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Kasem Alsharaa

@kasemalsharaa

Senior Backend Engineer building high-throughput systems, APIs and infrastructure across Go, Java, Python and TypeScript.

Sweden

Message

I’m a Senior Backend Engineer with 10+ years of experience building and operating production systems. I enjoy working on systems where performance, reliability and correctness genuinely matter — particularly distributed backends, real-time transactional systems, APIs and infrastructure.

My recent work has included rewriting legacy platforms, migrating services from Java and TypeScript to Go, moving production infrastructure to Kubernetes, cloud migrations, and building systems handling high-throughput real-time monetary transactions. I’ve worked across Go, Java, Python and TypeScript, with PostgreSQL, MySQL, MongoDB and cloud/container infrastructure.

I’m most interested in backend or platform roles where I can take real ownership, solve difficult technical problems and improve systems rather than just implement tickets. I’m especially drawn to distributed systems, fintech, infrastructure, performance work and modernization of existing platforms.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Multiverse ApS

Sep 2025 - Present (1 year 1 month)

Maintain and develop the Python backend, including production support, bug fixes and new features. Contribute to a full platform rewrite. Took ownership of platform and DevOps work, including Kubernetes migration, container deployments, server management and cloud infrastructure migration.

Python AWS Linux Cloud Infrastructure Backend Development Platform Engineering REST APIs MariaDB Kubernetes Docker DevOps Server Administration

Senior Backend Developer

Embark Group AB

Aug 2023 - Aug 2025 (2 years)

Built and optimized real-time transactional backend services in Java, TypeScript and Go, with strict requirements around performance, correctness and reliability. Helped move core systems from a monolith toward microservices, worked with Kubernetes in production, migrated legacy Java/TypeScript services to Go, and owned several external integrations.

Java TypeScript Go Microservices Spring Boot Kubernetes REST APIs API Integration Transactional Systems backend architecture Performance Optimization

Backend Developer

ELK Studios AB

Sep 2021 - Aug 2023 (1 year 11 months)

Designed and maintained backend APIs connecting game services with casino operators and external platforms. Built and optimized idempotent backend services handling 100M+ requests per day, including real-time monetary transactions. Improved database and application performance through SQL optimization and backend performance work.

Part-time Full Stack Engineer

TNS Gaming AB

Feb 2018 - Aug 2023 (5 years 6 months)

Developed and maintained a WooCommerce-based client platform, including custom WordPress plugins, backend functionality and frontend improvements. Worked on a redesigned version of the platform and improved performance, usability and maintainability based on client needs.

Freelance Backend Developer

Self Employed

Jun 2014 - Apr 2019 (4 years 10 months)

Developed backend solutions for multiple clients, primarily using PHP and Python. Designed and implemented backend systems based on client requirements and technical specifications, including third-party API integrations, automation and internal tooling.

PHP Python API Integration Automation