Top Tech Jobs & Startup Jobs in London

Leads asset and liability management for a multi-currency fintech balance sheet. Builds liquidity, FX, interest-rate, funding, counterparty-risk, safeguarding, and governance frameworks across multiple jurisdictions. Establishes ALM policies, risk limits, stress testing, contingency funding, ALCO processes, regulatory compliance, and balance-sheet reporting. Partners with Finance, Treasury, Risk, Product, Compliance, and Engineering while presenting to executives and the board.

Build and improve SIEM detections, alert pipelines, response playbooks, and DLP controls. Conduct incident response readiness, cloud security assessments across AWS and Kubernetes, application security initiatives, and AI workflow security reviews. Establish vendor security assessments and third-party due diligence processes. The role requires hands-on cybersecurity experience in regulated financial environments, strong communication skills, and regular in-office work three to four days weekly.

Own and improve finance data models, revenue and cost reporting, management accounts, budgeting, forecasting, reconciliations, dashboards, and data controls. Build dbt models and Python services, map financial data sources, support new products and markets, investigate anomalies, and explain business performance to Finance and Engineering stakeholders. The role requires strong SQL, Python, finance fundamentals, and experience with data transformation and version control.

Own end-to-end detection engineering in Datadog Cloud SIEM, including log onboarding, rule development, testing, tuning, MITRE ATT&CK mapping, and detections-as-code. Build AI-powered automation for validation, triage, and threat hunting; investigate incidents; develop response capabilities; and report coverage and performance to security leadership. The role requires independent ownership within a small global security team and involves working in-office three to four days weekly.

Independently test BSA/AML, KYC, OFAC, and transaction-monitoring controls; analyze data, challenge thresholds and sampling, rate evidence-based findings, track remediation issues, escalate overdue items, and support regulatory exams and audits.

Design, develop, and maintain scalable backend systems for fintech products. Build REST APIs and microservices supporting card payments, treasury management, transaction booking, and crypto liquidity. Develop greenfield and existing systems using Java, PostgreSQL, and Spring Boot, with emphasis on clean, maintainable code, TDD, DDD, and CI/CD. Collaborate with a high-performing team to deliver secure, high-impact products in a hypergrowth startup environment.

Design, develop, and maintain scalable backend systems for fintech products. Build REST APIs and microservices supporting card payments, treasury management, transaction booking, and crypto liquidity. Contribute to greenfield development and existing-system improvements using Java, PostgreSQL, Spring Boot, clean code, TDD, DDD, and CI/CD. Collaborate with a high-performing team to deliver secure, maintainable products.

Design, develop, and maintain scalable, secure backend systems for fintech products. Build REST APIs, microservices, and systems supporting card payments, treasury management, transaction booking, and crypto liquidity. Use Java, Spring Boot, and PostgreSQL while applying clean code, TDD, DDD, and CI/CD practices. Collaborate with a world-class team to deliver greenfield and existing-system improvements.

Own strategic and operational initiatives from problem definition through execution and measurement. Identify growth and efficiency opportunities, analyze data and market insights, improve processes using AI and automation, track performance metrics, and coordinate cross-functional teams. The role also manages relevant partnerships with banks, processors, and other strategic providers while supporting business priorities in a fast-growing fintech environment.

Leads ARQ’s global tax strategy, governance, compliance, transfer pricing, indirect taxes, financial reporting, and fintech-specific tax obligations across the US and Latin America. Oversees tax filings, provisions, audits, withholding, transaction taxes, and cross-border structures while partnering with Product and Engineering to automate tax logic. Builds the tax team, manages external advisors, advises executives and the Board, and supports international expansion and regulatory licensing.