Oleksandr T.
KievUkraine
100% Job Success

Senior Software Engineer / Architect

Hi, I'm Oleksandr and I'm a web-developer with the expertise in building websites and creating an architecture of complex web systems. In the last 5 years, I worked with startups and small companies and developed products that attracted first clients to them. Besides this, I improved existing projects and fixed performance and architectural issues. I worked with a lot of different cases: - designing architecture and developing projects from scratch; - integrating with existing APIs (GitHub, PayPal, Stripe, Braintree, TaoBao, etc.); - developing new APIs for existing projects; - fixing various issues; - performance optimizing, etc. I have a huge experience with Ruby, Rails, JavaScript, Python, AWS. I took part in designing and development of huge web app (with more than 50 microservices) that serves hundreds of millions of requests per day. Also, I have a huge experience with AWS (with dozens of services) that allows me to build complex and secure apps. Besides this, I have an experience with high-load, so I've worked with ElasticSearch with terabytes of data, relational databases (such as PostgreSQL and MySQL) with hundreds of gigabytes of data, clusters of Redis, apps auto-scaling. And in addition, I have an experience with solutions for big-data such as Redshift, Spark, Athena.

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Skills

  • Ruby
  • JavaScript
  • Ruby on Rails
  • Software Architecture & Design