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Strong programming (Java, C/C++) and troubleshooting skill
Experience on Android telephony, connectivity framework
RIL
Familiarity and support of PTCRB/GCF certification process.
Knowledge a cellular test equipment and network IOT
IMS/Volte/SMS over IMS/Video calling and SIP signaling – Desired
Knowledge of QUALCOMM tools, QXDM, QRCT, ER & Analysis of logs.
Preferred - knowledge on 3GPP specs and GSM/GPRS/EGPRS/WCDMA/UMTS/LTE/TD-SCDMA standards
Preferred - Android apps (Calling, messaging, Sim toolkit
CC++Key Responsibilities
1. Kernel Lifecycle & Maintenance
Upstream Alignment: Lead the strategy for upgrading enterprise kernels (e.g., migrating from LTS 5.15 to 6.6) while maintaining binary compatibility where required.
Patch Porting: Expertly port functional and performance patches between disparate kernel versions, resolving complex code conflicts and API changes.
CVE Mitigation: Monitor the Linux Kernel Mailing List (LKML) and security advisories to identify and backport CVE patches from upstream to production environments.
2. Deep-Dive Debugging & Stability
Panic Analysis: Act as the final escalation point for Kernel Panics and "Oops" messages. Utilize kdump, crash, and gdb to perform post-mortem analysis of vmcores.
Boot-Time Resolution: Debug critical failures during the early boot process (UEFI handoff, initramfs, and early kernel init) where standard logging is unavailable.
Performance Tuning: Use ebpf, ftrace, and perf to identify bottlenecks in memory management, scheduler latency, or I/O throughput.
3. Driver Development & Hardware Integration
Driver Ownership: Design, develop, or maintain at least one Open Source or Proprietary Device Driver (Network, Storage, GPU, or Character devices).
Hardware Abstraction: Interface directly with hardware registers, managing DMA mappings, and optimizing interrupt handling (MSI-X, Threaded IRQs).
Out-of-Tree Management: Maintain driver compatibility across kernel updates using DKMS or similar frameworks.
4. Infrastructure & Automation
Registry Management: Oversee the distribution of custom kernel builds and modules via GitLab Container/Package Registries.
CI/CD for Kernel: Build automated testing pipelines (Hardware-in-the-loop) to validate kernel stability before enterprise-wide deployment.
Required Technical Skills:
Languages: Mastery of C/C++ Programming (C is preferred)
Kernel Internals: Deep understanding of VFS, Memory Management (MMU/Paging), Process Scheduling, and Networking Stacks.
Debugging Tools: Expert-level use of kprobes, trace-cmd, valgrind, and hardware-level debuggers (JTAG/Serial Console).
Build Systems: Proficiency with Kbuild, Makefiles, and building RPM/Debian packages for kernel distribution.
Security: Hands-on experience with SELinux/AppArmor policy development and kernel hardening (FIPS, KSPP).
SAMA, along with its team of senior experts in Electronics,
CJOB DESCRIPTION:
Position : Linux BSP developer
Location : Bangalore
Experience : 3 to 10 Years
Requirements :
- 3 to 10 Years of proficiency working on C and Embedded Linux BSP (Board Support Package).
- Highly proficient and possess working in Linux kernel and Linux device drivers.
- Hands on experience on working on platform of MIPS, ARM etc.
- Working knowledge and strong understanding of Device Tree.
- Understanding of Make files, their customization and Cross Compilation and Shell scripting.
- Experience in working on U-boot.
- Video and Camera domain knowledge will be a BIG advantage.
- Knowledge of secure boot would be an added advantage.
C++CThe Senior Software Engineer works with an experienced cross-functional team to deliver innovative wireless communication security products. They will utilize real world knowledge and a disciplined approach to product development, and adapt readily - Time-To-Market demands, ensuring product quality and timely delivery in a highly dynamic market environment.
ESSENTIAL FUNCTIONS :
- Design and deliver server platform based software products from conceptual stages to production delivery.
- Work independently on all phases of server centric software development including specification, architecture design, rapid prototyping, efficient coding, integration, debug and unit testing. Support UL and EN regulatory compliance
- Work collaboratively and effectively as part of a small team on fast paced projects that have tight deadlines.
- Support manufacturing life cycle for new products from NPI to production run and incremental software release of functionality.
