SAP UI5 FIORI Developer

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).

Senior Embedded Software Engineer – U-boot, Linux Kernel & Device Drivers

Company Name: SAS One Pvt Ltd (www.sasone.in)

Location: Bengaluru, India

Experience: 6+ years

Job Summary:

We are looking for a highly skilled Senior Embedded Software Engineer experienced in Embedded C development, Linux Kernel programming, and Device Driver design. The ideal candidate will contribute to low-level software development for embedded systems, working closely with hardware teams to design, implement, and optimize drivers and kernel modules for next-generation platforms.

Key Responsibilities:

• Design, develop, and debug embedded software in C for SoM(System On Modules).
• Develop and maintain board support packages (BSPs), bootloaders, and low-level firmware.
• Work on real-time performance optimization, memory management, and inter-process communication.
• Develop and maintain Linux kernel modules and device drivers for various peripherals (I2C, SPI, UART, GPIO, USB, PCIe, HDMI, etc.).
• Collaborate with hardware engineers for bring-up, debugging, and validation of new boards.

Required Skills & Experience:

• Bachelor’s or Master’s degree in Electronics, Computer Engineering, or related field.
• 6+ years of hands-on experience in embedded software development.
• Strong proficiency in Embedded C.
• Deep understanding of Linux Kernel internals, device driver architecture, and hardware software interaction.
• Familiarity with ARM architecture, SoC bring-up, and YOCTO environments is a plus.
• Strong debugging and analytical skills, with the ability to work independently in fast-paced environments.

Preferred / Good-to-Have Skills:

• Exposure to Yocto Project, U-Boot, and bootloader customization.
• Experience with embedded Linux distributions or open-source contributions.
• Understanding of hardware schematics and signal analysis (oscilloscope, logic analyzer).

Experience & Education

• Experience: 6–8 years in SAP PP-QM (ECC or S/4HANA), with cross-module knowledge
• Education: Graduate in any discipline (minimum 4 academic years)
• Domain Expertise: Minimum 3 years in Planning, Production Control, or Shop Floor Management

Implementation & Technical Skills

• SAP Projects: Minimum 3 full-cycle SAP PP/QM implementations
• S/4HANA Exposure: Familiarity with Fiori, PPDS, ATP, and other innovations
• Production Process Mapping: Expertise in aligning organizational elements with production processes
• Demand Management & MRP: Strong command over planning, MRP, and execution
• Shop Floor Management: Production order Process and Configurations.
• Quality Management: Configuration of QM processes including notifications, inspections, calibrations, and interfaces
• PLM Integration: Experience with product lifecycle management and tools like Siemens Teamcenter, MES, Ariba, Supplier 360, Windchill
• Cross-Module Integration: Proficient in integrating with S/4HANA, PDR, and external systems
• Plant Maintenance (PM): Basic understanding and ability to handle minor PM-related tasks
• ABAP: Basic debugging and technical understanding

Work Culture & Responsibilities

• Independently manage PP/QM projects and support calls
• Collaborate across culturally diverse teams in Asia, Middle East, and Africa
• Conduct workshops to gather and analyze business requirements
• Deliver end-to-end SAP solutions: Blueprinting, Design, Functional Specs, Testing, Training, and Deployment
• Execute PP/QM enhancements and changes within defined timelines
• Manage master and transactional data migrations using SAP tools
• Ensure compliance with audit standards, information security, and GRCM guidelines

Value Additions

• Drive innovation in PP/QM functionalities beyond standard templates
• Actively contribute to ABB initiatives such as CSI, cost optimization, best utilization, and AppRun team efforts

Requirements:

• Very good programming knowledge in C/C++
• Experience in Multi-threaded software development
• Understanding of operating systems concepts, system performance, and optimization
• Familiar with working in an Embedded Linux development environment.
• Excellent problem-solving/debugging skills, design, development, troubleshooting, and debugging
• Knowledge of embedded tools like emulators, linkers, makefiles, etc
• Experience in voice applications development, preferably on client/server platforms
• Knowledge of RTOS programming will be added advantage.
• Understanding of different processors. microcontrollers architectures.
• Familiarity with development tools such as GCC, GDB, Eclipse, GNU Make, etc

Cloud EOS Team

·        Arista Networks is the leader in building software driven cloud networks for today’s datacenter, cloud and campus environments. Arista delivers the most efficient, reliable and high performance Universal Cloud Network architectures based on 10G, 25G, 40G, 50G, 100G and 400G platforms delivered with an extensible operating system – Arista EOS®. Arista EOS is built on an open, programmable, and resilient state-sharing architecture that delivers maximum system uptime, reduces CAPEX and OPEX by simplifying IT operations and enables business agility.

