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Backend Developer2019
#Python#Django#Celery#PostgreSQL#SMTP#Email Templates

Viva64 Trial CRM — Email Marketing Automation

Trigger‑based email automation to convert PVS‑Studio trial users into paying customers. Trial CRM to manage the lifecycle of trial users.

Project Context

Viva64 (now “Program Verification Systems”) builds PVS‑Studio, a static analyzer. Like many B2B tools, it relies on “trial → paid” conversion, but conversion suffered without systematic communication during trials.

Goal

Build automated email flows to:

  • Improve trial → paid conversion
  • Engage users during the trial period
  • Collect feedback and identify blockers
  • Segment audiences by behavior and needs
  • Reduce sales team routine

Solution

Architecture

Trial CRM: users + event history, segmentation, statuses, and funnel. Email engine: triggers, templates, scheduled jobs, opens/clicks/conversions tracking.

Trigger Flows

Welcome (day 0); activation help (day 2–3); value and case studies (day 5–7); mid‑trial reminder and consultation offer (day 14); final push (day 25–28). Behavioral: active users → consult/upgrade; inactive → troubleshooting; churn risk → survey and win‑back.

Segmentation

By company size (indie/SMB/enterprise), tech stack (C/C++/C#/Java/mixed), and behavior (power/explorer/ghost).

Tech Stack

Django ORM models, admin to manage templates/users/campaigns, Celery tasks and beat for scheduling, SMTP providers (SendGrid/Mailgun), deliverability (SPF/DKIM/DMARC), adaptive HTML templates, A/B subject tests, tracking pixels.

Analytics

Open/CTR, conversion, time to conversion, unsubscribes; CRM integration for lead routing, scoring, notifications, and full communication history.

Takeaways

Treat trials as guided journeys. Triggers + segmentation + reliable delivery + sales integration = measurable impact on conversion.