QA Lead

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).

We are looking for Senior Software Engineers responsible for designing, developing, and maintaining large scale distributed ad technology systems. This would entail working on several different systems, platforms and technologies.Collaborate with various engineering teams to meet a range of technological challenges. You will work with our product team to contribute and influence the roadmap of our products and technologies and also influence and inspire team members.

Experience

• 3 - 10 Years

Required Skills

• 3+ years of work experience and a degree in computer science or a similar field
• Knowledgeable about computer science fundamentals including data structures, algorithms, and coding
• Enjoy owning projects from creation to completion and wearing multiple hats
• Product focused mindset
• Experience building distributed systems capable of handling large volumes of traffic
• Fluency with Java, Vertex, Redis, Relational Databases
• Possess good communication skills
• Enjoy working in a team-oriented environment that values excellence
• Have a knack for solving very challenging problems
• (Preferred) Previous experience in advertising technology or gaming apps
• (Preferred) Hands-on experience with Spark, Kafka or similar open-source software

Responsibilities

• Creating design and architecture documents
• Conducting code reviews
• Collaborate with others in the engineering teams to meet a range of technological challenges
• Build, Design and Develop large scale advertising technology system capable of handling tens of billions of events daily

Education

• UG - B.Tech/B.E. - Computers; PG - M.Tech - Computer

What We Offer:

• Competitive salary and benefits package.
• Opportunities for professional growth and development.
• A collaborative and inclusive work environment.

Salary budget upto 50 LPA or hike20% on current ctc

you can text me over linkedin for quick response

Job Description:

We are looking for a highly skilled Software Developer with 3-5 years of hands-on experience in LAMP Stack development. The ideal candidate will be responsible for developing and maintaining web applications, ensuring high performance, and collaborating with cross-functional teams to define and ship new features.

Key Responsibilities:

• Develop, maintain, and optimize web applications using LAMP Stack (Linux, Apache, MySQL, PHP)

• Design efficient, scalable, and secure backend systems.

• Collaborate with frontend developers and project stakeholders to deliver high-quality products.

• Write well-structured and testable code, following best practices in PHP.

• Troubleshoot, debug, and upgrade existing applications.

• Develop APIs and integrate third-party services.

• Manage and maintain databases using MySQL.

• Perform system and server maintenance on Linux/Unix environments.

• Use Shell scripting to automate routine tasks and deployments.

• Work with the ELK stack (Elasticsearch, Logstash, Kibana) for logging and monitoring.

Qualifications:

• BE/B.Tech in Computer Science/Information Technology/Electronics and Communications

• 3-5 years of proven experience as a Software Developer working with LAMP Stack

• Proficient in PHP, and MySQL.

• Solid experience with Linux/Unix environments, including command-line proficiency.

• Knowledge of Shell Scripting and basic system automation.

• Familiarity with ELK Stack for application monitoring and logging.

• Strong understanding of web protocols, API integration, and database optimization.

• Experience with version control systems like Git.

• Ability to work in an Agile environment and manage multiple tasks efficiently.

Nice to Have:

• Experience with other Python frameworks besides Flask.

• Knowledge of cloud platforms (AWS, Google Cloud) for deploying and scaling applications.

• Familiarity with containerisation technologies like Docker.

Benefits:

• Competitive salary and performance bonuses.

• Medical and insurance coverage.

• Opportunities for professional development and growth.

• Flexible working hours and remote working options.

Are you convinced that the people are the most invaluable part of all organizations? Are you interested in becoming a part of one of the hottest trends in the world of start-ups today? Are you excited about joining the online ultra-fast grocery delivery service business pioneer and driving the trend forward? Then this may be the right opportunity for you.

1. Scour the ends of planet earth in search of solid personalities and technical skill sets that will flourish within Blok.
2. Act as a brand ambassador for Blok. Strive to provide a candidate experience that is not Blok-centric, but rather candidate-centric. We may not work with all candidates, but all should have positive impressions about Blok.
3. Evaluate candidates within their own unique context. Always bear in mind that people have their own unique stories.
4. Not be limited by our current ways of sourcing candidates. Find new ways. Create them if necessary. Widen the range whenever possible.
5. Work together with interviewers from the technology team to accurately determine candidates’ technical expertise.
6. Travel (Covid-permitting!) to places that become major sources of recruitment, both to conduct real-time interviews and follow-up with onboarded talents.
   Requirements

1. English is an absolute must. An increasing percentage of our candidates use English as their language of preference.
2. Energy. Quickly absorb Blok's unique energy, and exert that energy in your communication with potential recruits. You are, after all, an outward-facing representative of Blok, a startup that is a pioneer in the ultra-fast grocery delivery industry.
3. Resilience, because often you’ll get hyped about a potential candidate, but for one of many valid reasons, it may not work out. Remember that matching job-seekers with employers is after all a rather complicated matching process.
4. We should know the rules to win the war for talent. Bear in mind legislative processes and cross-cultural differences.
5. Previous background in talent acquisition, especially in early-stage technology-first startups would be a strong advantage.
6. The ability to evaluate technical skills is preferred, but not an absolute requirement.
   
   Who You Are

1. A visionary, who is invested in the vision of making Blok a world-class, people-centric organization.
2. An empath, who sees the success of their organization and its people as their own success.
3. A perpetual learner, who stretches their boundaries and enjoys new ideas.
4. A doer, who takes initiative regardless of boundaries and works well in a team.

1. Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
2. Writing tested and documented JavaScript, HTML and CSS
3. Make design and technical decisions for AngularJS projects.
4. Ensuring high performance