Computer Security Jobs

We are Optedif Formation, a French training organization delivering short professional training programs for adults, entrepreneurs, employees, freelancers, job seekers and people in career transition. We are looking for experienced trainers, instructors or subject-matter experts in Secure Development to deliver short training sessions in French. The training may be delivered remotely or on-site depending on the learners' needs. Scope of Work The selected freelancer will be expected to: - Deliver short training sessions in French - Adapt explanations to adult learners - Share practical and operational knowledge - Answer learners' questions during the session Required Expertise We are looking for expertise in one or more of the following areas: - DevSecOps - OWASP (Top Ten / AS...

I'm seeking a skilled digital forensics expert to assist with my project. Key Requirements: - Analyze digital devices (computers, mobile phones, external storage). - Recover data and find evidence. - Prepare findings for legal purposes. Ideal Skills: - Experience in data recovery. - Proficient with forensics tools and techniques. - Strong analytical and reporting skills. - Background in law enforcement or cyber security is a plus. Please provide past project examples and relevant certifications.

I need help setting up my new Lenovo Slim laptop and troubleshooting some issues. Specific tasks include: - Setting up and configuring OneDrive, as I'm encountering a strange access error message when trying to load documents. Ideal skills and experience: - Experience with Lenovo laptops and OneDrive - General troubleshooting expertise - Ability to connect and configure internet settings

I need an experienced network-security professional to conduct an in-depth threat analysis of our cloud infrastructure. The environment spans several AWS accounts with VPC peering, Transit Gateway routing, and a mix of Kubernetes clusters and serverless workloads. Your job is to map likely attack vectors, evaluate existing controls, and clearly articulate the real-world risks we face. I will grant read-only access to relevant CloudTrail, GuardDuty, and VPC Flow Logs as well as diagrams of our current architecture. Feel free to weave in additional tooling such as Nmap, Nessus, Wireshark, Metasploit, or custom scripts—whatever produces the most accurate picture. Deliverables • Threat model highlighting assets, actors, and entry points • Evidence-backed risk ratings wi...

My production Kubernetes cluster needs hands-on assistance migrating the networking layer from its current, rather intricate CNI to either Cilium (eBPF with WireGuard) or Calico with WireGuard encryption. The overriding goal is a seamless, zero-downtime cut-over while preserving all of our existing custom NetworkPolicies—east-west, ingress, and egress traffic must continue to behave exactly as it does today. Scope of work The engagement starts with a deep-dive into the present topology, routing rules, and policy objects. From there, a step-by-step migration playbook and rollback plan must be crafted, executed first in staging, then in production. Once live, I need empirical data that compares both solutions: latency, throughput, CPU and memory overhead, and encryption overhead und...

We are seeking a highly skilled, discreet, and expert Cyber Security Specialist / Internal Systems Auditor to monitor platform integrity, investigate staff activities, and ensure strict compliance with company policies. The ideal candidate will operate quietly to identify system abuses, fraudulent activities, and policy violations. Key Responsibilities Audit & Investigation: Actively monitor and investigate the activities of all staff members (from new hires to 20+ year veterans). Threat & Error Detection: Identify system errors, duplicate accounts, fake profiles, and malicious actors within the network. Account Actions: Permanently block and suspend accounts involved in unauthorized activities, including casino/gambling operations, harmful political agendas, or toxic/aggressive...

I’m looking to engage an experienced ethical-hacking professional who can quickly assess my organisation’s overall security posture and recommend—or perform—the most appropriate next steps. Because I haven’t yet narrowed the scope to a single service, I’m open to anything from a thorough penetration test and security audit to incident-response planning and ongoing threat monitoring. You’ll begin with a discovery call to clarify the current environment, critical assets, compliance requirements, and any known pain points. From there, I expect you to outline a concise plan of action, including milestones, reporting cadence, and the specific toolsets you intend to use (e.g., Metasploit, Burp Suite, Nessus, Wireshark or equivalents). Key deliverab...