- Lead, train, and mentor junior engineers
- Document and present design requirements to staff
- Possess a demonstrated ability to communicate with customers via email and phone
REQUIRED SPECIFIC JOB KNOWLEDGE, SKILL AND ABILITY :
The individual must possess the following knowledge, skills and abilities and be able to explain and demonstrate that he or she can perform the essential functions of the job, with or without reasonable accommodation, using some combination of skills and abilities.
- Must be an excellent SW developer. We expect experience developing software C/C++ in Linux and Perl. Other scripting languages is a plus (i.e. Python).
- Strong experience with SQL, Database design (MySQL a plus)
- Experience with Network Security Administration and understanding of the full SDLC.
- Experience with Multithread, Socket connection, OpenVPN server setup, OpenSSL, Certificate, Encryption, and TCP/IP troubleshooting.
- Experience with Testing tools, virtualizing servers, and using source control (SVN a plus).
- Experience with Linux development infrastructure, tool chain and build environment (Jenkins a plus).
- Experience developing both Linux application software; installing Linux software and configuring Linux systems.
- Experience with Application server remote update, and Apache Server authentication.
- Proven record of designing and delivering complex networking products from inception to production delivery.
- Previous experience developing quality software for commercial products.
- Experience with communication systems involving wireless, radio, security and mesh networking technologies is a plus.
Experience with OSI networking protocols and applications is a plus.
- Experience with system development tools, including Source-Level Debuggers, Protocol Analyzers (Wireshark), Code Analysis tools, etc.
- Experience with any of the following is nice to have: Apache Server, GPIO, TCL/Tk, BACnet, Cloud server setup, and WebGUI design (javascript and jQuery a plus).
C++
Python
C#
C++C- Working Experience in
· C and/or C++ programming
o Should have Project working experience in C or C++
o Should have done feature enhancement and/or Bug fixing using C/C++.
· System Programming knowledge in
o Muti-threaded programming, Process contexts/forks/execs and system calls
o IPCs (like Socket programming, Message Queues, semaphores)
o Linux Operating system
o File access calls, like file descriptor handled operations.
· Enterprise Security domain and SaaS
o IPSec, SSL VPN tunnelling
CC++About us:
Arista Networks was founded to pioneer and deliver software driven cloud networking solutions for large datacenter storage and computing environments. Arista's award-winning platforms, ranging in Ethernet speeds from 10 to 400 gigabits per second, redefine scalability, agility and resilience. Arista has shipped more than 20 million cloud networking ports worldwide with CloudVision and EOS, an advanced network operating system. Committed to open standards, Arista is a founding member of the 25/50GbE consortium. Arista Networks products are available worldwide directly and through partners.
About the job
Arista Networks is looking for world-class software engineers to join our Extensible Operating System (EOS) software development team.As a core member of the EOS team, you will be part of a fast-paced,high caliber team-building features to run the world's largest data center networks.Your software will be a key component of Arista's EOS, Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products.
The EOS team is responsible for all aspects of the development and delivery of software meant to run on the various Arista switches.You will work with your fellow engineers and members of the marketing team to gather and understand the functional and technical requirements for upcoming projects.You will help write functional specifications, design specifications, test plans, and the code to bring all of these to life.You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests.At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.
This role demands strong and broad software engineering fundamentals, and a good understanding of networking including capabilities like L2, L3, and fundamentals of commercial switching HW.Your role will not be limited to a single aspect of EOS at Arista, but cover all aspects of EOS.
Responsibilities:
- Write functional specifications and design specifications for features related to forwarding traffic on the internet and cloud data centers.
- Independently implement solutions to small-sized problems in our EOS software, using the C, C++, and python programming languages.
- Write test plan specifications for small-sized features in EOS, and implement automated test programs to execute the cases described in the test plan.
- Debug problems found by our automated test programs and fix the problems.
- Work on a team implementing, testing, and debugging solutions to larger routing protocol problems.
- Work with Customer Support Engineers to analyze problems in customer networks and provide fixes for those problems when needed in the form of new software releases or software patches.
- Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.
- Mentor new and junior engineers to bring them up to speed in Arista’s software development environment.
- Review and contribute to the specifications and implementations written by other team members.
- Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead.
