Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 84 days ago

Principal Engineer — Python is a must

SonicWall50 open roles

Where
Bengaluru, Karnataka, India
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowPrincipal Engineer — Python is a mustSonicWall · Bengaluru, Karnataka, India

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on SonicWall's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

11.8% of postings close within 7 days. Measured by our own scanner across the market. SonicWall postings stay open a median of 34 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.8%7 days
  4. 18.6%14 days
  5. 35.6%30 days
  6. 45.1%60 days
This job: posted 84 days ago

SonicWall median: 34 days open

The posting

For more than 30 years, SonicWall has delivered a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network security, endpoint security, security service edge (SSE), and threat response across hybrid environments. By bringing connected technology, real-time threat intelligence, automation, and expert services together, SonicWall helps organizations simplify security operations, achieve better security outcomes, and lower total cost of ownership. Backed by a global ecosystem of more than 17,000 partners, SonicWall delivers enterprise-grade protection built for SMB and mid-market realities.

For more information, visit www.sonicwall.com or follow us on X, LinkedIn, Facebook, and Instagram.

We are seeking an experienced Principal Software Engineer to lead the architecture, development, and evolution of a large-scale malware analysis and cybersecurity platform. This role will own the end-to-end technical architecture across Python-based analysis pipelines, message-driven job orchestration systems, Windows VM sandbox environments, and web-based interfaces.

The ideal candidate brings deep expertise in software engineering, malware analysis, and distributed systems, with a proven ability to take ownership of complex legacy platforms and drive modernization initiatives. You will lead the design and implementation of advanced detection capabilities, including behavioral analysis, malware sandboxing, machine learning-based classification, and support for new file types, while ensuring platform scalability, reliability, and performance.

This position requires strong hands-on development skills in Python with Linux-based production environments, messaging architectures such as RabbitMQ, virtualization technologies, and cloud-native deployment practices. As the technical leader for the platform, you will establish engineering standards, guide architectural decisions, reduce technical debt, mentor senior engineers, and ensure the long-term maintainability and success of the system.

Responsibilities

  • Own the end-to-end technical architecture of both platforms: the SonicSandbox analysis pipeline (static analysis, dynamic VM analysis, and machine learning) and the UrlProtection microservices (URL reputation, machine learning, and browser automation).
  • Lead the design, development, and delivery of new detection capabilities across both products.
  • Define and drive technical direction, including architecture, coding standards, testing practices, and technical debt prioritization.
  • Own the complete software delivery lifecycle, from solution design and development through Docker/Debian packaging and production deployment.
  • Ensure production stability and service reliability by monitoring platform health, leading incident response, and driving root cause analysis and resolution.
  • Provide technical leadership, mentorship, and guidance to two Senior Software Engineers.
  • Partner with cross-functional teams to align technical initiatives with product and business objectives.

Requirements

  • Minimum of 10 years of software engineering experience with a Bachelor's degree in Computer Science, Engineering, or a related field; or 8 years with a Master's degree; or 6 years with a PhD; or equivalent professional experience.
  • Expert-level Python development experience, including asynchronous programming (asyncio, aiohttp, FastAPI), multithreading, and distributed task processing architectures using RabbitMQ, Taskiq/Redis, Celery, or similar technologies.
  • Strong proficiency in C and C++ with experience owning and maintaining compiled software components.
  • Experience with KVM/libvirt or comparable virtualization and hypervisor technologies.
  • Deep understanding of malware analysis, sandbox technologies, cybersecurity platforms, or related security software.
  • Hands-on experience deploying and managing machine learning inference workloads in production using frameworks such as PyTorch, LightGBM, scikit-learn, or ONNX.
  • Experience building or supporting production-scale headless browser automation pipelines is preferred.
  • Strong knowledge of MySQL, Microsoft SQL Server, Redis, MongoDB, and Consul, along with experience managing containerized applications using Docker and Docker Compose.
  • Demonstrated ability to lead large, complex codebases spanning multiple systems and services.
  • Excellent written communication skills and experience collaborating effectively within distributed, asynchronous engineering teams.

#LI-KB7

#LI-Hybrid

#Python

#Devops

#MSSQL

SonicWall is an equal opportunity employer.

We are committed to creating a diverse environment and are an equal opportunity employer. All qualified applicants receive consideration for employment without regard to race, color, ethnicity, religion, sex, gender, gender identity and expression, sexual orientation, national origin, disability, age, marital status, veteran status, pregnancy, or any other basis prohibited by applicable law.

At SonicWall, we pride ourselves on recruiting a diverse mix of talented people and providing active security solutions in 100+ countries.

Applicant Privacy Notice

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against SonicWall's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on SonicWall's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    SonicWall's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.