Full Stack Engineer

Open to full-time
Bio

Joseph A is a seasoned Senior Software Engineer with extensive experience in designing and maintaining scalable enterprise-grade systems across diverse industries. His technical prowess spans a broad array of technologies including .NET, C#, PostgreSQL, RabbitMQ, Kafka, React, React Native, SAP, Azure, AWS, and Google Apigee. At Heidelberg Materials Digital Hub, Joseph played a crucial role in developing microservices and digital platforms that enhanced the efficiency of construction material sales and distribution, supporting over 1,000 daily customer orders in multiple markets. Previously, as a Full-Stack .Net Developer at Advanced Field Solutions, he led the development of workforce management systems and HR platforms, significantly improving business operations across the UK, Ireland, the United States, and Turkey. His career also includes impactful contributions to web development and SaaS platforms, focusing on healthcare and educational management systems. Joseph's ability to collaborate effectively with cross-functional teams, coupled with his commitment to robust, maintainable code, makes him a valuable asset to any technology-driven organization.

Video Intro
Assessments
APPLICANT AVG · 50%JOSEPH · 82%0255075100TopASSESSMENT SCORE (0–100)

General Coding and Video Assessment

(82/100)
  • Count Subarrays with Sum Equal to KEasy
  • Client-Side Authentication Failure InvestigationMedium
  • Discuss the Advantages of Context API vs. Redux in ReactHard
Projects

Healthcare Management SaaS Platform

Designing, developing and maintaining a healthcare management platform focused on organizational, facility, employees and patients’ management.

Marketing & Commerce Platform

Co-developed a marketing and commerce micro-service platform featuring marketplace capabilities, online store integration, POS functionality, and inventory management.

Experience

  1. Senior Software Engineer

    Heidelberg Materials Digital Hub· Logistics & Supply ChainOct 2024 — May 2026
    • Designed and maintained enterprise-grade microservices using .Net, PostgreSQL, RabbitMQ, Kafka, React, React Native, Backstage, SAP, GitLab, Azure, Argo, and Google Apigee.
    • Contributed to digital platforms supporting the sale and distribution of construction materials.
    • Collaborated with engineering teams to design, develop, and maintain backend services, features, and APIs supporting over 1,000 customers orders daily across multiple European and American markets.
    • Shipped APIs exposed through Google Apigee and Backstage.
    • Worked closely with cross-functional teams to improve platform performance, reliability, and scalability for a customer base exceeding 1,000 business clients.
    C#.NETPostgreSQLRabbitMQKafkaReactReact NativeBackstageSAPGitLabAzureArgoGoogle Apigee

  2. Full-Stack .Net Developer

    Advanced Field Solutions· Logistics & Supply ChainSep 2023 — Sep 2024
    • Designed workforce management systems used daily by field engineers and supervisors across the UK, Ireland, United States, and Turkey.
    • Collaborated with engineering teams to build and maintain monolith-based business applications.
    • Contributed to the design and shipping of APIs supporting integrations with external systems.
    • Led development of an HR and employees onboarding platform developed and deployed to AWS.
    • Maintained and extended legacy applications built with .Net Framework and Webforms.
    • Improved application reliability through bug fixes, enhancements, and ongoing maintenance activities.
    .NETAWSWebformsReactC#AzureSQL ServerPostgres

  3. Lead Web Developer

    Ibiaso Brands Digital· Enterprise & SaaSJan 2020 — Jan 2021
    • Developed and maintained web applications and websites for clients.
    • Gathered requirements from stakeholders and translated business into technical solutions.
    • Managed application updates, feature enhancements, and ongoing support activities.
    JavaScript.NetC#AzureReact

  4. Freelance Software Developer

    Freelance· Enterprise & SaaSJan 2017 — Jan 2019
    • Developed custom software solutions and web applications for clients.
    • Delivered backend and frontend functionality using modern technologies.
    • Supported clients through implementation, maintenance, and troubleshooting activities resulting over 95% average ratings and client satisfaction.
    .NetC#ReactJavaScript
Education

  1. Bachelor of Education (B.Ed.) - Computer Science

    University of Cape Coast, GhanaGhana2012 — 2017
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Full Stack Engineer

Accra, Ghana · 4+ years experience

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