Senior Full Stack EngineerLocation: Remote (United States, Canada, Latin America) Company Stage of Funding: Series C / AI + Blockchain Intelligence + Financial Crime Investigation Platform Office Type: Remote (Minimum 6 hours overlap with PST) Salary: $211,000 – $250,000 Base Equity: $260,000 – $400,000 over 4 years vesting Bonus: Competitive total compensation package Visa: H1B Transfer supported (No new visa sponsorship)Company DescriptionOur client is building the intelligence infrastructure that helps governments, financial institutions, and investigators combat crypto-related financial crime.The company develops AI-powered blockchain intelligence platforms used by law enforcement agencies, regulators, financial institutions, and cryptocurrency companies to investigate fraud, ransomware, sanctions evasion, terrorist financing, and other illicit financial activity.Founded in 2018 and backed by leading investors including Goldman Sachs, Thoma Bravo, and Y Combinator, the company has raised over $220M and recently achieved a $1B valuation following its Series C financing.Trusted by more than 600 organizations across 75+ countries, including the FBI, US Secret Service, IRS, Europol, Visa, PayPal, Coinbase, and Goldman Sachs.The platform combines:Blockchain intelligenceAI-powered investigationsFinancial crime detectionCrypto analyticsThreat intelligenceEntity attribution systemsRisk monitoringCompliance infrastructureLarge-scale data platformsCustomer-facing investigation toolsEngineering challenges involve building scalable customer-facing products, distributed systems, blockchain data infrastructure, high-performance APIs, analytics platforms, and investigator workflows operating at petabyte scale across 180+ blockchains.The company is at a stage where engineers can have meaningful product ownership while benefiting from strong product-market fit, substantial funding, hypergrowth, and mission-driven work.The culture values ownership, craftsmanship, customer obsession, collaboration, humility, and building products that create real-world impact.What You Will DoBuild customer-facing products used by investigators, analysts, and compliance teamsDesign and implement scalable APIs and backend servicesOwn features from concept through production deploymentBuild full-stack applications across backend and frontend systemsDesign intuitive user experiences for non-technical usersCollaborate with customers and internal stakeholders to understand pain pointsTranslate customer requirements into technical solutionsDesign database schemas and backend architecturesBuild distributed systems supporting large-scale blockchain intelligence workflowsImprove platform reliability, scalability, and performanceWork across React, backend services, databases, and APIsDevelop analytics and investigation workflowsParticipate in architecture and system design discussionsDrive technical decisions across product initiativesBuild and ship greenfield features with high ownershipCollaborate closely with engineering, product, and customer-facing teamsMentor engineers and contribute to engineering excellenceOperate as a senior individual contributor with significant ownershipBuild products that help prevent financial crime globallyIdeal Candidate Background5–10 years of experience in full-stack software engineeringExperience at high-growth startups (Seed through Series C)Experience leading products or features from 0 ? 1Strong ownership mentality and startup mindsetStrong backend engineering experienceExperience designing and shipping customer-facing APIsStrong system design and architecture skillsExperience with React and modern frontend developmentExperience with relational databases such as PostgreSQLExperience working with analytical databases and data-intensive applicationsStrong software engineering fundamentalsExperience building enterprise SaaS productsAbility to work effectively in ambiguous environmentsExperience collaborating closely with customers and stakeholdersStrong communication and product thinking skillsHands-on experience using AI tools in engineering workflowsAbility to own projects end-to-endBS/MS in Computer Science or related technical field preferredCompensation and BenefitsBase salary: $211,000 – $250,000Equity package valued at approximately $260,000 – $400,000 over four yearsOpportunity to join a Series C company at $1B valuationFully remote work environmentSignificant ownership over product direction and architectureDirect impact on products used by governments and financial institutionsWork alongside highly experienced engineering teamsExposure to AI, blockchain intelligence, and financial crime investigationStrong product-market fit and hypergrowth environmentOpportunity to help build a safer global financial systemHigh autonomy and influence as a senior individual contributorWhy JoinThis is an opportunity to build mission-critical software that helps governments and financial institutions combat financial crime at global scale.Rather than working on internal tools or experimental products, you'll build customer-facing systems used daily by investigators and analysts solving real-world problems involving fraud, ransomware, sanctions evasion, and illicit finance.You'll join a rapidly growing Series C company with exceptional traction, strong funding, and a clear mission while maintaining the ownership, autonomy, and speed typically found in earlier-stage startups.The role offers a rare combination of product engineering, distributed systems, API design, startup ownership, AI-enabled development, and meaningful societal impact.If you enjoy building products from scratch, owning systems end-to-end, working directly with customer problems, and operating in high-growth environments, this role offers exceptional scope and career upside.