Systems Engineer at Virtu | Dublin, London

Virtu Financial, Inc. is a prestigious financial technology firm that utilizes state-of-the-art technology to provide liquidity to global markets while delivering innovative and transparent trading solutions for our clients. As a prominent market maker, Virtu ensures deep liquidity that contributes to more efficient markets worldwide. Our expertise in market…

Join Virtu Financial, a premier financial services firm that utilizes state-of-the-art technology to provide liquidity and innovative trading solutions globally. As a market maker, we excel in delivering deep liquidity, which fosters more efficient markets. Our expertise in market structure, coupled with extensive diversification and top-tier execution technology, empowers us to offer competitive bids and offers across more than 19,000 securities, at over 235 venues in 36 countries worldwide.Our core services—market making, client execution, and trading venues—position Virtu at the forefront of developing and implementing innovative tools that enhance efficiency and performance throughout the organization.THE ROLEAs a Quantitative Strategist at Virtu, you will collaborate with a diverse team of traders, quantitative analysts, and experienced software engineers. Our work environment is supportive and collegial, providing opportunities to engage with multiple teams across the globe.Utilize your analytical skills and advanced statistical methods to construct and refine predictive models.Research and develop new trading strategies to enhance performance.Evaluate existing strategies to identify areas for enhancement.Create risk models and frameworks to effectively manage portfolio risks.Design tools to automate research tasks and visualize complex datasets.THE CANDIDATEPhD in a quantitative field such as Science, Mathematics, or Engineering.A strong academic record with challenging coursework and high grades.Outstanding quantitative, mathematical, and analytical problem-solving abilities.Excellent communication skills and a collaborative spirit.Ability to solve technical and quantitative challenges under pressure.Competence in expressing ideas mathematically and algorithmically.Proficient programming skills, particularly in Python and/or C/C++.Intellectually curious, self-driven, and capable of learning from peers.Exceptional mental agility and comfort with ambiguity.A strong desire for success within a team-oriented environment.THE PROCESSFollowing initial application screening, candidates will receive an online programming assessment via HackerRank as the first stage of the hiring process.

Virtu Financial is a global firm specializing in financial services and technology-driven trading solutions. The company acts as a market maker, providing liquidity and supporting efficient trading across more than 19,000 securities on over 235 venues in 36 countries. Role overview The Full Stack Developer will join Virtu's Dublin-based development team. This group creates web-based trading tools and collaborates with colleagues throughout the company, including traders and operations staff. Developers in this team are involved from gathering requirements to delivering real-time trading tools, visualization dashboards, analytics, and reporting solutions. What you will do Design and implement user-friendly interfaces for trading applications Build and maintain reliable back-end services to support trading workflows Work closely with cross-functional teams to understand requirements and deliver solutions Contribute to the development of real-time tools, dashboards, and analytics What we look for Interest in designing intuitive user interfaces Experience building dependable back-end systems Clear communication skills and a collaborative approach Comfort working hands-on to solve technical challenges in a trading context

Virtu Financial is a premier financial services firm that harnesses advanced technology to provide liquidity in global markets and deliver innovative, transparent trading solutions to our clientele. As a market maker, Virtu enhances market efficiency by offering deep liquidity across a vast array of over 19,000 securities, spanning 235 venues in 36 countries worldwide. THE ROLE As part of Virtu's dynamic global team, our Site Reliability/Core Operations Engineers are crucial in managing the deployment, maintenance, and continuous improvement of a complex electronic trading system operating across numerous venues globally. This role places you at the forefront of our technology's interaction with financial markets, requiring quick decision-making and composure in high-pressure situations. As the first point of contact for all external trading connections, you will engage in a variety of functions, including counterparty support, risk management, and system optimization. Our engineers thrive in a Linux environment, tackling intricate technical challenges while collaborating with traders and exchanges to grasp the intricacies of micro-market structures. A fervent interest in both markets and technology is essential for success in this unique opportunity within a fast-paced electronic trading landscape.

