Arno – GCP, AWS, Ionic

A company that provides meter calibration and service for petroleum and fuel-dispensing equipment, offering appointment-based services and an online shop.

• Developed full-stack functionality for a work planning app used by both management and employees.
• Set up the mobile and desktop app covering planning, fulfillment, communication, and compliance.
• Implemented offline support so the app stays usable without a connection.
• Built automatic synchronization of data once the connection is restored.

SaaS platform primarily for the Ecuadorean SMB market with a heavy focus on simplicity and speed. Optional inventory and accounting modules to cater to sole proprietors and up to mid size SMBs.

• Built a PWA invoicing SaaS platform that communicates with the Ecuador tax authority (SRI) using digitally signed payloads.
• Integrated POS, payment, inventory and accounting systems.
• Implemented customer identity verification.
• Connected to external systems via Pub/Sub or REST.
• Designed the UX around simplicity and speed, with advanced options and settings tucked away for ease of use.

Platform for digitalizing and managing electric schedules documentation facilitating the transition to digital storage and enabling cost savings for end customers and improving revenue per user.

• Built a cross-platform app and the supporting cloud environment, including document parsing and business logic.
• Set up databases and backend services that scale well.
• Enabled collaboration between competitors in a highly regulated industrial field.

A platform that simplifies the management of tools and other shared equipment, offering real-time tracking, easy reservations, and seamless sharing across teams, all in one place.

• Developed a B2B app for web, Android, and iOS from a single codebase.
• Built a Cloud Functions backend and a PWA admin panel.
• Implemented internationalization for 7 languages.
• Implemented notifications and emails.

A business-education and community platform that helps everyday people, second-act entrepreneurs, and lifelong learners turn their knowledge, experience, and passions into a business, through programs and a supportive community.

• Guided a team of 10 in modernizing multi-stack, multi-cloud back-end systems.
• Developed platforms for 300,000+ customers, including employee and admin systems.
• Built integrations, monitoring, and alerting solutions.
• Built AI tools, including a RAG chatbot.
• Built custom SSO servers.
• Managed integrations with Circle, Hubspot, and Stripe.
• Managed DNS, CDNs, and dynamic email templating.
• Migrated user and company data from AWS-backed systems to GCP-backed systems.
• Created and maintained user-facing projects for onboarding, learning, payments, and user content creation.
• Managed Google IAM permissions, service accounts, logging, and dashboards.
• Tuned scaling parameters for cost and performance.
• Created and maintained internal payment management and advanced scheduling systems.
• Synchronized customer data from several Stripe accounts.
• Built custom Hubspot CRM cards for Sales and Customer Success.
• Refactored and extended a custom affiliate portal for tracking, reporting, referrers, and earnings reports.
• Performed operational remediation before, during, and after high-load product launches.