Vulnerability Management Engineer

Senior DevOps Engineer

Copper

Since being founded in 2018, Copper has been building the standard for institutional digital asset infrastructure with a focus on custody, collateral management, and prime services. Led by Amar Kuchinad, Copper's Global CEO, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart of Copper's offering is Multi-Party Computation (MPC) technology – the gold standard in secure custody. Copper’s multi-award winning custody system is unique in that it can be connected to centralised exchanges, DeFi applications and even staking pools without the assets leaving the custody. Built on top of this state-of-the-art custody, ClearLoop is the first solution in the market that overcomes a growing industry challenge; counterparty risk with exchanges. This solution underpins a full prime services offering, connecting global exchanges, and enabling customers to trade and settle directly from the safety of their MPC-secured wallets. By reducing settlement time for transfers to a few milliseconds (without blockchain network dependency) and offering enhanced security measures, ClearLoop is rapidly reshaping the way asset managers trade and manage capital. In addition to industry-leading security certifications, Copper has one of the strongest insurance coverages in the industry from an A+ rated insurer, positioning the firm as the partner of choice for institutions seeking to safeguard their assets. Department/Team Purpose:   The Engineering department is the backbone of Copper; entrusted with the critical responsibility of building and securing the infrastructure that safeguards billions of dollars in digital assets. We operate at the intersection of traditional institutional finance and decentralized blockchain technology.  We believe the best infrastructure comes from curious minds working openly together. Our engineering organisation brings together people with diverse backgrounds and experiences who genuinely enjoy solving hard problems. We foster a blame-free, intellectually honest environment where you're encouraged to take thoughtful risks and think big. You'll have the autonomy to own meaningful projects while gaining the support you need to grow your skills and advance your career.  Role Purpose:   We’re looking for a Senior DevOps engineer at the intersection of software development and platform engineering. In this role, your focus will be enabling fast, reliable, and secure delivery of our systems, whilst continuously improving how our infrastructure is built and operated, including our blockchain environments.  Day-to-day, you’ll tackle platform and deployment challenges through pragmatic engineering and automation. You’ll build and operate scalable, self-service infrastructure, CI/CD pipelines, and blockchain platforms, including node provisioning, network deployment, and lifecycle management. You’ll optimise build and release pipelines, improve system resilience, and ensure ‘traditional’ and blockchain infrastructure can scale with the needs of the business.  You will collaborate closely with engineering and SRE teams, focusing on infrastructure as code, developer experience, and operational scalability across the engineering organisation, with ownership of the reliability and performance of blockchain nodes and supporting systems.  Key Responsibilities:    * Building a fault-tolerant, geographically distributed infrastructure: support of multiple data centres, providing replication, sharding, auto balancing and failover.  * Participating in deployment of services with strict availability requirements on a large-scale environment and working together with other Engineers to ensure our systems meet current and future demand.  * Develop and maintain code for automated infrastructure management (DevOps, Infrastructure as Code) with the use of Ansible and Terraform.  * Working collaboratively with the Backend Engineering team to increase our resilience through insightful systems and application metrics.  * Improving our CI/CD pipeline to provide new integration vectors. Building and maintaining infrastructure for its own fleet of blockchain nodes (>25 layer 1 protocols now, and more to come)  * On-Call support to ensure 24/7 availability of all systems.   Skills and Experience:   Essential    * 5+ year's experience as a DevOps Engineer operating production-grade infrastructure.  * Hands-on experience running and maintaining blockchain infrastructure (e.g. node deployment, syncing, upgrades, monitoring, and troubleshooting).  * Strong experience with Infrastructure as Code (e.g. Terraform, CloudFormation) and automated environment provisioning.  * Strong experience with containerisation and Kubernetes, including production operations and cluster management; EKS preferred.  * Experience building and operating CI/CD pipelines using GitHub Actions and deployment tools such as ArgoCD.  * Solid understanding of networking fundamentals (VPCs, routing, load balancing, DNS, firewalls).  * Experience implementing and operating secure systems (IAM, secrets management, network security controls, vulnerability management).  * Proficiency with at least one development language (e.g., bash, Python, Go).  * Strong troubleshooting skills across distributed systems and production environments.  * Strong problem-solving and troubleshooting abilities.  * Excellent communication and collaboration abilities.  Desirable    * Experience working within crypto organisation  * Experience in Financial Services   Why Copper?    At Copper, we keep innovation, openness, and curiosity at the centre of everything we do. Here, bold ideas get the spotlight, learning is constant, and diversity shapes our team from the ground up.  Jump into a fast-moving, dynamic team that loves a challenge and knows how to have fun along the way. Collaboration is just as important as results—you’ll be surrounded by smart, driven colleagues in London and across our APAC, Switzerland, UAE, and US offices.  Hybrid working model – we believe in the value of bringing people together and at the same time we embrace the adaptability of flexibly working.  Diversity and inclusion matter to us – they’re woven into Copper life. From employee-led groups like Women at Copper to a committee focused on community and wellbeing, you’ll have a network that supports you from day one. Everyone voice matters.   If you’re looking to ramp up your career, or keen to do something new in your field, with us, you’ll keep moving forward.  Ready to make your mark, keep growing, and join a supportive, dynamic team? Copper’s the place.  The interview process at Copper    Our interview process is designed to be thoughtful, efficient, and engaging. While specific steps may vary slightly depending on the role, the typical journey includes:  1. Initial Screening A brief conversation with our Talent Acquisition team to explore your background, motivations, and alignment with the role.  1. Technical Interview A virtual session conducted via Microsoft Teams, where you'll engage with team members to discuss relevant skills, problem-solving approaches, and technical experience.  1. In-Person Interview A conversation focused on team dynamics, collaboration style, and any final technical questions. This may be with cross-functional peers or leadership.  Additional steps may be added based on the role's complexity or seniority. We aim to keep the process transparent and respectful of your time.  Benefits   In return for everything you can bring to Copper, we can offer you an exciting, challenging role in a fast-growing and dynamic business, with career opportunities and welcoming working environment. Some of our key UK benefits are highlighted below:   * Paid Time Off - A minimum of 35 days of paid time off per year, inclusive of annual leave and public holidays. Employees also receive one additional day of annual leave for each year of service.  * Comprehensive Medical Insurance - Inclusive of dental, optical, audiology, and mental health coverage, with medical history disregarded  * Life Insurance  * Enhanced Pension Contributions - Includes an enhanced employer matching contribution  * 24/7 Employee Assistance Programme (EAP)  If you think you have everything we're looking for and more, then we'd love you to apply for the opportunity.   Copper is an equal opportunity employer. We embrace diversity and equal opportunities in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be. So, bring us your experience, perspectives, and skills. It is in our differences that we will continue to grow and ensure Copper is transforming how institutional investors engage with digital assets. Copper is a Disability Confident Employer, please let us know if you have a disability. If you require us to provide any assistance during the recruitment process, then we would ask you to highlight this to us and we will be happy to accommodate.

