Response Monitor – email warmup & deliverability dashboard
A full-stack SaaS app for monitoring seed accounts, tuning sender domain behavior, and tracking inbox placement across providers. I designed and built the frontend dashboard, reporting views, and admin configuration screens, and integrated them with a Node/Express backend.
- Role
- Full-stack developer
- Stack
- React, TypeScript, Tailwind, React Query, Zustand, Node.js, Express, PostgreSQL, BullMQ, Redis
- Status
- Internal product · In active use
Light & dark modes
The dashboard supports both light and dark themes, with chart colors tuned for contrast in each mode. Users can toggle the theme from the header, and their preference is persisted.
Authentication & onboarding
The login and registration screens follow the same visual language as the main app. They highlight key benefits while keeping the form simple and focused.
- • Email/password auth with Zod + React Hook Form validation.
- • Secure session cookies with JWT-backed API access.
- • Automatic redirect if the user is already authenticated.
- • Role-based access: super admins vs. standard operators.
Core product screens
Seed accounts
Export active or retired seed inboxes by provider for use in other tools, audits, or inbox placement tests.
Sender domains & presets
Configure per-domain behavior for opens, clicks, scrolling, replies, and spam recovery, with quick active toggles.
Manage profiles
See all seed email accounts, their providers, login status, and last login/attempt. Supports bulk CSV upload.
Seed delivery reports
Daily delivery reports with chart and grid views, filterable by date range, sender domain, and domain groups.
Session configuration controls
Super admins can centrally tune warmup behavior via the session configuration screen. These settings drive how the backend workers behave during real warmup sessions.
- • Min, max, and average dwell time per session.
- • Option to randomize dwell time between min and max for realistic behavior.
- • Separate tabs for session rules, actions, and concurrency limits.
Tech stack & responsibilities
Stack
What I did
- • Designed the dashboard, reports, and admin UX to match a modern SaaS feel.
- • Implemented authentication, role-based access, and session handling on the frontend.
- • Built reporting APIs (day/hour/sender-domain) and wired them to charts and summary cards.
- • Helped shape the backend data model for inbox logs and aggregated delivery logs.
- • Set up Docker-based deployment (frontend, backend, Redis, Postgres) on a VPS with Nginx.
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