Role Summary: Create automated tests for medical device firmware using software-in-the-loop (SIL) testing and enhance the supporting framework and hardware simulations. Strong embedded C/C++ development experience is essential for understanding firmware design, selecting effective test scenarios, investigating failures, and adapting firmware for SIL execution. Python is used for tests and simulations. Familiarity with Python is strongly preferred; candidates must be willing and able to develop proficiency. Key Responsibilities: · Analyze firmware requirements, architecture, C/C++ source code, design principles, and existing test procedures to identify test scenarios, establish expected behavior, and develop automated tests with clear requirements traceability · Adapt C/C++ firmware and its operating system and hardware interfaces to support host-based SIL execution · Develop and maintain Python test scripts, reusable libraries, hardware simulations, and test utilities within the existing SIL framework, extending the framework to support additional subsystems and products · Develop positive, negative, boundary-condition, and fault-injection tests covering functional behavior, interfaces, fault handling, recovery, and state transitions, including timeouts, sequencing, and concurrency-related behavior within SIL capabilities rather than assuming target-equivalent execution timing · Run tests, assess results, reproduce defects, and investigate failures throughout the firmware, interface adaptations, simulations, framework, and test code to distinguish product defects from test-environment issues · Integrate tests with Azure DevOps (ADO), GitHub, and CI workflows · Collaborate with embedded software, systems, architecture, verification, and quality engineers to improve testability · Develop repeatable, isolated tests with reliable setup and cleanup, clear assertions, versioned firmware and test configurations, review records, and retained results to support regression testing and use in formal verification · Improve framework reliability, simulation fidelity, execution efficiency, and test coverage; identify differences between simulated and target behavior that could affect test validity Key Requirements/Minimum Qualifications: · Bachelor’s or Master’s degree in Computer Engineering, Electrical Engineering, Computer Science, or related field · 8–10 years of relevant experience grounded in hands-on embedded software/firmware development; experience limited to general software automation or SDET work is not a substitute for this foundation · Strong embedded C/C++ firmware development experience and understanding of firmware architecture, design principles, microcontrollers, peripherals, hardware interfaces, platform software, and abstraction layers · Hands-on experience with real-time operating systems (RTOS) and OS abstraction concepts · Demonstrated ability to learn new programming languages and tools, and willingness to build Python proficiency for test automation, framework extensions, and hardware simulation · Experience developing automated tests for embedded systems and using firmware design and source-code analysis to select test scenarios and investigate failures; prior SDET job experience is not required · Good understanding of real-time system fundamentals, including scheduling, interrupts, concurrency, timing behavior, communication interfaces, and fault handling · Experience with medical device software development and IEC 62304 lifecycle practices · Knowledge of risk-based verification, requirements traceability, configuration management, and objective test evidence · Familiarity with Python, particularly for test automation or engineering tools · Experience with pytest, test doubles, mocking, hardware simulation, and code coverage; familiarity with static analysis, CMake, or containerized test environments is a plus · Prior exposure to SIL or hardware-in-the-loop (HIL) testing, or specific RTOS platforms such as ThreadX or FreeRTOS · Experience improving an existing test automation framework · Strong debugging, log analysis, root-cause analysis, and problem-solving skills · Ability to develop clean and maintainable automation code · Ability to work independently and collaborate with cross-functional teams · Attention to detail, structured thinking, and strong ownership · Ability to translate requirements and product risks into executable and traceable automated tests Work hours: 1 PM to 10 PM IST ATTENTION: Current Alcon Employee/Contingent Worker If you are currently an active employee/contingent worker at Alcon, please click the appropriate link below to apply on the Internal Career site. Find Jobs for Employees Find Jobs for Contingent Worker Alcon is an Equal Opportunity Employer and takes pride in maintaining a diverse environment. We do not discriminate in recruitment, hiring, training, promotion or other employment practices for reasons of race, color, religion, gender, national origin, age, sexual orientation, gender identity, marital status, disability, or any other reason. At Alcon, we are committed to helping people see better. We believe patients should have access to quality eye care regardless of their economic circumstances; however, barriers to good eye health exist for patients in both developed and emerging markets. Alcon develops and manufactures innovative devices to serve the full life cycle of eye care needs. Its surgical group is one of the largest makers of equipment used for cataract removal and laser vision correction. Its consumer products include the well-known Opti-Free line of contact lens solutions and related products. Alcon, which was founded in 1945, sells its products in 180 countries worldwide. If you are currently an active employee/contingent worker at Alcon, please click the appropriate link below to apply on the Internal Career site. Find Jobs for Employees Find Jobs for Contingent Worker

Software Development Engineer in Test (SDET) – Embedded Firmware / SIL – Senior Engineer, GJFA 6 Level 1  .

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