Sultan (0x5bjorn) logo Sultan (0x5bjorn)

Deadline-Driven Development, Hope-Based Architecture, Just-In-Time (JIT) Development, Chaos Engineering

About

Software Engineer, with the “I can figure it out” mindset and passion for low-level concepts and underlying implementations. Enthusiastic about rebuilding existing “round wheels” as “square” ones.

Interested in:

  • Tools development
  • System development, architecture and design
  • Distributed systems
  • Performance and optimization
  • Database system and internals
  • Computer architecture and Operating systems
  • Compiler/programming language
  • Simulation programming (graphics, physics, etc.)

Job Experience

DevOps & Software Engineer @ OJSC Optima Bank
February 2025 - Present
Tech stack: Docker Swarm, Gitlab CI/CD, Nginx, Java, Spring Boot, Golang, Grafana, Keycloak, Consul, Vault, Loki, Promtail
  • Docker Swarm cluster management and maintenance
  • Gitlab CI/CD configuration global refactoring
  • Nginx, Consul, Vault, Grafana, Loki, Promtail configuration and maintenance
  • Keycloak custom plugin development
  • Internal service and library development and maintenance (client certs service, config service, logger library)
Back End Developer @ OJSC Optima Bank
September 2022 - January 2024 (2 y. 5 mth.)
Tech stack: Microservices, Java, Spring Boot, PostgreSQL, GraphQL, RabbitMQ, REST APIs, Docker, Gitlab CI/CD, Grafana, Redis
  • Worked on project - Optima Business (OB), remote banking system for legal entities
  • Developed integral components of the OB (microservice architecture): business and validation rule engine service for payments, template-based document generation service, service for importing payments using 1C files, payment monitoring service, etc.
  • Contributed on the development and maintainment of the main payment service in OB project
  • Created PostgreSQL functions/stored procedures such as payment search with filters, pseudo-unique document number generation, etc.
  • Assisted in configuring and setting up early versions of Gitlab CI/CD processes
  • Assisted our DevOps engineer in maintaining and monitoring system infrastructure
  • Performed research works on topic of Electronic Digital Signature specifically Rutoken technology and Simple Certificate Enrollment Protocol(SCEP)
Full Stack Developer @ FinanceSoft
May 2022 - July 2022 (3 mth.)
Tech stack: C#, .NET Core, Typescript, Angular, MSSQL, Transact-SQL
  • Worked on projects - Loan Conveyor, Central Back Office(CBO)
  • Conducted debugging and maintenance of the existing web applications(Loan Conveyor, CBO)
  • Implemented and added new components and features to a new conveyor for a new client according to the project requirements(Loan Conveyor)
  • Performed updates of the test servers with the new project versions
Engineer in Institute of Automatics and IT @ National Academy of Sciences of Kyrgyzstan
December 2019 - May 2020 (6 mth.)
Tech stack: C/C++ with Arduino, Mosquitto, Telegraf, InfluxDB, Docker
  • Worked on the project of developing a prototype of air pollution monitoring system for Bishkek
  • Conducted market research on transceivers and sensor devices
  • Implemented early version of data management architecture using Mosquitto, Telegraf, InfluxDB, Grafana and Docker technologies
  • Implemented basic mesh network using NodeMCU devices (with ESP8266 WiFi chips) to transmit data between nodes and store it in database

Recent Training

CourseProviderYear
Certified Kubernetes Administrator (CKA)KodeKloud2026

Education

Sapienza University of Rome
2020 - 2022 (Not Completed)
MS in Engineering in Computer Science
    American University of Central Asia
    2016 - 2020
    BA in Software Engineering