Mark Spain Real Estate needed its sales, partner-offer and publishing systems to work together. Paulo Cardoso, through Upstart13, built the backend connections and supported the content and infrastructure migration.
The website, Salesforce and Homeward each held part of the property-sales workflow. An appointment created in one system needed to become the right offer request in another, with fields and state carried across the boundary.
Publishing was also moving from WordPress to Strapi. The project therefore combined business-process integration with content migration and the AWS network configuration required by the partner service.
Node.js services on AWS Lambda and API Gateway connected Salesforce, Homeward and the publishing stack. The work mapped the appointment-to-offer flow with the partner teams, so each service received the information it expected.
Content moved to Strapi v4 and media to Amazon S3. Staging simulated the production infrastructure before cutover. Private subnets, a NAT Gateway and an Elastic IP supplied the fixed outbound address required for partner allowlisting; CloudWatch and WAF supported the surrounding infrastructure.
Project materials showing the workflows and interfaces described in this case.
The delivery connected the sales workflow and the publishing migration through a defined backend. Partner networking requirements were handled alongside application behavior, making the integration deployable in its intended environment.
Taking over an integration means understanding both the API and the agreements around it. Field mappings, partner allowlists, deployment settings and migration steps are part of the operating record. Losing that context can break a business process even when the application code remains available.
Project contribution: Paulo Cardoso through Upstart13. The scope described above identifies the work behind this case.
Editorial review: Ego Eimi · Updated September 6, 2026 · About the team
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