Oba

Hi, my name is

Oba Seward-Evans

I build thoughtful interfaces for complex products

Frontend engineer with a strong product and design focus, experienced in owning and evolving complex, high-volume SaaS products.

Professional Experience

Software Engineer @ Cinder2023 - Present

I owned and led frontend development across Cinder’s core reviewer-facing surfaces, working closely with design and customers to shape how trust & safety teams review and investigate content at scale.

I led an in-place visual refresh using feature-flagged rollouts, helped unify fragmented review workflows into a cohesive experience, and built foundational UI systems that scaled as the company moved into enterprise.

ReactJSTypescriptJavascript

Software Engineer @ Doordash2021 - 2022

At DoorDash, I worked on high-traffic authentication flows used by millions of users daily. I took ownership of an under-maintained login and signup experience and reworked its frontend architecture to improve reliability, performance, and development velocity.

I partnered closely with product and experimentation teams to ship improvements that meaningfully impacted user conversion and business outcomes, while introducing better testing and deployment confidence to a critical surface.

ReactJSTypescriptJavascriptKotlin

Software Engineer II @ F5 / Shape Security2018 - 2021

At Shape Security, I built and maintained frontend features for a security dashboard used to configure and analyze protections against large-scale automated attacks.

The work involved visualizing complex traffic patterns, building secure administrative tooling, and supporting internal teams with automation and reporting infrastructure.

ReactReduxTypescriptJavascriptStorybookJavaGCP

Data Engineering Intern @ Optum2017 - 2017

Optum helps modernize the health system's infrastructure.

Transformed the existing Oracle SQL based ETL process to Spark on Hadoop to accelerate the process and scalability of electronic medical records
Reached 300% increase in time to create and complete an ETL spec

Scala

iOS Developer @ Step Champion2016 - 2016

Served as a front-end mobile iOS developer to build UI and connect it to back-end. Created new icon and color manager to handle diﬀerent themes.

ScalaSwift

Projects I've Worked On

Cinder Redesign - 2024

Led the frontend implementation of Cinder’s redesigned product experience, translating a new visual system into scalable, reusable components used across complex moderation workflows.

The work focused on clarity, consistency, and speed across high-volume review surfaces used daily by trust & safety teams.

ReactJSTypescript

Cartoon Glove Cursor - 2023

A playful custom macOS cursor inspired by classic cartoon glove hands. This project was primarily a graphic design and interaction exercise, focused on creating a cursor that feels expressive, readable, and fun to use throughout the day.

I designed and exported multiple cursor states and packaged them for use with Mousecape, exploring how small visual details can meaningfully affect everyday user experience.

MousecapeIllustrationmacOS

Obatola.com - 2023

A personal playground for exploring visual design, layout, and interaction. I use it to showcase selected work and to experiment with ideas outside of company constraints.

NextJSReactJSTypescript

Dice Roller - 2022

Website created to allow people to roll variable sets of die. It allows users to pick from a range of dice, customize color and save sets for use later. It was created using React and hosted on github using gh-pages

ReactJSTypescript

Other Projects

Global Todo - 2017

Small project I created to refresh node.js, express, and MongoDB skills. This is a global todo list where anybody can post an item.

JavascriptMongoDBjQueryHTMLCSSNodeJSExpressEJS

Venetian Bell Tower Data Collection App - 2016

Developed a data collection application for my Worcester Polytechnic Institute Venice Project team. This application was used by the WPI Venice Project Center to collect data of Venetian Bell Towers in Venice in the hopes of preserving records of these monuments.

AngularJSFirebaseJavascript

Venice Bell Tower Website - 2016

Revitalised a website that showcases venetian bell towers, using data collected by the Venice Project Center. The original website was functional but really lacks any eye catching design. With a little help of Bootstrap, I implemented a design that was integrated into the main site

AngularJSFirebaseJavascript

TapTapWars - 2016

A little game where 2 players tap as fast as they can on their half of the screen. The game is a tug of war where one players tap increments the score while the other decrements it. If the blue player reaches 10 before the red reaches -10 he wins.

SwiftXCode

iPhone Calculator - 2016

Moving forward from the Java Calculator, I created a similar calculator for iOS using Swift.

SwiftXCode

Java Calculator - 2016

Created a calculator with Java. In order to use the application, download the runnable jar or mac app below.

Java

KabaSuji - 2016

My four partners and I used Java to create a shape puzzle game similar to Tangrams. Click the button below to see the progress!.

Java

Deuces Solitaire - 2016

Solitaire variation I created using Java.

Java

Sci-Fi SpaceOctopi - 2015

Sci-Fi SpaceOctopi is a small playable visual novel, written in Python. I wrote the majority of the code and created all of the character art and the logo.

Java

Distance Vector Routing Protocol - 2015

I implement a distributed asynchronous distance vector (DV) routing protocol. I wrote the sending and receiving IP-level messages for routing data over a network.