Johnson I. Okorie

Available to hire

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more

Language

English
Fluent

Work Experience

Full-Stack Engineer at Xprizo Ltd
September 1, 2024 - Present
Architected and delivered full-stack solutions using Angular (frontend), Flutter/Dart (mobile), and .NET 8 (backend), enabling high-performance, scalable applications for international markets. Integrated multiple third-party payment gateways and merchant systems, enabling seamless financial services delivery across Africa, Asia, and UAE regions. Implemented secure payment processing workflows ensuring PCI-DSS compliance and data protection standards. Collaborated with cross-functional teams to define technical requirements and deliver solutions aligned with business objectives.
Full-Stack Developer at Xprizo Ltd
September 1, 2024 - Present
Architected and implemented full-stack solutions using Angular for frontend, Flutter for mobile, and .NET 8 for backend services, delivering high-performance, scalable applications across industries. Implemented third-party integrations with various vendors, merchants, and providers’ payment gateways to offer financial services to customers across Africa, Asia and the UAE.
Software Architect / Full-Stack Developer at Xprizo Ltd
September 1, 2024 - Present
Architected and implemented full-stack solutions using Angular for frontend, Flutter for mobile, and .NET 8 for backend services, delivering high-performance, scalable applications across various industries. Implemented third-party integrations with different vendors, merchants, and payment gateways to provide financial services to customers across Africa, Asia and UAE.
Software Engineer at Xprizo Ltd
September 1, 2024 - Present
Architected and implemented full-stack solutions using Angular for frontend, Flutter for mobile, and .NET 8 for backend services, delivering high-performance, scalable applications across various industries. Implemented third-party integrations with vendors, merchants and providers' payment gateways to provide financial services to customers across Africa, Asia and UAE.
Software Architect / Full-Stack Developer at Xprizo Ltd
September 1, 2024 - Present
Architected and implemented full-stack solutions using Angular for frontend, .NET 8 for backend, and Flutter for mobile, delivering high-performance, scalable applications across various industries. Implemented third-party integrations with vendors, merchants, and payment gateways to provide financial services to customers across Africa, Asia, and the UAE.
Full-Stack Engineer at Incredible-Web
August 31, 2024 - October 15, 2025
Developed enterprise-level full-stack applications using Next.js (frontend) and .NET 8 (backend). Engineered API integrations via Next.js API routes with .NET endpoints, reducing response times by 25%. Implemented SSR and SSG strategies to enhance performance and SEO. Designed and maintained RESTful APIs following best practices and OpenAPI specifications.
Full-Stack Architect / Software Engineer at Incredible-Web
August 1, 2024 - October 11, 2025
Architected and implemented full-stack solutions using Next.js for frontend and .NET 8 for backend services, delivering high-performance, scalable applications across various industries. Utilized Next.js API routes in conjunction with .NET 8 endpoints to create seamless full-stack integrations and optimize data flow.
Full-Stack Developer at Incredible-Web
August 1, 2024 - October 11, 2025
Architected and implemented full-stack solutions using Next.js for frontend and .NET 8 for backend services, delivering high-performance, scalable applications across various industries. Utilized Next.js API routes in conjunction with .NET 8 endpoints to create seamless full-stack integrations and optimize data flow.
Software Engineer at Incredible-Web
August 1, 2024 - October 11, 2025
Architected and implemented full-stack solutions using NextJs for frontend and .NET 8 for backend services, delivering high-performance, scalable applications across various industries. Utilized Next.js API routes in conjunction with .NET 8 endpoints to create seamless full-stack integrations and optimize data flow.
Full-Stack Developer at Incredible-Web
August 1, 2024 - October 11, 2025
Architected and implemented full-stack solutions using NextJs for frontend and .NET 8 for backend. Leveraged NextJs API routes with .NET 8 endpoints to create seamless full-stack integrations and optimized data flow.
Full-Stack Engineer at LevelTen Energy
November 30, 2023 - October 15, 2025
Collaborated within a 5-developer team to build high-performance web applications for the renewable energy marketplace, achieving a 30% improvement in data processing speed. Leveraged Next.js server-side rendering capabilities to optimize initial page load times by 40% and improve SEO performance for the MarketPlace Portal. Implemented real-time data visualization features for energy trading analytics, enhancing user engagement by 35%. Participated in code reviews and pair programming sessions, maintaining high code quality standards and knowledge sharing across the team. Utilized modern state management solutions and optimized React component rendering to handle large datasets efficiently.
