Senior Software Engineer

Senior Software Engineer | Hybrid – London | £95,000 – £110,000 DOEWe’re partnering with a high-growth B2B PropTech SaaS business that’s transforming how property professionals access and leverage land data across the UK.In just a few years, the company has built one of the most advanced property data platforms in the market, integrating thousands of data sources and processing terabytes of information with sub-24-hour latency. With strong product-market fit, continued revenue growth, and ambitious scaling plans, they’re now hiring 2 Senior Software Engineer's to help shape the next phase of the platform.This is a hands-on role within an engineering-led, collaborative environment, ideal for someone who enjoys balancing architectural ownership with meaningful day-to-day coding.The RoleAs Senior Software Engineer, you’ll combine deep technical expertise with strong architectural oversight. You’ll help to drive technical excellence across the organisation and influence the long-term direction of the platform.You’ll contribute to the codebase daily while also shaping standards, systems, and engineering culture.What You’ll Be DoingTechnical & ArchitectureProvide architectural oversight across frontend, backend, and data infrastructureSet engineering standards and champion best practices in scalability, reliability, and maintainabilityLead complex system design discussions, balancing speed, scope, and long-term scaleShape the technical roadmap alongside product and data leadersHands-On EngineeringDevelop high-quality front-end features using React (Vite) + TailwindDesign and ship scalable, type-safe APIs using Node.js, Express, and tRPCOptimise and maintain PostgreSQL databases and query performanceCollaborate with the data team to evolve Elasticsearch-driven architectureOwn delivery of complex features from discovery through deployment and monitoringTeam Leadership & Cross-Functional ImpactFoster a high-performance engineering culture built on ownership and continuous improvementWork closely with product, design, and data stakeholders to ensure technical input shapes roadmap decisionsTranslate complex technical challenges into clear, actionable insights for non-technical teamsWhat We’re Looking For7+ years’ experience in software engineeringProven experience building and scaling SaaS platformsExperience leading architectural decisions and system design initiativesStrong full-stack capability in modern JavaScript/TypeScript environmentsTech StackFrontend: React, TailwindBackend: Node.js, tRPCDatabases: PostgreSQL, ElasticsearchWhy Apply?Hybrid workingCompetitive salary + EMI scheme25 days holiday + bank holidays + birthday off + Christmas shutdownHealth cash plan (including dental)£500 annual personal development budgetMacBook + home office contributionCollaborative, ambitious team culture with regular socials and company tripsIf you’re an experienced engineer who thrives on technical depth, and you want to help scale a genuinely high-impact data platform, we’d love to share more.