·        We are building disruptive products and services that deliver highly automated networks that interconnect and secure connectivity between various global locations. As a part of the team you will be exposed to wide variety of technologies like EOS (Extensible Operating System), multithreaded, multicore software forwarding based on DPDK, public cloud (AWS, Azure, GCP) infrastructure, Path selection, NFV, Containers, Network Segmentation, Virtualization, microservice based architectures, CI/CD pipelines, and Terraform-based declarative provisioning models. As a core member of the CloudEOS team, you will be part of a fast paced, high-caliber team building cutting edge software products for Cloud-enabled WAN connectivity. The team is responsible for all aspects of the development and delivery of control plane, software data plane, and management platform/APIs/services.

·        Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern software tools, methodologies and processes and emphasis on automation enables our engineers to focus their energies on the truly complex problems and be among the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments - this provides engineers the platform and rigour to learn and gain experience in building complex, scalable software systems.

Basic qualifications

·        Bachelor's/Master's degree in Engineering

·        3+ years of experience working as a Systems Software Development Engineer

·        Proficiency in C++/C programming language

·        Software Development experience with Linux

Preferred qualifications

·        Experience with DPDK, Software Forwarding, Qos.

·        Python and/or Golang development experience

·        Strong communication skills and the ability to work in a team environment

·        Experience working through the complete software development life cycle right from requirements gathering to delivering the fully developed feature.

·        Strong software debugging skills especially in embedded systems.

·        Experience in Network Systems Software development is a plus

EOS Routing Team

·        Arista Networks is the leader in building software driven cloud networks for today’s datacenter, cloud and campus environments. Arista delivers the most efficient, reliable and high performance Universal Cloud Network architectures based on 10G, 25G, 40G, 50G, 100G and 400G platforms delivered with an extensible operating system – Arista EOS®. Arista EOS is built on an open, programmable, and resilient state-sharing architecture that delivers maximum system uptime, reduces CAPEX and OPEX by simplifying IT operations and enables business agility.

·        The EOS Routing PI team is responsible for developing routing protocols like BGP, OSPF and ISIS and Data Center and SP technologies like MPLS, Segment Routing and EVPN. A unique feature of the Arista routing team is that the routing software is common across Campus, Data Center and Service Provider routing features. This is a global team that spreads multiple geographies working on cutting edge features that get deployed in the largest Cloud titan, Service Provider, Enterprise and Campus networks.

·        Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern software tools, methodologies and processes and emphasis on automation enables our engineers to focus their energies on the truly complex problems and be among the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments - this provides engineers the platform and rigour to learn and gain experience in building complex, scalable software systems.

Basic qualifications

·        Bachelor's/Master's degree in Engineering

·        3+ years of experience working as a Systems Software Development Engineer

·        Proficiency in C++/C and Python programming languages

·        Experience with routing protocols and/or Data Center/SP routing features

·        Software Development experience with Linux

Preferred qualifications

·        Strong communication skills and the ability to work in a team environment

·        Experience working through the complete software development life cycle right from requirements gathering to delivering the fully developed feature.

·        Strong software debugging skills especially in embedded systems.

·        Experience in Network Systems Software development is a plus

EOS Layer 2 and Infra PI Team

·        Arista Networks is the leader in building software driven cloud networks for today’s datacenter, cloud and campus environments. Arista delivers the most efficient, reliable and high performance Universal Cloud Network architectures based on 10G, 25G, 40G, 50G, 100G and 400G platforms delivered with an extensible operating system – Arista EOS®. Arista EOS is built on an open, programmable, and resilient state-sharing architecture that delivers maximum system uptime, reduces CAPEX and OPEX by simplifying IT operations and enables business agility.

·        The EOS Layer 2 PI and Infra team is responsible for working on platform independent features on Arista’s EOS working alongside the EOS Routing team. The team is responsible for building innovative, scalable solutions in areas including EOS infrastructure, Layer 2 protocols like 802.1X, Macsec, DHCP, RADIUS etc. A unique feature of the Arista’s Layer 2 PI and Infra team is that the software developed is common across Campus, Data Center and Enterprise features. This is a global team that spreads across multiple geographies working on cutting edge features that get deployed in the largest Cloud titan, Service Provider, Enterprise and Campus networks.

·        Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern software tools, methodologies and processes and emphasis on automation enables our engineers to focus their energies on the truly complex problems and be among the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments - this provides engineers the platform and rigour to learn and gain experience in building complex, scalable software systems.

Basic qualifications

·        Bachelor's/Master's degree in Engineering

·        3+ years of experience working as a Systems Software Development Engineer

·        Proficiency in C++/C and Python programming languages

·        Software Development experience with Linux

Preferred qualifications

·        Experience with Layer 2 protocols like 802.1X, AAA, Macsec

·        Strong communication skills and the ability to work in a team environment

·        Experience working through the complete software development life cycle right from requirements gathering to delivering the fully developed feature.

·        Strong software debugging skills especially in embedded systems.

·        Experience in Network Systems Software development is a plus