Virtu Financial is a premier financial services firm that utilizes innovative technology to provide liquidity across global markets and deliver unparalleled, transparent trading solutions to our clientele. As a market maker, we offer substantial liquidity that contributes to the enhancement of market efficiency worldwide. Our expertise in market structure, diverse portfolio, and advanced execution technology empower us to present competitive bids and offers across over 19,000 securities at more than 235 venues in 36 countries globally.THE ROLEWe are seeking a motivated and detail-oriented individual to join our Fixed Income Trading desk as a Trader. This role entails responsibilities in risk management, strategy formulation and execution, as well as primary market trading. Traders collaborate closely with operations, compliance, brokers, and custodians to minimize risks and drive revenue. Our traders design, implement, and refine high-performance algorithmic trading strategies deployed on electronic trading venues and RFQ platforms worldwide. Additionally, our ETF traders develop and maintain relationships with issuers and trading partners. This team has the unique opportunity to partner with software engineers to enhance and develop the firm’s trading strategies further. Virtu Financial is a well-established market maker in the ETF sector in Europe, and we are poised to significantly broaden our product offerings to include all underlying asset classes.

Join our dynamic team at Arista Networks as a Senior Systems Engineer, where you will play a pivotal role in designing, developing, and maintaining our advanced networking solutions. You will collaborate with cross-functional teams to innovate and enhance our systems, ensuring optimal performance and reliability.

Join Our Team as a Team Leader!Location: Arnotts, DublinAre you prepared to transform your everyday routine? Trinny London is thrilled to offer a dynamic opportunity for a Team Leader to join our vibrant Counter at Arnotts! Reporting directly to the Business Manager, you will play a pivotal role in counter management. As a Trinny London Artist, you will be at the forefront of creating exceptional experiences for our customers. Your mission is to empower individuals to feel their best every day with our innovative, stackable, and portable makeup range alongside our award-winning skincare products. You will utilize your artistry skills, deep product knowledge, and a passion for fostering emotional connections to ensure a memorable experience for every customer.About Trinny LondonFounded in 2017 by Trinny Woodall, Trinny London is revolutionizing the beauty industry by demystifying makeup and skincare, and we are just getting started! With rapid growth since our inception, we are proud to be one of Europe’s fastest-growing beauty brands, achieving remarkable sales and building a dedicated community of supporters across the globe. Our talented team is the backbone of our success, and we thrive on collaboration and innovation.We abide by three core values: embrace fearless passion, act with smart intent, and unite in wearing yellow together. We go above and beyond, breaking boundaries while celebrating our achievements and learning experiences as a cohesive team. Every idea is valued, and we collectively strive to reach our goals.Your Responsibilities:Provide a range of services, including pre-booked appointments and walk-ins, ensuring a memorable Trinny London Match2Me experience for all clients.Deliver outstanding customer service while sharing your expertise with each customer.Represent Trinny London’s brand and ethos, ensuring customers return for your exceptional service.Thrive in a fast-paced environment, achieving and surpassing KPIs while enjoying the energy of success.Collaborate with our education and training team to provide top-tier makeup advice and services.Stay current with the latest skincare and makeup trends to enhance your product knowledge and artistry.Drive sales to meet daily and monthly targets.Assist your Business Manager in planning events to boost sales and foot traffic.Help manage staff schedules through our HR and rota systems.Motivate and support your team to foster a collaborative environment.

airapps is looking for a skilled System Administrator to help maintain and support the company’s IT infrastructure in Dublin. This position focuses on keeping systems secure and performing at their best. What you will do Monitor system performance and address any issues that arise Troubleshoot technical problems to minimize downtime Implement upgrades and updates to software and hardware as needed Collaborate with other IT team members to maintain network stability Ensure all systems operate smoothly and securely Who we’re looking for Experience managing IT infrastructure Strong troubleshooting skills Ability to work well with other IT professionals Commitment to maintaining system security and performance This role is based in Dublin and involves hands-on work with the company’s core technology systems.

Mason Hayes & Curran is a full-service law firm located in Dublin Docklands. The firm works with multinational corporations, institutional clients, and government bodies on a broad range of legal matters. Role overview The IT Systems Administrator will join a team of 11 IT professionals who support more than 650 staff members. This group is responsible for maintaining and improving the firm’s technology infrastructure, ensuring daily operations run smoothly. The position offers opportunities to expand technical skills and develop professionally within a collaborative environment. What we look for Ability to work independently and contribute as part of a team Motivation to address challenges and resolve technical issues Interest in supporting technology for a large professional services firm This role is based in Dublin.

