
Qube Research & Technologies · Paris
Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a ...
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.
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.
As a Network Engineer II on the Office Technology team, you will implement and support office network solutions across Datadog’s global offices. You will own well-scoped deployment and upgrade work, troubleshoot connectivity issues across LAN, WAN, and Wi-Fi, and partner with senior engineers on larger designs and cross-office initiatives. You will collaborate closely with vendors, Facilities, AV, IT Support, Security, and Infrastructure teams to keep Datadog offices connected, reliable, and observable. This is an IC2 role with a mix of project work and day-to-day operations. You will take ownership of clearly defined areas of the office network stack, execute production changes with care, and grow your ability to design, automate, and improve office network services with support from senior engineers. You will also use AI-assisted tools responsibly to improve troubleshooting, documentation, automation, knowledge discovery, and operational follow-through. At Datadog, we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them. What You’ll Do: * Deploy and configure network solutions for new and existing offices, including switches, wireless access points, routers, and firewalls * Own scoped portions of office rollouts and upgrade projects, from planning through execution and validation * Partner with ISPs, cabling providers, hardware vendors, and internal teams to turn up new services and resolve issues * Troubleshoot LAN, WAN, and Wi-Fi issues using structured debugging methods, packet capture, logs, and performance data * Manage routing, VLAN, firewall, and wireless configurations following team standards and change-management processes * Contribute to repeatable deployment patterns through templates, documentation, scripting, or infrastructure-as-code * Monitor office network health using Datadog dashboards and other tooling, and participate in incident response and post-incident reviews * Maintain clear documentation for designs, runbooks, deployment procedures, and operational workflows * Collaborate with and provide network guidance to Office Technology Administrators, IT Support, Facilities, AV, Security, and Infrastructure partners * Help maintain office network standards, hardware lifecycle plans, and operational consistency across global sites * Apply AI-assisted tools thoughtfully to reduce operational toil, improve runbooks, summarize incidents or investigations, and make network operations more repeatable and observable. Who You Are: * Grounded in networking fundamentals, including TCP/IP, routing, switching, VLANs, DHCP/DNS, and wireless concepts * Experienced working hands-on with enterprise network equipment such as switches, access points, routers, and firewalls * Comfortable executing production changes, validating outcomes, and escalating when risk or ambiguity increases * Able to troubleshoot connectivity and performance issues using logs, packet captures, monitoring data, and clear hypotheses * Pragmatic, detail-oriented, and interested in improving runbooks, documentation, and operational processes * A clear communicator who can work effectively with technical and non-technical partners across offices and time zones * Excited to grow your depth in network engineering, observability, automation, and secure office connectivity * AI-fluent in your day-to-day work: you use AI-assisted tools to learn, troubleshoot, document, and automate, while validating outputs and protecting sensitive information. Bonus Points: * Experience with Meraki, Aruba, Cisco, Palo Alto, Fortinet, or similar enterprise networking platforms * Familiarity with Datadog or other monitoring and observability tools * Scripting or automation experience, for example Python, Ansible, Terraform, or vendor APIs * Experience supporting multiple office sites, hybrid office environments, office buildouts, or office relocations * Familiarity with secure network practices such as segmentation, VPNs, NAC, firewall policy, or zero trust networking Datadog values people from all walks of life. We understand 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 skills, we encourage you to apply. Benefits and Growth: * New hire stock equity (RSUs) and employee stock purchase plan (ESPP) * Continuous professional development, product training, and career pathing * Intradepartmental mentor and buddy program for in-house networking * An inclusive company culture, ability to join our Community Guilds (Datadog employee resource groups) * Access to Inclusion Talks, our Internal panel discussions * Free, global mental health benefits for employees and dependents age 6+ * Competitive global benefits 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.
