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About SigTuple
About
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Desired Candidate Profile For Embedded Developer Role
1. Proficient in C language
2. Proficient in Linux application development, TCP/IP protocol, multi-threaded programming, basic encryption algorithm,
3. familiar with Linux system commonly used API and commands, proficient in basic debugging means and methods.
4. Proficient in STM32 and other SCM development, skilled in using Keil and other integrated development environment,
5. proficient in serial port communication programming, Bluetooth, GPIO, SPI, EEPROM and other development, proficient in basic debugging means and methods.
6. Have basic hardware skills and knowledge, can draw PCB and read circuit diagrams, can use an oscilloscope and other tools for debugging.
7. Familiar with embedded system, free-RTOS, RT-Thread, etc.
8. Fluency in both spoken and written English.
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Responsibilities:
You will get a chance to create products from scratch. While you will get the advantage of the scale of the organization, you are expected to come up with creative solutions to challenging problems.
On a typical day, you'd work with highly skilled engineers to solve complex problems. This is an early-stage initiative. Your ability to translate business requirements, and develop and demonstrate quick prototypes or concepts with other technology teams will be of great value.
You will learn and work on a variety of languages such as C/C++, python, and Linux as well as work on BLE, MEMS, biometric sensors, and the latest wireless technologies.
Requirements:
6+ years of Embedded firmware development experience in C/C++
BLE/GPS/GSM/RTOS stack expertise
Hands-on experience with Lab equipment (VNA/RSA/MSO etc).
Testing environment setup using automation scripts and networking equipment, practices for the full software development life cycle, including coding standards, code reviews, source control management, continuous
Familiar with Wireless/IoT network protocols and standards.
Experience with microcontrollers, sensors, and serial communication.
Preferred experience with wearOS/TizenSuperior presentation and communication skills, both written and verbal
Bachelor/Masters's degree in electrical/electronic/communications engineering, information technology, physics, or a related field from
Tier 1 Tier 2 Engineering colleges only (IITs/NITs/IIITs/BITS etc. )
Result-oriented and ready to take ownership. Exhibit strong team
- 32-bit Microcontroller knowledge is essential (ARM Cortex based micro-controllers (STM32).
- Esp32 architecture knowledge is essential.
- Strong experience in C, C++, Free-RTOS
- Strong experience in CUBEMX IDE, MDK Version 5 – Keil, Arduino IDE environment
- Good knowledge in HW and communication protocols like CAN, SPI, UART, I2C, USB
- Good knowledge in TFT Displays and Sensors is added advantage
- Good knowledge of implementation of motor controls as required, pulse width modulation schemes (PWM).
- Good knowledge of power electronics (TRIACs, MOSFETs, IGBTs, gate drivers) and require protections (Over/under voltage/current).
- Document firmware designs, specifications, test plans, revisions and produce test reports
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Senior BLE Firmware Software Engineer
About Company
https://espressif.com/">Espressif Systems (688018) is a public multinational, fabless semiconductor company established in 2008, with headquarters in Shanghai and offices in Greater China, India and Europe. We have a passionate team of engineers and scientists from all over the world, focused on developing cutting-edge WiFi-and-Bluetooth, low-power IoT solutions. We have created the popular ESP8266 and ESP32 series of chips, modules and development boards. By leveraging wireless computing, we provide green, versatile and cost-effective chipsets. We have always been committed to offering IoT solutions that are secure, robust and power-efficient. By open-sourcing our technology, we aim to enable developers to use Espressif’s technology globally and build smart connected devices. In July 2019, Espressif made its Initial Public Offering on the Sci-Tech Innovation Board (STAR) of the Shanghai Stock Exchange (SSE).
Espressif has opened a Technology Center in Pune (Baner), India, which will focus on embedded software engineering and IoT solutions development for our growing customers.
About the Role
Espressif is looking for Embedded Software Engineers to join the software department located in India. You will work in a diverse team where your colleagues are from Czech, Russia, India, Australia and so forth. Here, you get a chance to be a member of the core team in Espressif and work with talented engineers from all over the world.
The BLE Firmware Development Team is now focused on the development of the Bluetooth 5.x standard and BLE Mesh standard.
BLE FW Team is looking for a self-starting, high-technical, energetic individual with keen attention to details. The Candidate will be actively involved in:
- Development of Bluetooth Low Energy (BLE) Firmware for Espressif Bluetooth chips.
- Development of new firmware for BLE latest specification (BLE 5.x, BLE Mesh, etc).
- Development of BLE chip validation and Bluetooth Qualification.
- Research of cutting-edge and challenging Bluetooth technologies (BLE Audio, BLE Direction Finding, Next-Generation BLE Chip, etc).
- Supporting the existing firmware through feature additions, enhancements and maintenance.
- Working with systems team and cross-functional teams to deliver quality software following well-established software development processes.