Trinny London, founded in 2017 by Trinny Woodall, aims to make makeup and skincare simple and approachable. The company has expanded rapidly across Europe, introducing new products and building a team that values growth and collaboration. The team at Trinny London encourages fearless passion, thoughtful action, and strong teamwork. Colleagues support one another, push boundaries, and celebrate achievements together. Role overview This Assistant Counter Manager role is based at the Arnotts concession in Dublin. The position works alongside the Business Manager, helping with daily operations and ensuring the counter runs efficiently. Trinny London Artists play a key role at the counter, using their expertise to help customers feel confident and informed about the curated makeup and skincare collection. Main responsibilities Assist the Business Manager in meeting all counter business objectives and targets. Lead monthly reviews to communicate goals and monitor progress, offering daily feedback and updates during team meetings. Motivate and inspire the team to achieve performance targets. Address performance concerns promptly, following Trinny London’s procedures and using available support. Collaboration and training Work closely with the Counter Manager and Training Team to ensure team members receive effective training and process sales accurately while following company policies. Stay up to date with product knowledge and share updates with the team to support a strong customer experience.

At Manna, we’re revolutionizing the way the world receives deliveries by taking them to the skies.Our mission is straightforward yet ambitious: to make high-speed suburban delivery affordable, environmentally friendly, and safe. We design and manufacture our own aviation-grade drones that deliver food, beverages, groceries, and more directly from local businesses to customers’ homes in mere minutes.Our team is driven by impact, places a premium on safety, and believes the best innovations arise from collaborative teamwork while being their authentic selves. We prioritize rapid progress, possess a passion for our work, and embrace a growth mindset to continuously improve in all our endeavors.If you’re eager to create world-changing technology with tangible impact (and enjoy a bit of fun along the way), you’ll feel right at home here.Welcome to Manna — where we deliver the future.Role OverviewWe are seeking a Systems Integration Engineer to operate at the intersection of software, hardware, and flight systems.This role is crucial for integrating and launching the drone system from start to finish — adopting a comprehensive perspective across software, hardware, and flight systems, employing practical testing and experimentation to troubleshoot issues, comprehend system behavior, and enhance performance in real-world scenarios.Key Responsibilities:Integrate software, hardware, and flight subsystems within the drone platformConduct system bring-up, testing, and validation in both lab and field environmentsTroubleshoot system-level issues across software, firmware, and hardwareAnalyze logs, telemetry, and test data to pinpoint the root causes of failuresDesign and execute experiments to gain insights into system behavior and enhance performanceValidate system performance under both normal and degraded conditionsAssist in flight testing and the examination of real-world performance issuesCollaborate closely with software, hardware, and flight science teams to boost system performanceDocument system behavior, test outcomes, and insights to aid in repeatability and comprehensionContribute to safety validation by identifying risks and supplying test evidence to certification teams

Join Virtu Financial, a Leader in Financial TechnologyAt Virtu, we are at the forefront of financial technology, utilizing state-of-the-art tools to provide liquidity to global markets. Our innovative trading solutions and industry-standard analytics tools empower our clients to navigate complex financial landscapes. As a prominent market maker, we deliver deep liquidity that fosters efficient markets across the globe. With expertise in market structure, diverse offerings, and advanced execution technology, we present competitive bids and offers in over 19,000 securities at more than 235 venues across 36 countries.We cultivate a dynamic, meritocratic workplace characterized by a flat hierarchy. A background in finance is not a prerequisite, making this an ideal opportunity for individuals eager to embark on a career in the financial technology sector.About the RoleAs part of our Core Development team, you will engineer robust trading tools that support our high-performance trading system utilized in financial markets worldwide. Your focus will be on designing and enhancing our low latency trading platform, internal messaging infrastructure, and connectivity to various external trading venues.

