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Senior PHP back-end developer (Symfony)


We are looking for a Senior PHP back-end developer who performs magic with PHP, enjoys building and supporting back-end for mobile applications and web services throughout the entire life cycle.

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Job responsibilities

  • Collaborate with team to document technical requirements and specifications.
  • Participate in technical reviews of bugs & enhancement request’s.
  • Manage and report time spent on all work activities.
  • Design and develop functional and sustainable web applications, mobile applications, marketplaces, CRM&ERP applications etc.
  • Maintain and support current projects.
  • Provide estimates, project plans and stages.
  • Define a project architecture, perform optimization, and refactoring.


  • Minimum 5 years of development experience.
  • Symphony framework, 3 year (Required), familiarity with other PHP-frameworks (Yii2, Laravel) a plus.
  • Proficiency with HTML, CSS, JavaScript and jQuery.
  • Proficiency in PHP7, OOP, design patterns.
  • Demonstrate strong technical expertise and ability to develop extensible and high-quality software.
  • Experience of building of Rest API for mobile apps and web services.
  • Experience with Swagger and/or other API documentation tools.
  • Experience and writing tests with Codeception.
  • Experience working with Docker.
  • Experience in building microservices and cloud architectures (AWS, Azure, or Google cloud).
  • Working knowledge of Git.
  • Experience working with: MySQL Databases, Mongo, Redis.
  • Strong written, technical documentation and oral communication skills.
  • Willingness to learn new technologies and approaches.

What we offer

  • Competative salary + bonuses.
  • Professional growth.

Why working at Diffco?

  • Great experience and opportunity
    You will work on the fast-forward projects in Silicon Valley utilizing latest technologies, methodologies, frameworks and approaches with the ability and time to learn and develop professionally.
  • Professional and harmonious team of friends
    Our team is a second family, so you would enjoy spending the day working on nice projects with kind people with broad interests.
  • A vast field for growth
    Learn continuously, expand your skills and demonstrate your professional level and ability to take more responsibility to grow.
  • Great company culture
    We care about you and are interested in your personal professional goals, motivation and we build a perfect work/life balance.

Let us know you better

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+1 (415) 655-1002