Chaitanya Tata, Developer in Hyderabad, Telangana, India
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Chaitanya Tata

Verified Expert  in Engineering

WiFi Developer

Hyderabad, Telangana, India

Toptal member since June 26, 2024

Expertise
FirmwareRTOSUbuntuCVisual Studio DevelopmentPythonDjangoReact.jsMathematicsWeb DevelopmentGraphQLPostgreSQLSpring BootC++
Bio

Chaitanya is a software developer specializing in wired and wireless networking, with a focus on WiFi technologies. His comprehensive experience spans collaboration with OEMs, IP providers, test equipment providers, and SOC vendors. An expert in various wifi standards, Chaitanya has a deep understanding of WiFi product commercialization, feature development, tool application, and network management systems (NMSs), along with chip integration from radio frequency (RF) and MAC to SOC level.

Portfolio

Self-employed
C, Python 3, OpenWRT, TIP OpenWiFi, Real-time Operating System (RTOS), Zephyr...
Capgemini Engineering
Python 3, Django, C, React, GraphQL, PostgreSQL, Spring Boot
Novelty Data Solutions
C, Python 3, C++17, Django, Linux Device Driver, Firmware...

Experience

  • WiFi - 17 years
  • C - 15 years
  • Linux Device Driver - 13 years
  • Wi-Fi Protected Access (WPA) - 11 years
  • Firmware - 10 years
  • Pre-silicon Validation - 8 years
  • OpenWRT - 6 years
  • Zephyr - 3 years

Availability

Part-time

Preferred Environment

Ubuntu, Visual Studio Code (VS Code)

The most amazing...

...thing I've done was integrate a Full-MAC (FMAC) WiFi driver into Zephyr RTOS, ensuring compliance with open-source software (OSS) and Zephyr policies.

Work Experience

Freelance

2022 - PRESENT
Self-employed
  • Integrated and upstreamed an FMAC WiFi driver into Zephyr RTOS, ensuring compliance with OSS and Zephyr policies, as well as adherence to coding standards.
  • Integrated wpa_supplicant into Zephyr utilizing Mbed TLS, fulfilling the role of the first supplicant in the system. Maintained and collaborated on WiFi components, including HostAP, stack, and drivers within Zephyr.
  • Played a crucial role in achieving Wi-Fi Alliance (WFA) WiFi 6 certification for the nRF7002 chip— the first in Zephyr. Worked on porting the WFA device under test (DUT) and Qt agent to Zephyr and resolved multiple test failures.
  • Integrated and upstreamed Mesh++'s S618 product into TIP OpenWiFi, enabling management via OpenWiFi and a proprietary solution. Implemented offline monitoring capability.
Technologies: C, Python 3, OpenWRT, TIP OpenWiFi, Real-time Operating System (RTOS), Zephyr, WiFi, Pre-silicon Validation

Expert II | Senior Manager II

2021 - 2022
Capgemini Engineering
  • Led the development of an NMS for WiFi systems from inception to minimum viable product (MVP). Gathered requirements and worked on architecture development, design, and execution while overseeing teams in three regions.
  • Ramped up device management protocols and contributed to strategic planning, collaborating with top management to establish a comprehensive strategy and roadmap.
  • Headed cross-functional, globally dispersed teams as the sole point of contact (POC) for clients, adhering to both client's and Capgemini's project management tools and processes.
Technologies: Python 3, Django, C, React, GraphQL, PostgreSQL, Spring Boot

Lead Software Engineer

2018 - 2021
Novelty Data Solutions
  • Established the India software team from the ground up, managing recruitment, onboarding, training, and project management, and successfully integrated them with the UK team working remotely.
  • Ramped up on WiFi IEEE 802.11ad software, including drivers and firmware, helped tape out the wifi chip, and developed tools for device deployment—from factory testing to provisioning and hardware testing.
  • Enhanced software quality by integrating it with CI systems like Zuul and Jenkins, utilizing eBPF for semantic validation, deploying it via Ansible and Docker, and creating a Python-based test automation framework.
Technologies: C, Python 3, C++17, Django, Linux Device Driver, Firmware, Quick EMUlator (QEMU), SNMP, NETCONF, REST, React, Web Development

Experience

Zephyr RTOS WiFi

https://github.com/nrfconnect/sdk-nrf
Served as the main contributor to WiFi development in Nordic's Zephyr fork and the upstream Zephyr project. I integrated Nordic's wifi chip into Zephyr, incorporated wpa_supplicant, and ported WFA DUT and Qt agent for WiFi 6 certification from the WFA. Also, I assumed the role of a wifi maintainer within the Zephyr RTOS OSS project.

Education

2003 - 2007

Bachelor's Degree in Electrical Engineering

Mahatma Gandhi Institute of Technology (MGIT) - Hyderabad, India

Certifications

NOVEMBER 2023 - PRESENT

Zephyr Maintainer

The Linux Foundation

MARCH 2014 - MARCH 2023

Project Management Professional (PMP)

Project Management Institute (PMI)

Skills

Libraries/APIs

React

Tools

Zephyr

Languages

C, Python 3, GraphQL, C++17

Platforms

Ubuntu, Visual Studio Code (VS Code), OpenWRT, Quick EMUlator (QEMU)

Industry Expertise

Telecommunications

Frameworks

Django, Spring Boot

Paradigms

REST

Storage

PostgreSQL

Other

Wireless, Linux Device Driver, Firmware, SNMP, TIP OpenWiFi, WiFi, Pre-silicon Validation, Device Drivers, Real-time Operating System (RTOS), Network Stack, Wi-Fi Protected Access (WPA), IT Project Management, Mathematics, NETCONF, Web Development, Sphinx

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