Veeva Systems is a purpose-driven leader in cloud solutions for the life sciences industry, dedicated to accelerating the delivery of therapies to patients. As one of the fastest-growing SaaS companies globally, we achieved over $2 billion in revenue last year and are poised for continued growth.Our core values—Do the Right Thing, Customer Success, Employee Success, and Speed—guide our operations. We made history in 2021 by becoming a public benefit corporation (PBC), committed to balancing the interests of our customers, employees, society, and investors.At Veeva, we embrace flexibility through our Work Anywhere philosophy, enabling you to thrive in your preferred work environment—whether from home or in the office.Be a part of our mission to transform the life sciences sector, making a meaningful impact on our customers, employees, and communities.The Role We are looking for a Senior Site Reliability Engineer to join our Vault Platform team. In this role, you will be responsible for maintaining the scalability and reliability of our enterprise applications, addressing complex challenges on a global scale. Your expertise in Java and modern open-source technologies will be critical in enhancing our production systems.The ideal candidate will possess a wealth of experience with Java applications and the latest open-source technologies, ideally gained from enterprise software development or a rapidly growing tech environment. As a Senior SRE, you should be innately curious and proficient in problem-solving. You will also offer a unique engineering perspective, understanding how systems integrate to function effectively for hundreds of customers across North America, Europe, and Asia.

About KotaKota is revolutionizing the accessibility of insurance and retirement benefits, akin to the convenience of modern software. Our innovative offerings include the Kota Platform, the world’s first fully integrated benefits platform, and Kota Embed, which provides embedded insurance and retirement solutions for various platforms. Our mission is to make benefits and insurance more accessible and enjoyable for today’s workforce.Founded in 2022, Kota has successfully raised over €20 million from leading European tech investors such as Eurazeo, EQT Ventures, Northzone, Frontline, and notable angel investors like Romain Huet (formerly of Stripe, now OpenAI) and David Clarke (formerly of Workday). Our investors have previously supported illustrious companies including Spotify, Airbnb, Klarna, Truelayer, Snapchat, Workday, Personio, Workvivo, Pointy, Workable, and Wayflyer.About the TeamAs a member of Kota’s Forward Deployed Engineering team, you will collaborate directly with our customers, such as global payroll providers and HR platforms, to facilitate the integration of our APIs and SDKs through personalized support and insightful guidance. Our aim is to simplify complexities, enabling platforms to focus on delivering attractive benefits without the burden of outdated systems.The RoleIn the position of Forward Deployed Engineer (FDE) at Kota, you will be at the crossroads of engineering, product development, and customer success. You will engage with clients to design and implement solutions that maximize the value derived from Kota’s developer offerings. Unlike conventional engineering roles, this position emphasizes customer interaction and hands-on involvement. You will produce production-quality code, counsel partners on best practices, and influence our product roadmap through real-world integration feedback. This role is ideal for those looking to apply their technical expertise in a high-impact, customer-centric setting while transforming global benefits delivery.What You’ll DoCollaborate with customer engineering teams to integrate Kota’s SDKs and APIs into their platforms.Convert customer requirements into scalable, production-ready solutions.Enhance Kota’s product offerings by developing internal tools, writing reusable code, and identifying areas for API and SDK improvements.Work alongside Product, Engineering, and Customer Success teams to ensure successful deployments.Serve as the technical advocate for customers, shaping feedback into actionable insights for our product development.

Join Arista Networks, a leading provider of cloud networking solutions, as a Kubernetes Systems Engineer in our Engineering Production team. In this role, you will be pivotal in designing and managing large-scale Kubernetes environments, ensuring high availability and performance across our platforms.

Join MongoDB as a Senior Staff Engineer, where you will be pivotal in designing, developing, and managing our comprehensive Observability stack that serves both internal and external users. Our Observability stack is critical for monitoring database clusters, providing actionable alerts to protect vital workloads relied upon by tens of thousands of customers. You will contribute to a team responsible for the metrics, visualization, logging, tracing, and alerting systems that enhance the MongoDB platform's reliability and performance.As the demand for high-cardinality observability data grows alongside MongoDB Atlas, you will innovate and scale our systems to handle immense data volumes, processing billions of metrics time series and petabytes of logs and events. Our technology stack features tools and languages such as VictoriaMetrics, Splunk, Flink, WarpStream/Kafka, Java, and Golang. You'll collaborate closely with Software Engineers, Product Managers, and Site Reliability Engineers to promote best practices in service instrumentation and monitoring.We pride ourselves on fostering a culture of inclusivity, diversity, and teamwork. If you aspire to be a technical leader within a collaborative environment that leverages low-level systems expertise to build foundational infrastructure for a widely-used database, we invite you to apply and help us create a faster, more reliable, and highly observable database system.