Our organisation’s digital footprint has outgrown the piecemeal protections we put in place over the past few years, so it is time for a coordinated security overhaul. I want a seasoned cyber-security professional to look holistically at our environment, uncover weak points, and help us close them before they become incidents. Scope • Full audit of the current estate—on-prem servers, cloud services, publicly facing web components, internal network segments, and any API endpoints. • Clear, prioritised report of vulnerabilities with risk ratings and practical remediation steps. • Hands-on implementation or guidance for fixes (patching, hardening, access-control tweaks, WAF rules, etc.), followed by verification testing to confirm each issue is resolved. &b...

I need an Trainer with at least five years of hands-on VMware ESXi experience to run a series of practical, online sessions for my team. The participants already work with virtualisation at an intermediate level, so I expect you to dive straight into real-world practices rather than introductory theory. The focus of the course must cover everything from a clean ESXi install and host configuration, through day-to-day virtual-machine and resource management, right up to advanced networking and security techniques. Even though the format is lecture-based, I still want each talk grounded in live demonstrations; we have a fully functional ESXi environment on-site that you can connect to remotely and showcase each step in real time. By the end of the engagement I should have: • A st...

Our internal security team needs an external, red-team style penetration test focused exclusively on the network infrastructure. I want you to simulate real-world attacks against three key components—our firewalls, routers & switches, and enterprise-grade wireless networks—to see how quickly and effectively our blue team detects, contains, and responds. Scope • Engage the perimeter and internal segments behind our firewalls. • Enumerate and exploit misconfigurations on Cisco-class routers and layer-3 switches. • Probe the corporate and guest Wi-Fi environments, including roaming vulnerabilities and weak encryption scenarios. Primary objective The engagement is not just about finding vulnerabilities; the bigger aim is to pressure-test our incident-re...

I am looking for a reliable personal assistant who can work 4–5 hours per day on my computer through secure remote-access software. No prior expertise in Claude Design is required. I will provide complete training, instructions, templates, prompts and examples. The role is primarily execution-focused and requires someone who can follow a defined process carefully and consistently. Work will involve: Accessing my computer remotely at an agreed daily time Uploading scripts, instructions and reference material into Claude Design Using prepared prompts and making follow-up corrections Checking that the generated slides follow the instructions Exporting presentations and project files Naming, organising and saving files in the correct folders Maintaining a simple tracker of completed an...

Hi I will share the details with the shortlisted candidates. Thanks

I need a complete examination system that runs entirely over our local Windows network, so students can sit an “online” test without any internet connection. The solution must let each workstation connect to a central server, pull the exam, and push results back immediately. Key capabilities • Randomized question order so no two students see the same sequence • Per-student time tracking with an automatic lock-out when the clock hits zero • Automated grading that releases scores the moment an exam is submitted Question formats to support • Multiple choice • Short answer • Essay Administrators have to be able to build question banks, schedule exams, watch real-time progress, and export detailed results. A simple, distraction-free candi...

I want a thorough, professional security check on two devices—one Android and one iPhone. I have seen unexpected apps or activities, rapid battery drain, and the occasional suspicious pop-up, so I need to confirm whether either handset has been compromised and, if so, understand exactly how to fix it. I have never sideloaded software outside the official stores, but I still want everything verified. Your task is to run a full forensic-level audit: scan for malware or spyware, inspect system logs for unauthorized access, review current privacy and security settings, and highlight every vulnerability you uncover. Please work only under my explicit authorization and within all legal boundaries. Deliverables • A clear, step-by-step report explaining findings for both devices &bu...

Necesito ayuda inmediata para asesorar y configurar una computadora portátil. Busco a alguien que hable español con fluidez y pueda: • Orientarme sobre los mejores ajustes de sistema y seguridad. • Instalar y dejar listos los programas esenciales que requiero para el trabajo diario. • Optimizar rendimiento para que el arranque y las aplicaciones funcionen de forma ágil. El objetivo es tener el equipo funcionando cuanto antes, por lo que valoro la rapidez y la claridad en cada paso. Si tienes experiencia en soporte y configuración de portátiles, podemos comenzar de inmediato.