Alexis Peters - Freelance Team Lead Backend Applications E-Commerce

Go to Website

Stade, Germany

Experience

Jan 2022 - Dec 2023

2 years

Freelance Team Lead Backend Applications E-Commerce

The Quality Group GmbH

Built and maintained an event-driven microservice architecture around Shopify.
Technologies: PHP 8.2, Symfony, Shopify, Bref, Cloud, DevOps, AWS, SQS, EventBridge, Datadog, Docker, Containers, Kubernetes, Jira.
Documentation: Confluence, IcePanel (C4), Miro, Atlassian.
API: REST + RPC.
GitHub.
Scrum, Kanban.
Testing: PHPUnit, Prophecy; Swagger.

Jan 2022 - Dec 2022

1 year

Freelance Software Architect Cloud E-Commerce System

Foodist GmbH

Developed an e-commerce platform using commercetools and a microservice architecture.
Responsible for architecture and implementation of business logic around payments and subscriptions.
Technologies: PHP 8.2, Symfony, Shopify, Bref, Cloud, DevOps, AWS, SQS, EventBridge, Datadog, Docker, Containers, Kubernetes, Jira.
Documentation: Confluence, IcePanel (C4), Miro; Atlassian.
API: REST + RPC.
GitHub, PostgreSQL, Bash.
Scrum, Kanban.
Traefik.
Email: Mailjet.
Testing: PHPUnit, Mockery; Swagger.

Jan 2021 - Dec 2021

1 year

Freelance Lead Backend Developer White-Label Chat Backend

Movamo GmbH

Refactored a brownfield project with multiple frontends, backends, and databases.
Automated development and deployment processes.
Introduced software for quality assurance monitoring.
Prepared for cloud migration.
Trained staff in modern software development and agile methods.
Achieved metrics (DORA Metrics): 10x more frequent deployments, 35% reduced change-fail-rate, 1000% faster lead time, 2000% faster incident recovery.
Technologies: PHP 7, Laravel, PHPUnit.
Database design: MySQL, MariaDB, PostgreSQL.
Node.js, Google Vision, Google AutoML.
AWS, S3, SQS.
Bitbucket.
API: REST.
New Relic, Sentry, Jira, Scrum.
Testing: PHPUnit, Mockery, Behat, BrowserStack, Zephyr.

Jan 2020 - Dec 2020

1 year

Freelance Backend Developer

About You GmbH

Integrated fulfillment carriers into the current cloud commerce system. Event-driven multi-step orchestrated PHP processor with AWS SQS + SNS.
Integrated international parcel carriers for deliveries and returns into the internal parcel and delivery system via REST and SOAP APIs.
Developed the internal CMS backend and connected it to cloud customers.
Technologies: PHP 7, Laravel, PHPUnit, PHPStan, AWS, Bitbucket, GitLab, API: REST, SOAP, GraphQL; Sentry, New Relic.

Jan 2019 - Dec 2020

2 years

Full-Stack Developer Fleet Management System

Jungheinrich Digital Solutions (Jungheinrich AG)

Developed the fleet management system for IoT connectivity of material handling equipment.
Built microservices for a platform with micro-frontend integration and SAP data imports.
Technologies: AWS, Go, React, Node.js, Echo, Lambda, Docker, Bash, Concourse, Swagger, Artifactory, Prettier, NPM, Trivy, Terraform, Maven, TypeScript, SCSS, Nginx, Azure B2C.
Testing: Storybook, Loki, Puppeteer, Cypress.

Jan 2016 - Dec 2019

4 years

PHP Developer

Check24

Developed the health insurance comparison service.
Replaced the MVC with API-driven architecture.
Automated backend processes.
Thanks to my quick learning, I was promoted from junior to senior within 3 years.
Technologies: PHP 5–7, AngularJS, Angular 7, Puppet, MySQL, Zend Framework 2, Zend Framework 3.
Architectural design, responsive web design.
REST, RPC.
Scrum, Git, Redis, Doctrine, Composer, Vagrant, Jira, Bamboo, Bitbucket.
Onion, SOLID, clean code.
Behat, Vagrant, agile practices.

Jan 2016 - Dec 2016

1 year

Lead Developer

Two S GmbH

Developed an ERP system tailored for car dealerships.
Built and connected websites to internal RPC APIs for data exchange.
Developed APIs and integrated with external portals (mobile.de, autoscout24.de).
Quickly became the main point of contact for the web agency area thanks to my communication skills.
Technologies: PHP 5, CakePHP, jQuery, Nginx, RPC, Smarty, UX, graphic design, SVN, CSS, SMTP.

Jan 2013 - Dec 2016

4 years

IT Specialist in Application Development

HK Computerdienst GmbH

Developed software to manage a shared hosting environment.
Created internal tools for inventory and audit systems, client acquisition, database migrations, etc.
Technologies: PHP 5, Zend Framework 2, Bootstrap, CakePHP, Bash, Debian, Linux, Postman, SpamAssassin, Dovecot, MySQL, Apache, FTP, SSH.

Summary

As a software architect, consultant, and team lead, I guide software teams in planning, installation, development, and QA of their software projects, both on the infrastructure and code side.

With years of experience on international projects, I advise on digital transformation, process automation, and optimization.

My main strengths are project analysis and refactoring, where correct techniques, practices, and automations can boost performance by up to 20x (DORA Metrics for DevOps Performance).

As a professional software developer with over 10 years of experience, I support custom programming in a wide range of languages.

Using Scrum, DevOps, and Lean Enterprise practices, I lead your project team effectively to success, focusing on both technical and business correctness.

Languages

German

Native

English

Advanced

Russian

Elementary

Education

Oct 2013 - Jun 2016