Back End Engineer

3 days ago


Kraków, Czech Republic LotusFlare Full time

We are looking for developers that you'd be willing to switch to our tech stack Scala/Lua / Typescript from any other JVM Language (Java is preferred).

Hybrid 
Office location: Krakow, Aleja Pokoju 18 
3 times per week at the office 

This position is open to candidates across various seniority levels, from Strong Junior to Senior.
The final salary offer will be based on the results of the technical interview.

REQUIREMENTS:

  • BA/BS in Computer Science or related technical field is a must
  • 2+ years of work experience, including programming experience in Java/ any JVM language / PHP / C++ / Scala/ Lua
  • 2+ years of experience building secure scalable web services
  • Experience with distributed systems
  • Experience with RESTful services
  • Good understanding of network stack and HTTP protocol
  • Experience with concurrency, multithreading, or asynchronous programming
  • Understanding of data modeling in SQL and/or NoSQL environment
  • Experience with (any combination of) AWS, Redis, Kafka and Cassandra would be a plus

LotusFlare has always been about making an impact through software products and changing industries for the better by simplifying technology so as to simplify customer experience. Founded by the team that helped Facebook reach over one billion mobile users, LotusFlare was born out of a vision to make the mobile internet accessible and affordable to people in parts of the world who often did not have access. 

From this initial work, LotusFlare’s mission now is to design, build and continuously advance a cloud-native digital commerce and monetization platform that simplifies technology and customer experience to deliver valuable outcomes to enterprises. This platform provides the software product foundation for the company’s main offering, the LotusFlare Digital Network Operator® Cloud.  LotusFlare DNO™ Cloud is a digital commerce and monetization managed service that serves as a digital BSS to deliver valuable business outcomes for communications and media services providers.

POSITION SUMMARY:

As a Software Engineer within our Server Engineering team, you will work collaboratively with the engineering team as well as Mobile Operator’s to help build network stack to support millions of users. You come from a system or development background (or are comfortable in both areas). You are self-directed and have the ability to track solutions from design through implementation, owning every step along the way. 

WE OFFER:

  • Flexible schedule with a possibility to work from home;
  • Yearly bonus;
  • Paid Lunches;
  • Private Medical Insurance;
  • Company covers accountant assistance expenses;
  • ZUS Coverage;
  • Paid sick leaves;
  • 21 working days of vacation, public holidays;
  • Trainings and workshops.

LotusFlare employees join and remain at LotusFlare for two simple reasons. First, they can see immediately that their work makes a positive impact for LotusFlare customers and, secondly, that they grow on a personal level by developing best practice and experience in cloud-native enterprise software.  LotusFlare Founder and CEO Sam Gadodia believes that if you want to make an impact and change industries for the better, you should consider joining LotusFlare. 

LotusFlare looks for people all around the world who are passionate in their aim to make an impact and change industries for the better by simplifying technology.  Headquartered in the heart of Silicon Valley with offices in EMEA and APAC, LotusFlare serves Verizon, Globe Telecom, MPIC, Digi, DISH Networks, Permata Bank, Singtel, Digicel, Supercell and other leading enterprises around the world.

,[We've developed a platform that integrates with mobile client side library and apps along with mobile network carrier systems. The Server Engineer would be responsible for further developing, securing, and scaling the backend infrastructure to support the platform in order to handle millions of concurrent API calls.] Requirements: Java, JVM, PHP, C++, Scala, Web services, REST API, HTTP, Multithreading, NoSQL, Node.js, Golang, Python, Kafka, Cassandra, BS, AWS, Redis, Data modeling Additionally: Annual bonus, Lunch card, Yearly bonus, Private Medical Insurance, Assistance expenses, ZUS Coverage, Unlimited sick leaves, 21 working days of vacation, Public holidays, Trainings and workshops, Free coffee, Canteen, Free snacks, Free lunch, Modern office, Startup atmosphere.

