Top Tech Jobs & Startup Jobs in London

Build and maintain scalable full-stack features for UNiDAYS’ B2B marketplace and verification services. Develop resilient, secure, observable, and performant solutions using modern cloud-based, event-driven architecture. Collaborate with product managers, designers, and engineers; contribute to code reviews, testing, monitoring, incident response, and system availability. Apply pragmatic AI, agile practices, and strong engineering craft while aligning technical work with user and business goals.

Lead high-impact strategic programs from concept through measurable business outcomes. Drive cross-functional execution, remove blockers, accelerate decisions, manage trade-offs, and ensure operational readiness. Partner with executives, prepare governance forums, align product, commercial, and marketing teams, and create decision-ready proposals. The role requires strong commercial judgment, comfort with ambiguity, and the ability to challenge assumptions and pivot plans based on results.

Leads engineering for a new business unit, setting technical direction, architecture, engineering practices, and delivery standards. Builds and scales the engineering team, remains hands-on with coding and reviews, partners with Product and Design on roadmap decisions, and develops future leaders. Owns quality, security, scalability, observability, incident response, stakeholder communication, hiring, and collaboration with Platform and Data teams.

Supports Account Directors and Managers by coordinating partner communications, campaign and content delivery, reporting, and operational execution. Collaborates with Product Operations and Marketing to deliver campaigns on time, optimize app offers and content, maintain partner standards, and provide actionable insights.

Build and maintain scalable marketplace and identity products using TypeScript, Next.js, and React. Deliver impactful, tested features; collaborate with product managers and engineering leaders; communicate technical risks; and support system availability, monitoring, incident response, performance, security, and observability. Contribute code reviews, pair programming, maintainability improvements, pragmatic AI use, and alignment between engineering work, user needs, and business goals.

Owns UNiDAYS’ global privacy program, embedding privacy by design across products and technology. Responsibilities include GDPR and international privacy compliance, audits, DPIAs, data mapping, risk remediation, incident and data-subject-rights oversight, AI governance, vendor and transfer assessments, stakeholder advice, training, and executive reporting. The role independently manages privacy processes, tools, governance, and commercial data-protection matters while partnering closely with Product, Engineering, Commercial, Information Security, and external DPO resources.

Financial Accountant responsible for monthly financial reporting, revenue analysis, accruals, provisions, budget variance analysis, balance sheet reconciliations, tax compliance, payroll processing, and audit coordination across multiple regions. The role also supports management accounts and KPI reporting, liaises with tax advisors and auditors, and independently improves accounting processes while maintaining high accuracy and compliance.

Drives scalable business processes, workflow automation, cross-functional enablement, governance, reporting, and OKR adoption. Leads operational initiatives from design through implementation and handover, facilitates business review cycles, synthesizes complex data into strategic insights, tracks execution against KPIs, and escalates risks to senior leadership. The role improves operational efficiency, accountability, and measurable outcomes across the organization.

Own analytical deliverables and medium-sized insight projects supporting product, business, and digital performance. Use SQL, Python, statistical methods, Tableau, and analytics platforms to identify trends, evaluate user behavior, design experiments, and optimize product features. Partner with stakeholders to define metrics, scope projects, communicate findings, and provide actionable recommendations. Analyze product lifecycle data to improve adoption, engagement, and retention while supporting junior team members.

Implements and maintains digital and product analytics tracking across mobile apps and websites. Translates business and stakeholder requirements into measurement specifications, configures MarTech tags, and partners with engineering teams on implementation, QA, UAT, and release monitoring. Supports data governance, troubleshooting, documentation, analytics debt reduction, and marketing technology delivery using Google Analytics 4, Google Tag Manager, Firebase, and Segment.