Full-Time

Offensive Security Consultant

Updated on 9/3/2026

Deloitte

Deloitte

10,001+ employees

Global professional services and auditing

No salary listed

Paris, France

In Person

Category
Cybersecurity (1)
Required Skills
PowerShell
Bash
PHP
Microsoft Azure
Python
Reverse Engineering
LDAP
Microsoft Windows
Computer Networking
Java
.NET
Vulnerability Analysis
C#
AWS
iOS/Swift
Penetration Testing
C/C++
Android Development
DevOps
Linux/Unix
Google Cloud Platform

Get referred to Deloitte

See people who can refer or advise you

Requirements
  • You have significant, successful, and demonstrable experience within a penetration-testing team.
  • You have in-depth knowledge of several of the following areas: Windows, Linux, and Mac operating systems; security and network architecture; web security and the Open Worldwide Application Security Project methodology; Active Directory security; continuous integration and continuous delivery security; Java and .NET thick-client auditing; Android and iOS mobile security; Azure, Amazon Web Services, and Google Cloud Platform security; Python, Bash, PowerShell, and C# programming; threat intelligence, reconnaissance, information gathering, and open-source intelligence.
Responsibilities
  • Identify vulnerabilities through penetration tests on client environments and assess their security level.
  • Dump website databases, compromise Active Directory directories, and gain root access to servers connected to specific information systems.
  • Analyze application source code, including PHP and Python, and the configuration of underlying components such as Apache and Secure Shell.
  • Find attack paths in cloud technologies such as Entra ID and Amazon Web Services, and reverse-engineer thick clients written in Java, .NET, C, and C++.
  • Provide expertise on specific assignments, including code audits and penetration tests of uncommon technologies such as large language models, kiosks, and electronic payment terminals.
  • Maintain and develop the team's tools, infrastructure, and resources, including tool adjustment and fine-tuning.
  • Collaborate with international penetration testers and specialists on technical subjects.
  • Conduct research, publications, and other activities that develop the team's technical prominence.
  • Contribute operationally and strategically to the team.
  • Conduct research and publication, create and maintain internal tools, and develop open-source intelligence capabilities.

What Deloitte does: Deloitte provides professional services to organizations, offering a range of services including consulting, auditing, tax, and advisory work to help clients improve performance and manage risk. How its products work: It blends practical advice with hands-on implementation through a global network of member firms and specialists. Teams assess clients’ needs, develop strategies, and help execute processes, controls, and transformations while upholding professional standards and integrity. How it differs from competitors: It operates at a large scale with a global network of diverse professionals, bringing cross‑disciplinary expertise and a wide range of services to many industries, which allows it to address complex challenges from multiple angles. What its goal is: To help clients and society become stronger by enabling sustainable progress and responsible growth through trusted services and collaboration.

Company Size

10,001+

Company Stage

Late Stage VC

Total Funding

$17.1M

Headquarters

Madrid, Spain

Founded

1845

Get referred to Deloitte

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • August 2026 AI launches expand client demand for enterprise transformation and audit automation.
  • Omnia's agentic workflows can compress delivery time and deepen client dependence.
  • The DOJ settlement removes one distraction, letting leadership refocus on growth and AI.

What critics are saying

  • DOJ settled $21.5 million on August 25, 2026 over DEI contracting practices.
  • Deloitte UK plans up to 175 audit redundancies amid stagnant revenue and low attrition.
  • Federal consulting cuts already forced 2025 layoffs; more contract losses hit 2026 demand.

What makes Deloitte unique

  • Deloitte's Omnia, Enterprise AI Navigator, and ControlCatalyst.AI show deep, productized consulting capability.
  • Its nearly 85,000-person Audit & Assurance bench creates scale competitors struggle to match.
  • Global federal, audit, and risk relationships give Deloitte cross-sell power across industries.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Professional Development Budget

Hybrid Work Options

Company News

Business Insider
Jan 29th, 2026
AI forces companies to rethink hiring practices as job applications surge and entry-level pipelines shrink

Business Insider convened 15 HR and C-suite leaders in Davos to discuss how AI is reshaping hiring and talent pipelines. The roundtable, presented by Indeed, revealed growing concerns about entry-level positions and skills assessment. Deloitte's Elizabeth Faber emphasised maintaining a "human-led, technology-powered" approach whilst carefully navigating reduced junior hiring. TCW's Melissa Stolfi noted her firm has downsized its analyst class but maintains a pyramid structure to preserve apprenticeship culture and future leadership pipelines. Indeed's chief economist Svenja Gudell warned that whilst tech employers now demand five-plus years' experience, this creates future talent shortages if junior hiring continues declining. Salesforce's Nathalie Scardino said her company receives two million applications annually and has shifted focus from years of experience to learning aptitude. Manpower Group's Becky Frankiewicz noted AI can process candidates faster whilst reducing bias, potentially unlocking opportunities beyond traditional qualifications.

Yahoo Finance
Jan 20th, 2026
Deloitte to hire 50,000 employees in India, eyes Mangaluru expansion

Deloitte plans to hire 50,000 employees in India and is evaluating Mangaluru, Karnataka, as a potential new location, according to South Asia CEO Romal Shetty. The company currently employs 140,000 people in India, representing one in four Deloitte employees globally. Shetty said India hosts 50% of all global capability centres worldwide, with significant growth potential in Tier II and Tier III cities. He proposed creating digital economic zones integrating GCCs, GPU-based data centres, startups and academic institutions to accelerate expansion. The CEO called for streamlining GCC setup processes from six months to two weeks, whilst acknowledging infrastructure constraints around energy and water for data centres. Shetty noted Mangaluru offers advantages including talent availability and real estate, adding the company's presence there is a matter of timing.

PR Newswire
Oct 31st, 2025
Deloitte Invests in Kihomac for Drones

Deloitte has invested in Kihomac to enhance U.S. drone manufacturing, aiming to strengthen national security and supply chains. This investment will allow Kihomac, a veteran-owned company, to expand production in Utah and mass-produce drones for U.S. government agencies and businesses. Deloitte's support will create manufacturing jobs and secure the supply chain for American customers.

La Tercera
Jul 14th, 2025
Deloitte Acquires Virtus Partners in Chile

Deloitte has acquired 100% of Virtus Partners, founded by Gonzalo and Marcelo Larraguibel, to enhance its strategic consulting business in Chile. This acquisition aims to offer comprehensive solutions from strategy design to execution. Deloitte's CEO, Christian Durán, emphasized the significance of this move in strengthening their market position. The merger combines Deloitte's global capabilities with Virtus Partners' local expertise, offering a unique strategic consulting platform in Chile.

Yahoo Finance
Jul 4th, 2025
Deloitte Canada Acquires Fintech Firm Allevar

Deloitte Canada has acquired Toronto-based fintech firm Allevar, enhancing its capabilities in regulatory compliance and technology solutions. Allevar specializes in fraud management, AML, payment systems, and KYC regulations, crucial for Canadian banks and the financial services industry. Allevar's leadership, including CEO Dan Wood, will join Deloitte's Regulatory Risk practice. This acquisition aligns with Deloitte's strategy for growth in the digital and AI age.