Platform Engineer

Position Overview:Join Squarepoint Capital as an Ultra Low Latency Platform Engineer, where you will play a pivotal role in enhancing our global colocation (COLO) infrastructure, encompassing over 400 servers across 30 locations worldwide. In this dynamic position, you will lead project delivery, manage support escalations, and oversee monitoring, automation, security, documentation, and capacity management for our low latency systems. Collaborate with various stakeholders, including business partners, application owners, clients, vendors, and internal teams such as SRE, Network, Application Support, Application Development, and Quantitative Analysts, to deliver comprehensive end-to-end solutions promptly.

At Flowdesk, our mission is to establish a leading global financial institution for digital assets, meticulously crafted to ensure market integrity and operational efficiency.In a fast-paced and ever-changing market environment, we adopt a structured, first-principles approach across all our operations. This methodology is reflected in our core offerings, which include institutional liquidity provision, advanced trading solutions, OTC execution, and comprehensive treasury management services. Our focus is on navigating the complexities of the market to develop resilient and scalable systems across various business lines.We are in search of passionate individuals who resonate with this systematic philosophy. Becoming part of Flowdesk means you will contribute significantly to the creation and enhancement of a more transparent and efficient infrastructure for financial markets.Are you eager to seize a thrilling opportunity within a newly established quant trading team at an innovative crypto trading firm? As a Quantitative Developer, you will play a crucial role in developing and scaling our cutting-edge HFT platform built in Rust. Your responsibilities will include but are not limited to:Algorithm Development: Design and enhance trading algorithms for low-latency, high-frequency trading.Front-Office System Development: Build and optimize systems for algorithmic trading, covering data analysis, risk management, live trading, and post-trade processes.Integration with DeFi Venues: Implement real-time data feeds from decentralized finance protocols.Model Backtesting: Evaluate algorithms with historical data to verify their effectiveness and identify areas for improvement.Founded in 2020, Flowdesk is a pioneering technology and crypto financial services firm operating globally, catering to a diverse clientele. Our ambition is to become a premier technology provider within this industry while adhering to the highest standards of compliance and efficiency. The newly formed team is led by a renowned HFT expert with a track record of building some of the most successful trading desks in the sector.Work Location: Remote or hybrid for candidates based in London, Paris, or Singapore.

At Databricks, we are dedicated to empowering data teams to tackle the world's most pressing challenges — from transforming transportation to accelerating medical innovations. Our mission is to create and maintain the premier data and AI infrastructure platform, enabling our clients to leverage profound data insights to enhance their operations. Established by engineers with a customer-centric approach, we enthusiastically seize every opportunity to address technical hurdles, whether that involves designing next-generation UI/UX for data interaction or scaling our services across millions of virtual machines. We're just getting started. The Lakebase Platform Reliability team operates across a diverse array of stacks, systems, and stakeholders. This includes AI-driven tools and workflows for customer management, real-time incident observability, and systems that support compliance through monitoring and auditing, as well as customer-facing operational APIs and maintenance workflows. As part of this team, you'll play a vital role in our overarching platform mission: to develop robust resource management infrastructure, dependable distributed services, and internal tools that empower Databricks engineers to operate seamlessly across various cloud environments.

