree in one of the following: Computer Science, Information Technology, Information Systems or a related technical field.

Notes

This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job. Job duties and the % of time identified for any function are subject to change at any time.

Celestica is an equal opportunity employer. All qualified applicants will receive consideration for employment and will not be discriminated against on any protected status (including race, religion, national origin, gender, sexual orientation, age, marital status, veteran or disability status or other characteristics protected by law).

At Celestica we are committed to fostering an inclusive, accessible environment, where all employees and customers feel valued, respected and supported. Special arrangements can be made for candidates who need it throughout the hiring process. Please indicate your needs and we will work with you to meet them.

COMPANY OVERVIEW:

Celestica, Inc. (NYSE: CLS; TSX: CLS) is a technology leader dedicated to driving customer success and market advancements. With deep expertise in design, engineering, manufacturing, supply chain, and platform solutions, Celestica enables critical data center infrastructure for AI, cloud, and hybrid cloud and advances technologies in high-growth markets. With a talented team and a strategic global network, Celestica helps its customers achieve competitive advantages.

Today, Celestica delivers innovative supply chain solutions globally to customers in strategic two operating and reporting segments: Advanced Technology Solutions (ATS) and Connectivity and Cloud Solutions (CC):

ATS: This segment serves customers in complex, regulated and high-reliability markets such as Industrial & Smart Energy, Aerospace & Defense, Semiconductor Capital Equipment, and HealthTech. It is engineering led, with deep expertise in design, manufacturing and lifecycle solutions.

CCS: This segment focuses on high-performance technology solutions and services for the data center, serving hyperscalers, digital native customers and enterprises. Celestica's Platform Solutions offering provides innovative and customizable computing, storage and networking solutions enabling AI-driven growth.

Built on a legacy of trust and performance, Celestica has earned its reputation by delivering results in complex and fast-changing markets. Celestica exceeds customer expectations by identifying trends and staying ahead of the curve. Backed by comprehensive capabilities and a global network across North America, Europe and Asia, Celestica helps customers gain competitive advantage with the quality, flexibility and resiliency they need to respond quickly to shifts in demand. Guided by a bold vision to accelerate market advancements, Celestica delivers innovative solutions and technologies that turn complexity into opportunity. Anchored in teamwork and commitment, Celestica strives to be the most trusted partner to its customers and colleagues worldwide.

Celestica would like to thank all applicants, however, only qualified applicants will be contacted.

Celestica does not accept unsolicited resumes from recruitment agencies or fee based recruitment services.