LIVE THE MUSIC WITH US From a pioneer tech start-up created in 2007, Deezer has become one of the first French unicorns and the second largest independent music streaming platform in the world. At eighteen years old, we’re only just coming of age. Now listed on #EuroNext, Deezer is a rapidly-growing, cutting-edge player in the music streaming market. If you want an environment where you can make your voice heard and be at the forefront of music and tech, look no further! We believe music is all about embracing the things that make us different. Deezer is a vibrant community that celebrates uniqueness, diversity and individuality, and thrives on collaboration. Our international and passionate teams pride themselves on being at the forefront of the music experience, going beyond streaming and helping the world to Live the Music. We’re constantly evolving alongside our customers, partners, artists and employees — striving to make Deezer the most personal and innovative streaming service in the world. Ready for an electrifying journey? Apply now and do your part in bringing extraordinary music experiences to people’s lives! **Join Us** JOB DESCRIPTION The operation team is responsible for * Management of operational/day-to-day in relationships with Deezer’s payment Engineering team and identification of process inefficiencies * Monitor payment platform performance (authorization rates, PSP tracking), manage fraud risk operations, negotiate PSP rates, analyze transaction costs by method, and identify cost optimization opportunities. * Optimize subscription and churn data quality, implement internal control tools for payment processes and revenue reporting, and coordinate annual audits (statutory auditor deliverables, documentation, testing). * Expertise and support to Deezer teams (Customer care, Legal, Business) * Provide raw data for rights holder revenue reporting, budget tracking and accounting cut-offs; analyze monthly revenue variances * Ensure the payment system complies with local regulations (VAT, consumer protection laws, international legal developments) and maintain ongoing compliance of payment journeys and subscription management processes. * Lead subscription journey optimization, anti-churn mechanics development, conversion A/B testing, and the operational rollout of Deezer's pricing strategy. * Support commercial teams on B2B2C deals design, incorporate customer and internal stakeholder feedback to improve the user experience * Participate in QA testing phases for payment and offer-related releases. Your will : * Be the payment Operation guardian by owning daily payment operations processes, animate our continuous improvement approach, and help elaborate best practices, as we continue to launch and scale new payment products & services * Collaborate with other Payment Operations Analysts and Payment Engineering team and help foster knowledge sharing among the team * Participate in tight feedback loops with Payment product managers and other internal stakeholders to improve product & processes * Lead specific ad-hoc payment operations improvement projects QUALIFICATIONS * High knowledge of SQL and EXCEL * Strong analysis and recommendation methodology * Strong Project management skills * Previous experience in a payment processing environment * Curious and rigorous with figures * Excellent organizational and analytical abilities * Strong written and verbal communication skills in French and English * Demonstrated team player with a curious mindset * Eager and easiness to collaborate with software engineers At Deezer, diversity drives innovation. Whatever makes you uniquely you, your experiences, your way of thinking, your journey, might be exactly what we need. If this role speaks to you and aligns with your interests and capabilities, even if you don’t meet 100% of the qualifications listed, please give it a try and tell us more! #BeYou ADDITIONAL INFORMATION At Deezer, you can be your true self as we believe that #everyvoicematters. We strive to build an inclusive culture and foster a diverse environment. Because we care and want to ensure each employee feels welcome and safe at work, we continuously focus on fighting biases and helping diverse teams work well together through multiple learning opportunities, e-learnings and workshops right from the onboarding : * Regular Diversity & Inclusion internal and external talks * Dedicated employee work streams on Gender equity, Ethnicity & Culture, Disability, Parenthood (signatory of the Parental Challenge) and LGBTQIA+ * Multiple e-learnings and mandatory training sessions for all managers * English and French courses for all, so that everyone can connect and feel included Beyond benefits like transportation, we offer you extra perks like: * A Deezer premium family account for free * Access to gym classes * Join over 70 Deezer Communities to connect beyond your day-to-day work, share passions, learn from each other and #Belong * Deezer parties several times a year and drinks every thursday * Allowance for sports, travelling and culture * Meal vouchers * Mental health and well-being support from Moka.Care * Great offices always located in dynamic and attractive districts, whether in Paris, London or Sao Paulo! * Hybrid remote work policy If you want to learn more about life and culture at Deezer, please visit our Welcome to the Jungle page here!
