Senior DevOps Engineer

Xapien

About Us Every business needs to know who they’re really working with whether it’s suppliers, investors, partners, or third parties. At Xapien, we’re reinventing how organisations do that, combining speed, scale and accuracy with cutting-edge AI. Since 2018, we’ve grown from a deep-tech startup to a global player in AI-driven due diligence and risk intelligence. 2024 was a landmark year as we closed a $10M Series A, earned recognition in the Chartis RiskTech100® and Everest Group’s Leading 50™, and expanded our products, markets and customer base. 2025 was even bigger: With new regulations, rising compliance pressure and growing reputation risks, organisations everywhere are demanding smarter, faster ways to work and they’re turning to us. Customers worldwide from global law firms and private banks to universities and nonprofits rely on Xapien to turn days of manual research into trusted insights, delivered in minutes. Our momentum so far Customers in a diverse range of industries, with particular growth in wealth management, financial services and supply chain onboarding. Demand accelerating beyond our UK headquarters, across multiple continents with new customers in the Middle East, Asia, and Oceania. Why this is an exciting time to join This isn’t just another job role; it’s an opportunity to shape the future of the due diligence industry with a market-leading product trusted by global organisations. Whether you’re in marketing, communications, sales, or finance, you’ll play a critical role in driving growth, building credibility, and defining how we connect our product to a rapidly evolving market. We’re scaling fast with more customers, more releases, and bigger regulatory and market challenges. Expectations are rising, due diligence now means real-time insight, delivered efficiently and with impact. You won’t just be executing campaigns, closing deals, or managing numbers, you’ll be influencing strategy, optimising processes, and helping position a brand that’s setting the new standard for trust and transparency. For people who love learning, innovating, and making an impact that matters now is the moment to be a part of Xapien. The role We are looking for an experienced Senior Infrastructure Engineer to help lead the design, implementation, and maintenance of our cloud infrastructure. Working directly with our Head of Platform Engineering, you will play a key role in shaping the technical future of our product. This position involves a mix of hands-on technical expertise and strategic planning, with a focus on optimizing our systems for scalability, reliability, and maintainability. We are seeking someone with a strong background in building and deploying scalable cloud-native applications on AWS, experience with microservices architecture, and a track record of automating and improving infrastructure processes to improve overall developer experience. Here’s what you will be responsible for · Designing, building, and maintaining scalable, reliable, and secure cloud infrastructure on AWS using technologies including EC2, ECS, Lambda, SQS, DynamoDB, RDS, Cognito, S3, and SNS. · Developing and deploying cloud-native applications following microservice design patterns. · Implementing infrastructure as code using tools like Terraform or CloudFormation to automate deployment and scaling processes. · Automating deployment pipelines and CI/CD processes to ensure rapid and reliable delivery of software. · Monitoring system performance, troubleshooting issues, and optimizing infrastructure for performance and cost-efficiency. · Collaborating with the development team to ensure seamless integration and deployment of applications. · Ensuring best practices in security, compliance, and data protection are followed across all infrastructure components. · Mentoring and providing guidance to junior engineers, promoting a culture of continuous learning and improvement. Your skills & experience Must-haves to be successful in this role · Strong experience in Go or C# programming languages (ideally both). · Extensive experience in building and deploying scalable cloud-native applications on AWS using technologies including EC2, ECS, Lambda, SQS, DynamoDB, RDS, Cognito, S3, and SNS. · Experience architecting cloud-native applications following microservice design patterns. · Proficiency with infrastructure as code tools like Terraform or CloudFormation. · Deep understanding of AWS services, cloud architecture, and best practices. · Experience with containerization technologies like Docker and orchestration tools like Kubernetes or ECS. · Familiarity with CI/CD pipelines and tools like Github Actions, GitLab CI, or CircleCI. · Strong understanding of networking concepts, security principles, and system monitoring. · Excellent problem-solving skills and the ability to break down complex problems into manageable tasks. · Track record of designing and implementing scalable, reliable distributed, heterogeneous systems. · Deep knowledge of cloud architecture and development best practices, design principles, and patterns. · Experience working with everything from relational databases though to a multitude of NoSQL stores. · Experience working with technologies, including message queues, event streams, authentication, caching, API hosting, containers, lambdas, FaaS patterns, orchestration / workflow engines and search engines. · Strong communication skills—our ideas are nothing if we cannot communicate them. · Analytical mindset with the ability to articulate your thinking. · Ability to work autonomously and within a team, engaging flexibly to develop solutions. Nobody can do everything but here’s a few related things we’re interested in · Experience working with multi-region cloud deployments, designing for availability, resilience and maintainability. · Security best practices and compliance standards in cloud environments. · We are primarily on AWS but experience working with GCP and Azure would be helpful. · Experience with Elastic Cloud, MongoDB, and Temporal orchestration engine. · Experience deploying machine learning systems and particularly LLMs. · Familiarity with Elastic Observability or equivalent observability platforms. · Good understanding of core DevOps concepts (containers, CICD etc). Here’s our promise to you: * We are going to work with you - to build a rewarding and fulfilling career with the opportunities, challenges and resources you need to do you your best work. * We succeed together- you will own a meaningful part of the business through our employee shares & equity programme. * Private health insurance to keep you in tip-top condition. * Life Insurance – let's hope nobody ever needs this! * Unlimited holidays – yes, it really is uncapped – take the time you need, when you need it. * Everyone is learning, developing and challenging themselves so we have a £1k professional development fund per year if you want to learn new skills, even new things outside of work. * Most importantly of all, we will work with you, to help you realise your fullest potential, always.

