Mark Sergienko

Full-Stack Developer

• 8+ years of Full-Stack JavaScript/node.js development
  
• Front-end SPA development with React.js, Redux, Redux-Saga, Webpack, Apollo, D3.js
  
• iOS / Android app development with React Native, Expo and Swift/Objective C
  
• GraphQL, RESTful or Websockets API Development and Documentation
  
• Python, PHP experience
  
• Static website generators, next.js
  
• Test driven development (Jest, mocha)
  
• HTML5, CSS3
  

Cloud Architect

• 3+ years of production Amazon Web Services (AWS) experience
  
• CloudFormation scripting (Infrastructure as Code)
  
• Datastores: DynamoDB, PostgreSQL, MySQL, MongoDB, S3, Redis, ElasticSearch.
  
• CI/CD with EC2, Containers (Docker in ECS, Fargate), Elastic Beanstalk. Load Balancing
  
• Serverless event-driven architectures (AppSync, Lambda, API Gateway, SQS, SNS)
  
• Application Security (AWS IAM, CloudTrail)
  

Development Team Lead

• Managing distributed team of developers (English, Spanish, Russian-speaking)
  
• Managing hiring and onboarding
  
• Code reviews, best practices implementation
  
• QA and client communication
  
• Project Management
  

Product Designer

• Data design and modelling
  
• Mockup prototyping w/ Sketch and other tools
  
• Familiarity with design tools
  

Technical Lead

MethodExists Inc. Calgary, AB, Remote. 2011 to 2019

Architected complex data management solutions, with a focus on reusability, ease of use. Managed full stack development. Delivery effectiveness leader. Championed Continuous Integration / Automated Deployment, Test Driven Development, Automated code quality management, Quality Assurance processes, Iterative/extreme agile delivery.

Freelance / Consultant

Calgary, AB, Remote. 2007 to 2011

Worked with variety of clients to deliver data management solutions.

Front-end Web Developer

Critical Mass, Calgary, AB 2007

HYATT.com website development and QA (JSP, HTML, CSS)

Full Stack Developer

Impello Inc. / Blackline GPS, Calgary, AB 2005 to 2007

Development and support of various client sites and backend systems (PHP, Javascript). GPS Snitch - Vehicle tracking system complete front-end development

Full Stack Developer

Webstylers Technologies Inc., Calgary, AB 2004 to 2005

Internal CMS design and development (PHP, MySQL, XML, Javascript, ext.js) Customer-relationships & technical support.

Bauman Moscow State Technical University

Computer Technology  Moscow, Russia 2001 to 2004

EventLive

An App for Live Streaming Private Events.

Designed the scalable cloud architecture for video processing. Developed React Native app with Native Swift components for Live Streaming. The app is live.

10+ years of self-driven remote work experience. Open to receiving and providing constructive feedback. Inclusive, collaborative. Always learning and sharing knowledge with others. Into Digital Marketing, Growth Hacking, Machine Learning, User Experience (UX), Product Design, CrossFit.