Hamza Messaoudi
Senior Backend Developer
Experience
Senior Backend Developer
Osmospace/Telemaque
Backend/Database engineer for a next-gen CRM for Cosmospace, managing 20M+ records and supporting multiple microservices and real-time updates for a company with €50M annual turnover
Deployed multiple asynchronous microservices within an internal distributed messaging system
Standardized a 30-year-old legacy database, aligning data practices with GDPR regulatory requirements
Tools: NestJs, TypeScript, 4D, Redis, RabbitMQ, Rust, Couchbase, MongoDB
Verifiable Credentials Archival
Implementation for issuing verifiable credentials on the EBSI blockchain
VC signature validation using TR-ESOR
Backend Developer, Rust
Contain GmbH
Built dedicated SGX software solution for Intel Corporation in direct collaboration with their team in Poland
Delivered comprehensive product spanning from initial designs to business demonstrations
Designed and implemented attestation, key management, and TPM integration pipelines combining DCAP quote verification, HKDF key derivation, and enclave-sealed secrets to ensure end-to-end trust
Delivered and audited cryptographic subsystems across storage, licensing, and provisioning services to achieve confidentiality, integrity, and replay resistance
Worked in agile Scrum maintaining high test coverage and CI pipelines
Tools: Rust, SGX/Confidential Computing, Attestation, Key Management, GitLab CI/CD, Docker, Kubernetes, SQLite
Mogena Simulator for Macroscopic Molecular Communication
Analysed the suitability of different medium access control methods in macroscopic molecular communication and planned the software architecture
Implemented in Rust achieving a 10× performance increase compared to the Python legacy code
Microprocessor Programming Tutor
Technical University of Berlin
Planned and conducted classes and lab sessions; evaluated and reviewed submissions and exams
Tools: Assembly, C, MIPS CPU
Industries Experience
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Experienced in Information Technology (6.5 years), Education (3 years), and Biotechnology (1.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (6.5 years), Research and Development (4 years), and Product Development (3.5 years).
Summary
Performance-minded backend engineer with 3+ years of experience and end-to-end ownership across secure systems and data-intensive platforms: at Scontain, shipped Rust services for Intel’s SGX confidential-computing stack, building low-latency, test-driven code with CI pipelines and hardened cryptographic practices; at Cosmospace/Telemaque, modernized a 30-year legacy CRM into an event-driven platform handling 20M+ records, real-time pipelines, and GDPR-aligned data standards—delivering scalable microservices and resilient async messaging.
Skills
Core Engineering Skills
- Event-driven & Async Systems
- Api-first
- Devops
- Cryptographic Engineering
Business Proficiencies
- Cross-team Solution Optimization
- Gdpr Compliance
- Stakeholder Demos
Personal Skills
- Rapid Onboarding
- Short Time-to-impact
- Analytical & Systems Thinking
Languages
Education
Technical University of Berlin
Electrical Engineering, Bachelor of Science · Electrical Engineering · Berlin, Germany
Profile
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