Sr. Quality Assurance Test Engineer | Contract | Hybrid, Chicago, IL

2Link Partners; Chicago (IL); On-site; USD 110,000 - 150,000; Full time

Job summary

2Link Partners is seeking a seasoned Quality Assurance Test Engineer for a contract role in the Chicago area. You will own testing across payments, AS/400 environments, and complex enterprise applications, ensuring high-quality releases.

You’ll design and execute tests, analyze data with SQL, and collaborate with offshore and onshore teams in Agile/Scrum and Waterfall settings. Local candidates only, strong attention to detail preferred.

Qualifications

• > 10 years of professional QA experience, non-negotiable.
• > Hands-on testing across the full software lifecycle.
• > Payment provider and processing testing must have been performed.
• > Experience with payment authorization/pre-authorization processes.
• > AS/400 experience required.
• > Strong QA methodologies and data validation skills.
• > Experience working with offshore teams and multiple projects.

Responsibilities

• > Develop and execute comprehensive test strategies, plans, and cases.
• < Perform functional, integration, regression, system, and UAT testing.
• < Validate payment workflows including authorization and pre-authorization.
• < Test across AS/400 environments and applications.
• < Write and execute SQL queries for data validation and verification.
• < Identify, track, and resolve defects; perform RCA as needed.
• < Manage multiple testing events and releases; collaborate with teams.
• < Support test reporting and QA lifecycle activities.
• < Help establish QA practices and standards across the organization.

Skills

QA experience 10+ years

Payment testing

AS/400 testing

SQL data validation

Root cause analysis

Agile/Scrum & Waterfall

Jira/ALM/TFS

Offshore collaboration

Analytical thinking

Communication skills

Tools

Jira

ALM

TFS/ADO

Job description

We are looking for a seasoned Quality Assurance Test Engineer to join a high-impact technology team on a contract basis in the Chicago area. This is a hands‑on QA role focused on ensuring consistent, high‑quality testing standards across a portfolio of applications and systems. Local Chicago‑area candidates only.

The Opportunity

You’ll play a critical role in delivering quality across enterprise applications and systems, with a particular focus on payment processing, payment authorization/pre‑authorization, AS/400, and retail environments. This is a hands‑on position for someone who takes ownership of quality throughout the entire testing lifecycle, from strategy and test design through execution, defect resolution, and reporting.

What You’ll Be Doing

• Developing and executing comprehensive Test Strategies, Test Plans, Test Cases, and Test Execution plans
• Performing functional, integration, regression, system, and User Acceptance Testing (UAT)
• Testing payment providers and payment processing workflows, including payment authorization and pre‑authorization processes
• Performing hands‑on testing across AS/400 environments and applications
• Writing and executing SQL queries for data validation, results verification, and data analysis
• Troubleshooting complex issues, performing Root Cause Analysis (RCA), and partnering with development teams on resolution
• Managing multiple testing events, releases, and projects simultaneously
• Collaborating with development, business, and offshore teams to identify, track, and resolve defects
• Working effectively within both Agile/Scrum and Waterfall methodologies
• Utilizing Jira, ALM, TFS/ADO, or similar test and defect management systems
• Supporting test reporting, defect tracking, status reporting, and overall QA lifecycle activities
• Helping establish, improve, and evolve QA practices and standards across the organization

What You Bring

• 10+ years of professional Quality Assurance experience — non‑negotiable
• Extensive hands‑on experience across the full software testing lifecycle
• Hands‑on payment provider/payment processing testing experience — must have
• Hands‑on experience with payment authorization and pre‑authorization processes — must have
• Hands‑on AS/400 experience — must have
• Strong understanding of QA methodologies, best practices, and quality management principles
• Strong hands‑on experience with functional, integration, regression, system, and UAT testing
• Strong SQL skills for data validation, data analysis, and troubleshooting
• Proven experience performing Root Cause Analysis and supporting defect resolution
• Experience managing multiple projects and testing events simultaneously
• Hands‑on experience working in Agile/Scrum and Waterfall environments
• Experience with Jira, ALM, TFS/ADO, or similar systems of record
• Demonstrated experience working effectively with offshore development and QA resources
• Strong analytical and critical‑thinking skills
• Exceptional attention to detail and a strong quality mindset
• Excellent verbal and written communication skills
• Ability to quickly learn complex business processes and translate them into effective testing strategies
• Comfortable working in a fast‑paced environment and taking on multiple responsibilities

Nice to Have

• Retail industry experience
• Order Management System (OMS) experience
• Experience working with large‑scale enterprise applications and legacy systems
• Experience helping establish or mature QA processes and practices

Requirements

• Must be local to the Chicago area
• Must be authorized to work in the US; USC, Green Card, or EAD only
• 10+ years of Quality Assurance experience
• Payment provider/payment processing testing experience is required
• Payment authorization/pre‑authorization experience is required