Product 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 our 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. You will join the Security team, working closely with Software Engineers and Infrastructure teams to embed security into the design, development, and operation of systems across cloud services, business applications, and core infrastructure. Your Future Role within QRT You will: * Support the implementation and operation of product security controls across cloud services, core infrastructure, and business applications on Windows and Linux platforms * Work with engineering teams to integrate security into system design and development, applying practical approaches suitable for fast-moving environments * Contribute to secure software development practices, including supporting security reviews across languages such as Python, C++, Rust, Go, and Kotlin/Java * Perform threat modelling, vulnerability assessments, and security code reviews with guidance from senior team members * Assist with integrating and operating security tooling (e.g., SAST, DAST, dependency scanning) within CI/CD pipelines and runtime environments * Identify security risks and contribute to remediation and mitigation plans with engineering teams * Perform vendor security reviews to assess third-party security practices against internal standards * Build your product security knowledge and share learnings with peers across engineering teams Your Present Skillset * 3–5 years of experience in product security, application security, software engineering, or a related role * Hands-on experience with secure coding practices and at least one of: Python, C++, Rust, Go, Kotlin/Java * Solid technical foundation in software development, system architecture, or infrastructure, with a strong interest in security * Working knowledge of security principles and common vulnerabilities affecting software, cloud platforms, and business applications * Experience securing Windows and/or Linux-based systems * Practical experience with at least one cloud platform (AWS or Microsoft Azure), ideally in hybrid environments * Familiarity with threat modelling, vulnerability management, and risk assessment concepts * Experience using or integrating security scanning tools into development workflows and/or CI/CD pipelines * Strong problem-solving skills, clear communication, and willingness to learn in a fast-paced environment * Exposure to low-latency or performance-sensitive systems * Experience in financial services and/or regulated environments * Interest in automation and security tooling development 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.

