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Senior Engineer - Full Stack at FundThrough. As a Senior Full Stack Engineer at FundThrough, you’ll be instrumental in building the platform that powers fast, flexible capital for small businesses. You will work across the stack (front-end, backend, data, and embedded integrations) to deliver intuitive, scalable, and automated solutions aligned with FundThrough’s vision of growing its position as a capital access platform. This is a hands-on role that requires deep technical excellence, product empathy, and a strong execution mindset. You’ll work closely with product, design, and cross-functional stakeholders to ship high-leverage features and systems in a fast-moving, high-trust environment.. What You’ll Do. Technical Execution & Architecture. . Build and own features across the stack (React/TypeScript, Node.js, Python, Postgres, AWS) with a focus on high availability, scalability, and performance.. . Contribute to automation-first development, from invoice verification to underwriting and cash application, with minimal human touch and high observability.. . Drive development of embedded experiences via Web Components and APIs used in partner platforms, enabling clients to access funding without leaving their workflow.. . Champion modular platform architecture and support multi-tenant, API-first, event-driven systems designed for scale and external partner adoption.. . Translate business and product strategy into clear technical scope and system design aligned with long-term automation and platform goals.. . Product & Collaboration. . Partner with product, risk, and operations to shape and execute high-leverage initiatives (e.g. funding automation, underwriting automation, embedded widgets).. . Help gain consensus, clarity and alignment on product designs by asking the right questions, exploring alternative solutions and exploring the art of the possible.. . Build systems that drive core KPIs such as funding turnaround time, cost-per-client, invoice throughput, and user engagement.. . Contribute to experimentation pipelines (e.g. Line of Credit product, 2nd lien, pricing experiments) and evaluate the impact of product bets through instrumentation and analytics.. . Take ownership of defining and validating “Definition of Done” not just as code delivery, but as actual business impact realization.. . Craft, Quality & Tooling. . Uphold high standards in code quality, maintainability, and test coverage across unit, integration, and E2E levels.. . Promote best practices in observability, CI/CD, and documentation.. . Contribute to building and improving internal tools that support onboarding, funding workflows, and document processing.. . . 5+ years of hands-on full stack experience in TypeScript, React, Node.js, and backend services in Python or similar.. . Demonstrated ability to build scalable services in cloud-native environments (preferably AWS).. . Strong understanding of API design and frontend-backend integration patterns (e.g., BFF).. . Experience working in high-trust, lean, cross-functional teams.. . Strong system design and data modeling skills.. . Familiarity with workflow automation, event-driven architecture, or financial platforms is a plus.. . Bonus: experience with embedded finance, invoicing/payment systems, identity verification, or underwriting logic.. . C1 English level required. . What Success Looks Like. . You are a key contributor to delivering product-led automation and platform initiatives that materially reduce servicing cost and improve capital deployment throughput.. . You demonstrate product curiosity and push for clarity on use cases, edge cases, and value realization.. . You act like an owner; deeply understand the systems you touch and proactively improve them.. . You influence architecture and team practices without needing formal leadership authority.. . You help gain consensus and clarity to the team by asking questions and exploring alternative solutions.. . You help FundThrough scale as a platform that connects businesses to capital through technology, not manual operations.. . Nice to Have (Not Required). . Experience with financial regulations, or secure data practices.. . Exposure to partner or marketplace ecosystems.. . Past work on automation agents, document processing, or fintech underwriting.. . Company Location: Guatemala.