IT/Security Engineer - Alternance Septembre 2026

Senior Security Engineer

Qube Research & Technologies

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology and trading expertise has shaped QRT’s collaborative mindset which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors.  As a Senior Security Engineer, you will help define and raise the security bar for applications and services across QRT. Working closely with engineering teams, you will conduct security assessments, review system designs, identify vulnerabilities, and drive security best practices across the software development lifecycle. You will propose pragmatic mitigations and help ensure services are secure and resilient before launch. This role offers exposure to the full breadth of QRT's technology landscape, from cloud platforms to low-latency trading infrastructure. Your future role within QRT: * Conduct security design reviews for new and existing product, evaluating architecture documents, threat models, and system designs for potential security risks.  * Conduct threat modelling to identify attack vectors, security risks, and areas of concern in product design, so that security is built in at every stage of the development lifecycle.  * Partner with engineering and product teams to embed security into product design and development, drawing on your experience securing large‑scale software systems.  * Document, track, and communicate security findings to engineering teams with clear remediation guidance, verify fixes, and advise development teams on secure coding practices.  * Implement security controls and processes for product security, including core trading infrastructure, cloud services, and business applications across both Windows and Linux environments.  * Build and maintain a secure software development lifecycle (SDLC) with a focus on secure coding practices in languages like Python, C++, Rust, Go and Kotlin/Java.  * Mentor, guide, and train on security best practices and secure development processes to engineering teams working in mixed cloud services and operating systems environments.  * Integrate security scanning tools (SAST, DAST, etc.) into CI/CD pipelines and runtime delivering continuous monitoring and threat detection across cloud services and on-prem systems.  * Identify security risks and shape strategies for risk mitigation in a fast-paced high-stakes environment.  Your present skillset: * 5+ years hands-on in product or application security, securing software development across large engineering organisations.  * Deep knowledge of the security principles, attack surface, and remediation patterns for cloud platforms, SaaS tooling, and internal applications. Reasons about threats and risks in terms of real impact, not abstract severity scores.  * Finds vulnerabilities in infrastructure and application code, then produces proofs of concept that demonstrate risk, not just severity.  * Extensive hands-on experience with AWS and a clear grasp of the security boundaries of a hybrid environment with on-premises infrastructure.  * Read code fluently. Python, C++, Rust, Go, or Kotlin/Java: the language matters less than the ability to spot what is unsafe and suggest a safer pattern.  * Leads threat modelling sessions and turns the output into actionable mitigations for large-scale, complex systems in a trading environment.  * Communicate clearly, solve problems rigorously, and adapt under pressure.  * Familiarity with trading financial systems is a plus.  QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.