About YouLendYouLend is an innovative and swiftly expanding FinTech firm, recognized as the leading embedded financing platform for top-tier e-commerce platforms, technology companies, and Payment Service Providers globally. Our advanced software platform empowers partners to enhance their value propositions by offering customizable financing solutions under their own brand, allowing them to serve their merchants without any capital risks.Backed by EQT, a prominent Private Equity firm, our company has experienced remarkable growth, boasting a +100% year-over-year increase since 2020. Our headquarters are in London, UK, with a presence in various European countries and the United States, supporting esteemed partners such as eBay, Amazon, Just Eat, Shopify, and Stripe.Role OverviewAs we establish a premier Observability function, we seek a passionate individual dedicated to uptime, insightful alerts, and sophisticated dashboards. If you have experience with on-call duties, managing alert noise, or debugging elusive issues across microservices during off-hours, we want you on our team!This position transcends a typical “Platform Engineer” role; you will be intensely focused on observability, system reliability, and empowering developers. You will collaborate closely with teams to understand not just when failures occur, but also why.Key Responsibilities:Designing and scaling on-call systems that engineers will appreciate being a part of.Enhancing Datadog monitoring, alerting, dashboards, and log pipelines for Kubernetes environments.Defining and managing SLOs, SLIs, and error budgets, ensuring teams adhere to them.Developing scorecards and software catalogs so engineers can easily track system health and ownership.Mentoring and enabling development teams to take charge of their own observability, alerts, and incident responses.Implementing chaos engineering practices to intentionally identify weaknesses.Fostering a culture of reliability through incident reviews, shared learnings, and transparency.Ideal Candidate Qualifications:Proven production experience with observability tools, particularly Datadog, in cloud-native settings.Experience establishing monitoring and alerting across Kubernetes services.Demonstrated ability in building or scaling on-call systems within startup or large-scale environments.Expertise in minimizing alert fatigue and a passion for effective monitoring.

Senior FPGA Engineer – DV EquitiesAbout Us:With over 15 years of experience and headquartered in Chicago, DV Trading has evolved into a leading independent proprietary trading firm. Our team of over 450 professionals offers innovative trading strategies and risk management solutions, providing essential liquidity in global financial markets. Our expansive portfolio includes broker dealers, a cryptocurrency market-making firm, and an emerging investment adviser, allowing us to deliver unparalleled hedging opportunities to commodity producers and users.Role Overview:We are seeking a talented Senior FPGA Engineer to join our semi-systematic equities team. In this pivotal role, you will design and implement cutting-edge FPGA trading systems that enhance our competitive advantage across global equity and futures exchanges. This is an exciting opportunity to lead, innovate, and maximize hardware performance in a dynamic trading environment.Key Responsibilities:Provide technical leadership and mentorship to a team of FPGA engineers focused on developing advanced hardware solutions for market making.Architect and optimize ultra-low-latency trading systems tailored for global equity and futures markets.Define and execute the strategic vision and roadmap for FPGA-based trading infrastructure.Collaborate closely with quantitative researchers, software developers, and network engineers to create integrated, high-performance trading platforms.System Development:Design and implement high-throughput FPGA firmware for efficient market data feed management and order execution.

What You'll Accomplish:As a Senior Data Reliability Engineer, you will spearhead the integration of Site Reliability Engineering (SRE) across all engineering practices. Your leadership will ensure that every engineer and team is dedicated to crafting software that is not only resilient but also exceptionally reliable. You will collaborate with a diverse, cross-functional team of subject matter experts and on-call engineers, focused on maintaining high performance of our platform around the clock.Overseeing a comprehensive suite of products, you will be responsible for the reliability of enterprise-grade applications that process thousands of queries per second. Elliptic is acclaimed for its extensive and dependable datasets, and your role will be pivotal in establishing a market-leading infrastructure for data quality and governance. This involves creating the processes, culture, and frameworks that will enhance observability, data quality, lineage, and remediation, forming a crucial backbone of our data and intelligence platform.Your Responsibilities:This role spans multiple teams, and you will receive full support from leadership and engineering while showcasing exemplary standards. Your main tasks will include:Promote the principles of SRE and DRE throughout the engineering teams.Lead the development of a data quality framework that assures our clients of the accuracy of our data and supports marketing and revenue initiatives.Define and manage the on-call process within the SRE function:Quickly gain an in-depth understanding of our systems.Lead incident management.Conduct post-incident reviews.Ensure timely completion of follow-up actions.Assess and enhance our existing end-to-end on-call processes.Participate in the on-call rotation, approximately every 4 to 5 weeks, ensuring 24/7 coverage.Evaluate, manage, and improve our current monitoring, alerting, paging, and documentation solutions.Provide reports on system uptime, availability, and performance across our product range.Draft post-mortem reports for both internal and external stakeholders.Represent the SRE and DRE functions during discussions with top-tier enterprise financial institutions.

