Quarkslab is a high-end cybersecurity company, highly skilled in vulnerability research and design of security solutions for a tailored level of defense.
QUARKSLAB’S SOFTWARE
softwares
Malware are growing faster than one software can analyze: combine all detections together.
softwares
Code & Data obfuscation to protect everywhere.
QUARKSLAB’S SERVICES
Defensive security
  • Security developments: crypto, protocols, fuzzers, patch system for outdated programs.
  • Cryptography design.
  • On-demand R&D: anti-root, disassembler, custom probes for IRMA.
Offensive security
  • Vulnerability, patch and exploit analysis
  • Cryptography and DRM pentesting
  • Software assessment
Training
  • Reverse engineering
  • Vulnerability research
  • iOS & Android pentesting
We provide tailored services for profound technical issues to leverage your data protection.
QUARKSLAB’S corporate DATA
CONFIDENTIALITY
As we work in sensitive environments we do
not disclose our clients’ references.
Realizations
> Multiple CVEs reported to Apple, Adobe, Microsoft, Siemens, Samsung, etc.
> Regular speakers in international conferences
eg. HITB, Hack.lu, CSW, PacSec, SSTIC.
> Capacity to assess software security certified by ANSSI.
> Open assessment of the Chatsecure application.
full-time employees
mainly security
researchers and developers.
thesis in progress
PhDs
Careers
The company

Quarkslab is building new tools to analyze what is going on our systems, from an ARM dynamic binary instrumentation to symbolic execution framework like Triton (http://triton.quarkslab.com) and several other advanced software security tools. System audits and vulnerability research must be taken to a new stage, as code bases are growing faster and faster. New tools need to be designed to help the security researchers in their daily work.

Founded 5 years ago, Quarkslab is working internationally since its origins. Whereas we are based in Paris (France), we are now opening offices in Japan and Argentina, where several open positions are available.


How to apply

Send a resume to the email address provided in the job description.

Explain in your message the relevant projects (links to published code is better!) you have been working on to demonstrate you fit the position and why you are applying. Make it personal, we are interested in people motivated to be involved in taking Quarkslab to a new stage.

We will reply with a small challenge to give us the opportunity to discuss both what we are building, and how you can bring your own experience in that.



Reverse engineers in Tokyo
Description

The position is based in Tokyo to work at a subsidiary dedicated to automotive security. The main job will be to assess security of car components (ECUs, like BCM, gateways, and other embedded systems) and some Industrial Control Systems (ICS).

You will have to assess the security of components which were never designed with security nor communication capabilities in mind, in an environment where IT was not even considered.

In this job, you will have to audit applications, system components, fuzz, reverse, find clever tricks for both our customers and our own R&D in order to deliver good results, like building an universal remote to open cars or taking over the engine to manipulate its parameters.

The Qb.jp team will also include automotive engineers knowing about car systems and electronics. So, knowledge in this topic is not mandatory.


Key Responsabilities
  • Specialized in reverse engineering (x86, ARM, MIPS, PPC, or weird CPU) to dig into assembly to assess security of car components
  • Develop internal tools for component analysis
  • Direct contact with customers to fulfill our missions

Requirements
  • 3+ years of experience in reversing whatever kind of software
  • Entrepreneur mindset to start a new job in a new subsidiary in a foreign country
  • Autonomous
  • Good writing and speaking in English, some skill in Japanese is a plus (lessons will be provided)
  • Programming language : Python, C/C++ and asm

Information
  • Job is full-time employment (FTE) based in Tokyo (Japan)
  • Contact: job-revjp(AT)quarkslab.com


Product Manager
Description

Quarkslab Software activities are focused on building new security products that automate simple tasks and assist information security people addressing the complex or hard problems. We are looking for an experienced Product Manager to provide a leading role in building and implementing our vision of what our security products should provide to our customers.

Ability to contribute to a product's vision and to build a roadmap, taking inputs from various sources, and making sure that we properly prioritize requests and deliver in time and with quality are keys to the role of the Product Manager at Quarkslab.

We are looking for someone with a culture in software development and security, motivation, and experience .

As Product Manager, you will be responsible for the product, its strategy, roadmap and feature definition. You will interact with developers, sales and marketing , C-level, customers, and partners,to define and explain product roadmap. Communication skills are crucial to the role. Critical thinking, ability to listen to all stakeholders with an open mind, and to clearly explain product decisions are just as important. Last but not least, you must be comfortable with capturing and prioritizing software requirements, balancing them and planning the delivery of products the fullfil them.


Main tasks
  • Prioritize and define the product roadmap in a transparent way.
  • Explain clearly what is the product, where it is going and what value it provides to customers and partners.
  • Facilitate development and sales, e.g by equiping each of them with adequate tools for the task
  • Orchestrate the go-to-market strategy for the product.

Skills
  • Mandatory
    • Software development experience, agile methodologies, devops tools and processes, systems engineering
    • Product management experience in the security industry
    • Programing with at least one managed (Java, Python, Javascript, C#, etc) and one unmanaged (C, C++, asm) programming language
    • Fluent English
  • Appreciated
    • Security: malware analysis, reverse engineering, vulnerability assessment, incident response
    • Software engineering technologies: compilers, debuggers, disassemblers, hypervisors, virtual machines
    • French speaking highly appreciated

Information
  • Job is full-time employment (FTE) based in Paris (France)
  • Contact: job-pm(AT)quarkslab.com


Junior system and network administrator
Description

Quarkslab, a high-end cybersecurity company founded 5 years ago, is looking for a junior system and network administrator to reinforce his team.


Key responsabilities
  • You will be in charge of:
    • the administration and the information system
    • the machines used by projects hosted internally and externally
  • You will prepare and perform production step, optimize performances, and ensure availability of the information system
  • You will also help non technical employees to configure and integrate their computers into the infrastructure
  • Initially, you will be helped by a senior administrator to understand the infrastructure specifics. Then you will achieve your duties independently as the same time as documenting you work

Profile
  • Team player, autonomy
  • Curiosity and ability to summarize
  • Ability to communicate clearly with other employees
  • Appetite for a geek work environment

Mandatory skills
  • Linux environment (Debian/Ubuntu)
  • Git
  • Shell and at least a scripting language (Python, Ruby, Perl, …)
  • Networks (VLAN, routing, firewall, …)
  • Enterprise services (DNS, LDAP, DHCP, …)
  • Technical English (you will have to interact with non French-speaking people)

Appreciated skills
  • Virtualization (libvirt, vSphere, …)
  • Backup methods
  • Large scale deployment (Ansible/Chef/Puppet)
  • Network configuration (switches, routers, wifi access point)
  • Knowledge in security

Minimum diploma
  • DUT/Licence pro/bachelor in computer science, specialization in system and network administration

Information
  • Job is full-time employment (FTE) based in Paris (France)
  • Contact: job-adminsys(AT)quarkslab.com