Bluetooth Developer | Mirafra Technologies | Bangalore

Mirafra Technologies; Bengaluru; On-site; INR 1,400,000 - 2,200,000; Full time

Job summary

Mirafra Technologies in Bengaluru, India, seeks an experienced Bluetooth Developer to lead the design, development, testing, and optimization of BLE and Classic Bluetooth protocol stacks in embedded SoCs using C/C++.

You will optimize power, work with RTOS, conduct debugging with analyzers, and document firmware architectures while collaborating with hardware, systems, and QA teams in Agile sprints.

Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, Electronics, Electrical Engineering, or related field.
• 2.5–6 years of embedded systems, firmware, and wireless protocol experience.
• Strong C programming for resource-constrained MCUs.
• Deep knowledge of Bluetooth specs (BLE 4.2/5.x) and profiles.
• Experience implementing Bluetooth stacks and HCI/UART SPI transport.
• Proficient with debugging tools (JTAG, SWD) and RF protocol sniffers.
• Excellent English communication and cross-functional collaboration.
• Willingness for on-site work in Bangalore, India.

Responsibilities

• Design, develop, and maintain embedded Bluetooth protocol stacks (BLE/Classic).
• Implement, customize, and optimize HCI, L2CAP, ATT/GATT, SMP, and GAP layers.
• Configure and optimize HCI UART/SPI transports and Link Layer controllers.
• Perform protocol tracing, RF analysis, power profiling, and RCA.
• Collaborate with hardware, firmware, and QA teams in Agile sprints.
• Document firmware architectures and runbooks; support on-site activities.

Skills

C programming

RTOS

Bluetooth protocol

Embedded systems

Power management

English communication

Education

Bachelor’s degree in CS/CE/EE

Tools

JTAG/SWD

Bluetooth sniffers

Logic analyzers

Job description

Position Summary

Mirafra Technologies is actively seeking an experienced, high-caliber, and technical Bluetooth Developer with 2.5 to 6 years of progressive professional experience in short-range wireless communications, embedded systems, and Bluetooth protocol stack development to join our client engineering team on a full-time permanent on-site basis in Bangalore, India. In this critical embedded software and wireless engineering role, you will be responsible for designing, developing, testing, and optimizing Bluetooth Low Energy (BLE) and Classic Bluetooth protocol stacks, profiles, and Host Controller Interface (HCI) drivers. You will leverage your deep specialist expertise in C programming, real-time operating systems (RTOS), and wireless microcontrollers to deliver uncompromised short‑range connectivity, low power consumption, and operational excellence. This opportunity offers competitive compensation, executive technical visibility, and exceptional career growth prospects within a premier global semiconductor and embedded engineering enterprise.

Detailed Job Description

As a Bluetooth Developer supporting Mirafra Technologies in Bangalore, India, you will take full operational, tactical, and technical ownership of Bluetooth stack integration, profile implementation, low‑power optimization, and wireless debugging across mission‑critical IoT and consumer silicon platforms. Your day‑to‑day responsibilities include designing, writing, testing, and maintaining robust C and C++ source code for embedded Bluetooth SoCs, implementing and customizing upper and lower layer protocols including L2CAP, ATT, GATT, SMP, and GAP, configuring and optimizing Host Controller Interface (HCI) UART/SPI transports and Link Layer controllers, collaborating closely with cross‑functional hardware engineering, systems architecture, and QA squads in Agile sprint cycles, conducting rigorous protocol analyzer tracing, RF packet sniffing, power profiling, and root cause analysis (RCA) to resolve complex wireless interaction anomalies, preparing comprehensive technical documentation of firmware architectures, profile specifications, and operational runbooks, and managing application requirements by sending your updated resume via direct email to Susmita Ghosh at [e-mail] (please mention the position name in the email subject line). You will utilize your proactive troubleshooting and analytical problem‑solving skills to resolve complex Bluetooth synchronization and power management bottlenecks under strict service level agreements. Furthermore, you will manage application requirements ensuring strict compliance with the 2.5 to 6 years experience requirement and Bangalore on‑site presence.

Key Responsibilities

• Design, develop, test, debug, and maintain robust embedded software and Bluetooth protocol stacks utilizing C programming.
• Implement, customize, and optimize Bluetooth Low Energy (BLE) and Classic Bluetooth profiles, services, and characteristics (GATT/ATT).
• Configure and manage Host Controller Interface (HCI), Link Layer, L2CAP, security manager (SMP), and generic access (GAP) layers.
• Execute systematic board bring‑up, hardware debugging, RF protocol analyzer tracing, and power consumption profiling.
• Collaborate seamlessly with cross‑functional hardware engineering, firmware architecture, and wireless validation squads.
• Conduct rigorous code profiling, memory footprint reduction, and ultra‑low‑power sleep mode optimization for battery‑operated devices.
• Resolve complex connection dropouts, pairing failures, and interoperability defects with rapid root cause analysis.
• Maintain accurate, comprehensive technical documentation of firmware specifications, API interfaces, and operational runbooks.

Required Qualifications & Skills

• Bachelor’s degree in Computer Science, Computer Engineering, Electronics, Electrical Engineering, or a related technical discipline.
• Minimum of 2.5 to 6 years of progressive professional experience in embedded systems design, firmware development, and wireless protocols.
• Strong, demonstrable hands‑on professional expertise in advanced C programming for resource‑constrained embedded microcontrollers.
• Comprehensive working knowledge and practical proficiency in Bluetooth specifications (BLE 4.2/5.0/5.2/5.3 and Classic Bluetooth).
• Deep practical experience implementing Bluetooth profiles (HID, Audio/A2DP, BLE GATT services) and protocol layers.
• Solid practical experience utilizing embedded debuggers (JTAG/SWD), logic analyzers, and Bluetooth protocol sniffers (Ellisys, Frontline).
• Exceptional analytical, troubleshooting, debugging, and problem‑solving capabilities under high‑pressure conditions.
• Excellent written and verbal English communication skills with strong cross‑functional collaboration and technical documentation abilities.
• Mandatory legal work eligibility and physical availability for full‑time on‑site professional operations in Bangalore, India.

Nice‑to‑Have Skills

• Professional certifications such as Certified Embedded Systems Engineer or Bluetooth SIG qualification engineering credentials.
• Prior professional working experience in top‑tier semiconductor companies, Bluetooth IP vendors, or consumer electronics enterprises.
• Hands‑on familiarity with Real‑Time Operating Systems (FreeRTOS, ThreadX, Zephyr) and bare‑metal firmware architectures.
• Experience utilizing automated continuous integration and testing frameworks for embedded software (CI/CD for firmware).
• Exposure to agile hardware/software development methodologies and enterprise ITSM ticketing platforms (Jira, Confluence).

Recruitment Details

• Salary: Market Competitive / Enterprise Engineering Package
• Contract Duration: Permanent / Full‑Time On‑Site Engagement (Bangalore, India)
• Notice Period: Immediate to 60 Days Preferred
• Deadline: Open until filled (Urgent Bangalore Bluetooth Developer Opening)