Designs and maintains embedded firmware for low-power wireless sensor devices. Responsibilities include BLE and Wi-Fi communication, sensor integration, real-time DSP and filtering, high-throughput data streaming, mesh protocols, NOR Flash data management, power optimization, and firmware debugging. The role uses Nordic nRF platforms and collaborates with hardware, mobile, and backend teams on system integration, RF performance, and sensor data pipelines.
Embedded Firmware Engineer – Wireless & SensorsLocation:
Job Overview
Key Responsibilities
Required Skills & Qualifications
Preferred Qualifications
Soft Skills
Hyderabad
Experience:4–6 years
We are looking for a skilled Embedded Firmware Engineer with strong experience in Bluetooth Low Energy (BLE) and embedded systems, along with a solid foundation in Digital Signal Processing (DSP). The ideal candidate will work on high-performance, low-power wireless devices involving sensor data acquisition, real-time streaming, and advanced signal conditioning using filtering techniques.
- Design, develop, and maintain firmware for embedded systems with a focus on Bluetooth Low Energy (BLE) communication
- Work with Wi-Fi and other wireless technologies (optional but preferred)
- Interface and integrate sensors such as:
- Accelerometers
- Gyroscopes
- Other IMU / environmental sensors
- Implement Digital Signal Processing (DSP) techniques for real-time sensor data analysis
- Design and apply filtering techniques such as:
- Low-pass, high-pass, and band-pass filters
- Moving average and exponential smoothing filters
- Sensor fusion filters (e.g., complementary filters, basic Kalman filtering)
- Develop solutions for high-frequency data acquisition and streaming over BLE and/or Wi-Fi
- Implement and optimize mesh communication protocols
- Work extensively with Nordic Semiconductor (nRF) platforms, including:
- nRF5 SDK
- nRF Connect SDK (NCS)
- Design and optimize data storage systems using NOR Flash, ensuring efficient:
- Data logging
- Retrieval
- Wear leveling (if applicable)
- Optimize firmware for:
- Low power consumption
- Bluetooth range and reliability
- System performance and latency
- Debug, test, and validate firmware using standard tools (JTAG, RTT, logs, etc.)
- Collaborate with hardware, mobile, and backend teams for system integration
- Strong experience in Embedded C/C++ programming
- Hands-on experience with BLE stack development and debugging
- Solid understanding of Digital Signal Processing (DSP) concepts, including:
- Sampling theory and aliasing
- Noise reduction techniques
- Time-domain and basic frequency-domain analysis
- Experience implementing filters on embedded systems for real-time data conditioning
- Experience working with sensor data acquisition and processing (IMU preferred)
- Solid understanding of:
- Real-time systems
- Interrupts, timers, and low-power modes
- Experience with nRF52/nRF54 series or similar MCUs
- Familiarity with high-throughput data transfer over BLE
- Experience with flash memory management
- Understanding of wireless communication fundamentals
- Experience in production-grade firmware development
- Familiarity with mobile app interaction (BLE central side)
- Exposure to power profiling and optimization tools
- Experience with OTA (Over-the-Air) firmware updates
- Knowledge of RTOS (Zephyr preferred for NCS)
- Experience with sensor fusion algorithms (e.g., orientation estimation using IMU data)
- Experience implementing or working with BLE Mesh or other mesh protocols
- Experience with Wi-Fi-based embedded systems
- Experience in wearable devices / IoT products
- Familiarity with FFT or spectral analysis in embedded environments
- Strong analytical thinking, especially for signal interpretation and noise handling
- Strong problem-solving and debugging skills
- Ability to work independently and in cross-functional teams
- Good communication and documentation skills
- Work closely with hardware engineers to co-design power-efficient systems
- Align on RF performance tuning and BLE/Wi-Fi optimization
- Enable efficient sensor data pipelines and storage systems
- Jointly debug system-level issues across hardware and firmware
Similar Jobs
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Leads AI transformation, governance, quality oversight, risk management, and responsible adoption across Pfizer Global Supply and QSEO. Establishes GxP-compliant AI lifecycle practices, inspection-readiness frameworks, governance forums, portfolio monitoring, inventory management, metrics, and reporting. Advises senior leaders on AI regulations, deployment risks, investment priorities, and compliance while leading cross-functional initiatives and influencing stakeholders across Quality, Digital, Operations, and R&D.
Top Skills:
Ai GovernanceAiqasAirifArtificial IntelligenceComputerized SystemsGxpImexLeanMachine LearningSix Sigma
Fintech • Financial Services
Manages a Systems Operations team supporting CI/CD platforms across on-premises and cloud environments. Oversees platform stability, incident and problem management, infrastructure upgrades, change execution, shift coverage, monitoring, DORA metrics, automation, and AI use cases. Leads stakeholder collaboration, risk and compliance activities, staffing, resource allocation, talent development, and technical capability expansion across CI/CD tools.
Top Skills:
AIBlack DuckCheckmarxCi/CdGenerative AiGitGithub ActionsHarnessJenkinsJfrog ArtifactoryKubernetesUrbancode Deploy
Fintech • Financial Services
Manages commercial banking loan portfolios by researching credit information, evaluating borrower performance and financial statements, identifying risks, and preparing recommendations. The role requires analyzing complex credit situations, assessing borrower creditworthiness, synthesizing market and financial data, supporting compliance and risk programs, improving processes, and collaborating with internal stakeholders and customers.
Top Skills:
AgentspaceGithub CopilotMicrosoft CopilotExcelMoody'S Risk AnalyticsTachyon
What you need to know about the Hyderabad Tech Scene
Because of its proximity to leading research institutions and a government committed to the city's growth, Hyderabad's tech scene is booming. With plans to establish India's first "AI city," the city is on track to become one of the world's most anticipated tech hubs, with companies like TransUnion, Schrödinger and Freshworks, among others, already calling the city home.
