A map of Olatunbosun Olaosebikan’s engineering work

Senior Software Engineer. MVP Award

• Card issuing
• 3D Secure
• Monitoring
• Clearing
• Disputes
• Interfaces

Frontend Engineer

Open-source intern at Public Lab

Software Engineer

A smart-infrastructure and financing platform for Nigeria and Ghana

A cleaning marketplace in Canada, with two production mobile apps

• The apps
• Booking
• Real time
• Payments
• Operations

An AI course tutor that runs inside Canvas

Node.js, NestJS, PostgreSQL, Prisma, Redis, REST APIs

• Node.js
• NestJS
• PostgreSQL
• Prisma
• Redis
• REST APIs
• Drizzle
• Soketi
• RAG
• LTI
• AES-256-GCM

TypeScript, React, Next.js, React Native, Laravel

• TypeScript
• React
• Next.js
• React Native
• Laravel
• JavaScript
• Leaflet
• Internet Archive API

EMV and TLV, HSM integration, 3D Secure, card clearing formats, dispute APIs

• EMV and TLV
• HSM integration
• 3D Secure
• Card clearing formats
• Dispute APIs
• Stripe

Docker, GitHub Actions, AWS, DigitalOcean, Cloudflare

• Docker
• GitHub Actions
• AWS
• DigitalOcean
• Cloudflare

Themes that keep coming up across the work.

• Consistency under load

  Transactions, locking and safe retries, for systems where a record written twice is a real problem.

  Shows up in: Moniepoint Group , Disputes

• Security and data protection

  Keeping card keys, cardholders and personal identifiers safe.

  Shows up in: Card issuing , 3D Secure , Tokenization middleware

• Third-party integrations

  Building against systems I do not control: card schemes, payment providers and platform APIs.

  Shows up in: Monitoring , Disputes , Payments , Coursemate , Outreachy

• Byte-level data formats

  Generating and converting encoded formats, where one wrong byte breaks the output.

  Shows up in: Card issuing , Clearing

• Real-time updates

  Getting changes to the people waiting on them as they happen.

  Shows up in: Real time

• Maps and location

  Location-aware features and interactive maps.

  Shows up in: Booking , Outreachy , Freelance

• Delivery and operations

  Getting software into production and keeping it running there.

  Shows up in: Avela , Operations , The apps

• Tools for operations teams

  Interfaces that show the people running a system where things stand.

  Shows up in: Interfaces , Operations

• Debugging

  Tracing a failure back to its cause, however small.

  Shows up in: Card issuing , Real time

• Applied AI

  Putting AI to work inside products people already use.

  Shows up in: Coursemate , UNICCON Group

Getting the architecture right.

Applied in: Avela , Tokenization middleware

Anticipating failures, and building systems that are reliable, maintainable and easy to evolve.

Applied in: Moniepoint Group , Disputes , Interfaces , Outreachy

Good engineering, to me, isn’t about complexity. It’s about making the right trade-offs.

Applied in: Tokenization middleware , Coursemate

I look beyond technical feasibility to understand business priorities, costs, risks and the value a solution actually delivers.

Applied in: Disputes , Tokenization middleware

Software Engineering, Miva Open University

• Tokenization middleware

  Master’s project

FinTech and Blockchain, Nexford University

University of Ilorin

Intreensic

Moniepoint

I started on the frontend and moved into backend and payments.

hello@malikk.dev

Away from work, it’s mostly music, anime and games.