About Neo4j Neo4j builds a graph intelligence platform used by 84 of the Fortune 100 and supported by the world’s largest graph community. The platform powers knowledge graphs for AI, delivers reliable graph capabilities across cloud environments, and integrates with a wide range of systems. Neo4j’s technology is designed for precision, accountability, and governance, helping organizations turn data into actionable insights for intelligent applications and AI systems. Engineered for seamless operation in any cloud, Neo4j supports dynamic, personalized, and autonomous AI solutions. The focus is on delivering swift results, contextual knowledge, and solutions that improve both customer and employee experiences. Our Vision Neo4j’s mission is to help the world understand data. As business and society become more interconnected, Neo4j’s technology enables organizations to find and understand relationships within their data. The company pioneered the graph database category and continues to lead in helping teams innovate and stay competitive. About the Site Reliability Engineering Team The Site Reliability Engineering (SRE) team supports Neo4j’s Database as a Service (DBaaS) product, Neo4j Aura. Aura operates globally across all major cloud providers, running hundreds of Kubernetes clusters and managing thousands of Neo4j instances in production. This team is redefining SRE within Neo4j Aura. Rather than simply reacting to incidents, the SRE group empowers teams to design for reliability from the start. The work centers on building tools, practices, and a culture that embed SRE principles into the foundation of Aura’s operations. Collaboration with product teams and a commitment to resilience and engineering excellence are central to the team’s approach. What You Will Do Automate for insight and scale: Build systems that enable fast, safe, and scalable troubleshooting across thousands of Neo4j instances. This includes developing internal tools that provide actionable insights. Location London

At Orgvue, we are at the forefront of organizational design and planning software, harnessing the transformative power of data visualization and modeling to help organizations become more adaptable and high-performing. Our platform empowers HR, finance, and business leaders to make swift, informed workforce decisions in an ever-evolving landscape.Trusted by some of the world's largest enterprises and renowned management consulting firms, Orgvue enables organizations to visualize and proactively shape their futures. Headquartered in London, we also have offices in Philadelphia, The Hague, Toronto, and Sydney.We are currently on the lookout for a Principal Site Reliability Engineer to join our team as a senior technical leader specializing in scaling and fortifying our AWS and Kubernetes-based infrastructure.Role OverviewIn this pivotal role, you will collaborate with product, platform, and operations teams to ensure our systems are reliable, observable, and resilient, even at scale. This position marries hands-on technical proficiency with strategic foresight, enabling us to cultivate a world-class reliability culture and a strong engineering framework for growth. We seek an individual with robust technical skills, exceptional communication abilities, and a passion for cross-team collaboration.Key ResponsibilitiesEstablish and uphold SLOs, SLIs, and error budgets across vital servicesDesign and execute a comprehensive cloud infrastructure and tooling strategyElevate SRE practices organization-wideImplement effective observability metrics, logs, and traces using our observability toolsLead the team in creating automated, self-healing systemsManage and refine our incident response protocols, including on-call practices and a post-mortem cultureMentor engineers throughout the organization on reliability best practices, operational readiness, and scalable infrastructureDrive Infrastructure as Code (IaC) initiatives using Terraform, Kubernetes, CloudFormation, and GitOps methodologiesWork closely with security, DevOps, and software teams to guarantee compliance, scalability, and operational excellenceAssess and introduce tools, patterns, and practices that enhance the performance and reliability of our SaaS platformQualificationsProven experience leading SRE transformationsExtensive hands-on expertise with Kubernetes (EKS preferred) in production settingsStrong proficiency with AWS core services (EC2, EKS, RDS, S3, ALB/NLB, IAM, CloudWatch, etc.)Expertise in Infrastructure as Code utilizing tools such as Terraform, with familiarity in GitOps workflowsSolid background in observability: metrics, visualization, logging, and tracingUnderst...

