Senior Automation Test Engineer – Embedded BLE / RTLS
Job Description
We are seeking a Senior Automation Test Engineer to join our engineering team as an individual contributor responsible for automation framework development and system-level testing of our BLE-based Real-Time Location System (RTLS) product family, The ideal candidate will have strong experience in embedded product testing, BLE-based systems, and automation using Python and C/C++, with a solid understanding of hardware–software integration across the complete product lifecycle.
Responsibilities
- Design and own a scalable Python-based automation framework for system, integration, regression, HIL and E2E validation of BLE RTLS workflows.
- Develop test harnesses for MQTT topics, AWS IoT Device Shadows, Greengrass/edge components, REST/GraphQL APIs, protobuf/message schemas, telemetry replay, and cloud/edge orchestration workflows.
- Automate BLE validation for advertising, scanning, CTE/AoA-related data paths, GATT/L2CAP interactions, connection handling, RSSI/IQ telemetry collection, role transitions and device state changes.
- Develop reusable simulators, stubs, replay tools and contract tests to reduce dependency on expensive RF/HIL lab execution while preserving system-level confidence.
- Debug failures across embedded firmware, BLE/RF, RTOS tasks, edge services, cloud orchestration, MQTT/shadow synchronization, database/cache layers and external integrations.
- Collaborate with firmware, hardware, cloud, edge, DevOps and system test teams to convert HLD/TRD requirements into executable test cases, automation backlog, risk-based coverage and measurable acceptance criteria
Required Technical Skills
- Expertise in Python automation framework development using pytest/unittest, fixtures, parametrization, mocking, logging, multiprocessing/async execution, robust reporting and maintainable test architecture.
- Hands-on embedded system validation experience with BLE-based products, real-time constraints, firmware state machines, boot flows, power modes, hardware interfaces and field-device diagnostics.
- Strong understanding of BLE fundamentals: advertising, scanning, GATT, L2CAP, connection parameters, RSSI, BLE 5.1+ CTE/AoA concepts, sniffer-based debugging and packet/log analysis.
- Experience automating hardware-in-loop setups using serial/UART, TCP/UDP, USB, GPIO/relay control, programmable power supplies, current analyzers, logic analyzers and BLE sniffers.
- Working knowledge of C/C++ for firmware-level debugging, log interpretation, test hooks, protocol parsing and collaboration with embedded developers.
- Experience with Linux-based edge systems, Docker/containerized test environments, service orchestration, logs, process control, networking and shell scripting.
- Knowledge of MQTT, message brokers, protobuf/JSON payloads, REST/GraphQL APIs, AWS IoT Core, Device Shadows, Greengrass concepts, certificates and secure device communication.
- Experience with CI/CD integration using tools such as GitHub Actions, Jenkins, GitLab CI, Azure DevOps, Octopus or equivalent, including automated reporting and release gating.
- Strong debugging and root-cause analysis skills with the ability to isolate defects across firmware, hardware, RF, edge services, cloud APIs, databases/caches and network layers.
Minimum Qualifications
Bachelor's or Master's degree in Electronics, Electrical, Computer Science or a related engineering discipline.
6+ years of experience in embedded product testing or automation, with at least 3+ years building Python-based automation frameworks for integration/system validation.
Proven experience automating embedded hardware, BLE/IoT devices or connected products with physical test setup integration.
Strong understanding of system validation lifecycle, test design, defect isolation, traceability, release regression and quality metrics.
Ability to work independently as a senior individual contributor and drive automation architecture, implementation, reviews and continuous improvement.
Location
Willing to work in Bengaluru or Tanjore, Tamil Nadu, India
