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Dzmitry ShulhinDS
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Dzmitry Shulhin

@shulhd

Staff software engineer specializing in distributed systems and AI performance engineering for reliable, high-load LLM inference.

Poland
Message

What I'm looking for

I’m looking for a team where I can push high-load reliability in distributed systems while driving AI performance engineering—optimizing LLM inference, GPU efficiency, and production MLOps with strong technical excellence.

I’m a Staff Software Engineer with a decade of experience in distributed systems, leading engineering from architecture to delivery. I focus on high-load reliability, technical excellence, and turning performance constraints into production-grade solutions.

In my recent work at VISA, I led cross-functional, platform-wide initiatives for high-load payment acceptance—upgrading TLS across microservices, enforcing PCI compliance, and migrating from embedded Hazelcast to a shared distributed cluster. I’ve also re-engineered agent availability with Kafka broadcasting, built Spark/Databricks ETL pipelines that cut processing runtimes by 30%, and developed Alexa TTS fine-tuning and AWS pipeline architectures that improved cache efficiency and enabled petabyte-scale processing.

Experience

Work history, roles, and key accomplishments

Visa logoVI
Current

Staff Software Engineer

Feb 2025 - Present (1 year 4 months)

Led cross-functional initiatives for high-load payment acceptance systems, orchestrating a platform TLS protocol upgrade while ensuring PCI compliance across microservices and maintaining high availability. Directed migration from embedded Hazelcast to a shared distributed cluster to improve resilience and observability while reducing infrastructure overhead and technical debt.

Allegro logoAL

Software Engineer

Mar 2024 - Feb 2025 (11 months)

Re-engineered third-party agent availability tracking by replacing high-overhead MongoDB polling with Kafka broadcasting and local caching, improving real-time synchronization and reducing redundant database usage. Architected GPT-based agents and deployed ML-driven fraud prevention services, reducing false positives by 11%.

Samba TV logoST

Software Engineer

Samba TV

Jun 2023 - Jan 2024 (7 months)

Worked on high-throughput data ingestion and downstream analytics reliability by implementing automated data cleaning and validation within Spark-based pipelines. Supported performance-focused ETL development to improve runtime efficiency for large-scale daily data processing.

Amazon logoAM

Software Development Engineer

Dec 2020 - May 2023 (2 years 5 months)

Developed a Dockerized fine-tuning pipeline for Alexa custom voice generation using BERT and vocoders to improve speech synthesis quality. Improved AWS Polly in-memory cache hit rate by 18% and built Kinesis-to-S3 Lambda architecture pipelines for petabyte-scale data processing.

Education

Degrees, certifications, and relevant coursework

NA

NEBIUS Academy

AI Performance Engineering Fellow, AI Performance Engineering

2026 -

Activities and societies: Building production-ready MLOps ecosystems using vLLM, Kubernetes, and MLflow for end-to-end AI lifecycle management with enterprise-grade observability and scale.

AI Performance Engineering Fellow specializing in LLM architecture and inference optimization, including KV-caching, Mixture of Experts (MoE), and LoRA fine-tuning.

Belarusian State University logoBU

Belarusian State University

Bachelor of Applied Science (BASc), Computer Science

Earned a Bachelor of Applied Science (BASc) in Computer Science at Belarusian State University.

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