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PARIS MESIDIS

@parismesidis

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Senior software engineer specializing in distributed systems, Go, and cloud-native architecture.

Cyprus

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What I'm looking for

I seek senior engineering roles focused on distributed systems, cloud-native architecture, and scalable backend services where I can lead designs, mentor engineers, and deliver reliable production systems.

I am a senior software engineer with 13+ years of experience building backend systems, distributed services, and full-stack delivery across finance, telecom, and embedded domains. I specialize in Go and Rust, and I focus on cloud-native microservices, systems-level programming, and reliable payments and membership platforms.

Throughout my career I have designed and implemented backend microservices using REST/gRPC, Kafka, Kubernetes (EKS), AWS, Terraform, MongoDB and PostgreSQL, and I have maintained and extended core systems in Java, Spring Integration and C++. I have led teams, provided architectural guidance, and contributed to CI/CD and delivery automation to improve reliability and deployment velocity.

My hands-on projects include refactoring monoliths into microservices, building payment integrations, and implementing a Rust-based B+ Tree storage engine with copy-on-write semantics and epoch-based reclamation. I bring pragmatic engineering, mentorship, and a focus on scalable, maintainable systems.

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Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

ABC Fitness

May 2025 - Present (6 months)

Built membership management and payments platform, refactoring PHP monolith into Go microservices (REST/gRPC) and integrating payment providers to support global fitness centers.

Go gRPC REST)Kafka MongoDB SQL AWS CI CD Payment Integration REST

Senior Software Engineer

XM Trading Point Holdings Ltd.

Jan 2019 - May 2025 (6 years 4 months)

Led design and implementation of backend microservices in Go, improving platform scalability using Kafka, Kubernetes (EKS), PostgreSQL and Terraform while mentoring backend teams.

Go Python gRPC Kafka

Senior Software Developer

Amdocs

Sep 2017 - Dec 2018 (1 year 3 months)

Developed and maintained OSS/BSS billing systems for telecom clients using Java and Spring Integration, contributing to CI/CD pipelines and delivery automation.

Java OSS CI CD MySQL

Software Engineer

Cisco

Dec 2016 - Jun 2017 (6 months)

Maintained middleware for digital TV set-top box platforms and developed embedded Linux functionality in C++ and Python to meet customer-specific requirements.

C++Python Middleware Firmware

Software Developer

Alcova Asset Management

Aug 2015 - Oct 2016 (1 year 2 months)

Developed low-latency market data feed handlers and direct market access components in C++ for HFT systems and built backtesting utilities in C++ and Python.

C++Python Pandas HFT

Software Developer

University of Oxford

Feb 2015 - Aug 2015 (6 months)

Implemented MapCraft indoor positioning system in C++ and ported Matlab prototypes to optimized C++/Android code, contributing research framework components in Python.

C++Android Python Pandas

Software Engineer

Big Systems Technologies

Sep 2014 - Jan 2015 (4 months)

Developed real-time mobile positioning and motion-tracking algorithms using C++/Boost and CUDA, and performed data analysis with MongoDB.

C++CUDA Python NumPy

Graduate Software Engineer

Imagination Technologies

Apr 2012 - Aug 2014 (2 years 4 months)

Developed low-level C and assembler test software to verify processor micro-architectural features and maintained automated test and build frameworks for simulator/IDE tools.

C++Assembly Processor Verification Testing Frameworks