Hi, I'm Nikolai Zujev

Software & cloud engineer with managerial & other skills

Location:        Berlin, Germany

Citizenship:    Estonian (EU)

E-mail:             nikolai.zujev@gmail.com

Known as:       jaymecd (/ˈdʒeɪ·mek·dɪ/)

About me

Software and cloud engineer (not DevOps) with a broad range of experience, but not limited to:
• creating backend software solutions & tooling
• building cloud-based systems and platforms
• leading cross-functional development team
• discovering domain models with business team

Flexible and committed individual with good communication and excellent troubleshooting skills.

Capable of quickly adapting to changing environments and leading a development team.

All time learner, eventual open-source project contributor.

Basic principles I adhere:
• DevOps is not a role, rather a responsibility
• take care of your team and help to upskill
• pick a right tool to solve an exact problem
• domain-centric software development
• convert unknown to known with #DDD & #NoEstimates

Follow me

  LinkedIn:     linkedin.com/in/jaymecd

  GitHub:        github.com/jaymecd

  Twitter:        @nikolaizujev

  DEV:            dev.to/jaymecd


Sep 2020 - ...

Cloudreach GmbH (Germany, Berlin) - senior cloud systems developer/techlead

Cloud consultancy. Deep hands-on on technical delivery and automation of customer projects. Strong focus on security aspect of infrastructure and software implementations, as well as following best practices.
Mentoring and leading project team as techlead.

AWS, Python, Golang, Typescript, security, CI/CD pipelines, human skills & etc...

Mar 2018 - Aug 2020

Cloudreach GmbH (Germany, Berlin) - cloud systems developer

Cloud consultancy. Deep hands-on on technical delivery and automation of customer projects. Strong focus on security aspect of infrastructure and software implementations, as well as following best practices.

AWS, Python, security, CI/CD pipelines & etc...

Jun 2017 - Feb 2018

Lykon GmbH (Germany, Berlin) - lead software engineer

Healthcare. Backend development with DevOps attitude.
Containerised local/test development. Migrated IT infrastructure from on-premise datacenter to AWS using Terraform and Packer, immutable system as much as possible.

AWS, terraform, PHP, shell, containers, docker, agile, golang & etc...

Jan 2016 - May 2017

Foodpanda GmbH [Delivery Hero] (Germany, Berlin) - lead software engineer

Responsible for development and delivery of customer facing products: public APIs, frontend, payment system intagrations. Coordinating and mentoring cross-functional team of 10 people. Negotiations with internal stakeholders.
Occasional advocate for DDD, CQRS/ES & Golang.

Symfony2/3, TDD, AWS, SOA, microservices, docker, agile, DDD, golang & etc...

Nov 2014 - Dec 2015

Freudeschenken AG (Germany, Berlin) - CTO

Responsible for development strategy & technologies to run distributed, scalable and highly available backend on AWS VPC for mobile applications.

Introducing microservice concept to have more control on separated parts of growing system. Supervising and mentoring development team.

Feb 2013 - Oct 2014

Freudeschenken AG (Germany, Berlin) - architect, lead software developer

Backend/API architect, DDD/CQRS/ES promoter, DevOps & infrastructure.
Symfony2 framework, Capistrano, AWS, SQL, NoSQL, Web-Services & etc...

Nov 2012 - Feb 2013

Digital Performance GmbH (Germany, Berlin) - senior web developer

Was responsible for launch multicountry e-commerce platform for seasonal sales.

Magento, Zend framework, Javascript, Web-Services.

May 2012 - Nov 2012

Rocket Internet GmbH (Germany, Berlin) - senior PHP developer

E-commerce backend team (mobile payments), highload and horizontal scalable application development.
Zend framework, MySQL, Couchbase, Web-Services, TDD

Nov 2011 - May 2012

Social Point S.L. (Spain, Barcelona) - senior PHP analyst

Social network games development, co-author of new Symfony2 based backend platform and javascript library.

Symfony2 framework, MySQL, Javascript, Web services, AWS, Statistics, QA.

Jan 2011 - Nov 2011

Cataweb Online S.L. (Spain, Barcelona) - senior PHP developer

Development of backend API modules and frontend consumers.

Zend framework, Symfony components, MySQL, Javascript

Oct 2008 - Dec 2010

ISSIMedia S.L.U. (Spain, Barcelona) - senior PHP developer

Online Payment Gateways. iPhone/iPad WebApp development.

Javascript cross-browser interfaces.

Back-End & Billing Systems, QA, managing small group of developers

PHP, XML, XHTML, HTML5, CSS, JavaScript, MSSQL, SQLite, Web Services,

Apr 2006 - Sep 2008

ISS International AS (Latvia, Riga) - senior PHP developer

Internet solutions. non-disclosure agreement.

PHP, XML, JavaScript, MSSQL, web services, online payment gateways.

Mar 2005 - Dec 2005

OK.EE OU (Estonia, Tallinn) - senior software developer / IT manager

Web applications, solutions and database scheme development.
Critical security fixes. PHP, MySQL. Javascript, Shell, SMS campaigns.
IT sector management and administration.

Web-hosting servers maintenance.

Apr 2003 - Mar 2005

SOT OU (Estonia, Tallinn) - junior software engineer

Aug 2002 - Apr 2003

Info Soft Pluss OU (Estonia, Tallinn) - web developer


AWS DevOps Engineer - Professional  (Y5PFDCBJMB1Q195Y)
        2021, Sep - by Amazon Web Services (expires: 2024, Sep)

AWS Solutions Architect - Professional  (MQ3D9PXLBEEQ113R)
        2021, Feb - by Amazon Web Services (expires: 2024, Feb)

HashiCorp Certified: Terraform Associate 
        2020, Sep - by HashiCorp (expires: 2023, Sep)

Certified Generalist Software Engineer  (WzVEDrS)
        2020, Aug - by Triplebyte

Certified Kubernetes Application Developer  (LF-bpruh99725)
        2020, Jun - by CNCF [Cloud Native Computing Foundation] (expires: 2023, Jun)

Google Cloud Certified Professional Cloud Architect  (YB8mWY)
        2019, May - by Google (expires: 2023, May)

AWS Security - Specialty  (RWVF8K221211QP38)
        2018, Nov - by Amazon Web Services (expires: 2024, Nov)

AWS Solutions Architect - Associate Level  (6J611YD2BFR4Q954)
        2015, Oct - by Amazon Web Services (expires: 2024, Feb)

Symfony 2.3 Developer - Expert Level
        2013, Nov - by SensioLabs

MongoDB for Developers: M101
        2012, Dec - by 10gen

PHP 5.3 - Zend Certified Engineer   (244497091)
        2011, Nov - by Zend

Advanced training

2017 Feb

Advanced Strategic Domain-Driven Design workshop by Nick Tune, Zsófia Herendi

2016 Jul

Experiencing Domain-Driven Design workshop by Mathias Verraes

2016 Apr

Leadership skills development workshop by Philipp Karch

2015 Jun

Test Driven Domain workshop by Sebastian Bergmann


2007 - 2007

TSI Institute (Latvia, Riga) - Bachelor of Computer Science (unfinished)

software developer, project manager

2001 - 2005

IATI college (Estonia, Tallinn) - diploma (unfinished)

software developer, database administrator, hardware technic, Linux specialist


English, Russian, some German, some Spanish