Role overview The Forward Deployed Reliability Engineer at Palantir Technologies in London plays a key role in supporting the reliability and performance of Palantir's software as it becomes part of client operations. This position centers on ensuring that solutions remain stable and effective after deployment. What you will do Partner with clients to help integrate Palantir's technology into their daily workflows. Troubleshoot and resolve complex technical challenges to keep systems stable. Work to optimize performance and apply established reliability engineering practices. Collaborate with teams across disciplines to enhance system functionality and deliver results for clients.

C++ Developer – High Frequency Trading SystemsJoin MARGO in London – Exceptional Trading EnvironmentsAt MARGO, we are a technology-driven consultancy that provides premier software engineering services to the world's most demanding financial market environments.We specialize in latency-critical trading scenarios where performance, determinism, and predictability are paramount. Our consultants work in highly specialized trading environments, creating systems that communicate directly with exchanges and market venues under intense time constraints.Business ContextYou will be part of a High Frequency Trading / Low Latency Trading environment collaborating with one of our partners, which may include investment banks, proprietary trading firms, or market makers.Our teams design, build, and operate latency-sensitive trading systems that are directly connected to exchanges, typically deployed in colocated environments.These systems are known for:·Microsecond to sub-microsecond latency constraints·Deterministic and predictable execution paths·Minimal software and network overhead·Direct interaction with market data feeds and order gatewaysRole OverviewWe are seeking a C++ Software Engineer focused on developing latency-critical trading infrastructure.This position is primarily engineering-driven, emphasizing speed, predictability, and control of execution rather than just functional feature delivery.Depending on the environment, you may also interact with C# components utilized outside of the ultra-latency-critical execution path.Key ResponsibilitiesCore HFT EngineeringEngage in the design and enhancement of high-performance trading systems to meet stringent latency requirements.

Join our dynamic Release Engineering team at Kaluza as a Site Reliability Engineer. In this pivotal role, you will play a crucial part in enhancing our software development lifecycle by developing innovative engineering solutions that empower our software teams to deploy high-quality code efficiently. Your efforts will significantly boost engineering productivity through the optimization of testing, deployment, and release processes across all Kaluza engineering teams.

About Gigs Gigs builds a platform that lets tech companies add global mobile connectivity to their products. The goal: make integrating telecom as simple as integrating payments. By automating provisioning and removing telecom hurdles, Gigs helps businesses from fintechs to HR platforms offer mobile services without the usual complexity. The team numbers around 100 people, spread across the US and Europe. Gigs has raised close to $100 million from investors including Ribbit Capital, Google, and Y Combinator. The company brings together engineers and product leaders from places like Stripe, Airbnb, and Shopify, all focused on solving technical and regulatory challenges in telecommunications. Curiosity, creativity, and a drive to shape the future of telecom matter here. Gigs welcomes people who want to tackle tough problems and make an impact. Core Values Speed: Move quickly and deliver. Ambitious deadlines are the norm, and each week counts. Ownership: Spot a problem? Step up and fix it without waiting for approval. Customer Obsession: The success of customers is central to every decision. Ambiguity: Work often involves making decisions with incomplete information. Judgment and instinct matter. First Principles: Question assumptions and dig into the reasons behind how things are done. Role Overview: Senior Platform Engineer (London) This role sits at the heart of Gigs’ technical operations. Senior Platform Engineers design, build, and maintain the infrastructure and developer tools that power the company’s connectivity and payments platform. The work enables product teams to ship faster and more reliably, supporting growth at scale. The Foundation team owns the core systems every Gigs engineer depends on: CI/CD pipelines, cloud infrastructure, observability, deployment tools, and shared platform services. Taking on complex infrastructure challenges is a key part of the job, with a focus on keeping systems efficient and dependable.

