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Senior Software Engineer (HR)

Company Description

Our mission as a company providing IT services is to provide our clients all over the world with the best solutions. We manage to do this by analyzing the needs of our clients and matching them to the skills and aspirations of our employees. Therefore, one of our main motivations is to provide each Employee and Consultant with a satisfying experience. Joining us means being part of a community with diverse personalities. Start your adventure with ALTER SOLUTIONS!

Job Description

  • We are looking for a motivated Senior Software Engineer to join our international team.
  • In this role you will design, build, and deliver applications powering the platform used by our customers every day. Working in an Agile environment, you will cooperate with Product Managers, Business Analysts and QAs on daily basis to support our applications and implement new functionality.

Qualifications

  • 5+ experience with Java.
  • Good knowledge of Object-Oriented Principles and Design Patterns.
  • Experience with building RESTful services in Spring Boot.
  • Good knowledge of SQL, exposure to Hibernate/JPA/Spring JDBC.
  • Ability to design and optimize systems for scalability and performance.
  • Understanding of multi-threading and concurrency.
  • Experience using standard software development tools (e.g. IntelliJ, JUnit, JMeter, Maven, Jenkins, Git, Jira)..
  • Network protocols understanding; Unix user level skills.
  • Ability to lead the delivery of technical projects. 
  • Excellent communication skills; problem solving mindset; collaborative approach, can-do attitude.
  • Bachelor’s or Master’s degree in Computer Science or equivalent technical field.
  • Certifications in Java or Cloud are a plus.
  • English min B2.
  • Polish language is mandatory.

Nice to have

  • Experience with non-SQL databases (e.g. MongoDB) is a plus.
  • Cloud (Azure, AWS or GCP) insight, containerization (Docker, Kubernetes).
  • Practice in a multi-tier, async, distributed architecture environment is a plus.
  • Exposure to streaming queues like Kafka or RabbitMQ.

Additional Information

  • Work model: Hybrid from Katowice
  • Type of contract: B2B
  • Rate: up to 180 PLN/H net + VAT
  • Start: ASAP
  • Project: Longterm

We offer

  • Access to local and international projects - Clients from France, Germany, Portugal, UK, and Benelux.
  • Professional development support - trainings, technical certificates, conference participation, foreign language classes, and soft skills trainings are subsidized for up to 2 000 PLN.
  • Bonus for recommending Candidates starting from 6 000 up to 10000 PLN.
  • Fully paid Medicover healthcare card.
  • Psychological support program WellBee.
  • Multisport card.
  • Regular integration events and gifts.
  • Long-term cooperation.
  • Relocation Program.

If You applied for this position the Controller of your personal will be  ALTER SOLUTIONS POLSKA Sp. z o.o., with its registered office at Przyokopowa 31, 01-208 Warsaw. The personal data provided by you will be processed for the purpose of the recruitment process and for future recruitment processes. You will have the right too choose one or both options on next page.

You have the right to access the content of your data, request their rectification, erasure, restriction of processing, the right to data portability, the right to object to the processing of your data and the right to lodge a complaint to the President of the Personal Data Protection Office.

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Average salary estimate

$43010 / YEARLY (est.)
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$37470K
$48550K

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What You Should Know About Senior Software Engineer (HR), Alter Solutions

Join ALTER SOLUTIONS as a Senior Software Engineer in the vibrant city of Warsaw, Poland! We're on a mission to deliver top-notch IT services globally, and we’re excited to invite someone like you to help us achieve that. In this role, you’ll play a crucial part in designing and building applications that power the platforms our customers rely on daily. As part of an international team, you'll thrive in an Agile environment, collaborating closely with Product Managers, Business Analysts, and Quality Assurance professionals. Your technical expertise in Java, Object-Oriented Principles, and building RESTful services with Spring Boot will help you implement new functionalities and support existing applications. If you're passionate about designing scalable and performant systems and have strong communication skills that foster collaboration, then this is the perfect place for you! With us, you’ll not only tackle interesting challenges but also enjoy access to international projects, professional development support, and various employee benefits. Your journey in tech with ALTER SOLUTIONS starts here; come be a part of something amazing!

Frequently Asked Questions (FAQs) for Senior Software Engineer (HR) Role at Alter Solutions
What are the key responsibilities of the Senior Software Engineer role at ALTER SOLUTIONS?

As a Senior Software Engineer at ALTER SOLUTIONS, you'll be responsible for designing, building, and delivering applications that power our customer platforms. Your daily tasks will include collaborating with Product Managers, Business Analysts, and QA teams in an Agile setting to implement new features and troubleshoot existing applications.

