Hakim Balestrieri

Available to hire

Hi, I'm Hakim Balestrieri. I'm a Senior Software Architect specializing in Java and cloud ecosystems, with 8+ years building high-availability systems.

About

Hi, I’m Hakim Balestrieri. I’m a Senior Software Architect specializing in Java and cloud ecosystems, with 8+ years building high-availability systems. I focus on the Java/Spring stack, microservices, and event-driven architectures, delivering robust solutions in energy, fintech, and logistics, while obsessing about code quality and CI/CD excellence.

In my recent roles, I’ve designed and shipped backend services, containerized microservices with Docker and Kubernetes on AWS, and built high-performance data pipelines. I enjoy collaborating with cross-functional teams, applying Clean Code, SOLID principles, and TDD, and mentoring teammates to raise the bar on reliability and developer happiness.

  • 12 years' experience
  • Joined September 2025

Languages

  • FrenchFluent
  • EnglishAdvanced
  • GermanIntermediate

Industry experience

  • Energy & Utilities
  • Financial Services
  • Software & Internet
  • Professional Services
  • Media & Entertainment
  • Government
  • Transportation & Logistics

Work experience· 21 roles

Freelance Software Engineer · Self-Employed / FreelanceJan 2025 – Present · 1 yr 11 mos

Contributed to the development and optimization of code analysis and quality tools used by international engineering teams. Designed and improved CI/CD pipelines to automate delivery and increase release reliability. Strengthened automated testing coverage (JUnit, Mockito) and monitored code quality metrics (coverage, duplication, maintainability). Participated in code reviews and applied best practices (Clean Code, SOLID, TDD). Supported DevOps tasks (CI/CD pipelines, Dockerized builds, test automation).

Freelance Software Engineer · Remote – GenevaJan 2025 – Present · 1 yr 11 mos

Contributed to the development and optimization of code analysis and quality tools used by international engineering teams. Designed and improved CI/CD pipelines to automate delivery and increase release reliability. Strengthened automated testing coverage (JUnit, Mockito) and monitored code quality metrics (coverage, duplication, maintainability). Participated in code reviews and applied best practices (Clean Code, SOLID, TDD). Supported DevOps tasks (CI/CD pipelines, Dockerized builds, test automation).

Freelance Software Engineer · Remote / GenevaJan 2025 – Present · 1 yr 11 mos

World-leading code quality tools vendor. Contributed to the development and optimization of code analysis and quality tools used by international engineering teams. Designed and improved CI/CD pipelines to automate delivery and increase release reliability. Strengthened automated testing coverage (JUnit, MockIt) and monitored code quality metrics (coverage, duplication, maintainability). Participated in code reviews and applied best practices (Clean Code, SOLID, TDD). Supported DevOps tasks (CI/CD pipelines, Dockerized builds, test automation).

Senior Software Engineer · Brighton, EnglandDec 2024 – Sep 2025 · 10 mos
Freelance Software Engineer · Brighton, EnglandDec 2024 – Sep 2025 · 10 mos
Software Engineer · World leading code quality vendorOct 2023 – Present · 3 yrs 2 mos
Backend Developer · ALPIQ LausanneSep 2023 – Sep 2025 · 2 yrs 1 mo
Backend Developer · ALPIQ Lausanne, VDSep 2023 – Sep 2025 · 2 yrs 1 mo

Education· 12

Bachelor of Engineering · Yverdon-les-Bains, VD2017 – 2022
CS50X - Software Development · Harvard, Online2018 – 2019
Federal Diploma of Vocational Education and Training (CFC) & FV B · Neuchâtel, NE2013 – 2017
Bachelor of Engineering · Yverdon-les-Bains, VD2017 – 2022

Certifications and awards· 6

CS50X - Software Development2018 – 2019
Federal Diploma of Vocational Education and Training (CFC) & FV B2013 – 2017
Federal Diploma of Vocational Education and Training (CFC)2013 – 2017
CS50X - Software Development (Online)2018 – 2019

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