Building Reliable Systems

Senior Software Engineer

Hi, I'm Obafemi

I turn ambiguous product goals into reliable software systems that teams can ship, scale, and maintain.

7+ years across SDKs, SaaS platforms, AI tools, cloud infrastructure, APIs, and product engineering, with a focus on architecture, delivery, and long-term system quality.

Download Resume

TypeScriptReactNext.jsNode.jsAWSPostgreSQLMongoDBOpenAISDKsArchitecturePerformanceDeveloper Experience

Building Reliable Systems

Senior Software Engineer

Hi, I'm Obafemi

I turn ambiguous product goals into reliable software systems that teams can ship, scale, and maintain.

7+ years across SDKs, SaaS platforms, AI tools, cloud infrastructure, APIs, and product engineering, with a focus on architecture, delivery, and long-term system quality.

Download Resume

TypeScriptReactNext.jsNode.jsAWSPostgreSQLMongoDBOpenAISDKsArchitecturePerformanceDeveloper Experience

Experience

A timeline of product engineering ownership, technical leadership, and systems work across SDKs, AI tooling, education, logistics, and consulting.

Nov 2024 to Present

Joyfill

Software Engineer

FL, USA

Contributing to SDK architecture, product workflows, and developer-facing tooling for complex form and document technology.

Improved SDK workflows by reducing integration friction and making core developer tasks easier to complete.
Diagnosed performance issues through profiling, reproduction, and careful validation of fixes.
Strengthened SDK internals with cleaner abstractions, safer patterns, and more maintainable implementation paths.
Translated product and engineering ambiguity into scoped, shippable work.

TypeScriptReactNode.jsAWSREST APIMongoDB

Oct 2021 to Nov 2024

Relentless Persistence Inc.

Lead Engineer

WA, USA

Led engineering for SprintZero through a fast-changing product phase, shaping architecture, execution plans, and delivery tradeoffs.

Owned technical direction across frontend, backend, cloud, and AI-assisted product workflows.
Broke unclear goals into milestones, prototypes, and smallest useful releases.
Created maintainable patterns and implementation boundaries so the product could evolve quickly without losing structure.

TypeScriptReactNext.jsNode.jsGoogle CloudFirebaseREST APIOpenAI

Mar 2020 to Dec 2020

NativShark

Fullstack Engineer

Fukuoka, Japan

Contributed to a language-learning platform with a focus on maintainability, performance, and developer velocity.

Simplified high-friction engineering areas and improved the team's ability to ship with confidence.
Balanced product timelines with architecture decisions that kept the platform easier to extend.

TypeScriptReactNext.jsNode.jsElixirAWSGraphQLREST

Sept 2018 to Feb 2020

Lopworks Limited

Software Developer

Nigeria

Built client applications and API integrations across frontend, backend, and delivery-focused consulting work.

Improved API communication and integration workflows using enterprise API tooling.
Led implementation planning, technical training, and delivery support for client-facing solutions.

JavaScriptReactVueNode.jsElixirRESTPHPLaravel

Jun 2017 to Apr 2018

Enovait

Web Developer

Lagos, Nigeria

Built early web and desktop software experiences focused on usability, reliability, and practical delivery.

Developed dynamic web applications and supported stable software setup for client environments.

JavaScriptPHPLaravelHTML/CSSjQuery

Engineering Philosophy

I care about software that makes future decisions easier: clear boundaries, understandable interfaces, observable behavior, and code that can be debugged under pressure.

Years Experience

Selected Works

Selected systems, tools, and product experiences that show how I build across platforms, workflows, AI, education, and developer infrastructure.

payments

KryptoPay

Developer-focused USDC payment SDK designed for direct merchant wallet settlement, clean integration paths, and practical Web3 payment flows.

Next.jsTypeScriptNode.jsAWSPostgreSQLWeb3SDK

View Project

forms

Joyfill

SDK and product workflow contributions for complex data collection, document technology, performance debugging, and developer tooling.

ReactTypeScriptSDKNode.jsAWSMongoDB

View Project

learning

NativShark

Language-learning platform work focused on scalable product experiences, maintainable architecture, and learner-facing performance.

Next.jsReactNode.jsElixirAWSGraphQL

View Project

Splendid Packaging

Logistics management application supporting operational workflows, product delivery, and internal business coordination.

ReactLogisticsProduct Engineering

Open

Covid Tracker

Data-tracking interface for exploring global COVID-related metrics through a clear frontend experience.

ReactAPIData Visualization

Open

Services

Focused engineering support for teams that need technical clarity, delivery momentum, and systems that can survive real product pressure.

Full-stack product builds

Turn unclear product ideas into scoped, working software across frontend, API, data, and deployment layers.

AI product integration

Design practical AI workflows that fit real product behavior, evaluation needs, and user-facing constraints.

SDK and developer platforms

Improve developer experience through clean APIs, stable abstractions, integration examples, and durable tooling.

Performance debugging

Profile regressions, reproduce edge cases, isolate bottlenecks, and validate fixes against real usage paths.

Architecture and delivery support

Translate ambiguity into technical plans, milestones, tradeoffs, and implementation paths that teams can execute.

Technical leadership

Support teams with architecture reviews, delivery planning, code quality standards, and hands-on implementation guidance.

How I Think About Systems

I work best where product uncertainty meets technical complexity. My process is to create structure, ship the smallest useful slice, observe real behavior, and strengthen the system through iteration.

Product to Platform Loop

From fuzzy goals to reliable execution.

Clarify

Scope

Prototype

Ship

Observe

Strengthen

System Areas

The layers I connect when turning ideas into working products.

Client Applications

API Layer

Data Layer

Cloud Infrastructure

AI Services

Developer Tooling

I use spec-driven thinking to turn vague goals into clear system contracts, then use AI-assisted engineering to move faster without skipping review, evaluation, debugging, or maintainability.

Available for focused engineering work

Have a serious product problem?

If you need someone who can bring structure to ambiguity, design reliable systems, and ship with craft, I am open to the right conversation.

Let's build something dependable.

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