Ivan Selianto

:phone-svgrepo-com_png: +375 (44) 744-99-56

:email-8-svgrepo-com_png: [email protected]

:telegram-svgrepo-com--2-png: @iselyanto

:linkedin-svgrepo-com_png: Ivan Selianto

Summary

Senior Full-Stack Developer with 5+ years of experience building scalable infrastructure for fintech, crypto systems, and trading platforms. Skilled in designing flexible microservices and low-latency infrastructures using AWS, Kubernetes, Java, and Python. Proven track record of building high-availability systems with 99.9% uptime. Open to relocation(EU/USA).

Work Experience

2020-2026 Full-stack Developer, Itransition

Cryptocurrency Exchanges Aggregator (2024-now)

• Industry: Crypto & Finance
• Description: Cryptocurrency Trading System that provides intelligent algorithms for automated trading on various cryptocurrency exchanges.
• Position: Software Developer, Project Lead
• Tools & Technologies: Java, Python, Typescript, AWS Lambda Functions, AWS Cloudwatch, AWS Step Functions, AWS SQN, AWS SQS, AWS API Gateway, Kubernetes, Helm, CI/CD, AWS DynamoDB, AWS Timestream, PostgreSQL, Vault, Redis, Docker, RabbitMQ, Grafana, Prometheus, Swagger
• Responsibilities:
  • System Architecture & Development
  • Technical Leadership & Delivery.
  • Mentoring of other team members.
  • Communication with customer and exchanges support.
  • Conducting a Demo with a presentation of new features and improvements
  • Coordinated release management processes by bridging the gap between Development and DevOps teams, ensuring seamless infrastructure updates.
• Achievements:
  • Prepared AWS environment.
  • Created flexible and scalable microservice infrastructure
  • Set Up Kubernetes Clusters
  • Achieved a 3x faster incident detection rate by implementing advanced alerting thresholds and real-time monitoring dashboards using Grafana/Prometheus/CloudWatch.
  • Implemented CI/CD for all microservices structure and optimized deployment processes across several environments, accelerating deployment duration by 2x.
  • Achieved 99.9% system availability by configuring advanced monitoring and auto-healing strategies via CloudWatch and Kubernetes.

Cryptocurrency Market Adapter (2022-2024)

• Industry: Crypto & Finance
• Description: Financial Platform that gathers market data from various exchanges and provides a unified format, centralized API, and historical data to the users.
• Position: Software Developer, Project Lead
• Tools & Technologies: Reactive Java, Python, Kubernetes, Docker, Redis, RabbitMQ, AWS.
• Responsibilities:
  • Creating project infrastructure.
  • Team Leadership & Mentorship.
  • Development new features.
  • Communication with customer and exchanges support.
• Achievements:
  • Architected and provisioned the core project infrastructure using AWS and Kubernetes, ensuring high availability and scalable deployment for 10+ microservices.
  • Engineered high-performance market data collector microservices using Reactive Java, establishing low-latency websocket/REST connections to major crypto exchanges (Binance, Kraken, OKX, Bitstamp etc).
  • Implemented comprehensive monitoring, logging, and alerting pipelines using Grafana, Prometheus, and CloudWatch, reducing issue resolution time by 50%.
  • Created AWS backup stabilization solutions that guaranteed 99.9% data consistency without interruptions (excluding exchanges' downtimes).
  • Integrated secure API key management using Vault to protect user assets across multiple exchanges.

Cryptocurrency Strategy Builder (2021-2022)

• Industry: Crypto & Finance
• Description: Fintech Solution offering people build their own custom crypto trading strategies
• Position: Software Developer
• Tools & Technologies: Java, Spring Boot, PostgreSQL, TypeScript, RabbitMQ, Redis.
• Responsibilities:
  • Architecture & Feature Engineering.
  • Deployment Management.
  • Code Quality Control.
• Achievements:
  • Reduced database load by 40% and accelerated historical market data delivery by 3x through intelligent Redis caching strategies.
  • Contributed to the migration of monolith components to a microservices-ready architecture, improving system modularity.
  • Improved overall code quality and reduced post-release defects by 25% by establishing strict code review processes and expanding test coverage.

Casino Educational Platform (2020-2021)

• Industry: Education
• Description: A vendor-based Learning Management System on a subscription basis to deliver courses, tests and certificates to its clients. Industry and casino specific training to several casinos across the North America
• Position: Software Developer
• Tools & Technologies: Java, Kotlin, Angular, PostgreSQL, Git.
• Responsibilities:
  • Full-stack feature development.
  • Cross-functional collaboration.
  • Quality Assurance & Maintenance.
• Achievements:
  • Achieved 80% test coverage across core functionality by implementing and maintaining unit and integration tests.
  • Decreased production issue rate by 25% through proactive maintenance and rapid issue resolution.
  • Refactored legacy modules, reducing technical debt by 30% and improving code readability to align with project code- and check- style.

Personal Projects

High-Frequency Orderbook Processor

• Tools & Technologies: Rust, Tokio, SBE Websockets, API exchange.
• Description: developed an ultra-low latency, zero-allocation system to ingest and process real-time crypto exchange data via binary streams (SBE). The engine achieves microsecond-level reaction times and high throughput.

Candlesticks Algorithm Discovery Engine

• Tools & Technologies: Python, Pandas, Numpy, Optuna, API exchange.
• Description: Engineered a backtesting framework designed to discover and evaluate quantitative trading strategies across historical market data.

Education

2017-2022 Engineering, Bachelor's degree, Belarusian State Technological University

Languages

English B2

Russian Native