Open to opportunities

Lexis Alexander

@lexisalexander

Message

I build scalable payment, marketplace, and SaaS platforms serving millions of users.

United States

Message

What I'm looking for

I'm looking to build high-impact, scalable products across payments, marketplaces, SaaS, developer tooling, or frontend infrastructure, where I can solve complex customer and business problems.

I've built and improved high-impact platforms at TaskRabbit, Rhino Labs, AAA Media, Ticketmaster, and Cyndx Network, serving millions of users and driving measurable business outcomes.

At TaskRabbit, I migrated transactional messaging to a modern platform sending 300K+ messages daily, resolved a nine-month production issue affecting 1.5M users, and built recommendation systems for Dolly that drove 11K+ monthly referrals.

At Rhino Labs, I built Pay Now to recover $1.5M+ in delinquent premiums, fixed a critical billing issue tied to $1M in lost lifetime premiums, and led migration planning for 1.5M customer accounts without major disruption.

I've also delivered growth, video, and marketplace systems: SEO work at Ticketmaster created $10M+ in annual global value, while video commerce and streaming architecture at AAA Media generated revenue and reduced playback costs by 75%. I contribute to open source through react-use-is-online and projects including FCM and Mastodon.

Experience

Work history, roles, and key accomplishments

Current

Open Source Maintainer/OSS Engineer

Current

Open Source

Oct 2025 - Present (10 months)

Maintainer of react-use-is-online, an open source React library for network connectivity detection. Contributed to FCM and Mastodon focusing on developer tooling and frontend infrastructure.

React Open Source Developer Tooling Frontend Infrastructure

Senior Software Engineer

TaskRabbit

Nov 2023 - Oct 2025 (1 year 11 months)

Migrated a legacy transactional messaging system to a modern platform sending 300K+ messages/day, improving reliability and scalability. Identified and resolved a 9-month production bug affecting all 1.5M users, restoring notification preference controls and reducing opt-out failures.

React Redux GraphQL Node Python AWS TypeScript Ruby Ruby on Rails Optimizely A B Testing System migration

Senior Software Engineer

Rhino Labs

Feb 2022 - Nov 2023 (1 year 9 months)

Built the 'Pay Now' feature enabling recovery of $1.5M+ in delinquent premiums. Reduced company deficit by $400K by shifting payment processing fees to renters and fixed a critical revenue bug causing $1M in lost lifetime premiums.

Next.js React Payment Processing System migration Billing

Senior Software Engineer

AAA Media

Nov 2019 - Oct 2021 (1 year 11 months)

Rebuilt core systems for a high-traffic NSFW platform serving 1.5M users and generating $35M+ in lifetime revenue. Designed and launched a one-time video purchase system, generating over $200K in revenue and reducing chargebacks by 20%.

Video Streaming S3 Payment Systems System Architecture

Software Engineer

Ticketmaster

Jun 2018 - Nov 2019 (1 year 5 months)

Contributed to onboarding and favoriting flows across web and mobile for 30M+ users. Led SEO engineering initiatives that increased annual global value by $10M+ and built a service to de-index 190K low-quality pages.

SEO Web Development Mobile Development Service Architecture

Software Engineer

Cyndx Network

Jan 2018 - Jun 2018 (5 months)

Developed Finder, a flagship product enabling M&A analysts to research 20M+ private companies globally. Designed and implemented system architecture using React, Rails, Neo4j, and GraphQL.

React Neo4j GraphQL System Architecture

Lead Frontend Engineer

Collab Studios

Mar 2016 - Jan 2018 (1 year 10 months)

Developed a clip aggregator product that reduced the price of clip licensing from $28 to $2. Reduced content claim processing time for internal teams and partners by building tools to track and manage licensed YouTube compilation content.

Frontend Development Product Development Content Management