  • Kraków, Lesser Poland, Czech Republic beBeeSoftware Full time 40,000 - 50,000

    Senior Fullstack Software EngineerWe are seeking a skilled professional to design, implement and maintain end-to-end features across our front-end and back-end systems.The ideal candidate will have a strong background in software engineering, excellent communication skills, and a passion for mentoring and leading junior engineers.Key...


  • Kraków, Lesser Poland, Czech Republic HSBC Technology Poland Full time

    What you need to have to succeed in this roleProven experience as a Senior Automation Test Engineer or similar role with strong knowledge of Java and experience with Selenium WebDriver.Experience in manual testing and creating detailed test cases as well as familiarity with testing mobile applications and push notification systems.Solid understanding of...


  • Kraków, Czech Republic HSBC Technology Poland Full time

    What you need to have to succeed in this role Proven experience as a Senior Automation Test Engineer or similar role with strong knowledge of Java and experience with Selenium WebDriver. Experience in manual testing and creating detailed test cases as well as familiarity with testing mobile applications and push notification systems. Solid understanding of...


  • Warszawa, Kraków, Czech Republic beBeeSoftware Full time 720,000 - 1,080,000

    Job Role OverviewWe are seeking a skilled software developer to join our team.This role involves developing software as per project requirements within a multi-year defined roadmap.The ideal candidate will have a good understanding and expertise in either front-end or back-end with basic commercial experience.Main ResponsibilitiesDeveloping software...

  • AI Engineer

    7 days ago


    Remote, Kraków, Warszawa, Czech Republic Antal Full time

    Bachelor's degree in Computer Science, Engineering, or a related field.3+ years of experience as a Full Stack Developer, ideally with AI-focused projects.Proficiency in Python (back-end) and JavaScript (front-end).Strong knowledge of LLMs and GenAI: selection, tuning, embeddings.Hands-on experience with API development and integration.Practical expertise...


  • Kraków, Lesser Poland, Czech Republic beBeeFrontendDeveloper Full time

    Senior Front-end DeveloperWe are looking for a highly skilled and experienced Senior Front-end Developer to join our team. As a key member of the development team, you will be responsible for designing, developing, and maintaining front-end applications using the latest technologies.Key Responsibilities:Develop and maintain UI component libraries and...

  • Python Engineer

    4 days ago


    Remote, Kielce, Kraków, Wrocław, Czech Republic VirtusLab Full time

    What we expect in general3+ years as Backend or Fullstack EngineerAdvanced Python and FastAPI skillsExperience with PostgreSQL and GitHub ActionsFamiliarity with pandas, SQLAlchemy, Kubernetes is a plusInterest in designing and scaling web servicesB2+ English proficiency (spoken and written)Availability to work from our client's office based in Kraków from...

  • AI Engineer

    3 days ago


    Remote, Kraków, Warszawa, Czech Republic Antal Full time

    Bachelor’s degree in Computer Science, Engineering, or a related field. 3+ years of experience as a Full Stack Developer, ideally with AI-focused projects. Proficiency in Python (back-end) and JavaScript (front-end). Strong knowledge of LLMs and GenAI: selection, tuning, embeddings. Hands-on experience with API development and integration. Practical...

  • Engineering Manager

    3 days ago


    Kraków, Czech Republic HSBC Technology Poland Full time

    What you need to have to succeed in this role Extensive experience in software engineering with experience in leading technical delivery team (8 + years). Strong hands-on skills in programming in modern Java language on back-end with HTTPS, RESTful API, micro-services on Cloud infrastructure. Experience and strong skills in delivering back-end system with...


  • Remote, Kraków, Warszawa, Czech Republic beBeeEngineer Full time €90,000 - €110,000

    Transforming Intelligent Software">We are looking for a highly skilled engineer who can blend software engineering with advanced machine learning knowledge, focusing on delivering AI-powered solutions that are intuitive, scalable, and impactful.">Key Responsibilities">Model Integration & API Development:">Develop well-designed, efficient APIs to embed LLMs...