Qualifications:
- BS Computer Science/Electrical Engineering/Computer Engineering 3-10 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 5 years experience, Ph.D. in Computer Science/Electrical Engineering/Computer Engineering, or equivalent work experience.
- Knowledge of C, C++, and/or python.
- Knowledge of UNIX or Linux.
- Understanding of L2/L3 networking including at least one of the following areas is desirable:
- IP routing protocols, such as RIP, OSPF, BGP, IS-IS, or PIM.
- Layer 2 features such as 802.1d bridging, the 802.1d Spanning Tree Protocol, the 802.1ax Link Aggregation Control Protocol, the 802.1AB Link Layer Discovery Protocol, or RFC 1812 IP routing.
- Ability to utilize, test, and debug packet forwarding engine and a hardware component’s vendor provided software libraries in your solutions.
- Infrastructure functions related to distributed systems such as messaging, signalling, databases, and command line interface techniques.
- Hands on experience in the design and development of ethernet bridging or routing related software or distributed systems software is desirable.
- Hands on experience with enterprise or service provider class Ethernet switch/router system software development, or significant PhD level research in the area of network routing and packet forwarding.
- Applied understanding of software engineering principles.
- Strong problem solving and software troubleshooting skills.
- Ability to design a solution to a small-sized problem, and implement that solution without outside help.Able to work on a small team solving a medium-sized problem with limited oversight.
Resources:
- Arista's Approach to Software with Ken Duda (CTO): https://youtu.be/TU8yNh5JCyw
- Additional information and resources can be found at https://www.arista.com/en/
C++C
CC++- Work directly with the other Software/Firmware Engineers and Electrical/RF/Systems Test Engineers to write needed software
- Design and implement software platform for firmware on embedded CPUs with multiple OS such as Windows, Linux, FreeRTOS, TI-RTOS and embedded Linux
- Use compliers, debuggers revision control and automated build systems.
- Design/develop components of software platform for use by other developers to extend its capabilities and build custom applications/behavior on top
- Develop build methodologies, debugging tools/utilities
- Develop and release Software using Agile methodology
- Write unit tests and support continuous integration and automated test methodology
- Brainstorm for new ideas and ways to improvement product and processes
- Consult with peers for feedback during debug/testing stages
- Document and maintain design processes
Cloud infrastructure solutions and support company. (SE1)
- Perform technical feasibility studies of new technologies and architectures, including evaluation of OTS cloud offering.
- Generate entire software image for the target device, including the kernel, device drivers, libraries, and application software, and the bootloader for proprietary IOT connectivity device(s).
- Software packaging with RPM building and management
- Define the process to upgrade the new Linux package to existing hardware at customer premises
- Configuration and Troubleshoot of the proprietary IOT connectivity devices for internal R&D teams during their development and verification
- Automate the creation and distribution of keys and certificates
- Understand, implement, and automate security controls for IoT connectivity devices.
- Tune server and application-level performance monitoring and alerting.
- Help define our roadmap and architecture based on technology and business needs, considering architectural issues and tradeoffs
- Understand and manage integration points with other systems that interface with your applications
- Supports development of project plans, including scope, budget, schedules, and risk management.
- Works closely with the business analysts, software development and verification team, the functional manager, and the program manager.
- Collaborate and work with global teams in multiple locations.
- Interface with Global Privacy and Security team for the IoT Gateway understand security risks and recommendations and provide solutions to mitigate the security risks
- Bachelor’s degree in Computer Networking / Computer Science / Software Engineering or a related field
- 12+ years of hands-on experience in Networking, shell scripting, and Linux internals, with a development background.
- Strong understanding of Networking concepts like VPC, Route tables, Host base router firewall, SSH, NAT, DNS, DHCP, SNMP, Virtual IPs, VPN
- Linux System Administration and Networking work experience
- Configuring Firewalls(IP tables/firewall) and security software
- Able to generate Linux packages, and configure based on business needs.
- Passion for cybersecurity. Ability to build secured Linux packages with antivirus and security patches.
- Shell, Python scripting experience
- Basic SQL skills
- Ability to work with cross-functional and remote teams. Must be able to communicate in English, both written and verbal.
- Interpersonal skills to effectively collaborate with vendors and customers.
- Experience with Agile Scrum
- Development background in Java/C++
- DevOps knowledge
- Knowledge on javascript
C++C
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