- Resolving issues as reported by internal test teams as well as customers.
Requirements
Required skills
- Bachlor's degree or above in Electronic Engineering, Communications Engineering, Automation or other related majors
- Familiarity with Bluetooth Low Energy (BLE) protocol or BLE Mesh protocol
- Proven experience in developing BLE stack / firmware (2+ years, both BLE host and controller) or BLE Mesh stack (2+ years)
- Experience with software engineering processes and the full software development lifecycle including requirements, design, implementation, testing, and documenting in Continuous Integration environment
- Strong experience and proficiency in C programming (3+ years) for embedded platforms required
- Excellent problem solving and debugging skills
Bonus point
- Experience in developing BLE profiles and BLE applications (e.g. HID, ANCS, Homekit, etc)
- Good understanding of other networking protocol stacks is highly desired (e.g. Zigbee, IEEE 802.11, UWB, Lora, NB-IoT, etc)
- Strong Real-time systems and software engineering skills required (e.g. FreeRTOS, etc)
- One or more scripting languages (e.g. Python, etc)
- Experience with variety of software productivity tools (e.g. Git, Jira, etc)
What to expect from our interview process
- The first step is to email your resume or apply to the relevant open position, along with a sample of something you have worked on such as a public GitHub repo or side project etc.
- Next, post shortlisting your profile recruiter will get in touch with you via a mechanism that works for you e.g. via email, phone. This will be a short chat to learn more about your background and interests, to share more about the job and Espressif, and to answer any initial questions you have.
- Successful candidates will then be invited for 2 to 3 rounds of technical interview as per previous round feedback.
- Finally, Successful candidates will have interview with HR.
What you offer us
- Ability to provide technical solutions, support that fosters collaboration and innovation.
- Ability to balance a variety of technical needs and priorities according to Espressif’s growing needs.
What we offer
- An open minded, collaboration culture of enthusiastic technologist.
- Competitive salary
- 100% company paid medical/dental/vision/life coverage
- Frequent trainings by experienced colleagues and chances to take international trips, attend exhibitions, technical meetups and seminars.
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Summary:
The embedded systems engineer designs, develops, tests, and maintains embedded systems. The engineer will identify and fix issues and work collaboratively with engineers, product managers, and others on various teams.
Responsibilities:
- Design and build embedded systems, including embedded system firmware
- Test and debug the systems
- Monitor and maintain the system after development
- Improve system efficiency and stability after development
- Collaborate with customers to create systems based on their needs
Requirements:
- Minimum of a bachelor's degree in computer science or engineering
- Professional experience in embedded systems
- Significant programming experience in C or C++
- Experience in trouble-shooting embedded systems and microcontroller peripherals
- Experience in working in real-time operating systems
- Experience in interfaces, IP protocols, and hardware subsystems
- Proficiency in working with common embedded systems communication protocols
- Strong interpersonal and writing skills
- Ability to work as part of a team
- Exceptional analytical and problem-solving skills
- Self-motivated and passionate about your work and embedded systems
- Always eager to learn and improve
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Must have Skilled and Should Currently have Hand-on experience:
- Programming Language: C, C++
- Operating System: Linux
- Debugging Tools: Valgrind / GDB - required
- Version Control: (Stash- nice to have) & (Git – Required)
- Build and Deployment: Bamboo – nice to have
- Operating System: Linux
- Experience: 5 to 8 years (Min. 4 years)
Email protocols: IMAP, pop, SMTP, etc
You can discuss the below job profile with the candidate before filtering them to the first round.
Role:
- Would be working on Development and Production Support of Email Mx Product which uses email protocols (POP, IMAP, and SMTP) developed on C, C++ technology on Linux Platform.
- Technologies they get to learn: C, C++, GDB, Valgrind, python (python to a certain extent).
- Protocols they get to learn: POP, IMAP, and SMTP and also any and every communication happening in Email Platform
- Source Control: Git, Stash
- Build and Deployment: Bamboo
- Operating System: Linux
- Debugging a Multicomponent – Multi-Threaded – Multi-Server Environment of a Live Product Deployed to Tier – 1 Customer.
- Opportunity for Improving CPU of exiting product.
- Opportunity for Memory optimization along with some good
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As part of the role, the Developers / Senior Developers will be responsible for Design, Coding, and Integration while meeting the quality targets set for the project. The Tech Leads will be additionally responsible for Estimation, Architecture, Design, Technical Reviews, Customer Interaction, Building, and Mentoring a talented team of Engineers
Knowledge & Skills:
- Technical Experience on Physical Layer of 3GPP LTE
- Experience on DSP Development\
- Proficient in C Good
- understanding of Wireless Communications
- Experience on MAC-PHY interface
- Behavioral Interpersonal skills & Ability to work in team
- Good Communication Skills Good Analytical Skills
Desired Skills and Experience:
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