Software Engineer at LevelTen Energy
November 1, 2023 - October 11, 2025
Collaborated on Next.js development in a team of 5 developers, creating high-performance web applications for the renewable energy market, resulting in a 30% improvement in data processing speed and enhanced user engagement. Leveraged Next.js SSR features to optimize initial page load times and improve SEO for the LevelTen Energy Marketplace Portal.
Full-Stack Developer at LevelTen Energy
November 1, 2023 - October 11, 2025
Collaborated on Next.js development in a team of 5 developers, creating high-performance web applications for the renewable energy market, resulting in a 30% improvement in data processing speed and enhanced user engagement. Leveraged Next.js server-side rendering capabilities to optimize initial page load times and improve SEO for the Level Ten Energy MarketPlace Portal.
Senior Software Engineer at LevelTen Energy
November 1, 2023 - October 11, 2025
Collaborated on Next.js development in a team of 5 developers, creating high-performance web applications for the renewable energy market, resulting in a 30% improvement in data processing speed and enhanced user engagement. Leveraged Next.js server-side rendering capabilities to optimize initial page load times and improve SEO for the LevelTen Energy MarketPlace Portal.
Software Engineer at Level Ten Energy
November 1, 2023 - October 11, 2025
Collaborated on Next.js development in a team of 5 developers, creating high-performance web applications for the renewable energy market, achieving a 30% improvement in data processing speed and enhanced user engagement. Leveraged Next.js SSR to optimize initial page load times and SEO for the Level Ten Energy Marketplace Portal.
Full-Stack Engineer at Inlaks Computers
October 31, 2021 - October 15, 2025
Architected and implemented scalable microservices architecture using .NET Core 3.1, improving system performance by 30% for enterprise applications serving multiple African central banks. Designed and optimized RESTful APIs and database schemas using Entity Framework Core, enhancing data processing efficiency and reducing query response times by 40%. Implemented secure authentication and authorization protocols (OAuth 2.0, JWT), ensuring compliance with financial industry standards and regulations. Developed automated testing suites achieving 85% code coverage, significantly reducing production incidents. Collaborated with DevOps teams to containerize applications using Docker, streamlining deployment processes.
Software Engineer at Laks Computers
October 1, 2021 - October 11, 2025
Architected and implemented scalable microservices using .NET Core 3.1, improving enterprise-level applications serving multiple African central banks. Designed RESTful APIs and database schemas using Entity Framework Core, enhancing data processing efficiency and system reliability. Implemented secure authentication and authorization protocols, ensuring data integrity and compliance with financial industry standards.
Backend Developer at Lakes Computers
October 1, 2021 - October 11, 2025
Architected and implemented scalable microservices using .NET Core 3.1, improving system performance by 30% for enterprise-level applications serving multiple African central banks. Designed and optimized RESTful APIs and database schemas using Entity Framework Core, enhancing data processing efficiency and reliability.
Software Engineer at Lagos Computers
October 1, 2021 - October 11, 2025
Architected and implemented scalable microservices using .NET Core 3.1, improving system performance by 30% for enterprise-level applications serving multiple Nigerian financial partners. Designed and optimized RESTful APIs and database schemas using Entity Framework Core, enhancing data processing efficiency and reliability. Implemented secure authentication and authorization protocols to ensure data integrity and compliance.
Software Engineer at Xische & Co
October 1, 2021 - October 11, 2025
Architected and implemented scalable microservices using .NET Core 3.1, improving enterprise-level applications serving multiple African central banks. Designed and optimized RESTful APIs and database schemas using Entity Framework Core, enhancing data processing efficiency and system reliability. Implemented secure authentication and authorization protocols, ensuring data integrity and compliance with financial industry standards.
Full-Stack Engineer at Xische & Co
January 31, 2020 - October 15, 2025
Developed a comprehensive API service aggregation portal for Abu Dhabi government ministries using React and .NET, improving interoperability between 12+ government systems. Implemented efficient state management using React Hooks, Context API, and Redux-Saga, while optimizing backend performance with .NET Core microservices architecture. Led migration of legacy systems to modern React and .NET Core architectures, reducing maintenance costs and improving application performance. Established coding standards and documentation practices adopted by the extended development team.
