Top Tech Jobs & Startup Jobs in London

Work directly with founders to lead cross-functional, revenue-driving initiatives: launch monetization streams, design activation and cross-sell programs, execute local growth (community, affiliates, influencers), negotiate commercial terms, and track P&L impact of projects to improve revenue, margins, and operating costs.

As a Data Analyst, you'll analyze data, build dashboards, identify trends, support decision-making, and contribute to modeling and experimentation in a fintech setting.

The Growth Analytics Lead will analyze growth data, define KPIs, conduct complex analyses, and support strategic recommendations for business performance.

As a Product Designer at ARQ, you'll create user-centered designs for a wealth and investment product, collaborating with teams to enhance user experience and bring concepts to life using Figma.

Design, develop, and maintain scalable backend systems and microservices. Build REST APIs, work on card payments, treasury, transaction booking, and crypto liquidity. Emphasize clean code, maintainability, TDD/DDD and CI/CD in a hybrid office environment.

Design, develop, and maintain scalable, secure backend systems. Build REST APIs and microservices for payments, treasury, transactions, and crypto liquidity. Work on greenfield projects and improve existing systems using Java, Postgres, Spring Boot, TDD, DDD, and CI/CD.

Design, build, and deploy machine learning models to detect fraud, prevent losses, and monitor risk. Work with Product, Engineering, and Operations to turn large-scale data into production-ready pipelines and model-serving solutions, monitor performance, and continuously improve model accuracy and business impact.

The Talent Acquisition Specialist will lead hiring efforts, build a talent team, and implement scalable recruitment programs to drive growth at ARQ. Responsibilities include sourcing candidates, managing hiring KPIs, and ensuring an exceptional candidate experience.

Lead growth-focused data science initiatives, owning LTV prediction models across countries and channels. Translate business questions into models, analyze large customer and marketing datasets, evaluate acquisition quality, monitor and productionise models with engineering partners, and drive data-informed growth and retention decisions.

Lead backend design and build scalable, secure Java-based services (APIs, microservices) for payments, treasury, transactions and crypto. Drive greenfield development, improve existing systems, apply TDD/DDD, and use CI/CD to deliver maintainable, high-performance backend solutions.