Xapien

About Us Every business needs to know who they’re really working with whether it’s suppliers, investors, partners, or third parties. At Xapien, we’re reinventing how organisations do that, combining speed, scale and accuracy with cutting-edge AI. Since 2018, we’ve grown from a deep-tech startup to a global player in AI-driven due diligence and risk intelligence. 2024 was a landmark year as we closed a $10M Series A, earned recognition in the Chartis RiskTech100® and Everest Group’s Leading 50™, and expanded our products, markets and customer base. 2025 was even bigger: With new regulations, rising compliance pressure and growing reputation risks, organisations everywhere are demanding smarter, faster ways to work and they’re turning to us. Customers worldwide from global law firms and private banks to universities and nonprofits rely on Xapien to turn days of manual research into trusted insights, delivered in minutes. Our momentum so far Customers in a diverse range of industries, with particular growth in wealth management, financial services and supply chain onboarding. Demand accelerating beyond our UK headquarters, across multiple continents with new customers in the Middle East, Asia, and Oceania. Why this is an exciting time to join This isn’t just another job role; it’s an opportunity to shape the future of the due diligence industry with a market-leading product trusted by global organisations. Whether you’re in marketing, communications, sales, or finance, you’ll play a critical role in driving growth, building credibility, and defining how we connect our product to a rapidly evolving market. We’re scaling fast with more customers, more releases, and bigger regulatory and market challenges. Expectations are rising, due diligence now means real-time insight, delivered efficiently and with impact. You won’t just be executing campaigns, closing deals, or managing numbers, you’ll be influencing strategy, optimising processes, and helping position a brand that’s setting the new standard for trust and transparency. For people who love learning, innovating, and making an impact that matters now is the moment to be a part of Xapien. THE ROLE We're hiring a Staff Backend Engineer to join our engineering team in a high-impact technical leadership role. You'll work on our most challenging technical problems, own parts of our platform’s architecture, and help shape the technical direction of our backend stack. Our tech stack center’s on Go microservices, with Temporal workflows, MongoDB and ElasticSearch running on Kubernetes in GCP. You'll work with modern patterns including event-driven architectures, gRPC and REST APIs, and comprehensive observability with Grafana Cloud. You'll take technical ownership of major domains within our platform - whether that's our Investigations pipeline (web scraping, data provider integrations, LLM-powered analysis) or our Core App systems (user journeys, features, and configuration). You'll be a technical authority, establishing patterns that others follow and driving initiatives that span multiple teams. WHAT YOU'LL DO * Own the technical direction and architecture for parts of our platform * Design and build complex backend services and systems that scale * Drive technical decisions that affect multiple teams * Establish patterns, standards, and best practices that others will follow * Lead complex technical initiatives from design through implementation * Identify and address systemic technical challenges across our backend * Write exemplary Go code that sets the standard for quality and design * Mentor engineers across the organization, raising the technical bar * Balance technical excellence with pragmatic delivery * Influence technology choices and architectural direction * Collaborate with engineering leadership on technical strategy * Build new systems and features while improving our existing architecture WHAT WE'RE LOOKING FOR ESSENTIAL * 10+ years of professional software engineering experience * Deep expertise in Go, with mastery of concurrency, performance optimization, and advanced patterns * Proven track record of designing and owning large-scale systems * Strong experience with distributed systems, event-driven architectures, or similar complex systems * Deep understanding of databases, particularly MongoDB or similar NoSQL systems * Extensive experience with microservices architecture and inter-service communication * Expert-level understanding of containerization (Docker) and orchestration (Kubernetes) * Experience establishing technical standards and patterns across teams * Strong architectural thinking with ability to balance trade-offs * Track record of mentoring and developing other engineers * Ability to drive technical initiatives with minimal guidance * Experience influencing technical direction at an organizational level * Excellent communication skills with ability to articulate complex technical concepts HIGHLY DESIRABLE * Experience with Temporal or similar workflow orchestration systems at scale * Deep knowledge of event streaming platforms like Kafka * Experience with LLMs and AI integration (particularly for Investigations team) * Background in SaaS platforms or B2B products at scale * Expert-level knowledge of observability tools (Grafana, Prometheus, etc.) * Deep understanding of authorization patterns, security, and multi-tenancy * Experience with protobuf and gRPC OUR TECH STACK * Languages: Go * Databases: MongoDB * Messaging & Orchestration: Temporal, Kafka * APIs: REST, gRPC, protobuf * Infrastructure: Kubernetes, GCP * Observability: Grafana stack * AI: LLMs (OpenAI, Gemini), RAG systems WHAT SUCCESS LOOKS LIKE In your first 6 months, you will have: * Owned and driven a significant technical initiative to completion * Established new patterns or improved existing ones across teams * Mentored multiple engineers, visibly raising technical standards * Contributed to architectural decisions * Been recognized as a technical authority in your domain * Made measurable improvements to system reliability, performance, or scalability * Influenced the technical direction of our backend platform Here’s our promise to you: * We are going to work with you - to build a rewarding and fulfilling career with the opportunities, challenges and resources you need to do you your best work. * We succeed together- you will own a meaningful part of the business through our employee shares & equity programme. * Private health insurance to keep you in tip-top condition. * Life Insurance – let's hope nobody ever needs this! * Unlimited holidays – yes, it really is uncapped – take the time you need, when you need it. * Everyone is learning, developing and challenging themselves so we have a £1k professional development fund per year if you want to learn new skills, even new things outside of work. * Most importantly of all, we will work with you, to help you realise your fullest potential, always.

