# Александр Фефилов

Александр Фефилов is a remote worker on Himalayas, Kotlin backend developer at Alfa-Bank, based in Serbia.

Source: https://himalayas.app/@0006751

```text
Kotlin backend developer at Alfa-Bank who improved image processing time by about 9%.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Serbia |
| Authorized to work in | Serbia |
| Salary expectations | 55k+ EUR |
| Job categories | Java Developer, Software Engineer, Full Stack Engineer |
| Skills | Java, Kotlin, Spring Boot, Microservices, Kafka, Event Driven Architecture, High Performance Systems, Low Latency Systems, Fintech, Video Streaming, MongoDB, Redis, PostgreSQL, SQL, NoSQL |
| LinkedIn | https://linkedin.com/in/avfefilov |

## About

```text
At Alfa-Bank, I designed and presented architecture for application customization across the company's microservices, and built a service for managers to configure settings by user segment.

I analyzed service requests and optimized data access and image processing across services, improving processing time by about 9%.

At MTS Digital, I redesigned content licensing updates to use Kafka events instead of synchronous calls, addressing storefront delays and desynchronization. I also optimized content preparation and helped unify analytics and logging across services.

Earlier, I worked on financial projects at Integrity Solutions and contributed to data streaming, telecom billing analytics, and Java and Spring microservices at Nexign and Sberbank-Technology.
```

## Experience

### Kotlin backend developer (current)

Alfa-Bank. Feb 2024 - Present

```text
- Designed and presented the architecture for implementing application customization functionality within the company's microservices architecture (200+ microservices). Built a service enabling managers to configure customization settings (package availability by user segment).

- Actively participated in team and cross-team meetings to discuss and resolve architectural and technical issues. For
```

### Java Software Developer

MTS Digital. Jun 2022 - Jan 2024

```text
- Redesigned inter-service communication architecture for the content "licensing window" change functionality: replaced synchronous calls with an event-driven approach via Kafka, eliminating delays and desynchronization of the client-facing storefront during licensing window updates.

- Optimized the content preparation pipeline for display (licensing window checks, availability checks, cache war
```

### Java Software Engineer

Integrity Solutions. Nov 2020 - Jun 2022

```text
- Worked on financial projects, developing and managing customer-facing components across multiple projects.

- Integrated and enhanced a software encryption system deployed in production environment.
```

### Full Stack Software Engineer

Nexign. Feb 2019 - Nov 2020

```text
- Participated in the development of multiple services for data streaming configuration and management.

- Developed a system for capturing analytics data for the billing system of a telecom operator.
```

### Full Stack Software Engineer

Sberbank-Technology. Sep 2016 - Jan 2019

```text
- Participated in design and development backend services using Java and Spring within a microservice architecture.
- Built and maintained REST APIs and contributed to the React-based frontend for internal management applications.
- Contributed to DevOps activities, performed Linux system administration tasks, make a migration from Tomcat to Wildfly, and troubleshot deployment issues in test and
```

## Education

### Saint Petersburg State Electrotechnical University "LETI"​

Master's degree, Information Technology. 2014 - 2016

### Saint Petersburg State Electrotechnical University "LETI"​

Bachelor's degree, Information Technology. 2010 - 2014

## Tech stack

- PostgreSQL
- MongoDB
- Spring Boot
- Redis
- Jira
- Gradle
- React
- Java
- Kotlin
- Kafka
- RabbitMQ
- Confluence
- JUnit
- Mockito
- Wildfly
- SQL
- Apache Kafka

To contact Александр, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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