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Senior
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Senior Software Engineer
John Tzikas
,
London, United Kingdom
Experience
Other titles
Skills
I'm offering
Want to work with interesting people, In a competitive environment, Where amazing things happen! Hard worker with passion for technology and not only, well organised and self-motivated.
Markets
United Kingdom
Links for more
Once you have created a company account and a job, you can access the profiles links.
Industries
Language
English
Fluently
Ready for
Larger project
Ongoing relation / part-time
Available
My experience
2017 - ?
job
Staff Software Engineer - Technical Team Lead
Deliveroo.
As a Staff Engineer at Deliveroo, being responsible for fleshing out the Engineering direction of the Engineering organisation, design and architect topologies that will maximise our SLO's and provide to the business the right products at the right time. Working daily on a distributed systems
architecture with sync/async semantics, event ingestion. Responsible for mentoring and providing
guidance to other engineers/teams.
architecture with sync/async semantics, event ingestion. Responsible for mentoring and providing
guidance to other engineers/teams.
Design, Mentoring, Event, Engineering, Architecture, Software, Organization, Direction
2014 - 2016
job
Software Development Engineer II
Microsoft.
Responsible for designing, maintaining, extending various microservices that consist Yammer's
business model. Part of the messaging domain which supports Yammer's core and most critical
functionality. Working in a distributed system infra with hard SLA's and complex business logic.
Main technologies and tools: Java, Dropwizard, Maven, Ruby, Rails, Rabbitmq, Kafka, Postgresql,
Puppet, Riak, Memcached, Elastic Search, Git, various internal developed and maintained tools for
Deployment, Telemetry and Log aggregation.
business model. Part of the messaging domain which supports Yammer's core and most critical
functionality. Working in a distributed system infra with hard SLA's and complex business logic.
Main technologies and tools: Java, Dropwizard, Maven, Ruby, Rails, Rabbitmq, Kafka, Postgresql,
Puppet, Riak, Memcached, Elastic Search, Git, various internal developed and maintained tools for
Deployment, Telemetry and Log aggregation.
Java, Git, PostgreSQL, Software development, Deployment, Microservices, Kafka, RabbitMQ, Development, Software, Memcached, Search, Logic
2013 - 2014
job
Senior Software Development Engineer - Ruby
Simply Business.
Providing tools and services for dominating UK's small businesses insurance.
Main technologies and tools: Ruby, Rails, Rabbitmq, Vagrant, Puppet, Capistrano, AWS, Internal
Gems, APIs, Our own DSL, Sidekiq, MongoDB, PostgreSQL, Redis, Github, Semaphore, Airbrake,
New Relic
Main technologies and tools: Ruby, Rails, Rabbitmq, Vagrant, Puppet, Capistrano, AWS, Internal
Gems, APIs, Our own DSL, Sidekiq, MongoDB, PostgreSQL, Redis, Github, Semaphore, Airbrake,
New Relic
AWS, MongoDB, PostgreSQL, Software development, Redis, Github, RabbitMQ, Development, Insurance, Software
2013 - 2013
job
Software Development Engineer - Ruby
Global Personals.
Size of the platform 20m members and 11K partner sites.
Working in numerous projects and issues, writing specs(unit & integration), writing documentation for those fixes/apps and dealing with third party API's.
Main Technologies: RabbitMQ, Memcached, Redis, Rails, Sinara, Mysql, Sequel, NodeJS, Sphinx,
internal gems.
Working in numerous projects and issues, writing specs(unit & integration), writing documentation for those fixes/apps and dealing with third party API's.
Main Technologies: RabbitMQ, Memcached, Redis, Rails, Sinara, Mysql, Sequel, NodeJS, Sphinx,
internal gems.
Mysql, API, Writing, Software development, NodeJS, Redis, Integration, RabbitMQ, Apps, Development, Software, Memcached
2012 - 2013
job
Developer in Test
NET-A-PORTER GROUP LTD.
I am member of the test-automation team and our main purpose is to implement and automate all the regression suite. Using ruby/capybara/cucumber we are making automate
scripts for
every case that the regression sector covers. This minimize the manual test time. Also once a week
we teaching testers and not only ruby, programming, and automation in general. Finally i have
build test tools for speeding up some tasks for the IT department.
scripts for
every case that the regression sector covers. This minimize the manual test time. Also once a week
we teaching testers and not only ruby, programming, and automation in general. Finally i have
build test tools for speeding up some tasks for the IT department.
Teaching, Automation, SoMe, Test, It, Developer, UP
2011 - 2013
job
Core Web Developer
incrediblue.
I have the honor to be the first core full time developer of the incrediblue.com. We are using Ruby as a main language and Rails as a web framework. Incrediblue connect boat owners and visitors
from all around the world into one platform. Other technologies that we using are: JQuery, Heroku
deployment, git, cucumber, factories, haml, coffeescript, postgresSQL, mySql
from all around the world into one platform. Other technologies that we using are: JQuery, Heroku
deployment, git, cucumber, factories, haml, coffeescript, postgresSQL, mySql
Mysql, Jquery, Git, Deployment, Developer, Heroku, Web, Framework
2011 - 2011
job
Teaching Assistant
University of Thessaly.
Give an assistance to my Professor, who tried to pass her knowledge and ideas to 30-40
undergraduate students .Trying to answer questions from students and help them with some java
coding issues.
undergraduate students .Trying to answer questions from students and help them with some java
coding issues.
Java, Teaching, SoMe
2010 - 2011
job
Open Source developer in Open Calc Project
SourceForge.net.
I was part of a group of 9 people from around the globe, developing a web calculator using java as a main language. I was responsible for making the GUI more efficient to interact with all the different equations and calculations.
Java, Open source, Developer, Web, Calculations
My education
2006
-
2011
Magnesia Institute of Technologies
Bachelors, Computer Science
Bachelors, Computer Science
High School Florina Greece
N/a, N/a
N/a, N/a
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