Top Tech Jobs & Startup Jobs in London

Own Refractal’s infrastructure, release processes, cloud deployments, and customer-hosted packaging. Responsibilities include hardening Google Cloud, building secure CI/CD pipelines with signed artifacts and supply-chain verification, managing secrets and environment isolation, automating compliance controls, and improving observability. The role requires production infrastructure ownership, Terraform, Kubernetes, cloud networking and IAM, software supply-chain security, and Python or Go automation.

Manage UK and European enterprise customers after signing by leading technical onboarding, troubleshooting integrations, coordinating engineering escalations, driving adoption, conducting business reviews, owning renewals, and identifying expansion opportunities. The role also translates customer feedback into product requirements and creates scalable technical account management playbooks. Success requires strong retention and expansion performance, technical knowledge of cloud, APIs, identity, SaaS integrations, and AI agents, plus confidence with senior stakeholders.

Build and own Refractal’s data foundation, including a cryptographically signed evidence store, streaming and batch pipelines, data quality and retention controls, compliance reporting datasets, and training and evaluation data. Partner with integrations, data science, and security teams to support regulated customers, ensuring strong provenance, auditability, multi-tenant isolation, data residency, and deletion controls.

Build and maintain integrations with security and observability platforms, including Splunk. Develop reliable pipelines for ingesting, validating, and transforming security data. Design integration interfaces, implement testing and monitoring, securely handle credentials, investigate customer issues, and improve reusable integration patterns and documentation. Work closely with security and platform engineers and customers to deliver reliable production software.

Own day-to-day business operations across finance, people operations, legal and compliance administration, internal systems, offices, travel, and events. Coordinate accountants, advisers, suppliers, payroll, onboarding, contracts, filings, insurance, security certification evidence, and international requirements across the UK, Montenegro, and United States. Build scalable processes, maintain tools and policies, and reduce routine administrative work for the founders while ensuring predictable finance, payroll, onboarding, and compliance operations.

Own Refractal’s core platform across APIs, SDKs, services, data layers, identity controls, event streams, audit systems, and operator workflows. Build FastAPI services, authentication and multi-tenant access controls, integrations, dashboards, and deployment infrastructure. The role requires strong backend and API design skills, database and observability experience, frontend capability with JavaScript and React, and independent ownership of complex customer problems.

Leads Refractal’s content and marketing function by producing technical AI security content, developing sales enablement materials, running campaigns, webinars, and events, and managing digital channels. The role collaborates with sales, partners, engineers, and researchers to generate measurable marketing-sourced pipeline and communicate complex security topics clearly to B2B technology audiences.

Works directly with company founders to scope and deliver priority projects across commercial execution, recruiting, market and competitor research, and operational process improvement. The role requires framing ambiguous problems, producing concise recommendations, coordinating owners and milestones, improving workflows, and creating durable documentation. Success depends on sound judgment, strong organization, clear communication, discretion, adaptability, and reliable follow-through in an early-stage cybersecurity and AI company.

Lead product design for an AI security platform, including operator console workflows, policy authoring, investigations, audit reporting, and a product design system. Translate complex technical data into clear interfaces, conduct customer research, collaborate with engineers to ship designs in React, and contribute to brand and website visuals. The role requires strong interaction and visual design, expert Figma skills, experience with data-heavy B2B or technical products, and comfort using AI tools.

Security Engineer focused on detection and response, translating analyst workflows into product requirements and test cases. Responsibilities include writing and tuning detection rules, using Splunk or Datadog SIEMs to investigate threats, evaluating detection quality, identifying false positives, and collaborating with software, research, and customer teams. The role also involves shaping product integrations, validating security outputs, and incorporating practitioner feedback into engineering decisions.