MUSTAPHA ABDULKAREEM

Backend Developer

LinkedIn | GitHub

About

Highly skilled Backend Developer with over 3 years of experience in building scalable APIs, real-time systems, and cloud-native applications across Healthcare, HR, and EdTech domains. Expert in Node.js, Java, and microservices architectures, consistently delivering robust solutions that enhance system performance and user engagement. Proven ability to translate complex requirements into efficient, high-impact backend solutions.

Work Experience

Backend Developer (Node – Nest)

CreaCubed

Jul 2024 - Dec 2024

Remote, TR

As Backend Developer, engineered a HIPAA-compliant architecture for a diabetes-focused mobile application, enabling seamless integration with medical hardware and real-time health monitoring.

  • Architected and implemented a HIPAA-compliant backend for a diabetes-focused mobile application, ensuring seamless integration with medical hardware and real-time health monitoring.
  • Developed a secure in-app video call system, increasing patient-doctor consultation engagement by 40%.
  • Integrated real-time AI/ML-powered language translation, significantly enhancing accessibility for non-English speaking patients across diverse regions.

Software Developer (Java, Springboot, Angular)

Saritay Bilism

Jun 2022 - Dec 2024

Antalya, TR

As Software Developer, architected and deployed a secure HR platform and optimized E-Learning and hotel B2B marketplace systems, driving efficiency and user engagement.

  • Architected and deployed a secure, comprehensive HR platform, streamlining job posting, applicant tracking, and interview scheduling processes.
  • Automated applicant screening and grading processes, reducing manual review time by 70% through a robust Spring Boot microservice pipeline.
  • Redesigned the assessment flow for a multi-school E-Learning platform, boosting student participation by over 30%.
  • Optimized teacher onboarding workflows, decreasing process time by 50% and significantly increasing onboarding completion rates.
  • Led backend development for a Hotel B2B marketplace, enabling real-time listing and transaction capabilities for hotel inventories.
  • Developed lightweight, independent HR modules for hotels to efficiently manage job postings and applicant pipelines.

Backend Developer (Java, Springboot)

Zeedlabs System

Jan 2024 - Jun 2024

Lagos, NG

As Backend Developer, built and launched a real estate platform and developed a Forex exchange app, ensuring secure and high-performance backend systems.

  • Built and launched a comprehensive real estate platform (property listing, buying, selling) successfully deployed to the Google Play Store for use in Kwara State.
  • Developed a Forex exchange application with live rate integration and basic financial transaction features, collaborating with cross-functional engineering teams.
  • Engineered scalable, secure, and high-performance RESTful APIs using Java, Spring Boot, PostgreSQL, and MySQL.

Backend Developer (Javascript, Typescript, Node, Express)

TIIDELab

Jun 2022 - Dec 2022

Abuja, NG

As Backend Developer, contributed to a crowdfunding platform API and built features for a social media management SaaS, ensuring high test coverage.

  • Contributed to a RESTful API for a crowdfunding platform, efficiently processing user pledges and managing project lifecycles.
  • Built robust backend features for a social media management SaaS, consolidating multi-platform scheduling and analytics capabilities.
  • Wrote and maintained unit tests using Jest, achieving 85% test coverage across major backend modules.

Education

Civil Engineering

Federal University of Agriculture Abeokuta (FUNAAB)

4.51/5.0 or 90.2%

Sep 2018 - Aug 2023

Ogun, NG

Volunteer

Corps Member

National Youth Service Corps

Nov 2023 - Nov 2024

Lagos, NG

Fulfilled mandatory national youth service, applying backend development skills in a professional setting.

  • Contributed to backend development initiatives as part of national service, enhancing practical application of engineering principles.

Certificates

MongoDB Associate Developer

MongoDB

Jan 2024

Skills

Database Management & Caching

  • MySQL
  • PostgreSQL
  • MongoDB
  • Redis
  • Mongoose
  • Prisma

Version Control

  • Git
  • GitHub
  • GitLab
  • BitBucket

Architectural Patterns

  • Microservices
  • RESTful APIs
  • gRPC

Programming Languages

  • Node.js
  • JavaScript
  • TypeScript
  • Java

Backend Development Frameworks

  • Express.js
  • NestJS
  • Spring Boot

Cloud Platforms

  • AWS
  • Microsoft Azure

Methodologies

  • Agile
  • Scrum

Real-time Technologies

  • Websocket
  • Socket.IO
  • Mediasoup

Testing Frameworks

  • Jest

Frontend Technologies

  • Angular
  • Ionic
  • React