Practical writing on building software products: payments, multi-tenancy, serverless AWS, data integrity and AI features.https://devceon.com/en-ushttps://devceon.com/blog/how-to-hire-a-software-development-agency/https://devceon.com/blog/how-to-hire-a-software-development-agency/What to ask before signing with a software agency, what a good proposal contains, and the red flags we see when founders come to us after a bad first attempt.Mon, 19 Oct 2026 00:00:00 GMTHiringMVPFoundersAgencieshttps://devceon.com/blog/serverless-vs-containers-startup-backend/https://devceon.com/blog/serverless-vs-containers-startup-backend/We run both: Lambda and DynamoDB for some clients, Rails and Django on containers for others. The questions that actually decide it, and the ones that don't.Sun, 18 Oct 2026 00:00:00 GMTAWSServerlessContainersArchitecturehttps://devceon.com/blog/mcp-server-for-your-saas-data/https://devceon.com/blog/mcp-server-for-your-saas-data/Designing the AI agent for a beauty booking marketplace: typed tools over the API, a role-derived tool list, and approval before every write.Fri, 16 Oct 2026 00:00:00 GMTMCPAI agentsPermissionsAPI designhttps://devceon.com/blog/stripe-connect-scheduled-payouts-timezones/https://devceon.com/blog/stripe-connect-scheduled-payouts-timezones/Hourly marketplace payouts sound simple until daylight-saving time shifts your cutoff by an hour. Scheduling payouts with IANA zones and making retries safe.Mon, 12 Oct 2026 00:00:00 GMTStripePaymentsAWS LambdaMarketplaceshttps://devceon.com/blog/fail-closed-exports-reconciliation/https://devceon.com/blog/fail-closed-exports-reconciliation/Audit exports that silently ship wrong totals are worse than none. The reconciliation pattern we use so an export fails loudly when the numbers disagree.Mon, 05 Oct 2026 00:00:00 GMTData integrityAWS LambdaDynamoDBArchitecturehttps://devceon.com/blog/multi-tenant-django-schema-per-tenant-postgis/https://devceon.com/blog/multi-tenant-django-schema-per-tenant-postgis/Why we chose schema-per-tenant isolation for a construction SaaS, how to keep JWTs tenant-aware, and the custom backend that makes PostGIS geofencing work.Mon, 14 Sep 2026 00:00:00 GMTDjangoMulti-tenancyPostgreSQLPostGISSaaS