Senior Software Security Developer – Core Platform Services

PhysicsX

ABOUT US PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of possibility. Our customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive. The Role We are recruiting for a Senior Software Security Developer within our Core Platform Services Team. You will be responsible primarily for writing secure code components that many teams will use across the business. There is a strong emphasis on authentication for this role. What you will do * Design and implement platform security features and guardrails. * Act as an SME for security for the Core Services development team. This includes mentoring, performing threat modeling, sand ecurity code reviews. * Help shape incident response procedures and vulnerability management workflows * Support the response team by validating and remediating product security vulnerabilities. * Contribute to secure coding standards and provide training/mentorship to developers What you bring to the table * 8+ years in a developer role focused with strong focus on designing and building security features * Extensive RBAC/ABAC knowledge and implementation experience * Experience with user, agent, and machine authentication workflows. * Hands-on experience with secure coding, OWASP Top 10, and threat modeling * Strong developer skills and extensive experience shipping code to production. * Experienced in CI/CD, IaC, Python and Go. * Track record of balancing pragmatism and security rigor in a fast-paced team * Thorough knowledge of authentication and authorization protocols (e.g., OAuth, OpenID Connect, SAML, LDAP, etc.). * Strong communication skills, comfortable working across development teams and managing multiple initiatives. Nice to Have Skills * Strong understanding of AI security fundamentals * Participation in bug bounty programs * Familiarity with the BSIMM framework * Experience in cloud security including identity and access management and cloud-native services. What we offer Build what actually matters Help shape an AI-native engineering company at a formative stage, tackling problems that genuinely matter for industry and society. This is work with real-world impact - and something you can be proud to stand behind. Learn alongside exceptional people Work with a high-caliber, collaborative team of engineers, scientists, and operators who care deeply about doing great work, and about helping each other get better. We come from diverse backgrounds, but we share a commitment to operating at the highest level and addressing some of the most complex challenges out there. If you’re ambitious, thoughtful, and driven by impact, you’ll feel at home. Influence over hierarchy We operate with a flat structure: good ideas win - wherever they come from. Questioning assumptions and challenging the status quo isn’t just welcomed, it’s expected. Sustainable pace, long-term ambition Building meaningful technology is a marathon, not a sprint. We believe in balancing focused, ambitious work with a life beyond it. Our hybrid model blends time together in our Shoreditch office with work-from-home days, giving you the flexibility to work sustainably while staying connected in person. And it doesn’t stop there … 🚀 Equity options - share meaningfully in the company you’re helping to build. 🏦 10% employer pension contribution - because investing in future matters. 🍽️ Free office lunches - to keep you energised and focused. 👶 Enhanced parental leave - 3 months full pay paternity and 6 months full pay maternity leave, to provide extra flexibility during the moments that matter most. 🍼 YellowNest nursery scheme - to help working parents manage childcare costs. ☀️ 25 days of Annual Leave (+ Public Holidays) - because taking time to rest matters. 🏥 Private medical insurance - 100% employee cover, giving you complete peace of mind. 💪 Wellhub Subscription - gain access to thousands of gyms, classes and wellness apps, supporting both physical and mental wellbeing. 👀 Eye tests - because good work depends on good health. 📈 Personal development - dedicated support for learning, development, and leveling up over time. 💛 Employee Assistance Programme (EAP) - confidential wellbeing support, available whenever you need it. 🚲 Bike2Work scheme and 🚆 Season ticket loan - to make getting to work easier and greener. 🚗 Octopus EV salary sacrifice - for a simpler, more sustainable way to drive electric. 🔎 Watch this space, we’re continuing to build this as we grow…   We value diversity and are committed to equal employment opportunity regardless of sex, race, religion, ethnicity, nationality, disability, age, sexual orientation or gender identity. We strongly encourage individuals from groups traditionally underrepresented in tech to apply. To help make a change, we sponsor bright women from disadvantaged backgrounds through their university degrees in science and mathematics.    We collect diversity and inclusion data solely for the purpose of monitoring the effectiveness of our equal opportunities policies and ensuring compliance with UK employment and equality legislation. This information is confidential, used only in aggregate form, and will not influence the outcome of your application.