Director, Product Management - Cloud Security and Shared Capabilities

Datadog

About Datadog: We're on a mission to build the best platform in the world to defend the enterprise from code-to-cloud-to-runtime. Used by thousands of companies globally, Datadog security products uniquely leverage Datadog's unified security and observability platform so Security, DevOps and SRE can collaborate rapidly and seamlessly to deliver better detection, prioritization and remediation. Our product and engineering culture values pragmatism, honesty, and simplicity to solve hard problems the right way. The Opportunity: In this competitive market, the Director of Product Management for Cloud Security and Platform will play a mission-critical role in providing product and strategy leadership to grow Datadog's market share through differentiation, innovation and compelling customer value. This leader will work with a talented and growing team of product managers and engineers to build and grow multiple product lines that play an essential role for our customers' cloud security programs and the shared platform capabilities supporting all Datadog security products, to establish Datadog as a security industry leader. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them.   What You'll Do: * Run and grow multiple product lines to meet revenue and business targets with the goal of building a multi-hundred million dollar annual business. * Lead and own product strategy and roadmap for accountable security product lines, fully aligned to revenue and business goals and with compelling differentiation and customer value. * Ensure predictable roadmap execution across direct and partner teams to achieve product and business outcomes required to meet the revenue and business goals. * Analyze and develop pricing and packaging strategies to maximize revenue through attaching deep understanding of market dynamics and other strategic leverage points. * Drive GTM strategy with GTM partner teams to achieve revenue and business goals. * Fulfill the role as the product-leader representative across accountable product lines with analyst, press and customer communities. * Manage and grow both manager and individual contributor (IC) Product Managers, ensuring they are motivated, delivering high quality work and finding high fulfillment. * Model and contribute to a culture of learning and collaboration across product management and the broader organization. * Raise the bar of PM leadership through leadership in strategy development, roadmap planning and execution, GTM and overall product-leader responsibilities.   Who You Are: * An experienced leader in Product Management with demonstrated business growth and customer adoption success in the CNAPP market, as well as demonstrated experience driving shared platform capabilities in service of multiple products. * A seasoned team leader with experience directly managing product management teams and mentoring talent into sustained high performers. * Passionate about GTM and have demonstrated success in developing GTM programs and achieving GTM targets with counterparts in sales, sales engineering, channels, marketing and customer success. * Excellent at cross-functional alignment and ensuring all partner organizations are fully aligned and committed to delivering what is needed to achieve roadmap and business goals. * Highly skilled in pricing and packaging strategies to maximize revenue potential and strategic advantage. * Highly customer-centric and a convincing champion of the needs of the customer to deliver a compelling, high value and high quality customer experience across all phases of the customer lifecycle. * Previously a software engineer, security engineer or have demonstrated technical knowledge to be able to discuss technical concepts with customers and engineering counterparts. * A compelling presenter with excellent verbal and written communication skills with a proven track record of presenting and defending your ideas to executive, technical and non-technical audiences, as well as external audiences including industry analysts. * Highly data-driven with an advanced analytical aptitude that can draw critical insights through synthesizing market, competitive, usage, pipeline and other data sources. Datadog values people from all walks of life. We know not everyone will meet all the above qualifications on day one. That's okay. If you're passionate about technology and want to grow your experience, we encourage you to apply.   Benefits and Growth: * Work on industry-leading cloud security products that protect organizations at global scale. * Lead highly talented product management teams solving complex technical challenges. * Partner with world-class engineering and go-to-market organizations. * Influence company strategy and the future direction of Datadog's security platform. * Grow your leadership through meaningful ownership, mentorship, and cross-functional collaboration. * Contribute to an inclusive culture focused on learning, innovation, and customer impact. * Benefits and Growth listed above may vary based on the country of your employment and the nature of your employment with Datadog.   ---------------------------------------------------------------------------------------------------------------------------------- About Datadog:  Datadog is the leading observability and security platform for the AI era, providing businesses with unified visibility across the technology stack to manage complexity at scale. It brings applications, infrastructure, data, models, and security into one place, using AI to detect and resolve issues before they impact customers. Trusted globally by Fortune 500 companies and high-growth AI leaders, Datadog enables businesses to move faster with clarity and confidence. Learn more about #DatadogLife on Instagram, LinkedIn, and Datadog Learning Center. ---------------------------------------------------------------------------------------------------------------------------------- Equal Opportunity at Datadog: Datadog is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and other characteristics protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. Here are our Candidate Legal Notices for your reference.  Datadog endeavors to make our Careers Page accessible to all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please complete this form. This form is for accommodation requests only and cannot be used to inquire about the status of applications.  Privacy and AI Guidelines: Any information you submit to Datadog as part of your application will be processed in accordance with Datadog’s Applicant and Candidate Privacy Notice. For information on our AI policy, please visit Interviewing at Datadog AI Guidelines.

