Doriyan Esterin

Software Engineer

Ramat Gan, Tel Aviv District, Israel9 yrs 5 mos experience

Most Likely To Switch

Key Highlights

Expert in designing scalable backend systems.
Strong focus on performance and reliability.
Hands-on experience with Java and Kotlin.

Stackforce AI infers this person is a Backend Engineer specializing in scalable SaaS solutions.

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Skills

Core Skills

JavaSpring Boot

Other Skills

SQLReact.jsMongoDBTypeScriptDockerSpring FrameworkSpring MVCGo (Programming Language)GraphQLJavaScriptSoftware DevelopmentProject ManagementAgile Project ManagementNode.jsJSON

About

Backend engineer focused on building scalable, reliable, and high-performance systems in Java, with hands-on Kotlin work through personal projects and system explorations. I work on backend services in production environments — from designing and evolving services to improving performance, reliability, and system behavior under real workloads. Much of my work is about making pragmatic tradeoffs between correctness, scalability, and long-term maintainability, and understanding their impact at the system level. I’m especially interested in how systems behave in the real world: performance under load, failure modes, and the hidden costs of architectural decisions. I enjoy digging under the hood, experimenting, and using those insights to guide better technical decisions. Always happy to connect with engineers and teams working on real-world backend and distributed systems challenges.

Experience

9 yrs 5 mos

Total Experience

2 yrs 4 mos

Average Tenure

2 yrs 8 mos

Current Experience

Cato networks

Software Engineer

Aug 2023 – Present · 2 yrs 8 mos · Tel Aviv District, Israel · Hybrid

Designing and building backend services handling large-scale data with a strong focus on performance and reliability.
Developing and maintaining high-performance, scalable services in Java (Spring Boot) within a production environment.
Improving system robustness by addressing performance bottlenecks, reliability issues, and scalability limitations.
Working closely with Product, Data, Security, and UX teams to deliver production-ready solutions.
Investigating and introducing technical improvements to enhance system behavior under real workloads.
Taking ownership of backend components from design through production.
Participating in architectural discussions and technical decision-making

JavaSpring BootSQLReact.jsMongoDBTypeScript+5

Elbit systems ltd

2 roles

Software Engineer

Sep 2022 – Jul 2023 · 10 mos

Leading 2 development teams.
Planning and development of new user-facing products and features.
Building robust and scalable software components and services.
Collaborate with other team members and stakeholders.
Troubleshoot, debug and upgrade software.
Seeing through a project from conception to finished product.

Senior Fullstack developer

Oct 2021 – Sep 2022 · 11 mos

Planning and development of new user-facing products and features.
Building robust and scalable software components and services.
Collaborate with other team members and stakeholders.
Troubleshoot, debug and upgrade software.
Seeing through a project from conception to finished product.

Ibm

Software Engineer

Sep 2020 – Sep 2021 · 1 yr · Center District, Israel

Leading all product development phases: Requirements gathering, specifications and software development, system delivery and training of users.
Building and maintaining complex data structures; scale them accordingly.
Working in collaboration with high authorities.
Technology used during the development process: Java, JavaScript, IntellJ, MongoDB, MobaX, Docker Container, GitLab.

Israel defense forces

4 roles

Software Engineer

Promoted

Jan 2020 – Sep 2020 · 8 mos

Leading all product development phases: Requirements gathering, specifications and software development, system delivery and training of users.
Building and maintaining complex data structures; scale them accordingly.
Working in collaboration with high authorities.
Technology used during the development process: Java, JavaScript, IntellJ, MongoDB, MobaX, Docker Container, GitLab.

Project Manager

Feb 2019 – Jan 2020 · 11 mos

Improving the working methods and processes in the Shob section of the Logistics Corps.
Responsible for building and monitoring yearly plans
Leading the planning and control of process at the Shob section of the Logistics Corps.

Deputy Manager Human Resources

Promoted

Sep 2017 – Jan 2019 · 1 yr 4 mos

Responsible for integrating the role changes of all the junior officers at the Logistics Corps.
Responsible for promoting all junior officers to senior officers.
Responsible for over 900 junior officers