Role Description This role is US based remote and all candidates must be able to work in the US now and in the future without restriction. We’re focused on helping private equity investors and portfolio company leaders drive value creation through technology. In a world where investors deploy trillions annually into software and tech-enabled businesses, we're the team that makes sure the underlying technology actually delivers. This role is for engineers who are comfortable operating across the stack while bringing strong backend and systems design expertise. This role is part of our Services team, which builds the shared backend services and system foundations that power many of Crosslake’s tools and products. These systems are designed for reuse, scalability, and long-term maintainability. This role requires strong architectural thinking and hands-on execution, with a focus on building reliable, extensible services that support multiple use cases over time. - Design and build shared backend services and APIs used across multiple systems - Define service boundaries, contracts, and data models - Own the full SDLC: design, development, testing, deployment, and iteration - Contribute to domain modeling and system design decisions - Ensure services are scalable, reliable, and reusable - Improve system cohesion and reduce duplication across tools and products - Use AI tools to accelerate development while maintaining high code quality - Balance speed with long-term maintainability and extensibility Qualifications - 7+ years of software engineering experience - Strong backend expertise with the ability to operate across the full stack when needed - Experience designing service-oriented or distributed systems - Familiarity with domain-driven design (DDD) principles - Exceptional systems thinking and ability to model complex domains - Experience deploying and operating applications in cloud environments (AWS, Azure, or GCP) - Solid understanding of the full SDLC - Deep experience with AI coding tools Requirements - Hands-on experience using AI-assisted development tools beyond basic code generation - Ability to leverage AI across the workflow (e.g., prototyping, debugging, test generation, QA, code review, security analysis) - Ability to balance AI-assisted development with sound system design and long-term maintainability - Familiarity with modern AI-enabled development environments and practices Preferred Experience - Infrastructure as Code (e.g., Terraform) - CI/CD and modern DevOps practices - API design (REST, GraphQL, event-driven systems) - Messaging systems (e.g., Kafka, SQS), Event sourcing, CQRS patterns - Data modeling (SQL and NoSQL) - Observability practices (logging, metrics, tracing) - Experience with one or more of the following languages: Python, TypeScript, Golang, Rust - Basic understanding of data engineering principles What success looks like - You design services that are reused across multiple systems - You create clean abstractions that simplify downstream development - You balance speed with long-term maintainability - You improve system consistency and reduce fragmentation - You effectively use AI tools to increase speed without sacrificing quality

Role Description We're looking for a Senior Fullstack Developer with an AI-First mindset to build scalable, well-crafted applications across the full stack. You'll work closely with product and engineering teams, writing detailed specs before coding and leveraging agentic AI tools throughout the development lifecycle. Qualifications - Professional degree in Computer Science, Systems Engineering, or related field - 4+ years of experience in software development - 1+ year working with AI-First practices and agentic AI workflows - English: intermediate level desirable, not mandatory Requirements - Frontend: ReactJS, TypeScript, Apollo, Vite - API: GraphQL - Backend: Node.js, NestJS, PostgreSQL, DynamoDB - AWS (nice to have): SQS, Lambda, EventBridge, ECS - Methodology: Spec Driven Development, Agentic AI Benefits - 100% Remote Work - Mentorship from experienced product and banking professionals - Multicultural collaboration with teams in Colombia and the U.S. - Real exposure to the American financial market - Growth path into senior product or leadership roles as the product scales

• Own entire production software systems end-to-end, from understanding operational problems on the factory floor through designing, building, deploying, and operating the software that solves them. • Responsible for entire systems rather than isolated tickets, owning problems from discovery through deployment and operational impact. • Build and maintain the internal operational stack that seamlessly connects planning, materials, purchasing, personnel, and factory processes, transforming complex manufacturing workflows into highly reliable, usable software. • Partner closely with factory operators, engineers, and company leadership to ensure CircuitHub’s factories scale smoothly as demand and Grid capabilities grow. • Example projects include building production planning tools, designing inventory and materials-flow systems, improving factory operator workflows, integrating new automation equipment, applying AI to automate operational processes, and developing software that coordinates work across people, robots, and suppliers.

• Build and maintain RESTful API endpoints using Python and Flask, contributing to business logic for BOQ processing and user management • Assist in integrating third-party and AI-driven APIs, including working with the Anthropic Claude API that powers the platform’s computational pricing engine • Develop and maintain responsive user interfaces using React, ensuring a polished experience across devices • Contribute to document processing pipelines handling PDF, Excel, and Word files for BOQ uploads and report exports • Write clean queries and support schema work using SQLAlchemy and PostgreSQL under senior guidance • Write tested, well-documented code and participate in code reviews and sprint planning • Support CI/CD workflows, containerisation, and deployment tasks as you grow into the role