Principal Software Engineer
Spartez (an Appfire company)
Łódź, PL
6 d. temu
source : Just Join IT

Firebase (master)

Google Cloud Platform (master)

Node.js (master)

Principal Engineer at Spartez Software has a cross-team impact - you’ll be solving the most challenging (and rewarding) matters like performance and reliability of our Cloud apps, data residency and automatic cross-region data migration, and end-to-end testing.

Of course, not every day will be about re-architecting our existing products, starting a new product or saving the world .

So expect to spend a lot of time working as a part of our product teams and devote your talent to deliver features that will delight our existing customers, or create new opportunities.

You’ll work side-by-side with our strongest people (listed in order of experience, descending ) :

  • Bartek Z. - Architect, 18+ years in software development and 5+ years in Architect role. You’ll love every interaction with Bartek and be amazed how he combines technical knowledge and product (read : customer) thinking.
  • Roman L. - Head of engineering, 17+ years in IT, passionate about Cloud technologies and engineering excellence. Roman is experienced in growing leaders, and he is all about delegation and trust!
  • Grzegorz T. - Principal developer with 16+ years of real software development passion; a frequent ShipIt winner; a person behind our new product - Whiteboards (from the early idea to successful launch), a real coding machine who thinks about products holistically!
  • Team leaders :
  • Oleh Zh. - 16+ years of professional experience; calm and knowledgeable; learning and adjusting as he goes.
  • Vasilii K. - 9+ years in software development, running his own product in parallel and being adored by his team since he stepped into the TL role almost a year ago.
  • What you will do at Spartez Software :

  • Build the future - you’ll have a real impact on the roadmap and features of the existing products; you may create new opportunities using 20% time;
  • Guide teams from a concept to deliverable and improve the way we deliver;
  • Help us further develop one of our Atlassian Marketplace products! Which one? It depends on your skills, experience, passion and our current investment priorities.
  • The reality changes too quickly to set such things in stone;
  • Perform hands-on software development in a variety of technologies (see our stack below) along with the team by implementing features, automated tests, fixing bugs, and doing code reviews;
  • we don’t pigeonhole people in front-end or back-end silos;
  • Teach others how to apply architecture patterns, inject security into systems design, meet a high code quality standard, and improve their future performance - through code reviews & knowledge sharing (internal & external);
  • Contribute to the standards of operational excellence and own quality (performance, scale, rollout plans).
  • What you need to have :

  • 10+ years of hands-on experience with various front-end and back-end web technologies. Whereas we appreciate the breadth, we expect the depth even more!
  • Be a software engineer role model : nothing is impossible, it’s a matter of asking the right questions and picking the appropriate technology.
  • A proven record of complex software solutions is how we check that;
  • Strong theoretical foundations of computer science - algorithms, computational complexity, OOP. Technologies come and go, good engineering practices remain;
  • Good understanding of modern Cloud architectures , and practical experience implementing them in GCP, AWS, or Azure;
  • Deep architectural understanding of web applications , including performance , quality, and security aspects;
  • Good grasp of SQL and relational databases;
  • Command of English at level B2 or higher.
  • Our recruitment process (fully remote) :

  • Conversation with a recruiter (up to 30 mins) : you’ll find answers to your immediate questions, get to know the company, give us a chance to learn more about you, your experience, and your expectations.
  • Take-home task (expected no more than 120 minutes) : to see your coding skills.
  • Technical interview (60 mins + feedback) : to check your software engineering skills, and to show what technical skills we care about the most.
  • This is a language-agnostic interview.

  • Coding test (60 mins + feedback) : to confirm that your coding skills are as good as your theoretical knowledge. You choose a programming language for this stage.
  • Final interview (60 mins + feedback + optional job offer) : to understand your personality, values, what makes you proud, and why you can be a great member of the Appfire team!
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