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Rulon Oboev

@rulonoboev

Senior Java Software Engineer building high-load backend systems with strong architecture, reliability, and performance focus.

Belarus

Message

What I'm looking for

I want to leverage deep technical leadership and best practices to build high-quality, scalable backend products. I’m excited to work in a forward-thinking engineering team focused on reliability, observability, and performance.

I’m a Senior Java Software Engineer with 7+ years of full-cycle expertise designing, developing, and maintaining high-load, scalable backend systems for critical domains like FinTech, AdTech, Telecom, IoT, and HealthTech. I architect robust solutions that improve performance, reliability, and business outcomes.

At Alfa-Bank, I’ve worked on the flagship INSNC mobile banking platform serving over 1 million active users and millions of transactions daily. I designed and implemented Loyalty Program services, and built distributed backend services with Java and Spring, ensuring high availability, scalability, and security (PCI DSS compliance).

I also strengthen engineering quality end-to-end: I set up and improved observability with Prometheus, Grafana, and ELK; wrote unit, integration, and end-to-end tests using JUnit, Testcontainers, and Mockito; and owned post-release support. I profile microservices, analyze logs, optimize system hotspots, and continuously raise delivery quality.

Before that, I led serverless, event-driven ETL pipelines at Coherent Solutions (ISsoft) in the ad-tech domain, building core Java logic on AWS Lambda with S3/SQS and loading results into AWS RDS (PostgreSQL). Across roles, I mentor developers, perform code reviews, and support technical interview and hiring activities for Middle/Senior backend engineers.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Alfa-Bank

Nov 2023 - Present (2 years 7 months)

Built and maintained microservice backend services for Alfa-Bank’s INSNC mobile banking platform serving 1M+ active users. Designed loyalty program services, improved observability (Prometheus/Grafana/ELK), strengthened reliability with unit/integration/end-to-end tests, and mentored backend engineers.

Java Spring Boot Microservices Loyalty Programs Observability Prometheus Grafana ELK Mockito

Senior Software Engineer

Coherent Solutions (ISsoft)

Nov 2021 - Nov 2023 (2 years)

Designed and implemented a serverless, event-driven ETL pipeline for in-flight video measurement across TV/CTV/desktop/mobile. Built terabyte-scale CSV ingestion and transformation in Java on AWS Lambda (S3 events to SQS), loaded results into AWS RDS (PostgreSQL), and led a team of 3 developers.

Java Serverless AWS Lambda SQS PostgreSQL RDS data transformation Fault Tolerance Team Leadership

Software Engineer

AWTG Ltd

Nov 2020 - Nov 2021 (1 year)

Developed and maintained backend functionality for web and mobile applications in the clinic medicine domain. Managed CI/CD and server configuration, integrated new technologies, refactored code, and mentored junior developers.

Backend Development CI CD Pipelines Configuration Technology Integration Code Refactoring Code Review Mentoring

Software Engineer

AWTG Ltd

Feb 2020 - Nov 2020 (9 months)

Built backend functionality for a telecommunications application that processes communication-site data and displays it on a map. Implemented XML parsing, generated Excel reports, improved performance, and managed server configuration and CI/CD.

Backend Development XML Excel reporting Performance Optimization CI CD Pipelines Configuration Code Refactoring

Software Engineer

AWTG Ltd

Sep 2019 - Feb 2020 (5 months)

Added backend features for a system that processes data from mobile and IoT devices. Consumed/produced messages via a queue, implemented basic authorization for the Kafka broker, and supported bug fixing and requirements clarification.

Backend Development Message Queues Apache Kafka Authorization Data Processing Debugging

Software Engineer

AWTG Ltd

May 2019 - Sep 2019 (4 months)

Developed backend features for an indoor GPS positioning application. Implemented shortest-path calculation, built QR-code generation and processing, and handled requirements clarification and bug fixing.

Backend Development Shortest Path Algorithms Debugging Data Processing