Senior QA Engineer

Req ID: 138751 
Remote Position: Hybrid
Region: Europe 
Country: Romania 
State/Province: Oradea 
City:  Oradea 

Summary

As a Senior QA Engineer, you will drive the quality assurance and testing strategy for the critical technical transition and modernization of our core Supply Chain Management (SCM) applications. Operating within a global, multi-technology environment, you will validate the migration of legacy Java applications into a scalable .NET 10 architecture. In this strategic role, you will establish global QA standards, architect the test automation framework from scratch and coordinate the testing efforts of a distributed QA team across North America, Europe and Asia.
Detailed Description
As a Senior Specialist, you will apply advanced Quality Engineering expertise to solve complex problems of diverse scope. This is a proactive quality engineering role where you will champion a "Shift-Left" testing culture, analyzing technical specifications early in the development lifecycle to identify logic gaps before coding begins. Because this is a complex modernization project, you will focus on reverse-engineering and testing the legacy Java systems, analyzing existing workflows to extract critical business logic and ensure complete functional parity in the new .NET ecosystem.
You will have a high degree of technical ownership, defining the test automation framework from scratch using modern tools (e.g., Playwright using TypeScript or C#) to align with the development team's stack. Furthermore, you will act as the global QA coordinator for this project, setting standards, managing test plans and providing technical mentorship to QA engineers located in Toronto and Asia. You will also engage directly with cross-functional business stakeholders and diverse end-users to understand varied workflows, leading User Acceptance Testing (UAT) to ensure that the iterative delivery of new features seamlessly integrates with the modernized architecture.

Detailed Description

Performs tasks such as, but not limited to, the following:
●    Define and lead the global QA strategy for the application rewrite project, setting testing standards, methodologies and workflows for QA engineers in Oradea, Toronto and Asia.
●    Ensure absolute functional parity between the legacy Java/Java ADF applications and the newly rewritten .NET applications, preventing regressions during the modernization process.
●    Actively participate in requirements gathering and business alignment discussions, analyzing specifications early in the development lifecycle (Shift-Left) to identify edge cases and logic gaps, while designing and authoring comprehensive test plans and test cases (both manual and automated).
●    Extract and validate business logic by thoroughly testing existing features in the legacy system to help the team accurately translate them into new technical requirements.
●    Engage directly with business owners and diverse end-users to map out real-world usage, understanding how different personas utilize the application to ensure all distinct workflows and scenarios are comprehensively covered in the test cases.
●    Ensure comprehensive UI feature parity, verifying that all capabilities of the legacy interfaces (e.g., complex data grids, specific workflows) are successfully ported, while proactively proposing UI/UX enhancements where applicable.
●    Architect and implement a Test Automation framework from scratch for critical application paths, utilizing modern, scalable tools (e.g., Playwright, Cypress, Selenium) while fostering strong collaboration with the .NET development team.
●    Define and execute Performance and Load Testing strategies (using tools like k6 or Apache JMeter) to guarantee that the modernized .NET applications match or exceed the performance, responsiveness and scalability of the legacy systems.
●    Validate complex data migrations and integrations, using advanced SQL to verify data integrity between the application layers and the Oracle DB and establish robust Test Data Management (TDM) practices to create, manage and, where needed, safely mask test datasets without compromising production environments.
●    Support continuous and iterative delivery, taking primary technical ownership of the legacy rewrite testing strategy, while also guiding the QA lifecycle for brand-new features developed simultaneously.
●    Coordinate and facilitate User Acceptance Testing (UAT) sessions directly with business stakeholders and end-users to secure final feature sign-off.
●    Act as a technical mentor and coordinator for the extended global QA team, conducting test plan reviews, sharing best practices, ensuring consistent quality across all timezones and defining clear QA metrics/dashboards to provide stakeholders with visibility into application quality and release readiness.

Knowledge/Skills/Competencies

●    Minimum of 8 years of professional experience in Quality Assurance and Software Testing, with a strong background in testing large-scale web applications, complex business logic and system integrations.
●    Demonstrated ability to drive testing strategies and share best practices, possessing strong teamwork skills and the leadership qualities needed to guide a collaborative QA effort.
●    Strong capability in Requirements Analysis, with the ability to sit at the table with business stakeholders and architects to challenge, refine and validate technical specifications.
●    Hands-on experience architecting Test Automation frameworks using modern programming languages (e.g., TypeScript, JavaScript or C#) and tools (e.g., Playwright, Selenium, SpecFlow/Reqnroll, NUnit/xUnit), backed by a strong foundation in testing principles and the ability to adapt to new tools when necessary.
●    Experience with Performance and Load Testing tools (e.g., k6, JMeter, Gatling or similar) to validate the speed and stability of high-load distributed systems.
●    Proficiency in API Testing (using tools like Postman, Swagger or RestSharp) and understanding of RESTful architectures.
●    Solid expertise in Database Testing and SQL, capable of writing complex queries to validate data integrity in relational databases (Oracle DB experience is highly valued).
●    Excellent verbal and written English skills for cross-cultural collaboration, negotiating requirements and bridging the communication gap between non-technical business users and .NET developers.
●    Flexibility to occasionally participate in technical discussions, business requirements alignment and specifications review with managers, QA team members and stakeholders in the Canada timezone (EST).
●    Experience working in an Agile/Scrum environment with a solid understanding of iterative delivery, CI/CD integration and continuous improvement.
●    Basic familiarity or openness to exploring Java applications to understand existing legacy workflows is considered an asset.
●    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).
●    Openness to utilizing modern development tools and AI-assisted engineering practices for test generation and maintenance while applying strong critical thinking to review, refine and take full ownership of the final implementation.

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

• 8+ years of experience in a similar role spanning software quality assurance, test automation architecture and business requirements analysis.

Typical Education

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

• Educational Requirements may vary by Geography

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.