Wefunder

#1 Helping Wefunder to build the next-generation payments processing and reconciliation platform. 

#2 Designed and implemented a CI/CD automation pipeline based on Terraform and GitHub Actions for several client-facing Scala/React applications hosted on AWS.

# 3 Everything related to the payments flow, funds' reconciliation/attribution, and post-funding finalization.

# 4 Everything related to the cloud infrastructure (AWS): setup, support, and costs optimization.

Technologies:  
- Scala: ZIO 2, doobie, quill, caliban
- Ruby
- Typescript, React.
- AWS w/ Terraform.

Software Engineer - Scala

Simple Machines

Working with one of the two biggest insurance groups in Australia on improving their business intelligence by supporting real-time multi-source data acquisition and processing based on Kafka, Spark, HCP and Greenplum platforms.

Participated in two ETL projects: one based on the real-time data processing enabled by Kafka and Spark Streaming with the other one developed around a more traditional daily batching approach supported by Airflow and PySpark running inside Kubernetes cluster.

Technologies:
- Scala 
- Kafka, Kafka Streams
- Spark
- Greenplum, HCP
- Kubernetes 
- Airflow

Principal Consultant - Data Engineering

Australian Community Media

Leading the publishing platform development for Australian Community Media (ACM) as a part of the agile cross-functional team. 
- Leading a cross-functional agile team 
- Interviewing prospective Scala candidates
- Participation in product features development (Scala / React)
- Technological roadmaps for projects worked by the team
- Facilitation of the on-boarding process
- Providing mentorship for members of the team
- Providing guidance to stakeholders on the risks, time estimates and resources allocation  

Tech
- Scala / React / Typescript
- Publishing workflow automation based on Adobe InDesign Server 
- Heavy reliance on the AWS as a target production platform (ECS, EC2, RDS)
- Builds and deployment automation for most of the ACM products (based on Drone, Terraform, Docker/EC2)
- Use of modern technologies and approaches as a part of our development and QA process (CQRS, Event sourcing, Domain-driven Design, Cypress, GraphQL, functional streams based on fs2)

Technologies: fs2, doobie, cats-effect, Sangria GrapQL, Akka, Akka Streams, React, Relay

Tech Lead - Scala

Yellow New Zealand

Duties 
- Products development (distributed messaging, mobile-first applications) based on agile process
- Participation in the company open source initiative
- Code review

Frontend technologies (40%)
- ES2015 + React.js + Redux + Cordova 
- NPM/Webpack build infrastructure 
- Minor involvement in iOS development (Objective-C)

Backend technologies (60%)
- Scala: Akka 2.4 (Streams, HTTP, Persistence), Play 2.5, Slick, GremlinScala(Tinkerpop)
- Postgres / OrientDB
- ElasticSearch
- eJabberd XMPP

Infrastructure experience:
- Amazon AWS: EC2, SNS, S3
- Docker

Architect Developer

iDecide

Duties
-  Participation in the project backend development (Scala/Akka/Spray/OrientDB)
-  Partially involved in client­ side development (Cordova) using Scala.js and reactive programming concepts

Achievements

Implementation of the fast, reliable and highly ­flexible backend solution which helps to minimize the time required to build custom EDMS platform integrations (configuration for particular business cases)
­
Technologies used

-­ Backend: Scala + SBT, Akka / Akka Persistence / Slick / Spray, Websocket API

­- Frontend: Gulp, Scala.js + Cordova

- Websocket API, File API

Senior Software Engineer

A5000 Event Solutions

A platform for event participants accreditation.
Duties
- 70% time spent on actual programming (Java 8, GWT, etc.)
- Managing a team of 5 developers
- Support and development of a system legacy code
- Technical documentation writing & processes planning
- Requirements specification for a company on-going development processes according to business goals

Achievements
- Box edition of company ERP-like platform which provides an ability to operate with participants dataset
- Product licensing & copyright enforcement infrastructure
- An extensible platform created to help the company to provide its clients with an optimal solution based on their needs and requirements
- Multiple events held since I joined the company (World Petroleum Congress 2014, OpenInnovations 2013/2014, Urban Forum, etc.)

Technologies 
- Java 8 & Maven (code generation, continuous, Integration) & - Spring Framework / Hibernate 4.x / JPA 2.1 
- JetBrains TeamCity 
- JavaFX - used to built the end-user terminal application
- iText 5 - as an effective PDF generation toolkit (e-tickets, badges, reporting, etc.)
- Android API 18 - platform for applications helps registration staff to check participants invitations & badges with help and security purposes
- MySQL 5.6 / Oracle 11g 
- jqPlot / Google Charts - to visualize platform statistical data 
- Custom tailored ProGuard 5.0 based solution to force source code obfuscation & binary runtime protection
- Software Licensing engine (C++/Java)

Head of Software Development

INNOVATION LABORATORY LLC

Duties
- Features development
- Requirements & Architectural specifications
- Managing a geographically distributed development team of 5 developers
- Hiring for positions "Flex Developer" and "Java Backend Developer" 


Achievements
- Implemented the main proof-of-concept backend prototype based on Java, C++ and microservice architecture
- Backend user interface based on GWT/GWTP 2.5 
- Agile management approach has been introduced and completely integrated for all project activities

Software Development Lead

Open Source Technologies Ltd.

OpenSourceTechnologies Ltd. primary area of business interests was laying in direct advertisement market. Their intents was to bring a brand new social marketing platform. It was designed in such way that would dramatically increase ROI of their clients advertisement budgets. 

Technologies used in the project:
- Java 1.7
- Spring Framework + Hibernate 
- SOA implemented on top of ActiveMQ

Senior Java Software Engineer

API LLC

Responsibilities
- Participation in the development process of company's in-house full-text search engine built on top of the Hadoop technologies stack
- Overall system code quality assurance
- Overseeing and participation in the development of computational cluster management solution (deployment, backups, configuration, etc.) 
- Scripting language created to provide end-users with a tasks automation tool (LL1; LISP-like; JVM)
- Model-driven UI framework

Managerial responsibilities
- Interviewing candidates for the "Java Software Developer" position

Cambala Group

Responsibilities: 
- Participation and then overseeing the development of a real-time media content 
delivery platform (H.264)
- Managing a team of 2 backend and 1 frontend developers

Technologies:
- Backend: Java 1.6 + PHP 5.2 / Spring Framework / Quartz Scheduler / ActiveMQ
- Frontend: Adobe Flex 3
- External: MySQL; Red5 Server (RTMP; h.264); OpenFire XMPP

Java Software Engineer

I am a full-stack software engineer with an interest in fintech, product development, technical leadership, and data engineering.

Extensive experience developing fintech products for investment and insurance domains. 

Primary areas of interest:
- Engineering leadership 
- Functional programming
- Distributed systems
- Small engineering teams, startups
- CI/CD automation, cloud platforms, AWS
- Full-stack software development 

Languages proficiency: 
Scala, Java, TypeScript, Haskell 

Big Data
- Spark: Structured Streaming, Delta Lake
- Kafka / Kafka Streams / Kafka Connect
- Airflow

Scala (9+ years)            
- Typelevel: fs2 / сats / doobie / http4s 
- ZIO: ZIO 2, Quill, HTTP, Caliban, 
- Sangria Relay
- Akka / Akka HTTP / Akka Streams
- Kafka / Kafka Streams
- testcontainers
           
Frontend (12 years)
- Typescript 
- React / React Native 

AWS: Terraform, CloudFormation, ELB/EC2, ECS, RDS, SNS/SQS

VCS: Git

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