Senior Software Engineer at Xische & Co
January 1, 2020 - October 11, 2025
Developed a full-stack API service aggregation portal for Abu Dhabi government ministries, utilizing React for the frontend and .NET for the backend, resulting in improved interoperability between government systems. Implemented efficient state management and asynchronous operations using React hooks, Context API, and Redux-Saga on the frontend, while optimizing backend performance with .NET Core microservices. Led the migration of legacy systems to modern React and .NET Core architectures, significantly enhancing overall application performance, maintainability, and scalability.
Full-Stack Developer at Xische & Co
January 1, 2020 - October 11, 2025
Developed a full-stack API service aggregation portal for Abu Dhabi government ministries, utilizing React for the frontend and .NET for the backend, resulting in improved interoperability between government systems. Implemented efficient state management and asynchronous operations using React hooks, Context API, and Redux-Saga on the frontend, while optimizing backend performance with .NET Core microservices.
Software Engineer at Xische & Co, Abu Dhabi UAE (Remote)
January 1, 2020 - October 11, 2025
Developed a full-stack API service aggregation portal for Abu Dhabi government ministries, utilizing React for the frontend and .NET for the backend, resulting in improved interoperability between government systems. Implemented efficient state management and asynchronous operations using React hooks, Context API, and Redux-Saga on the frontend, while optimizing backend performance with .NET Core microservices. Led the migration of legacy systems to modern React and .NET Core architectures, significantly enhancing overall application performance, maintainability, and scalability.
Full-Stack Engineer at Fidelity Pension Managers
September 30, 2019 - October 15, 2025
Developed custom software solutions for pension fund administration, improving operational efficiency by 25% and reducing processing time for 500,000+ member accounts. Built automated reporting systems using .NET and SQL Server, reducing manual report generation time from 8 hours to 30 minutes. Mentored 4 junior developers in .NET best practices, code review processes, and clean code principles, resulting in a 20% increase in team productivity. Implemented data validation and integrity checks, reducing data entry errors by 60%.
Software Engineer at Fidelity Pension Managers
September 1, 2019 - October 11, 2025
Developed custom software solutions for clients in the pension management industry, improving pension fund administration efficiency by 25%. Mentored junior developers in .NET best practices, resulting in a 20% increase in team productivity.
Software Developer at Fidelity Pension Managers
September 1, 2019 - October 11, 2025
Developed custom software solutions for clients in the pension management industry, improving pension fund administration efficiency by 25%. Mentored junior developers in .NET best practices, resulting in a 20% increase in team productivity.
Software Developer at Fidelity Pension Managers
September 1, 2019 - October 11, 2025
Developed custom software solutions for clients in the pension management industry, improving pension fund administration efficiency by 25%. Mentored junior developers in .NET best practices, contributing to a 20% increase in team productivity.
Software Engineer at Fidelity Pension Managers
September 1, 2019 - October 11, 2025
Developed custom software solutions for clients in the pension management industry, improving pension fund administration efficiency by 25%. Mentored junior developers in .NET best practices, resulting in a 20% increase in team productivity.

Education

Higher National Diploma (HND) at OSISA Tech Polytechnic, Enugu, Nigeria
January 1, 2009 - October 1, 2011
Higher National Diploma in Computer Science at OSISA TECH POLYTECHNIC
January 1, 2009 - October 1, 2011
Higher National Diploma (HND) in Computer Science at OSISA TECH POLYTECHNIC, Enugu, Nigeria
January 1, 2009 - October 1, 2011
Higher National Diploma (HND) at OSISA Tech Polytechnic, Enugu, Nigeria
January 1, 2009 - October 1, 2011
Higher National Diploma (HND) in Computer Science at Osisatech Polytechnic, Enugu, Nigeria
January 1, 2009 - October 1, 2011

Qualifications

Higher National Diploma (HND)
January 1, 2009 - October 1, 2011
Higher National Diploma in Computer Science
January 1, 2009 - October 1, 2011
Higher National Diploma (HND) in Computer Science
January 1, 2009 - October 1, 2011
Higher National Diploma (HND) in Computer Science
January 1, 2009 - October 1, 2011

Industry Experience

Software & Internet, Energy & Utilities, Financial Services, Government, Professional Services, Telecommunications, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more