AMCS Group is seeking a Senior IT Systems Engineer to join the team in Dublin. This role focuses on maintaining and advancing the company’s IT infrastructure, supporting both on-premises and cloud environments. The position requires on-site work two days per week to assist with physical infrastructure and foster collaboration. Role overview The Senior IT Systems Engineer serves as a key escalation point for complex technical issues, providing L2/L3 support to Service Desk and IT Operations engineers. This hands-on role leads efforts to improve reliability, security, and operational efficiency across the organization’s platforms. What you will do Lead investigations and root-cause analysis for complex incidents, delivering permanent solutions and supporting colleagues with advanced technical challenges. Implement and maintain infrastructure across Windows, Linux, virtualization, and networking platforms, supporting on-premises, hybrid, and cloud environments. Administer and enhance Microsoft 365, Entra ID (Azure AD), Intune, DNS/DHCP, and identity federation services. Manage patching, configuration, and lifecycle of endpoints, servers, and network devices. Apply security best practices across identity, endpoint, network, and infrastructure layers. Support audit readiness and evidence collection for ISO27001, SOC, and internal control frameworks. Conduct audits of servers, security, and configurations to align with business continuity standards. Work environment This position is based in Dublin and requires in-person presence two days per week. AMCS Group values collaboration, openness, and creativity, supporting a culture that connects employees with their work, colleagues, and community.

About Our TeamAt OpenAI, our Forward Deployed Engineering team collaborates with clients to transform groundbreaking research into practical production systems. We thrive at the crossroads of customer engagement and foundational platform advancement.About the RoleAs a Forward Deployed Engineer (FDE), you will spearhead intricate end-to-end deployments of cutting-edge models in partnership with our most pivotal clients. You will take ownership of the entire process, from discovery and technical scoping to system design, implementation, and production launch, working closely with customer engineering and domain experts.Your success will be measured by the adoption of production systems, the tangible impact on workflows, and feedback-driven evaluations that influence product and model trajectories. Collaboration is key, as you will interact regularly with our Product, Research, Partnerships, GRC, Security, and GTM teams.This position is based in Dublin, with a hybrid work model requiring three days in the office each week. We provide relocation assistance, and travel may be necessary up to 50% of the time.Key ResponsibilitiesLead technical delivery across various deployments from initial prototype to robust production.Develop full-stack systems that not only provide customer value but also enhance our learning processes.Integrate deeply with customer teams, grasp their requirements, and facilitate the adoption of your solutions.Define project scope, sequence deliveries efficiently, and proactively eliminate barriers.Balance trade-offs between project scope, speed, and quality; adjust plans to ensure timely delivery.Contribute directly to coding when necessary to ensure progress and clarity.Document effective working patterns in tools, playbooks, or reusable components for team use.Provide field feedback that aids Research and Product in understanding model performance and areas for improvement.Maintain team momentum through clear communication and follow-through.Ideal Candidate ProfilePossess 5+ years of engineering or technical deployment experience, including customer-facing roles.Demonstrated ability to scope and deliver complex systems in dynamic or unclear environments.Proficient in writing and reviewing production-grade code across frontend and backend, particularly in Python, JavaScript, and other relevant technologies.

Join MongoDB as a Lead Engineer in Dublin, where you will play a pivotal role in driving innovative projects while leading a team of talented engineers. You will be responsible for designing and implementing cutting-edge solutions that enhance our products and services.Your expertise in software development and engineering principles will be crucial as you mentor junior engineers and collaborate with cross-functional teams. This is an exciting opportunity to make a significant impact within a leading technology company.

Bridge Engineering Technician - DublinRoughan & O’Donovan (ROD) is looking for a skilled Bridge Engineering Technician with at least seven years of relevant experience to join our dynamic bridges group in Dublin on a permanent basis.About the RoleIn this pivotal role, you will contribute significantly to the execution of our bridge and multidisciplinary projects. You will collaborate closely with our teams across Ireland and the UK, ensuring the successful delivery of high-quality engineering solutions.Main responsibilities include:Creating engineering models, drawings, and details for various bridge types, retaining walls, culverts, and additional civil structures.Preparing both conceptual and detailed design drawings.Acting as the project technician on multidisciplinary initiatives.Reviewing steel fabrication and shop drawings.Delivering high-quality engineering drawings in a timely manner.Mentoring and guiding junior team members.