Xapien

About Us Every business needs to know who they’re really working with whether it’s suppliers, investors, partners, or third parties. At Xapien, we’re reinventing how organisations do that, combining speed, scale and accuracy with cutting-edge AI. Since 2018, we’ve grown from a deep-tech startup to a global player in AI-driven due diligence and risk intelligence. 2024 was a landmark year as we closed a $10M Series A, earned recognition in the Chartis RiskTech100® and Everest Group’s Leading 50™, and expanded our products, markets and customer base. 2025 was even bigger: With new regulations, rising compliance pressure and growing reputation risks, organisations everywhere are demanding smarter, faster ways to work and they’re turning to us. Customers worldwide from global law firms and private banks to universities and nonprofits rely on Xapien to turn days of manual research into trusted insights, delivered in minutes. Our momentum so far Customers in a diverse range of industries, with particular growth in wealth management, financial services and supply chain onboarding. Demand accelerating beyond our UK headquarters, across multiple continents with new customers in the Middle East, Asia, and Oceania. Why this is an exciting time to join This isn’t just another job role; it’s an opportunity to shape the future of the due diligence industry with a market-leading product trusted by global organisations. Whether you’re in marketing, communications, sales, or finance, you’ll play a critical role in driving growth, building credibility, and defining how we connect our product to a rapidly evolving market. We’re scaling fast with more customers, more releases, and bigger regulatory and market challenges. Expectations are rising, due diligence now means real-time insight, delivered efficiently and with impact. You won’t just be executing campaigns, closing deals, or managing numbers, you’ll be influencing strategy, optimising processes, and helping position a brand that’s setting the new standard for trust and transparency. For people who love learning, innovating, and making an impact that matters now is the moment to be a part of Xapien. We turn a week of analyst work into seven minutes. Getting there took a while. Getting to "trust it with a £10bn decision" is the interesting part — and where you come in. THE WORK You'll own parts of the Xapien pipeline end-to-end — LLM research agents, entity resolution, report generation. Prototype, evaluate, ship, measure, improve. * Build a system optimised for accuracy, speed and cost * Design evals that measure what matters, driving meaningful improvements * Dig into the failures and fix them at the root * Shape and ship what's next - high ownership We use Claude Code by default and rarely write code ourselves. The craft is in careful prompting, tight loops, sharp evals, and spotting when the agent's quietly wrong. YOU * Fluent in Claude Code, Codex, or similar agentic tooling. * Strong numerical reasoning. Top-uni CS / maths / engineering / science, or equivalent in what you've built. * Shipped production LLM systems — RAG, prompting, agents. The kind customers pay for. * You've worked somewhere fast — startup or strong tech team — and make good calls on imperfect information. * You know software engineering: you’ve launched systems, responded to incidents, designed for failure * High-agency. You scope problems, own solutions, and help decide what we build next. * Focused on real answers for real customers. Theory's a tool, not the point. * Good to work with. Small team — it matters. Here’s our promise to you: * We are going to work with you - to build a rewarding and fulfilling career with the opportunities, challenges and resources you need to do you your best work. * We succeed together- you will own a meaningful part of the business through our employee shares & equity programme. * Private health insurance to keep you in tip-top condition. * Life Insurance – let's hope nobody ever needs this! * Unlimited holidays – yes, it really is uncapped – take the time you need, when you need it. * Everyone is learning, developing and challenging themselves so we have a £1k professional development fund per year if you want to learn new skills, even new things outside of work. * Most importantly of all, we will work with you, to help you realise your fullest potential, always.