Case Study
Dev&Mark
AI-Powered Marketing Intelligence
How Devinity's engineers architected and built a marketing analytics and automation SaaS platform — empowering 200+ agencies with AI-driven campaign management, predictive budget optimization, and GPT-5 content generation.
Staff Augmentation
Engineers embedded, platform delivered
Dev&Mark came to Devinity with an ambitious vision: build a marketing analytics and automation SaaS platform that could compete with established players like HubSpot and Sprout Social — but with AI-native intelligence baked into every feature from day one. They had the domain expertise and market access. They needed the engineering firepower.
Devinity provided senior full-stack engineers on a long-term staff augmentation engagement. Our team embedded directly with Dev&Mark's product leadership, owning the architecture decisions, data pipeline design, AI integration layer, and the entire customer-facing application — from the first commit to production launch and beyond.
The result is a platform that aggregates campaign data from every major advertising network, generates AI-powered insights and content, and automates the reporting workflows that previously consumed hours of agency time every week.
Project Overview
The Challenge
Agencies drowning in fragmented data
Marketing agencies juggle dozens of clients, hundreds of campaigns, and data scattered across Google Ads, Facebook, Instagram, LinkedIn, TikTok, email platforms, and CRMs. Every Monday morning starts with the same ritual: logging into ten different dashboards, exporting CSVs, copying numbers into spreadsheets, and manually assembling client reports that are already outdated by the time they are sent.
Content creation is another bottleneck. Writing ad copy, social posts, and email sequences for multiple clients across multiple channels takes hours — and most agencies lack the bandwidth to systematically A/B test variations at scale. Budget allocation decisions are made on gut instinct rather than predictive analytics, leaving significant ROI on the table.
Dev&Mark needed a unified SaaS platform that would aggregate data from every major advertising and marketing platform, layer AI-powered insights on top, generate content and reports automatically, and do it all within a secure multi-tenant architecture that keeps every agency's client data completely isolated.
Platform Capabilities
What we built
AI Campaign Analytics
A unified dashboard that aggregates real-time performance data from Google Ads, Meta, LinkedIn, and TikTok into a single pane of glass. AI models surface anomalies, identify top-performing creatives, and generate plain-English performance insights — so agency managers spend less time pulling reports and more time optimizing campaigns.
GPT-5 Content Generation
AI-powered content engine that produces ad copy, social media posts, email campaigns, and A/B test variations on demand. Marketers define brand voice, target audience, and campaign objectives — and the system generates dozens of variations ranked by predicted engagement, ready for review and deployment across channels.
Predictive Budget Optimization
Machine learning models trained on historical spend and conversion data recommend how to allocate budget across channels, campaigns, and audiences for maximum ROI. The optimizer runs continuously, shifting spend toward high-performing segments and pulling back from underperformers before they drain the budget.
Automated Reporting
Claude-powered white-label client reports generated weekly or on demand. Each report includes natural language performance summaries, visual breakdowns of spend vs. revenue, and actionable recommendations — branded with the agency's logo and ready to send to clients without manual formatting or data wrangling.
Multi-Tenant Architecture
Secure agency-and-client hierarchy with role-based access control and complete data isolation between tenants. Agency owners manage multiple client accounts from a single dashboard, while client-level users see only their own campaigns — with audit logs tracking every action for compliance and transparency.
Integration Hub
API connections to 30+ marketing platforms, CRMs, and analytics tools via n8n workflows and custom-built connectors. From Google Analytics and HubSpot to Shopify and Salesforce, the integration hub pulls data into Dev&Mark's unified schema — keeping every metric current and every workflow automated.
Technology
The stack behind Dev&Mark
Results
Measurable impact
200+
Agency Clients
Marketing agencies actively managing campaigns on the platform
45%
Better Campaign ROI
Average improvement in return on ad spend through AI-driven optimization
10hr/wk
Saved Per Agency
Weekly time savings from automated reporting and AI-generated content
$2M+
Ad Spend Managed Monthly
Total monthly advertising budget flowing through the platform
Our Role
Embedded engineers, full ownership
Devinity provided senior Next.js and Python engineers on a long-term engagement to architect and build the Dev&Mark SaaS platform. Our team owned the data pipeline architecture, AI integration layer, multi-tenant infrastructure, and customer-facing analytics dashboard. From designing the BigQuery data warehouse schema to implementing real-time Pub/Sub event streaming, from building the GPT-5 content generation engine to deploying the entire platform on GCP Cloud Run with Kubernetes orchestration — Devinity engineers were responsible for every technical decision and every line of production code.
Work With Us
Building a SaaS platform?
Whether you need engineers to build your product from scratch, scale an existing platform, or integrate AI into your SaaS — Devinity provides the senior talent to make it happen.
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