Senior Full Stack Engineer (Remote | Americas)Base salary: $211,000–$250,000Significant equity packageFully remote across the Americas (No New Visa Sponsorship available, H1B transfer only)Opportunity to join a high-growth, mission-driven business with strong product-market fitBuild products that solve complex, real-world challengesWe are looking for a Senior Full Stack Engineer with 5+ years of experience to build customer-facing products that help investigators and analysts fight crypto-related financial crime.You're someone who has led features from 0 to 1 at a high-growth startup, thrives in ambiguity, and deeply cares about the customer experience. You'll work across the stack (60% backend, 40% frontend), designing APIs and shaping the product journey for non-technical users, such as intelligence analysts.What You'll Be DoingBuilding customer-facing products, APIs, and services used at scaleLeading features from concept through delivery with a high degree of ownershipDesigning scalable systems and APIs that support growing customer demandCollaborating with product and customers to turn business challenges into technical solutionsContributing across the stack, with a focus on backend development and product deliveryWhat We're Looking For5+ years of full-stack software engineering experienceProven experience building and launching products or major features from 0?1 within a high-growth startup environmentStrong experience designing and shipping production-grade customer-facing APIsStrong system design and architecture skillsCommercial experience with React and TypeScript/JavaScript-based applicationsExperience working with relational databases such as PostgreSQL and large-scale data platformsTrack record of taking ownership and delivering impactful products with limited directionAbility to work directly with customers and translate user needs into product requirementsComfortable operating in fast-changing, ambiguous environmentsRegular user of AI tools to improve engineering productivity and workflowsNice to HaveExperience building Enterprise SaaS productsExperience creating products for analysts, operations teams, or other non-technical usersExposure to data-intensive or highly regulated industriesNot the Right Fit If...You prefer highly structured environments over fast-moving startups.You haven't built and shipped customer-facing APIs in production.You're looking for a purely frontend or backend role rather than full-stack ownership.You prefer defined requirements over helping shape products from the ground up.You're uncomfortable working through ambiguity and evolving priorities.We welcome applications from people of all backgrounds and are committed to creating an inclusive and accessible recruitment process for everyone.