Open to opportunities

Itamar Tati

@itamartati

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Senior Backend Engineer specializing in Java/JVM, high-concurrency distributed systems, and database performance.

United Kingdom

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What I'm looking for

I seek backend or platform roles that emphasize high-concurrency, high-availability distributed systems, strong engineering practices, and opportunities to work on Web3/DEX or financial-grade infrastructures.

I am a Senior Backend Engineer with 5+ years of hands-on Java (Spring Boot) and JVM experience, focused on designing and scaling high-concurrency, high-availability distributed systems. I prioritize secure, high-throughput architectures and rigorous code quality.

Throughout my career I have architected and optimized backend microservices to support significant user and transactional growth, implemented secure REST APIs, and applied advanced MySQL and PostgreSQL performance tuning to measurably improve throughput and latency.

I have extensive experience with distributed middleware such as Kafka, caching solutions like Redis, and cloud infrastructure on AWS, combined with infrastructure-as-code using Terraform and automated CI/CD pipelines. I consistently maintain 100% automated test coverage and strong API security practices.

I am eager to apply my expertise to challenging Web3, blockchain, and decentralized exchange (DEX) projects where reliability, low-latency performance, and secure financial data handling are essential.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

Youchoose Care

Jun 2024 - Present (1 year 4 months)

Engineered and deployed AWS-based backend microservices to support a 50% increase in transactional load and user concurrency while maintaining high availability and reliability. Designed secure, high-performance REST APIs and implemented cloud-native data protection and authentication mechanisms.

Java Spring Boot AWS REST APIs MySQL & Security Terraform CI CD

Current

Contract Backend Engineer

Current

Waystation Ltd

Apr 2024 - Present (1 year 6 months)

Architected and optimized scalable backend services to accommodate a 30% user growth, improving availability and performance through caching and advanced MySQL/PostgreSQL query optimization. Automated deployments with Terraform and AWS to reduce downtime.

Java Spring Boot MySQL PostgreSQL Caching AWS Terraform CI CD Performance Tuning

Contract Backend Engineer

Dayshape

Nov 2023 - Apr 2024 (5 months)

Developed .NET backend integrations to synchronize high-throughput data between Workday and internal systems, delivering reliable distributed data pipelines and maintaining platform reliability and data integrity.

.NET Integration Data Pipelines Distributed Systems Workday High Throughput Reliability API Design

Contract Backend Engineer

Fundment

Jul 2023 - Nov 2023 (4 months)

Improved backend performance by 50% through profiling and MySQL/SQL query optimization and built a secure, low-latency financial data backend focused on compliance and reliability. Delivered key features for financial reporting.

MySQL SQL Tuning Java Spring Boot Performance Profiling & Security Financial Systems

Backend Engineer

Panaseer

Apr 2021 - Jul 2023 (2 years 3 months)

Led development of enterprise analytics workflows within a microservices architecture using Spring Boot and NiFi, achieving 100% backend test coverage for new features and improving modularity and maintainability of APIs and services.