Tobiloba Odejinmi

Senior AI Systems & Full-Stack Engineer • Building scalable APIs, data platforms & intelligent systems • LLM, RAG & Agent Architect • 2× Founder & CTO

[Tobiloba Odejinmi @tobidcoder]

📖 30 Lessons from 30 Years is now available for pre-order.

A reflection on growth, leadership, failure, and purpose from three decades of life.

Pre-order:
https://t.co/1U1iUaQlkP

[Tobiloba Odejinmi @tobidcoder]

Turning 30 today. Grateful for every lesson, challenge, and opportunity along the journey.

Excited to unveil:

📖 30 Lessons from 30 Years
🎙️ Ideas & Insights
🌐 Personal Website
🚀 30–40 Vision
30 Years of Learning. The next decade of building starts now.

[Tobiloba Odejinmi @tobidcoder]

11 years. 2 exits. 1 truth: 🏛️

Stacks die, but pillars remain:

Integrity (Handle the edge cases)

Clarity (Junior-friendly PRs)

Resilience (Handle the failures)

Architecture is a marathon. Let's build for the long game. 🚀

[Tobiloba Odejinmi @tobidcoder]

The 2026 "Winner's Stack" for SaaS: 💻

Runtime: Node.js / Bun

Safety: tRPC + Zod

Data: Postgres (Vector) + Redis

Scale: BullMQ (Queue everything)

The stack doesn't make you, but it makes you unstoppable. ⚡️

[Tobiloba Odejinmi @tobidcoder]

2 exits changed how I write code. 🏛️

The "Founder-Engineer" mindset:

Critical Path only (No bloat)

Maintenance = Liability (Use "Boring" stacks)

Speed to Value (Ship & Validate)

Don't just solve tickets. Protect the asset. 🚀

[Tobiloba Odejinmi @tobidcoder]

Most AI startups fail on unit economics. 📉

Scaling AI requires "Token Intelligence":

Model Routing (Cheap for simple, Pro for complex)

Prompt Caching (Don't re-run intent)

Local Embeddings (Edge > API)

Efficiency is a moat.

[Tobiloba Odejinmi @tobidcoder]

Location is a legacy constraint. Talent is global. 🌍

Leading remote teams at 10mg Health (UTC+1) requires Asynchronous Excellence:

Document-first (If it’s not written, it’s not real)

Loom > Meetings

Outcomes > Hours

The cloud is the new HQ.

[Tobiloba Odejinmi @tobidcoder]

How do you approve insurance in milliseconds? 🛡️

At Insurpass, we built deterministic risk engines:

Tiered Rules (Logic > Guessing)

Real-time data hooks (KYC/Fin)

Immutable Audit Trails (State snapshots)

Accuracy > Speed.

[Tobiloba Odejinmi @tobidcoder]

In Fintech, your API is the product. 💳

At Zeeh Africa, we boosted API adoption by 470% by focusing on:

The 5-Minute Rule (Time-to-first-call)

TypeScript SDKs (Intellisense > Docs)

Built-in Idempotency

Growth is an engineering job.

[Tobiloba Odejinmi @tobidcoder]

257 freelance projects taught me more than any textbook. 🎓

Lessons from the trenches:

Users care about problems, not stacks.

MVP = Minimum, not Messy.

Use a "Boring" stack (Next.js) to ship faster.

I build to finish. 🚀

[Tobiloba Odejinmi @tobidcoder]

60% performance gains aren't about hardware; they’re about fixing "Silent Killers." 🏎️

Kill N+1 queries.

Use Redis for expensive calculations.

Optimise Next.js bundles for mobile users.

Stop driving with the handbrake on. ⚡️

[Tobiloba Odejinmi @tobidcoder]

Webhooks are the silent backbone of SaaS. 🔗

Scaling integrations (Stripe/Zeeh) requires an Event-Driven mindset:

Listener: Validates & Queues ONLY.

Worker: Handles logic via BullMQ/Redis.

Retries: Exponential backoff for 3rd party lag.

[Tobiloba Odejinmi @tobidcoder]

Your Database Schema is the Source of Truth, not the UI. 🗄️

My rules for production-grade PostgreSQL/Prisma:

Index every WHERE/JOIN clause.

Atomic migrations only. No manual DB edits.

Use Archive strategies > Soft Deletes.

Clean data = Clean code.

[Tobiloba Odejinmi @tobidcoder]

In 2026, TypeScript isn't a choice; it’s a requirement. 💻

But true TS mastery isn't just about variables. It’s about:

Type safety at the boundaries (Zod/tRPC)

Discriminated Unions > Optional fields

Zero any policy

Velocity requires types.

[Tobiloba Odejinmi @tobidcoder]

AI is a feature, not a business model. 🧠

As a YC Startup School & Techstars Alum, I ask:

Is this an LLM problem or a RegEx problem?

What are the Unit Economics (Cost-per-token)?

Are we building a moat or a wrapper?

Don't let the hype outpace the ROI.

[Tobiloba Odejinmi @tobidcoder]

RAG is easy to demo, hard to scale. 📚

For 10k+ docs at 10mg Health, "close enough" isn't an option.

Semantic Chunking (Meaning > Length)

Hybrid Search (Vector + Keyword)

Re-ranking (Context precision)

Precision is the goal.

[Tobiloba Odejinmi @tobidcoder]

SaaS is moving from "AI-Enabled" to "Agent-Driven." 🤖

A chatbot talks; an Agent executes. My stack for <5% failure:

Planner Agent (Steps)

Tool Use (Real APIs: Stripe/Zeeh)

Critic Loop (Self-correction)

The Agent is the new UI.

[Tobiloba Odejinmi @tobidcoder]

If your AI features run on the main request cycle, you can't scale. 📉

LLMs are slow; your API shouldn't be. My blueprint:

User hits endpoint -> BullMQ Job

Background worker handles LLM/Vector logic

Webhook updates UI

Build for resilience.

[Tobiloba Odejinmi @tobidcoder]

Stop treating LLMs like a "Black Box." 🤖

In production, hope isn't a strategy. My reliability stack:

Force JSON with Zod/Instructor

LLM-as-a-Judge for audits

Version prompts like code

AI is 10% prompting, 90% engineering. 🛠️

[Tobiloba Odejinmi @tobidcoder]

I’ve navigated 2 startup exits. An acquirer doesn't just buy your users. They buy your Technical Maturity. 🏛️

Due diligence looks for:

48hr dev onboarding

Security by Design

Observability

Is your code an asset or a liability?