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What qualifications are required for the Senior Software Engineer position at ALTER SOLUTIONS?

To succeed in the Senior Software Engineer role at ALTER SOLUTIONS, you need to have at least 5 years of experience with Java, a solid understanding of Object-Oriented Principles and Design Patterns, and experience in building RESTful services using Spring Boot. You should also be proficient in SQL and have exposure to key technologies such as Hibernate, JPA, and Spring JDBC.

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How does the work culture at ALTER SOLUTIONS support Senior Software Engineers?

At ALTER SOLUTIONS, we value a collaborative and inclusive work culture, which is essential for our Senior Software Engineers. You’ll engage in regular integration events and benefit from our professional development support, which includes training, certifications, and soft skills training, fostering continuous growth and a positive work environment.

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What career growth opportunities exist for a Senior Software Engineer at ALTER SOLUTIONS?

ALTER SOLUTIONS is committed to the career development of our Senior Software Engineers. You will have access to various local and international projects, along with opportunities for professional certifications and participation in conferences, all aimed at enhancing your career trajectory in the tech industry.

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What additional skills can benefit a Senior Software Engineer at ALTER SOLUTIONS?

While the primary requirements for the Senior Software Engineer role at ALTER SOLUTIONS include Java expertise and experience in building applications, having skills in cloud integration (Azure, AWS, or GCP), familiarity with non-SQL databases like MongoDB, and knowledge of containerization tools such as Docker and Kubernetes will certainly give you an edge and enhance your contributions to our projects.

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Common Interview Questions for Senior Software Engineer (HR)
How do you approach designing scalable applications as a Senior Software Engineer?

When designing scalable applications, I start by understanding the requirements and projections for growth. I focus on modular architecture and make use of design patterns that facilitate scalability. Utilizing cloud services for load balancing and adopting asynchronous messaging systems also plays a key role in ensuring the application can grow without performance bottlenecks.

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Can you explain Object-Oriented Principles and how they apply to software development?

Object-Oriented Principles, including encapsulation, abstraction, inheritance, and polymorphism, are fundamental to creating maintainable and reusable code. They allow developers to model real-world entities and interactions within their software, improving both the organization and scalability of the applications.

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What experience do you have with RESTful services and how do you ensure their efficiency?

I have extensive experience in creating RESTful services using Spring Boot. To ensure their efficiency, I follow best practices such as proper endpoint design, effective data retrieval techniques, and implementing caching strategies. I also conduct regular performance testing to identify bottlenecks and optimize response times.

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How do you manage version control in your software projects?

I utilize Git for version control and follow a branching strategy that promotes collaboration and minimizes conflicts, such as Git Flow or Feature Branching. This allows for seamless integration of features while ensuring that the main branch remains stable and deployable.

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Describe a challenging problem you've solved as a Senior Software Engineer.

In a previous role, I faced performance issues due to high traffic loads. I analyzed the bottlenecks, refactored critical services to use asynchronous processing, and implemented load balancing. This not only improved performance but also enhanced user experiences during peak times.

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What tools do you use for software testing, and why are they important?

I use a combination of tools such as JUnit for unit testing, JMeter for performance testing, and Jenkins for continuous integration. These tools are crucial because they ensure that code changes don’t introduce new bugs, thus maintaining high software quality and enabling rapid and reliable deployment.

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How do you handle collaborating with non-technical team members in a project?

Effective communication is key when collaborating with non-technical team members. I ensure to present information in a clear and relatable manner, using visuals or analogies when appropriate. Regular check-ins and updates keep everyone on the same page and ensure we align on project goals.

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What is your experience with Agile methodologies?

I have been part of Agile teams for several years, actively participating in sprints, stand-ups, and retrospective meetings. I find Agile methodologies highly effective for fostering team communication and allowing for flexibility and rapid iterations of project deliverables.

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Can you explain your understanding of multi-threading and concurrency?

My understanding of multi-threading and concurrency revolves around managing the execution of processes that can run simultaneously. This means utilizing shared resources efficiently, avoiding race conditions, and focusing on synchronization principles to ensure thread safety.

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Why do you want to work as a Senior Software Engineer at ALTER SOLUTIONS?

I am drawn to ALTER SOLUTIONS because of its commitment to delivering high-quality IT services and fostering employee growth. I admire the international aspect of the projects and the collaborative, innovative atmosphere which aligns perfectly with my aspirations and professional values.

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The Alter Solutions Group is an IT Consultancy group, promoter of Digital Transformation, created in 2006, in Paris. In 2022, Alter Solutions joined the act digital group, constituting a global community of talent in Technology, with presence in...

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DATE POSTED
April 12, 2025

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