Senior SIT Engineer

Job Overview The Senior System Integration Test Engineer is a senior technical leader responsible for driving system integration testing (SIT), performance engineering, and quality strategy across complex ecosystems involving applications, cloud platforms, distributed systems, databases, and device integrations. This role combines deep technical expertise with strategic leadership, leveraging modern testing tools, AI-driven testing practices, and data validation techniques to ensure scalable, high-performing, and reliable systems. A Day In The Life Key Responsibilities SIT Strategy & Leadership Define and implement SIT strategy, frameworks, and best practices Lead end-to-end system validation across APIs, applications, databases, cloud, and third-party integrations Provide technical leadership and direction for SIT across multiple programs Influence release readiness decisions and quality gates (Go/No-Go) End-to-End System Integration Oversee testing of complex, distributed, multi-system integrations Validate: API orchestration and service interactions Event-driven systems (Kafka, messaging platforms) Data pipelines and workflows Identify, analyze, and mitigate system-level risks and integration failures Performance Engineering & Scalability Lead performance engineering initiatives at enterprise scale Design and execute: Load, stress, endurance, and scalability testing Establish performance baselines aligned with business SLAs and KPIs Drive system tuning and capacity planning AI-Driven Testing & Advanced Automation Lead adoption of AI/ML-driven testing techniques, including: Intelligent test case generation o Predictive defect detection Anomaly detection in system and performance metrics Architect self-healing and adaptive automation frameworks Optimize test execution using data-driven and AI-assisted insights Automation & DevOps Integration Define and scale automation strategies across SIT and regression testing Integrate testing into CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions) Ensure continuous testing and shift-left quality practices Database & Data Engineering Validation Lead validation of large-scale data systems and pipelines Ensure: Data integrity across systems Accuracy of ETL and streaming pipelines High-volume transactional system reliability Optimize and validate: SQL queries, stored procedures NoSQL data consistency and performance Cloud & Distributed Systems Testing Drive testing strategies for cloud-native systems (Azure, AWS) Validate microservices and containerized applications (Docker, Kubernetes) Ensure reliability of distributed and event-driven architectures Defect Management & Root Cause Analysis Lead complex defect triage and deep root cause analysis across systems Resolve cross-layer issues involving: Application Database Infrastructure Establish proactive defect prevention mechanisms Mentorship & Technical Leadership Mentor and guide mid-level SIT engineers Act as a technical authority and escalation point Drive continuous improvement in: Testing processes Automation frameworks Tool adoption Stakeholder & Executive Communication Communicate quality, performance, and risk insights to leadership Translate technical findings into business impact and decision-making inputs Lead SIT governance meetings and cross-functional coordination What will help you thrive in this role Technical Expertise Testing & Automation Tools Selenium, Cypress (UI automation) Postman, REST Assured, Karate (API testing) Performance Testing JMeter, LoadRunner, Gatling, k6 Monitoring tools: Grafana, Dynatrace, AppDynamics Programming / Scripting Strong proficiency in: Python, Java, C#, or JavaScript Database Expertise Advanced SQL (query optimization, stored procedures) Experience with: Relational DBs: SQL Server, Oracle, PostgreSQL NoSQL: MongoDB, Cassandra Data pipeline validation (ETL, streaming systems) Cloud & DevOps Azure, AWS CI/CD: Jenkins, Azure DevOps, GitHub Actions Containers & orchestration: Docker, Kubernetes AI/ML (Preferred) Experience with: AI-driven testing tools Predictive analytics and anomaly detection Automation optimization using AI Key Competencies Strategic thinking and enterprise-level problem solving Strong leadership and technical mentoring skills Expertise in complex system integration and performance engineering Excellent communication and stakeholder management Ability to drive innovation and continuous improvement Preferred Experience Experience in large-scale, data-intensive systems Exposure to IoT, firmware, or hardware integration ecosystems Strong understanding of Agile, DevOps, and SRE practices Success Metrics Reduction in integration defects and production issues Achievement of performance SLAs and scalability goals Increased automation coverage and efficiency Improved SIT cycle time and release predictability Adoption of AI-driven testing practices 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 Unified Business Solutions Hubbell Unified Business Services (HUBS) provides corporate shared services to support all businesses across the enterprise. Functional areas include Engineering, Sales, Operations, Marketing, Finance, Legal, IT, Human Resources, Payroll, Environmental Health & Safety, and Compliance. HUBS employees are located around the world. 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.