CustomGPT.ai · 4 hours ago
Director of API Growth (RAG API)
Needham, MA
Full-time
Onsite
Lead/Staff, Director/Executive
$175K/yr - $175K/yr
3+ years expCustomGPT.ai is a profitable, bootstrapped AI SaaS company that lets enterprises deploy custom AI agents on their own data, fast, secure, and with real ROI. The Director of API Growth will be responsible for building the growth engine for the RAG API, focusing on API adoption and driving measurable revenue growth through developer engagement and community building.
Artificial Intelligence (AI)ChatbotContent CreatorsMachine LearningSoftware
No H1B
Responsibilities
Build the API Adoption Engine (Activation + Retention)
Define the developer adoption funnel and instrument it end-to-end
Improve time-to-first-success and activation rates (first query, first 100 queries, production key)
Identify friction points and ship fixes (docs, SDKs, examples, error UX, onboarding)
Ship Developer Growth Assets (that compound)
Create or overhaul:
Quickstarts and “known-good” reference implementations
Integration recipes (LangChain/LlamaIndex/etc.), starter apps, and templates
Best-practice guides for evaluation, grounding, and production reliability
Run AI-Driven Lifecycle + Experimentation (PLG)
Build behavior-triggered onboarding and lifecycle journeys (activation → expansion → winback)
Run tight A/B experiments across docs, onboarding, messaging, and offers
Connect marketing activity to usage outcomes (queries, retention, expansion)
Own the Narrative: Proof, Rankings, and Leaderboards
Turn performance into belief:
Benchmark strategy + submissions + reproducible eval kits
“Why we win” pages, comparisons, and technical proof content
Case studies and technical deep-dives that developers actually trust
Build GTM Engineering Workflows (automation + signal → action)
Use product signals (usage, intent, drop-off) to trigger:
The right lifecycle messages
Sales/CS alerts
Outbound sequences and partner motions
Create dashboards that tie GTM actions → usage → MRR
Community + Ecosystem Loops
Launch a lightweight “API Champions” program (builders/educators/operators)
Run technical office hours, workshops, and partner co-marketing
Make the community a distribution engine for adoption and credibility
Diagnose + Instrument
Clear adoption funnel, baseline dashboards, and weekly operating cadence
Top 3 activation leaks identified with a prioritized fix plan
Quickstart / onboarding improvements shipped
Ship the Machine
Lifecycle journeys live (onboarding, activation nudges, production push)
Measurable lift in activation and/or time-to-first-success
First “proof assets” shipped (benchmark kit, reference app, comparison page)
Create Compounding Loops
Repeatable ranking/leaderboard motion operating monthly
Pipeline system live (usage signals → GTM workflows → qualified conversations)
API Champions/community motion launched
Visible growth in weekly queries and early impact on API MRR
Qualification
Required
3–8+ years in a high-ownership environment (devtools, APIs, PLG SaaS, growth engineering, DevRel, technical PMM, or similar)
You can translate technical depth into adoption (docs, examples, messaging, workflows)
Strong analytical instincts: you can define metrics, instrument funnels, and run experiments
Builder mindset: you can prototype automations and workflows (APIs, webhooks, basic scripting, SQL)
Founder mentality: scrappy, biased to action, thrives in ambiguity, ships without needing permission
Preferred
RAG/LLM experience (retrieval evals, grounding, indexing, latency, quality measurement)
Experience growing an API product with usage-based revenue
Prior dev community building (writing, speaking, OSS, meetups)
Benefits
Health insurance
PTO
A culture that values learning, ownership, and winning together
Company
CustomGPT.ai
CustomGPT provides chatGPT-style chatbots to enterprise businesses and individuals to create content with AI and ChatGPT and has RAG APIs.
11-50 employees
Funding
Current Stage
Early StageLeadership Team
Alden DoRosario
Chief Executive Officer
Company data provided by crunchbase