You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Aydin MohandesiAM

Aydin Mohandesi

Senior Infrastructure Software Engineer

€300/day
Barcelona, ES
8-15 years

Average response time: 1 hour

About Aydin

I help startups, SMEs and technical teams automate repetitive work, solve backend and infrastructure problems, and improve existing software systems.

I work hands-on with Python, C++, C#, Java, Linux, Docker, APIs, databases, messaging systems and AI/LLM automation workflows. I can quickly understand an existing system, identify the main technical issue and deliver a practical solution without unnecessary complexity.

Typical projects I can handle:

• Python and AI-agent automation
• API and third-party service integrations
• Backend debugging and performance improvements
• Docker, Linux and deployment troubleshooting
• Legacy-system modernization
• Messaging systems and distributed workflows
• Technical architecture and code reviews
• Research, NLP and data-processing software

I have more than 9 years of professional experience across financial trading systems, cloud platforms, university and research infrastructure, industrial monitoring and language-technology products. I have worked with environments containing 80+ Dockerized services and business-critical systems where reliability and performance were essential.

I am based in Barcelona and available for remote assignments, on-site work and short-term technical projects. I communicate clearly, work independently and focus on delivering usable results.
  • Persian

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

  • Azerbaijani

    Fluent

Can work on-site
Barcelona (up to 50km)

Experience

  • Sahra Co.
    Senior Software Engineer — Trading Systems & Backend Infrastructure
    DIGITAL AND IT
    February 2025 - January 2026 (11 months)
    Tehran, Tehran Province, Iran
    • Modernized legacy OMS and trading workflows used in an environment supporting 34 brokerage firms.
    • Redesigned core message lifecycle workflows, achieving approximately 3x faster message generation and dispatch.
    • Built message‑driven backend services and integration pipelines for brokerage‑related trading operations.
    • Improved reliability and operational continuity across 3+ core services and multiple OMS workflows.
    • Skills: C#, C, .NET Core, NATS, RabbitMQ, MSSQL, QuestDB, Docker, Linux, message‑driven architecture, backend services, legacy‑system modernization, trading workflows.
    C++ C# .net core NATS RabbitMQ
  • Djuno Inc.
    Senior Software & Infrastructure Engineer
    DIGITAL AND IT
    October 2020 - November 2022 (2 years and 1 month)
    Zug, Switzerland
    • Designed and implemented backend services, distributed infrastructure, and deployment workflows for cloud‑oriented digital platforms.
    • Worked across 80+ Dockerized services deployed across Amazon Web Services and Hetzner infrastructure.
    • Improved deployment workflows, supporting deployment cycles typically completed in under 3‑4 minutes.
    • Supported production systems handling high‑traffic campaign events with 10,000+ participants and related traffic spikes.
    • Skills: Python, Modern‑C++, Java, C#, .NET Core, Node.js, PostgreSQL, MongoDB, Docker Swarm, Django, Flask, Vue.js, AWS, Hetzner, CI/CD.
    Python Java C++ MongoDB VueJS
  • Institute for Advanced Studies in Basic Sciences (IASBS)
    Systems Software Engineer & Infrastructure Architect
    DIGITAL AND IT
    March 2017 - July 2024 (7 years and 4 months)
    Zanjan, Zanjan Province, Iran
    • Designed, maintained, and modernized software and infrastructure systems supporting academic, administrative, and research operations.
    • Supported 20+ critical services and VMs across university infrastructure, including authentication, storage, web, DB, and institutional systems.
    • Built and operated institution‑wide online‑learning infrastructure supporting 700+ daily users, with sessions reaching up to 300+ participants.
    • Delivered software and infrastructure solutions across Linux servers, storage, auth, backend services, CI/CD, and operational reliability.
    • Skills: C, C++, Java, PHP, Linux, Docker, MySQL, BBB, authentication systems, storage, CI/CD, observability, eBPF concepts, HPE servers, infrastructure architecture.
    C++ C Java Python PHP

Recommendations

Be the first to recommend Aydin

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master of Science (MSc)
    Institute for Advanced Studies in Basic Sciences (IASBS)
    2024
    Master of Science (MSc)
  • Bachelor of Engineering (BEng)
    Institute for Advanced Studies in Basic Sciences (IASBS)
    2019
    Bachelor of Engineering (BEng)

Skill set

Categories