Vestiaire Collective is the leading global platform for desirable pre-loved fashion and a pioneer in transforming how people consume fashion. Our mission is simple: make circular fashion the norm, not the exception. Through technology, expertise, and a highly engaged global community, we enable millions of people to buy and sell fashion in a more sustainable way. Founded in Paris in 2009, Vestiaire Collective is now a globally scaled marketplace with offices in Paris, London, Berlin, New York, Singapore, and Ho Chi Minh City, and logistics hubs across Europe, Asia, and the US. Today, we are a team of around 600 people from over 50 nationalities, united by a shared ambition: to drive meaningful change in the fashion industry. Our values, Activism, Transparency, Dedication, Greatness, and Collective, shape how we build, collaborate, and grow every day. Please upload your CVs in English About the role : As a Senior Security Analyst at Vestiaire Collective, you will be part of our Security team. Your objective will be to provide a safe, secure, and trustworthy experience for our users, while safeguarding their privacy and personal data, as well as protecting our company assets and internal employees. Additionally, you will ensure compliance with regulatory requirements. This role is focused on security operations, risk, and assurance: you will be the person who keeps continuous watch over our security posture — monitoring and investigating alerts, driving vulnerabilities through to remediation, supporting incident response, and producing the evidence and metrics that demonstrate our security and compliance to auditors, regulators, and leadership. Reporting to the Head of Security, you will work alongside a talented team of security engineers and collaborate closely with engineering teams and other stakeholders such as legal, finance, and corporate IT. You will work daily with our security stack: Datadog (SIEM), SentinelOne (EDR), Upwind (CSPM), Cloudflare (WAF and Cloudflare One), and Grafana/Prometheus, on top of our AWS and GCP cloud environments. What you will do : Operate and continuously improve our security monitoring: triage and investigate alerts across our detection stack (Datadog SIEM, SentinelOne EDR, Cloudflare), tune detections to reduce noise, and escalate confirmed threats. Review and prioritize cloud security posture findings (Upwind CSPM) across our AWS and GCP environments, and drive misconfigurations through to resolution with the relevant teams. Own the vulnerability management lifecycle: consolidate findings from penetration tests, application security reviews, and our bug bounty program; validate and prioritize them; and drive remediation with engineering teams against defined SLAs. Triage incoming bug bounty submissions: reproduce and assess reported issues, determine severity, and coordinate fixes with the relevant code owners. Support incident response from detection to closure: first-line investigation, coordination during incidents, documentation, and post-incident follow-up actions. Support audit and assurance activities: prepare and maintain evidence for external audits, run periodic access reviews (joiners/movers/leavers, privileged access), and keep compliance documentation up to date. Contribute to security metrics and reporting: maintain and enrich the KPIs and dashboards (Grafana) we use to report our security posture to leadership. Assess third-party vendors and tools from a security and data-protection standpoint. Handle day-to-day security requests from across the company (reported phishing, the security inbox, employee questions) and deliver security awareness initiatives to promote a security-conscious culture. Who you are : Proven experience (3+ years) in a security analyst, SOC, or security operations role, preferably in a fast-paced startup/scaleup environment. Strong analytical and problem-solving abilities, rigorous documentation habits, and the ability to communicate clearly with both technical and non-technical stakeholders. Hands-on experience with SIEM and log analysis platforms (e.g., Datadog, Splunk, Elastic) for alert triage, threat detection, and investigation; familiarity with EDR tooling (e.g., SentinelOne, CrowdStrike) is a strong plus. Working familiarity with cloud environments (AWS and/or GCP) and cloud security fundamentals - enough to understand, prioritize, and follow up on CSPM and WAF findings. Solid understanding of vulnerability management and common application threats (e.g., OWASP Top 10) - enough to validate findings, assess real-world impact, and discuss remediation credibly with engineers. Understanding of compliance frameworks and regulations (e.g., ISO 27001, PCI DSS, SOC 2, GDPR, DSA), with the ability to translate requirements into practical controls, procedures, and audit evidence. Scripting or query skills (e.g., Python, SQL), for automating routine analysis and digging into data during investigations. Ability to adapt to a rapidly changing environment and manage multiple priorities. NICE TO HAVE: Bachelor's or Master's degree in Computer Science, Information Security, or a related field. Relevant certifications (e.g., CompTIA Security+/CySA+, GIAC GCIH/GCIA, CISA, ISO 27001 Lead Auditor/Implementer) are a plus. Our Tech Stacks includes Datadog SIEM Upwind CSPM Cloudflare (WAF, One) SentinelOne AWS, GCP Grafana, Prometheus Snowflake Tableau