Lead Software Engineer

  • Function
    Lead Software Engineer
  • Campus
    Sofia, Bulgarije
  • Skills
    REST APIs, Agile, Laravel, Gitlab, API’s, English, PHP, OOP, MySQL, Symfony, JavaScript

Your role

We are seeking an experienced and dedicated developer to join some of our largest

PHP projects. You will be responsible for the efficient and successful delivery of

digital projects with high coding standards.


● Lead and coordinate some of our largest PHP projects

● Ensure timely delivery of projects within our quality standards

● Communicate technical requirements and specifications to other developers,

ensuring a clear understanding of objectives

● Set high standards in coding and development of PHP applications, APIs, and

large data integrations

Your qualities and skills as Lead Software Engineer

    ● Proficiency in PHP programming language and a strong understanding of

    Object-Oriented Programming (OOP) principles

    ● Familiarity with popular PHP frameworks (e.g., Laravel, Symfony)

    ● Experience with MySQL and database management

    ● Experience with API development e.g. REST.

    ● Knowledge of front-end technologies

    ● Knowledgeable and experienced in JavaScript

    ● Proficiency in version control systems (we use GitLab).

    ● Ability to perform testing, debugging, and performance optimization.

    And a common understanding of security best practices in web application

    development as well.

    We expect your communicative skills to be high and require proficient and

    professional English in both written and spoken. You will communicate complex

    technical concepts to both technical and non-technical stakeholders.

    It's a plus if you have experience in leading development teams and experience with

    agile and waterfall methodologies.

You give us your time, your dedication and your talent. And we are very grateful for that! But what do you get in return?

Here's what you can expect from us:

  • 1800+ inspiring iO colleagues, located in Bulgaria, Belgium, the Netherlands, Sweden and Denmark
  • Hybrid working mode
  • Programs to grow and develop yourself
  • An informal and open working atmosphere
  • 26 days of annual paid leave
  • Modern office near "Mall of Sofia"
  • Additional health and dental insurance
  • Sport cards
  • Food vouchers
  • Public transport card/ fuel allowance
  • Mobile device reimbursement
  • Personal training budget and study days


Just drop by

Do we feel a match? Then we’ll take action right away. Starting with a meet & greet (face-to-face or virtually) – you know: first impressions and all that!

Discover your potential

That wasn’t too bad, was it? If we both have a good feeling about our first meeting, we’ll invite you for a short assessment to check how you can grow at iO. When and where it fits you, of course.

Meet your colleagues

There’s a bunch of people here who are very eager to meet you. The next time we talk, two of your potential coworkers will join us to discuss the results of your assessment.

Join us!

Are we all still excited? Congrats: it’s time to sign your contract! We’ll go over all the practicalities together and we’ll make sure you have everything you need to get started.

Welcome to your campus!

Whether you live in Stockholm, Amsterdam, or somewhere in the Flemish fields, there’s always a campus close to home. Find out where to get a job and what's great about campus life after college.

Summer Festival 2021
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developers developing

This is what you get from us

You’re giving us your time, dedication and your talent. And we’re very grateful for it. But what do you get in return? Here’s what to expect.

Questions about this position?

Hi! I’m Elena, Recruiter at iO, and I’m here to answer all your questions. What’s on your mind?
Elena Dobreva | iO

Apply now

Ready for an exciting career at iO? Apply using this form or through LinkedIn. We’ll contact you soon.

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