Senior Associate SIT Engineer

Job Overview

Role Summary

The System Integration Test Engineer is responsible for executing system integration testing (SIT) across applications, devices, APIs, and data systems to ensure overall product quality and reliability. This role focuses on validating end-to-end workflows, performing functional and performance testing, and leveraging modern tools, automation, AI techniques, and database validation to support high-quality releases.

A Day In The Life

Key Responsibilities

System Integration Testing

• Execute end-to-end SIT scenarios across multiple systems, including APIs, backend services, and user interfaces
• Validate data flow, integration points, and system interactions
• Identify, log, and track defects, integration issues, and inconsistencies
• Support test planning, test case creation, and test execution

Automation & Modern Testing Tools

• Develop and execute automation scripts for regression and integration testing
• Work with tools such as:
  • Selenium / Cypress (UI testing)
  • Postman / REST Assured (API testing)
• Contribute to test automation frameworks and CI/CD pipelines

Performance & Load Testing (Basic)

• Assist in executing load and performance tests using tools such as:
  • JMeter / k6
• Analyze test results and identify basic performance bottlenecks

AI-Assisted Testing (Emerging Skills)

• Use AI-powered testing tools for:
  • Test case generation
  • Defect prediction
  • Analysis of test results
• Support implementation of intelligent automation practices

Database & Data Validation

• Validate data integrity across systems using:
  • SQL queries
  • Data comparison techniques
• Work with relational databases (e.g., SQL Server, Oracle, PostgreSQL)
• Verify ETL/data pipeline accuracy and consistency

Defect Management & Troubleshooting

• Log and manage defects using tools like JIRA or Azure DevOps
• Perform basic root cause analysis with guidance from senior engineers
• Collaborate with development teams to resolve issues

Collaboration & Agile Participation

• Work in Agile/Scrum teams, participating in:
  • Sprint planning
  • Daily stand-ups
  • Retrospectives
• Collaborate with developers, business analysts, and QA teams

What will help you thrive in this role?

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field
• 2+ years of experience in:
  • Software testing / QA
  • System Integration Testing (preferred)

Technical Skills

Testing Tools

• API Testing: Postman, REST Assured
• UI Testing: Selenium, Cypress
• Test Management: JIRA, Azure DevOps

Performance Testing (Basic)

• JMeter, k6 (preferred)

Programming / Scripting

• Basic knowledge of:
  • Python / Java / JavaScript

Database Skills

• Strong SQL fundamentals
• Experience querying and validating data

AI Tools (Preferred)

• Exposure to AI-based testing tools or frameworks is a plus
• Familiarity with automation optimization using AI

Other Skills

• Understanding of SDLC and STLC processes
• Basic knowledge of API architecture and microservices
• Exposure to cloud platforms (Azure/AWS) is a plus

Key Competencies

• Strong analytical and problem-solving skills
• Attention to detail and quality focus
• Good communication and collaboration skills
• Ability to learn new tools and technologies quickly
• Proactive mindset toward automation and innovation

Preferred Experience

• Exposure to integration testing across multiple systems
• Knowledge of basic performance testing concepts
• Experience working with Agile teams

Success Metrics

• Test coverage and execution completeness
• Defect detection effectiveness
• Contribution to automation and efficiency improvements
• Accuracy of data and integration validation

Hubbell Incorporated

Hubbell creates critical infrastructure solutions that power our customers, communities, people and the planet. Our company is strategically aligned around enabling grid modernization and electrification. As more products plug in to an aging grid, Hubbell solutions enable the transition to a more reliable, resilient and efficient energy infrastructure. Founded in 1888 our innovation has made us a leading global manufacturer of high quality electrical and utility solutions enabling customers to operate critical infrastructure reliably and efficiently.

The company operates in two segments. Hubbell Utility Solutions (HUS) enable the grid to conduct, communicate and control energy across utility applications and Hubbell Electrical Solutions (HES) are essential to managing power across a wide range of industries and applications. Our vertical market solutions can be applied to markets including Data Centers, Renewables, Commercial Buildings, Industrial, Telecom and Transportation. Supporting both of our business segments is our corporate and Hubbell Unified Business Solutions teams that provide consistent process, tools technologies across our businesses.

We are committed to operating sustainably and ethically while promoting an inclusive and supportive culture for our people to grow and develop in their careers. Our employees proudly work and serve our communities from our headquarters in Shelton, CT, across the United States and around the globe.

Hubbell Utility Solutions

Hubbell Utility Solutions (HUS) enable the grid to conduct, communicate and control energy across utility applications. HUS provides the critical components that allow the grid to reliably transmit and distribute energy, as well as the communications and controls technologies to make the grid smarter and more flexible.

Hubbell Incorporated, its subsidiaries and affiliates, is an EO Employer AA: M/F/Veteran/Disability. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, sexual orientation, gender identity or any other protected class.

The above summary of position responsibilities and requirements is not intended, and should not be construed, to be an exhaustive list of duties, skills, efforts, physical requirements, or working conditions associated with the position. It is intended to be an accurate reflection of those principal position elements essential for making decisions related to position performance, employee development, and compensation.