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Sergei Gardner

PHP Backend developer

Works remotely from London

  • 51.509648
  • -0.099076
  • Suggested rate £650 / day
  • Experience 7+ years
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This freelancer is available full-time but hasn't confirmed their availability in over 7 days.

Propose a project The project will begin once you accept Sergei's quote.

Location and workplace preferences

London, England, United Kingdom
Remote only
Primarily works remotely


Freelancer code of conduct signed
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Verified email


  • Russian

    Native or bilingual

  • English



Skills (7)

Sergei in a few words

I introduced and implemented Docker for each project of my company. Finally, we had scalable, independent projects' nodes with a number amount of replicas. Also I became one of the leading developers who wanted to change the company's workflow to a document driven development. in the future it let the company to do each task faster than now. I have experience with creating the company's libraries for Composer. working with gitlab CI/CD, Apache Kafka and Avro for exchanging and confirming messages. implementing ApplePay on sites. etc.



Senior Backend Developer

Moscow, Russia

January 2014 - Today (8 years and 10 months)

My current employer is a luxury appliances retailer with a wide range of retail boutiques and 5 web sites used for online sales. Backend Development Team supports online sales business process. I am TeamLead of Backend Development Team since 2021. My main responsibilities include:
- Managing backend development team and projects (decomposing tasks, estimating time, code review)
- Troubleshooting
- Creating new architecture i.e. how many products should a project include, their end-points and how data would be exchanged between them
- Hiring and mentoring Prior to becoming team lead I spent 3 years as Web Developer (2014-2017) and 5 years as Senior Backend Developer (2017-2021). During that time I:
- Became expert in business processes of the company
- Created backend of multiple web sites using Yii2 (Advanced template)
- On-boarded and coached new team members
- Performed code review
- Created feeds for Google, Facebook and Yandex
- Performed SEO optimisation
- Created site layout
- Integrated payment systems to web site (card, credit, ApplePay/GooglePay)



Moscow, Russia

February 2013 - January 2014 (11 months)

FirstBIT is a web studio with a number of telecommunication, media and retail clients. This web studio was using Bitrix as a main framework. As a web developer I used RESTful API, worked with XML, created standalone soap server.


Web-programmer, Head of support

Moscow, Russia

February 2012 - February 2013 (1 year)

QSOFT is a web studio. As a web developer I supported e-shop project, web sites of a bank and an exhibition center. I created request form for the bank with a number of fields and options, designed relations and processes between the fields and client behaviours. In September 2012 I was promoted to Head of support team. I managed the team, shared expertise, collaborated with QA team, presented idea, communicated with clients and hired new members to the team.