Firmware Developer

Landis and Gyr

Firmware Developer

Top rate- Depending on expereince top rate is 70

Onsite Alpharetta GA

Years Exp : 5-10 years Education : Bachelor or master's degree in Computer science / Electronics / Electrical Engineering Experience with : - Programming C, C++ - Firmware development for an embedded system - RTOS - Development Tools : IAR, Oscilloscope, Logic analyzer - Repository Management Tool : Git / Gerrit / Jenkin - Exposure to Product Life Cycle and Software Development methodologies - Familiarity with Wireless communication and Networking protocols - Experience with RF networks, security encryption and packet-based networks are desirable. - Experience with protocol stacks such as 802.15.4e, 6LowPAN, SNMPv2 / 3, DHCPv6, FTP is desirable.

Additional Skills & Qualifications

Must have : - Experience in Embedded Software / firmware development on an embedded system (RTOS) - Proficiency in Embedded C / C++ - Experience in SPI / UART / I2C / USB communication. - Must have worked on ARM / Renesas / Silab SoC or Microcontroller. - Experience in board bring up / debugging is desirable. - Experience in stack development for Networking protocol like IPv6 / DHCP / TCP / UDP and RF communication protocols like IEEE802.15.4 / Zigbee / LoRA - Development Tools : IAR, Oscilloscope, Logic analyzer - Repository Management Tool : Git / Gerrit / Jenkin - Familiarity with Wireless communication and Networking protocols - Experience with RF networks, security encryption and packet-based networks are desirable. - Experience with protocol stacks such as 802.15.4e, 6LowPAN, SNMPv2 / 3, DHCPv6, FTP is desirable. Good to have : - Knowledge of Open-source protocol like CoAP / MQTT / Wireless Security - Experience in software development for Metering protocols (DLMS / COSEM / ANSI) - Any scripting language such as Perl, Bash, Python or TCL - Experience in Linux internals / system programming

• One round : Virtual Panel interview with Vidya and 2 members of technical team Interview Questions : -
• How many years of experience with board bring up? If so at which Companies did you do board bring up on your resume?

How many years of experience with microcontrollers do you have? If so at which companies listed on your resume?

Do you have experience with debugging tools?

SPI Interface : How did you configure microcontroller? - how did you figure out the configuration & make sure it was optimum?

Have you read a data sheet for an interface match / microcontroller?

do you know how to use hardware timers?

How do you manage time in an embedded system?

How do you configure SPI / UART?

how did you manage data traffic

what was the pull rate in which you recieved data?

How do you decide the frequency of pulling so that you do not lose data?

have you written code in C Language?

are you familiar with memory location in c language?

do you have linux experience?

Do you have low level linux experience?

how comfortable are you in writing your own driver?

do you know how SPI works?

How / what tools do you use to determine what is causing memory leaks?