Note: Please apply only to the position that aligns best with your skills and experience. If we believe you may be a better fit for another position, we will reach out to discuss that opportunity.About the Role:At Squarepoint Capital, we leverage C++ to develop our core low-latency, high-performance trading systems that play a pivotal role in our trading operations. Your contributions will directly influence our trading success by optimizing trading processes, delivering real-time market data, and ensuring critical market connectivity for our daily operations. You may take on the challenge of designing and implementing trading frameworks, centralized services that handle vast amounts of data, or other high-volume distributed applications at Squarepoint.Regardless of the project, you will be at the forefront of high-performance software development, advancing your skills in a collaborative and engaging environment.

Location: London, Waterloo (Hybrid, 4 days in-office - Wednesday is our designated work from home day, though you are welcome to join us in the office on Wednesdays if you prefer)At getground, we are revolutionizing one of the world's most significant asset classes: property. With over £2 billion in assets on our platform and a community of more than 30,000 users across 70 countries, we are shaping the future of asset ownership and tackling wealth inequality.Our innovative product streamlines property investing from start to finish, making real estate investment accessible to everyone.Your Key Responsibilities:Collaborating within cross-functional product teams to transition infrastructure and reliability initiatives from concept to live deployment.Thriving in a dynamic environment where autonomy and ownership are fundamental to our operations.Developing and sustaining a robust, scalable infrastructure within our GCP cloud ecosystem. Utilizing Kubernetes, Terraform, Cloudflare, and cutting-edge observability tools to ensure seamless platform functionality.Working closely with engineering teams to formulate CI/CD pipelines, enhance deployment methodologies, and advocate for reliability as a core engineering principle.Contributing to the establishment of SRE practices for a rapidly growing fintech platform. Mentoring fellow engineers as we expand our teams and influence.Your Day-to-Day Activities:Designing, implementing, and maintaining cloud infrastructure on Google Cloud Platform (GCP), ensuring it meets scalability, reliability, and security standards.Taking ownership of our Kubernetes clusters and containerization strategy, including Docker image optimization, cluster management, and deployment orchestration.Creating and optimizing Infrastructure as Code using Terraform, producing modular, testable, and well-documented configurations that adapt to our rapid growth.Managing and enhancing our Cloudflare infrastructure, including Workers for edge computing, DNS, CDN, security policies, and performance optimization.Implementing AI-powered product features in isolated and secure serverless environments.Establishing comprehensive monitoring and observability with Prometheus and Grafana, defining SLIs/SLOs, and proactively identifying potential issues before they affect users.Designing and maintaining CI/CD pipelines with appropriate quality gates, testing strategies, and deployment methodologies (blue-green, canary) to facilitate rapid deployments.

About WheelyWheely is revolutionizing premium transportation in major cities across Europe, the United States, and the Middle East. We seamlessly integrate cutting-edge technology with the artistry of five-star chauffeuring to provide an unparalleled experience that has earned the trust of over 100,000 active riders and 1,200 corporate clients.As a profitable and rapidly growing scale-up, we have raised $43M and surpassed $100M in annual revenue. Following our recent launch in New York City, we are swiftly expanding across the US and EMEA. If you take pride in your craft and are eager to contribute to our next phase of growth, we invite you to connect with us.Our infrastructure has been rebuilt almost from the ground up over the past few years, and we are now seeking to further expand our infrastructure team.As a valued member of our team, you will focus on minimizing incidents related to availability, performance, and security. You will accelerate the delivery of new features to customers by building flexible, highly available, and secure infrastructure, ensuring a smooth journey for every customer.

Join our dynamic Systems Engineering team as a pivotal and trusted DevOps Engineer / Site Reliability Engineer. Collaborating closely with software engineers, you will design and implement mission-critical services and systems. Your role will involve managing infrastructure and services at scale, employing a diverse array of cutting-edge technologies that support our high-traffic, real-time Freelancer.com marketplace as well as various other business products deployed on Amazon Web Services. Our technology stack includes Nginx, MySQL, Redis, ElasticSearch, RabbitMQ, Consul, Docker, and Kubernetes. We aim to build highly resilient, dynamically scaling, self-healing systems by automating and monitoring all processes using tools such as Terraform, Puppet, Prometheus, Grafana, Kibana, and Jenkins.

