Backend Developer · Uppsala, Sweden

I build reliable
backend systems.

Around five years of experience building Java and Spring Boot services, event-driven systems with Kafka, and containerized deployments with Docker and Kubernetes. Experienced with production code, REST APIs, microservices, database tuning, Linux, AWS and Azure.

JavaSpring BootKafkaKubernetesAWSPostgreSQL
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About

Backend-first, production-minded, comfortable across the stack.

≈5 years

Professional software development experience.

25%

Server-response improvement through indexing and query tuning.

60/120

MSc Information Systems credits completed at Uppsala University.

Technical skills

Technologies used across backend, cloud and delivery workflows.

Backend & architecture

JavaSpring BootREST APIsMicroservicesKafkaServer-Sent EventsSpring SecurityMavenC#.NET Core

Cloud & DevOps

AWSAzureDockerKubernetesLinuxGitGitHub ActionsCI/CD

Data

PostgreSQLMariaDBMySQLMongoDBSQLDatabase tuning

Integration & workflow

DICOMEHR integrationSwaggerPostmanAgile/ScrumTeamwork

Experience

Production systems in healthcare, mobile and cloud environments.

Web and App Developer

Healthhub Co., Ltd. · Remote · Mar 2022 – Mar 2026
  • Designed and maintained Java/Spring Boot REST APIs and microservices for medical imaging and referral workflows.
  • Produced and consumed Kafka events and configured topics for asynchronous service communication.
  • Deployed services on Kubernetes in Linux-based AWS infrastructure.
  • Reduced server response times by 25% through MariaDB and PostgreSQL query and index tuning.
  • Integrated DICOM, third-party EHR systems and SSE-based real-time updates.
  • Led backend scalability, disaster recovery, HBackup and HTeleRad platform work.

Software Developer

Logic-Unit · Karachi, Pakistan · Feb 2021 – Feb 2022
  • Enhanced Java/Xamarin mobile apps and upgraded .NET Core backend services.
  • Developed and deployed backend services in Linux environments through Azure workflows.
  • Improved system availability by 40% through cloud deployments on Microsoft Azure.
  • Implemented CI/CD pipelines with GitHub Actions.
  • Designed REST API services integrated with Azure cloud solutions.

Selected projects

Healthcare platforms and production backend systems.

HTeleRad

Teleradiology platform connecting medical institutions and radiologists for reading requests, reporting, billing and DICOM integration. Built with Java Spring Boot and deployed on AWS.

Visit project

HRefer / HPACS

Cross-institution referral management with real-time updates through Server-Sent Events and deep EHR integration.

Visit project

HBackup

Secure medical-data backup and recovery solution using AWS services and end-to-end encryption for data integrity and disaster recovery.

Education

Software engineering foundation with current Information Systems studies.

MSc Information Systems

Uppsala University

EQF level 7 · 60 of 120 credits completed.

BSc Computer Science

Sukkur IBA University

Thesis: Eyes on School Going Baby. Fully Funded THP Scholarship 2016 and HEC Scholarship 2017.

Let’s connect

Open to software development and backend engineering opportunities.

Email

khairmuhammad2048@gmail.com

LinkedIn

linkedin.com/in/khair-muhammad

GitHub

github.com/khairmuhammad