Senior DevOps Engineer

Alma

🧡 ABOUT ALMA At Alma, we believe sustainable commerce depends on fair, well‑balanced trade. Because finance plays a pivotal role in business, our mission is to put it back in its rightful place - serving merchants and consumers. Our installment and deferred payment solutions help merchants boost sales by 20% or more, increase customer loyalty, and deliver a seamless shopping experience - without encouraging bad debt. As the buy now pay later leader in France and active in 10 European countries, we've empowered over +25,000 merchants and 10 million consumers. With 380+ Almakers and €100M+ ARR, Alma is scaling rapidly across Europe as a member of the Next40, and we're just getting started!   👐 ABOUT THE TEAM  The Developer Experience (DevX) squad is part or the Engineering’s Platform Tribe. The Platform Tribe groups the DevX squad and the Site Reliability Engineering quad. The members of the tribe are responsible for building the foundational infrastructure, security layers, and core systems that empower Alma's entire product and engineering organization to scale reliably.  You will join a dedicated squad focused entirely on the daily lives of our engineers: Our mission is to eliminate friction from a developer's machine all the way to production. We build, optimize, and maintain the delivery systems, local development environments, and CI/CD automation that allow our product teams to ship high-quality code safely, frequently, and with absolute confidence. We operate in a highly dynamic, polyglot environment. We are looking for an engineer driven by technical curiosity, who loves exploring new tools and technologies to continuously elevate our engineering standards. This is a full-time position, based in Paris or fully remote in France.   💼 ABOUT THE JOB * Own and continuously optimize our CI/CD pipelines and delivery workflows, ensuring fast feedback loops and secure deployments. * Build and evolve the local developer experience, making it seamless for engineers to spin up, test, and debug services locally across a variety of languages and frameworks. * Own and maintain part of our cloud infrastructure and container orchestration platforms using Terraform and Kubernetes. This will also require participating in identifying and solving infrastructure-related production issues and performance troubleshooting, upgrading our platforms for long-term resilience. * Be a technical referent and drive engineering standards forward by acting as a trusted partner for product engineering squads on delivery and infrastructure best practices, sharing expertise and providing guidance. * Encourage a culture of technical curiosity by frequently evaluating, benchmarking, and prototyping emerging technologies to bring the best tool sets to the team and promoting a culture of continuous learning across the org.   🧰 YOU WILL WORK WITH Python, TypeScript, PHP, Docker, Kubernetes, Terraform, GitHub Actions, GCP, Postgres and Datadog.   🧩 ABOUT YOU To succeed in this job * You've built at least 5 years of experience in a relevant role, ideally in DevOps or Platform Engineering. * You take ownership of cross-functional infrastructure initiatives, driving complex projects from design to delivery alongside multiple teams. * You have hands-on experience designing, building, and optimizing CI/CD pipelines end to end (GitHub Actions or equivalent). * You're comfortable building robust automation pipelines and modernizing local development environments. * You are fluent in french (primary working language) with a good level of English, for documentation, cross-team exchanges, and technical reading, writing as well as presenting. And it will be nice if you also * Have production-grade proficiency with Infrastructure as Code (not necessarily Terraform) and container orchestration (not necessarily Kubernetes). * Are familiar with an observability and monitoring stack (Datadog, Prometheus, or equivalent). * Have worked with local development environment tooling (Nix, mise, asdf, devenv, devcontainers, etc.). * Working knowledge of at least one language from Alma's stack (Python, TypeScript, or PHP), enough to read, debug, and contribute when needed. Don't meet every single requirement? At Alma, we believe great hires come from diverse paths. If this role excites you, we encourage you to apply. We value potential, curiosity and the ability to grow as much as experience.   🧘 WHAT’S IN IT FOR YOU If you join, you will be able to grow and impact on: * The infrastructure and tooling that directly shapes the productivity and confidence of every engineer at Alma. You'll have real ownership over your scope, the space to explore and prototype freely, and the support to take initiative. * The DevX squad, a dynamic, polyglot team where learning together is a core habit, not an afterthought. * Alma's growth across Europe, as the infrastructure you build directly enables us to scale reliably across 10 markets and more in the future, your work has a clear and measurable line to the business.   🤑 COMPENSATION & BENEFITS * Competitive salary based on 12 months * Profit-sharing and employee savings plan * Health insurance: 100% covered by Alma including family package * Disability insurance: 100% covered by Alma * Sport: partnerships with Gymlib and Classpass, or €30/month reimbursement for your sports activities * Maternity/paternity leave: salary maintained at 100% during leave with no seniority requirement. Return to work at 4/5 schedule paid at 100% for 8 weeks. * Sustainable Mobility Package (FMD): €544.80/year (excluding full-remote contracts) * Meal vouchers: €10/day, 50% covered by Alma * Mental health: free access to MindDay platform * Paid time off: 25 days/year ****(+ additional paid leave granted for employees on executive contracts) * Access to our Learning & Development Platform * 2 weeks of full remote possible per year in summer for people working in hybrid remote   🎯 INTERVIEW PROCESS * Video call with a Talent Acquisition team member to understand your path, motivation & present you the role. * Video call with your future manager to deep dive the role, the team, your profile and answer all your questions. * Case study presentation with 2 - 3 team members (ideally in house) to assess your practical knowledge**.** * Take-home coding test, followed by a remote feedback session. * Live system design interview to assess your practical and architectural knowledge. * A coffee chat with the squad you’ll join to further assess your skills and team fit.   🌍 DIVERSITY & INCLUSION At Alma, we believe that diversity fuels innovation and makes our community stronger. We are committed to building a workplace where every person feels seen, respected, and empowered to do their best work whatever their gender, background, ethnicity, age, sexual orientation, religion, disability or lived experience. As an equal opportunity employer, we welcome applicants from all walks of life, and all employment decisions are made based on qualifications, merit, and business needs.