Andrew Molchanov Email & Phone Number

1. Developed deposit contract functionality to increase the company’s working capital.2. Simplified UX by isolating account operations to enhance customer retention.

Great time to improve my fundamental knowledge in CS: algorithms and system design.Check out my leetcode profile https://leetcode.com/u/neodelf/

Gzira, Malta, Mt

1. Decreased response time for each service by more than 20% by designing architecture, developing, deploying and maintaining a JWT library for microservice authentication.2. Reduced number of cron jobs by 7 times, decreased hardware usage during peak times (CPU by 25%, RAM by 5%) and reduced latency in peak times for end users by 10% by investigating cron job efficiency and optimizing cron job work.

Gzira, Malta, Mt

1. Prevented a 20% loss in revenue by designing, architecturing, developing and implementing an application from scratch to meet new license requirements using mostly Ruby, Rails, Apache Kafka in three months.2. Increased code quality by organizing code reviews.3. Communicated with licensing regulator for clarification of the requirements to schedule achievable goals.4. Completed project on time by estimating, managing and planning all team tasks.5. Simplified the data handling process by collaborating with other teams to clarify the data formatting.6. Improved code quality, and increased speed by conducting a Continuous Integration process.

Gzira, Malta, Mt

1. Increased company revenue by 10% by architecturing, developing and implementing an exchange currency feature from scratch for games in real-time.2. Increased verified users by 3% by designing and implementing a caching layer with Redis for uploaded documents.3. Decreased search time by 20% by modifying indexes in PostgreSQL.4. Prepared, modernised and integrated the monolith application to the Kubernetes cluster; provided horizontal scalability and increased fault tolerance and availability.5. Increased security of the application by adding a code linter and a security auto checker of third-party dependencies; prevented vulnerable versions of third-party libraries.6. Interviewed 150+ candidates and selected top developers to double size of development team.

North Bethesda, Maryland, Us

1. Decreasing page loads for all end-users by 30% by integrating a CDN.2. Sped up content loading by 20% by analyzing and correcting indexes on PostgreSQL3. Increased the number of end-users by 5% by designing, developing and implementing a lead generation tool with Ruby.4. Introduced and implemented an anonymous user for approving iOS applications in Apple Store in Rails monolith application to allow clients to receive updates.5. Increased delivery quality by optimizing and increasing the number of tests by 5% using RSpec.

Berlin, Berlin, De

The affiliate marketing softwarehttps://quints.io/1. Unified the application and refactored Dockerfile and Docker-compose; decreased costs of developing by 40%.2. Increased availability by 5% by adding a system for preventing DDoS attacks.3. Introduced profiling tools for optimization of SQL requests; increased report generating by 5%.

Berlin, Berlin, De

Mokka is an installment purchase service in Russia, Poland, Romania and Bulgaria with 12M+ clients.https://mokka.ru/1. Increased system availability for clients by 10% by developing a service-based application for clients.2. Sped up API maintenance by 30% by combining disparate APIs.3. Decreased the number of dishonest clients by 15% by refactoring and improved credit calculations.4. Increased the number of clients by 15% by integrating a loan broker.

In the beginner part of my career, I worked with many customers.There were:1. An aggregator restaurants startup (own admin panel on React and Grape framework on the back-end)2. An application for queueing people in the government organization (created a scheduling system, DevOps part)3. Others (worked with many external APIs, set deploy process, basic set servers, background jobs, etc.)