Join Wayve Technologies as a Staff Cloud Site Reliability Engineer and play a pivotal role in shaping the future of autonomous driving technology. In this position, you will leverage your expertise to enhance the reliability, performance, and scalability of our cloud infrastructure. Collaborate with cross-functional teams to design robust systems that can handle high traffic and ensure seamless operation.

About xAIAt xAI, our mission is to develop advanced AI systems that can comprehend the universe and assist humanity in its quest for knowledge. Our dedicated team is small, highly motivated, and committed to engineering excellence, making it an ideal environment for individuals who thrive on challenges and curiosity. We foster a flat organizational structure where every employee plays a crucial role in driving our mission forward. We value initiative and excellence, rewarding those who consistently demonstrate strong work ethic and prioritization skills. Effective communication is essential, and all team members are expected to share their insights clearly and concisely.About the TeamYou will join a team responsible for the backend services that power our innovative products, including grok.com and our API. Our focus is on developing and maintaining highly scalable and reliable services capable of efficiently processing tens of thousands of queries per second, hosted across multiple Kubernetes clusters in both on-premises and cloud environments.About the RoleWe are looking for a candidate who meets the following criteria:In-depth expertise in Kubernetes.Proficiency with continuous deployment systems, including Buildkite and ArgoCD.Extensive experience with monitoring tools such as Prometheus, Grafana, and PagerDuty.Strong knowledge of infrastructure as code practices utilizing tools like Pulumi or Terraform.Familiarity with systems programming languages such as Rust, C++, or Go.Experience in traffic management and HTTP proxies, such as nginx and envoy.LocationThis position requires in-person attendance in London, UK. While we typically work from the office five days a week, we do provide flexibility for remote work when necessary. Candidates should be prepared to attend late meetings at least once a week to coordinate with our global teams.

Your ImpactAs a Senior Platform Engineer at DISCO, you will lead significant projects and play a pivotal role in the success of our engineering teams. Your expertise will inform long-term strategic planning, mentorship for senior engineers, and steer technical decisions across various teams or departments. Your focus will be on system design, implementation, and the ongoing maintenance and enhancement of DISCO’s distributed data platform.What You'll DoTechnical Leadership and Mentorship: Assume a leadership role in project teams, guiding engineers and influencing technical decisions, while innovating and solving complex organizational challenges.Performance Optimization: Design systems that emphasize high performance, scalability, and reliability.Ownership: Proactively identify and address potential issues within products and systems, creating actionable plans for resolution.Stakeholder Engagement: Collaborate closely with stakeholders including product managers, designers, developers, and executives to ensure architectural designs align with business needs and customer expectations.Software Development: Develop, maintain, and enhance sophisticated, scalable, high-performance data software solutions tailored for our big data platform at a petabyte scale, ensuring architectural excellence.Code Quality and Optimization: Commit to and enhance code quality through thorough review processes, optimization techniques, and adherence to industry best practices.Technical Problem Solving: Tackle intricate technical challenges with innovative problem-solving approaches.Collaboration and Communication: Work effectively within the engineering team and cross-functional teams, fostering collaboration with engineers, product managers, and stakeholders during project planning and execution.Continuous Learning and Adaptation: Stay abreast of the latest technological trends and advancements, continuously improving your skills and knowledge to contribute innovative ideas to the team.Technical Documentation: Generate and maintain comprehensive technical documentation to ensure clarity and accessibility of information.Data Platform Development: Construct and sustain robust and scalable data platforms to facilitate analytics, machine learning, and business intelligence.Data Integration and ETL: Design and optimize ETL (Extract, Transform, Load) processes, ensuring efficient data integration.