Test Automation Engineer

At Tata Technologies we make product development dreams a reality by designing, engineering and validating the products of tomorrow for the world's leading manufacturers. Due to our continued growth we are now recruiting for a Automotive Test Engineer to be based at our office in Warwick. Our Embedded Systems Solutions department (ESS) encompasses all activities outlined under the Automotive SPICE (ASPICE) process framework, including systems engineering, software engineering, coding, and all levels of functional testing. Beyond core development, ESS also integrates critical supporting processes such as project management, risk assessment, functional safety, and cybersecurity, ensuring compliance with ASPICE standards and delivering reliable, secure, and high-quality embedded systems & solutions., We are seeking a highly skilled Automotive Test Automation Engineer to join our Validation & Verification team, with strong hands-on expertise in Battery Management Systems (BMS) and EV Charging domains. You will design, develop, and maintain sophisticated test automation frameworks and Hardware-in-the-Loop (HiL) environments, leveraging Tracertronic ECU-TEST, Vector CANoe with EVSE Toolkit, and National Instruments platforms. A defining aspect of this role is leading the adoption of Behavior-Driven Development (BDD) for automotive test scenarios - authoring test specifications in Gherkin format, driving test generation from requirements, and executing them on HiL benches within GitLab CI/CD pipelines. Area of Responsibility

1. Test Automation Framework Development

• Architect, develop, and maintain a scalable test automation framework for BMS and EV Charging ECU validation, integrating Tracertronic ECU-TEST as the primary test execution engine.

• Design reusable Python-based test libraries and utility modules for HiL bench control, signal stimulation, measurement capture, and automated pass/fail evaluation.

• Integrate ECU-TEST projects with NI VeriStand and Vector CANoe environments to orchestrate end-to-end automated test execution.

• Implement framework features including test data management, parameterized test execution, parallel test runs, and structured test reporting.

2. Behaviour-Driven Development (BDD) & Test Generation

• Lead the BDD practice for BMS and Charging domain test cases - collaborate with systems engineers and product owners to define acceptance criteria in plain English.

• Author clear, structured Gherkin feature files (Feature, Scenario, Scenario Outline, Given-When-Then, Background, Examples tables) that directly trace to system requirements and safety goals.

• Drive automated test generation from requirements documents and FMEA items - convert system behaviors, fault conditions, and boundary cases into executable Gherkin scenarios systematically.

• Maintain BDD scenario libraries covering normal operation, fault injection, boundary conditions, and regression for BMS and EVSE charging functionality.

3. Tracertronic ECU-TEST Expertise

• Design and implement modular ECU-TEST test packages, test cases, test steps, and configuration sets for BMS and charging system validation.

• Develop ECU-TEST Python packages and plug-in scripts to extend framework capability - custom report generators, bench state managers, and signal verification utilities.

• Configure ECU-TEST tool connections for CANoe, NI VeriStand, INCA, and diagnostic interfaces (UDS/OBD) within a unified test project.

4. BMS Domain Test Coverage

• Develop and execute automated HiL tests covering the full BMS functional scope: SoC/SoH/SoP estimation, cell balancing (active/passive), thermal management, contactor sequencing, and isolation monitoring.

• Automate low-voltage (LV) tests: CAN/LIN/SPI/I2C communication validation, DTC generation, UDS diagnostic service testing, and power mode transitions.

• Automate high-voltage (HV) protection tests: OVP, UVP, OTP, OCP, short-circuit detection, pre-charge validation, HVIL loop verification, and safe-state transitions.

• Implement data-driven test generation for boundary-value analysis, equivalence partitioning, and stress testing across cell voltage, temperature, and current parameter spaces.

5. EV Charging System Test Coverage

• Automate AC charging (Level 1/2) and DC fast charging (CCS1/CCS2, CHAdeMO) test scenarios on HiL benches using Vector EVSE Toolkit and NI tools.

• Validate ISO 15118-2/20 communication stack behavior: session setup, contract certificate handling, power delivery negotiation, and session teardown.

• Implement BDD scenarios for charging edge cases: cable plug/unplug during charge, EVSE fault injection, communication timeout handling, and re-connection recovery.

• Automate interoperability regression suites for software updates to the On-Board Charger (OBC) and Charging Control Unit (CCU).

· Bachelor's or Master's degree in Electrical Engineering, Computer Science, Mechatronics, Automotive Engineering, or a closely related discipline. · Experience in automotive test automation with a focus on HiL environments. · Proven expertise in Behavior-Driven Development (BDD) - writing Gherkin Test Cases and driving test generation from requirements. · Hands-on proficiency with Tracertronic ECU-TEST: test package design, tool connections, Python scripting, ATX reporting, and CI integration. · Strong Python 3.x programming skills - object-oriented design, modular architecture, unit testing (pytest), and packaging. · Experience writing Python scripts for HiL bench control, CAN message parsing, test data generation, and automated reporting. · Expert proficiency with Vector CANoe for bus simulation, test module development, and CAPL scripting. · Hands-on experience with Vector EVSE Toolkit for AC/DC charging station simulation (IEC 61851, ISO 15118, DIN SPEC 70121). · Familiarity with HIL tools (dSPACE, Vector VT System, NI PXI, or equivalent). · Ability to generate comprehensive test suites from requirements documents, FMEAs, and safety analyses using systematic test design techniques. · Proficiency with relevant Python libraries: python-can, cantools, pandas, numpy, jinja2, requests, and parameterized testing utilities. · Demonstrated hands-on experience building and maintaining GitLab CI/CD pipelines - authoring .gitlab-ci.yml files, defining multi-stage workflows, and configuring GitLab Runners. · Solid understanding of BMS architecture: CMU, BCU, BJB, cell chemistry, SoC/SoH/SoP estimation, balancing, and thermal management. · Knowledge of BMS protection algorithms: OVP, UVP, OTP, OCP, isolation monitoring (IMD), HVIL, and safe-state logic. · Understanding of EV charging architecture: OBC, CCU, charging standards (SAE J1772, IEC 62196), and EVSE communication protocols. · Familiarity with HV electrical safety fundamentals relevant to 400V/800V battery systems. · Experience with ISO 26262 functional safety verification - ASIL-tagged test cases, safety goal coverage, and safety case evidence. · Exposure to V2G (Vehicle-to-Grid), bidirectional charging (ISO 15118-20), or second-life battery testing.

In return for bringing your expertise to our business we offer a competitive salary along with excellent benefits including: · Pension Scheme - We match employee contribution up to 5% of salary · 25 Days' Holiday · Private Health Care · Tata Jaguar Land Rover Privilege Scheme - up to 20% off new JLR vehicles · Group Income Protection · Health Assured - Employee Assistance Program · Group Life Assurance · Health Shield - Private Health Cash Plan If you are passionate about bringing innovation to the projects you work on and want to join a global company, then this is the place for you. Tata Technologies: Engineering a better world.

#ComeJoinUs in #EngineeringABetterWorld. We're a global product engineering and digital services company focused on fulfilling our mission of helping the world drive, fly, build, and farm by enabling our customers to realize better products and deliver better experiences. We're the strategic engineering partner businesses turn to when they aspire to be better. Manufacturing companies rely on us to enable them to conceptualize, develop and realize better products that are safer, cleaner, and improve the quality of life for all the stakeholders, helping us achieve our vision of #EngineeringABetterWorld. We're inspiring a new generation of engineers who, by embracing the opportunities that exist at the convergence of digital technology & traditional engineering, are developing better products. We're redefining what the world understands by engineering and spreading the influence and impact of engineering as humanity's best way of addressing its most important challenges and opportunities.