Project: Interpersonal.dev Industry: Professional Development / EdTech Platform: Web (Astro 5) Target Audience: Technical professionals hitting the communication ceiling Key Offering: Free 14-day email challenge
Overview
Interpersonal.dev is a communication skills platform for technical professionals who’ve hit the career ceiling that isn’t technical — it’s interpersonal. Built around a free 14-day email challenge that delivers one concept, one real-world rep, and one reflection per day. 10 minutes a day.
The Challenge
Technical professionals face a specific career plateau:
- Passed over for promotion — Delivered the hardest projects, but the promotion went to someone who “communicates better”
- Got the title, can’t lead the room — 90% of the job is now communication, and no one taught you this
- Interview signal shift — At the senior level, 60% of interview signal comes from how you communicate your approach, not whether you solve it
- No practical training — Corporate workshops teach theory. Nothing teaches the actual reps.
The Solution
14-Day Email Challenge
Progressive difficulty from low-stakes to career-changing conversations:
Structure:
- Each email under 500 words
- One concept backed by research
- One real-world challenge (process goal, not outcome goal)
- One reflection prompt
- Day 1: “Respond to ‘How are you?’ with something specific”
- Day 14: Conversations you’d normally avoid
Lead Magnet: 50 Questions That Work
PDF with conversation starters organized by depth — from openers to perspective-shifting questions. Each with a “why it works” note and workplace context.
Blog Content Engine
AI-generated blog posts on communication topics, optimized for SEO around “communication skills for engineers,” “soft skills for developers,” and related long-tail keywords.
Technology Stack
Frontend:
- Astro 5 with TypeScript
- Dark theme with cyan/orange accents
- Responsive design optimized for professional audience
- AI-generated hero imagery
Email Integration:
- Kit (formerly ConvertKit) API
- Automated 14-day drip sequence
- Honeypot spam prevention
- Double opt-in with instant confirmation
Analytics:
- PostHog for conversion tracking
- Email open/click tracking via Kit
- Blog engagement metrics
Infrastructure:
- Vercel Edge Network
- Cloudflare DNS
- Custom domain (interpersonal.dev)
Results
Platform Established
- Professional landing page with clear value proposition
- Email automation delivering 14-day sequence without manual intervention
- Blog content targeting communication skills for technical professionals
- Lead magnet (PDF) driving email signups
Design Quality
- Dark theme matching target audience expectations (developers/engineers)
- Strong copywriting — “Your career ceiling isn’t technical. It’s interpersonal.”
- Trust signals — Founder credentials (30+ years tech, CISSP)
- Low-friction signup — Email only, no account creation
Technical Implementation
- Fast loading — Astro 5 static generation
- Privacy-first — PostHog analytics with reverse proxy
- Spam prevention — Honeypot fields, no CAPTCHA friction
- SEO optimized — Blog targeting long-tail keywords
Key Features
Email Course
- 14-day progressive challenge
- Process goals (you control the input, not the outcome)
- Research-backed frameworks
- Reflection prompts for compounding growth
Content Platform
- Blog with AI-generated articles
- SEO targeting communication skills niche
- Founder story building authenticity
Lead Generation
- Email signup with lead magnet
- Kit automation for nurture sequence
- Conversion tracking with PostHog
Founder Story
Built from personal experience: 30 years in tech, can demo any product and present to executives. But networking events, cold introductions, the unscripted moments? That’s where the struggle was. This challenge is what the founder wished someone had given him 20 years ago.
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