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.

Senior Associate SIT Engineer