Senior Fullstack Engineer (Golang + PHP + React.js) - Freelance

Posted 12 Days Ago
Be an Early Applicant
Hiring Remotely in Poland
Remote
38-38 Hourly
Senior level
Information Technology • Software • Design
The Role
The Senior Fullstack Engineer will lead the migration of identity solutions from AWS Cognito to Auth0, focusing on technical execution and planning.
Summary Generated by Built In

Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted.

For our client we are looking for a Senior Fullstack Engineer with Golang, PHP and React.js.

Start date: 01.04.2026

End date: 27.09.2026

Full-time

100% remote

CET working hours

Rate: up to 37.5€/h

Scope of the project:

A critical, high-visibility CIAM (Customer Identity and Access Management) migration project. The role involves migrating the core identity solution from AWS Cognito to Auth0. The contractor will join the Identity stream to support technical execution, planning, and legacy stack migration.


Requirements

Must-have:

  • Fluent English (at least B2)
  • React.js
  • Golang (Go)
  • PHP (modern and legacy versions)
  • Working with Legacy Monolith Architectures combined in production environments
  • Identity Experience - CIAM solutions, specifically
  • Auth0 and AWS Cognito (proven experience with at least one, familiarity with the other is a significant plus)
  • Architectural Focus - Experience migrating services/functionality between legacy monoliths (PHP) and modern microservices (Golang)

Nice-to-have:

  • Ability to navigate complex, multi-stakeholder discussions and present technical findings clearly to both engineering peers and non-technical partners.
  • Strong analytical capabilities to quickly understand complex system dependencies, legacy code, and integration requirements.
  • Awareness of project impact on internal and external stakeholders.
  • Understanding of user experience (UX) implications related to identity changes (e.g., login flows, password resets, registration).
  • Proven ability to deliver high-quality work under tight deadlines and in a high-pressure environment.

BenefitsIn return, we offer:
  • 100% remote, flexible work.
  • Work with an experienced team of developers and continuous development of your hard and soft skills.
  • Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes.

What will happen next?

  • We would like to know you better, so we will invite you for a meeting with our recruiter.
  • If everything goes well, you will meet the client at the online interviews.

Looking for a full-time job? Check out our Career Page and find out more about our open recruitment processes.

If you need any disability-related adaptation at any step of the recruitment process – simply let the recruiter know! We'd be happy to help.

Top Skills

Auth0
Aws Cognito
Go
PHP
React
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The Company
HQ: Poznań
501 Employees
Year Founded: 2008

What We Do

Netguru is a digital acceleration consultancy founded in 2008. Netguru builds digital products that let people do things differently – offering digital acceleration tools, resources and know-how to companies of all shapes and sizes – to make beautifully designed digital products in a way that’s fast and fits their needs. Netguru provides consulting services in product development, creating software solutions, and product design. Since our founding in 2008, our team has completed more than 1000 projects and has 500+ people on board working from all over the world. Currently, Netguru collaborates with the largest brands in the world, such as UBS, Merck, Volkswagen, IKEA, and Keller Williams, as well as fast-growing innovators in the financial (Solaris), education (Babbel) or robotics (Temi) industries. Netguru has been recognized as one of the fastest-growing companies in Europe. Our company was featured in the prestigious Deloitte’s Technology Fast 50 (four times) and in The FT 1000 list in 2017, 2018, 2019, and 2022. We're a certified B Corporation since 2020. Netguru was also recognized among the Best Workplaces, Poland in the 2021 edition of the Great Place To Work® listing. Connect with us to keep up to date with news from Netguru and follow the latest trends in our industry.

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