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Hi, I'm Sergey Lagutin, a Senior Backend Engineer with 18+ years of experience designing and building high-performance distributed systems in Java and Scala. I specialize in microservices, event-driven architectures, and cloud-native platforms, with a strong focus on clean architecture, reliability, and performance optimization. I enjoy leading backend teams to deliver scalable solutions used by millions of users. In previous roles at Revolut, Intellias, Stuart, and Anadea, I guided architecture decisions, migrated CI/CD pipelines, and designed scalable service architectures to support multi-country expansion and regulated environments. I'm passionate about mentorship, practical engineering practices, and delivering robust systems with a focus on quality and maintainability.…Hi, I'm Sergey Lagutin, a Senior Backend Engineer with 18+ years of experience designing and building high-performance distributed systems in Java and Scala. I specialize in microservices, event-driven architectures, and cloud-native platforms, with a strong focus on clean architecture, reliability, and performance optimization. I enjoy leading backend teams to deliver scalable solutions used by millions of users. In previous roles at Revolut, Intellias, Stuart, and Anadea, I guided architecture decisions, migrated CI/CD pipelines, and designed scalable service architectures to support multi-country expansion and regulated environments. I'm passionate about mentorship, practical engineering practices, and delivering robust systems with a focus on quality and maintainability.

Sergey Lagutin

Back-End Developer, Developer, Full Stack Developer, +2

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Hi, I'm Sergey Lagutin, a Senior Backend Engineer with 18+ years of experience designing and building high-performance distributed systems in Java and Scala. I specialize in microservices, event-driven architectures, and cloud-native platforms, with a strong focus on clean architecture, reliability, and performance optimization. I enjoy leading backend teams to deliver scalable solutions used by millions of users. In previous roles at Revolut, Intellias, Stuart, and Anadea, I guided architecture decisions, migrated CI/CD pipelines, and designed scalable service architectures to support multi-country expansion and regulated environments. I'm passionate about mentorship, practical engineering practices, and delivering robust systems with a focus on quality and maintainability.…Hi, I'm Sergey Lagutin, a Senior Backend Engineer with 18+ years of experience designing and building high-performance distributed systems in Java and Scala. I specialize in microservices, event-driven architectures, and cloud-native platforms, with a strong focus on clean architecture, reliability, and performance optimization. I enjoy leading backend teams to deliver scalable solutions used by millions of users. In previous roles at Revolut, Intellias, Stuart, and Anadea, I guided architecture decisions, migrated CI/CD pipelines, and designed scalable service architectures to support multi-country expansion and regulated environments. I'm passionate about mentorship, practical engineering practices, and delivering robust systems with a focus on quality and maintainability.

Available to hire

Hi, I’m Sergey Lagutin, a Senior Backend Engineer with 18+ years of experience designing and building high-performance distributed systems in Java and Scala. I specialize in microservices, event-driven architectures, and cloud-native platforms, with a strong focus on clean architecture, reliability, and performance optimization. I enjoy leading backend teams to deliver scalable solutions used by millions of users.

In previous roles at Revolut, Intellias, Stuart, and Anadea, I guided architecture decisions, migrated CI/CD pipelines, and designed scalable service architectures to support multi-country expansion and regulated environments. I’m passionate about mentorship, practical engineering practices, and delivering robust systems with a focus on quality and maintainability.

Skills

Experience Level

Expert

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Language

Javanese

Fluent

Work Experience

Senior Backend Engineer at Revolut

January 1, 2025 - Present

Designed and implemented asynchronous event-processing architecture for high-volume financial operations. Led large-scale account migration to a new legal entity with regulatory compliance and zero downtime. Improved platform stability and domain isolation by introducing namespace-based process segregation. Contributed to architectural decisions in a high-load fintech environment with strict reliability and compliance requirements.

Senior Backend Engineer at Intellias

January 1, 2022 - January 1, 2025

Contributed to system-level architecture of a distributed microservices platform. Led migration of CI/CD pipelines to new infrastructure, improving reliability and maintainability. Reduced CI/CD execution time by 50% through optimization of functional test architecture and parallelization. Designed and implemented SSO integration, improving authentication consistency and user experience. Built internal candidate assessment framework, significantly reducing time-to-hire.

Senior Platform Engineer at Stuart

January 1, 2021 - January 1, 2022

Improved real-time delivery prediction accuracy by redesigning data processing and analysis workflows. Designed and implemented an extensible internal plugin framework to accelerate platform feature development. Reduced cloud infra costs by optimizing storage and improving resource allocation. Enhanced deployment pipelines by introducing blue-green deployment strategy.

Senior Backend Engineer at Anadea

January 1, 2014 - January 1, 2021

Integrated machine learning models into an educational platform, reducing assessment processing time and improving automation. Increased system throughput by redesigning data storage strategy and introducing graph database solutions. Designed and delivered MVP in a new programming language, enabling faster time-to-market. Mentored a team of 3 engineers; conducted architectural reviews and introduced backend best practices.

January 1, 2008 - January 1, 2014

Designed and implemented internal service platforms including news distribution, surveys, and fraud monitoring systems. Optimized reporting system performance through advanced query tuning and database restructuring. Introduced Scala into the engineering team, contributing to improved codebase maintainability and functional programming adoption.

Software Engineer

January 1, 2008 - January 1, 2014

Designed and implemented internal service platforms including news distribution, surveys, and fraud-monitoring systems. Optimized reporting system performance via advanced query tuning and database restructuring. Introduced Scala into the engineering team, contributing to improved codebase maintainability and functional programming adoption.