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Senior Fullstack Developer (React + .NET)

Company Description

Technology is our how. And people are our why. For over two decades, we have been harnessing technology to drive meaningful change.
 
By combining world-class engineering, industry expertise and a people-centric mindset, we consult and partner with leading brands from various industries to create dynamic platforms and intelligent digital experiences that drive innovation and transform businesses.
 
From prototype to real-world impact - be part of a global shift by doing work that matters.

Job Description

Development is the largest discipline at Endava. Our developers design, build, and release software products in multiple programming languages, frameworks, and libraries. Always collaborating with cross-functional project teams, our developers are adaptable problem-solvers with a client-oriented mindset.  

As a Senior Fullstack Developer at Endava you will have participate in the activities of designing, building and documenting enterprise solutions including test development to ensure service delivery meets expectations. You will provide development expertise for both front-end and back-end systems from design to build.

Responsibilities:

  • Designs, estimates, and implements technical solutions for medium/high complexity applications.
  • Participates actively in all phases of the application development lifecycle.
  • Collaborates with various project stakeholders to provide support for clarifying requirements, processes, architecture, and priorities.
  • Recommends and promotes IT industry standards, tools, and practices (DevOps, etc.) to achieve well-engineered software products.
  • Proposes improvements and escalates risks/issues related to development activities.
  • Participates in the review of the work done by development team members.
  • Learns and applies new technologies, practices, and tools as appropriate to the project.
  • Participates in internal and external tech communities, events, etc.
  • Shares experience and knowledge gained from projects.

Qualifications

  • 6+ years of experience in software development using .NET Core versions and above.
  • 4+ years of experience in software development using React library and ecosystem using versions 17 and above.
  • Strong understanding of different common programing paradigms (OOP, Functional, etc.).
  • Strong familiarity with design/architectural patterns and clean code principles(e.g. SOLID, GoF, MVVM) .
  • Expert in relevant programming languages, frameworks and tools such as C#, Typescript/Javascript, .NET Core, ASP.NET, Entity Framework, LINQ, Visual Studio, Azure Fundamentals. Nice to have: other cloud platforms such as AWS or GCP.
  • Experience with Rx.NET for reactive programming.
  • Experience with Kafka in context of .NET solutions.
  • Experience with SignalR. Serilog and xUnit.
  • Experience with MUI control library
  • Experience in using Jest for unit tests and PlayWright for e2e tests
  • Practical experience in platform specific database systems and SQL.
  • Good understanding of version control systems like Git or similar
  • Solid experience with testing and mocking frameworks
  • Familiar with common communication protocols and standards such as HTTP, REST, JSON, TCP/IP and others.
  • Experience with Agile methodologies (e.g., SCRUM, KANBAN).
  • Knowledge of CI/CD tools and practices, specifically with GitLab CI/CD
  • Minimal knowledge of Kubernetes, Docker containers and Hashicorp Vault.
  • Good problem-solving skills and analytical thinking.
  • Excellent communication and teamwork abilities.
  • Upper-Intermediate English proficiency.

Additional Information

Discover some of the global benefits that empower our people to become the best version of themselves:

  • Finance: Competitive salary package, share plan, company performance bonuses, value-based recognition awards, referral bonus;  
  • Career Development: Career coaching, global career opportunities, non-linear career paths, internal development programmes for management and technical leadership;
  • Learning Opportunities: Complex projects, rotations, internal tech communities, training, certifications, coaching, online learning platforms subscriptions, pass-it-on sessions, workshops, conferences;
  • Work-Life Balance: Hybrid work and flexible working hours, employee assistance programme;
  • Health: Global internal wellbeing programme, access to wellbeing apps;
  • Community: Global internal tech communities, hobby clubs and interest groups, inclusion and diversity programmes, events and celebrations.

Our diversity makes us stronger - it drives meaningful change and enables us to build innovative technology solutions. We are committed to creating an inclusive community where all of us, regardless of background, identity, or personal characteristics, feels valued, respected, and free from discrimination. As an equal opportunity employer, we welcome applications from all individuals and base hiring decisions on merit, skills, qualifications, and potential.

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CEO of Endava
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John Cotterell
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Average salary estimate

$70000 / YEARLY (est.)
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$60000K
$80000K

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What You Should Know About Senior Fullstack Developer (React + .NET), Endava

Join Endava as a Senior Fullstack Developer in Łódź, Poland, where your expertise in React and .NET will play a pivotal role in shaping transformative digital solutions. With over two decades of technological innovation, we’re dedicated to creating real-world impact by harnessing our engineering prowess and people-centric ethos. At Endava, you'll not only design and implement complex applications but also actively engage throughout the entire development lifecycle. Your responsibilities will include collaborating with dedicated teams, clarifying project requirements, and advocating for industry standards like DevOps. We value adaptability, problem-solving skills, and the desire to learn, ensuring that our developers thrive in a vibrant, cross-functional environment. Here, your contributions will not just be recognized but celebrated, especially when you share your insights and experiences at our internal tech communities and events. With a commitment to fostering an inclusive culture, this is a space where everyone’s unique backgrounds blend into a powerhouse of innovation. If you’re ready to take on exciting challenges and drive meaningful change with us through technology, we can’t wait to meet you. Together, let’s build solutions that matter and embark on this global shift in tech!

Frequently Asked Questions (FAQs) for Senior Fullstack Developer (React + .NET) Role at Endava
What are the responsibilities of a Senior Fullstack Developer at Endava?

As a Senior Fullstack Developer at Endava, you will be responsible for designing, estimating, and implementing technical solutions for medium to high complexity applications. You'll actively participate in all phases of the application development lifecycle, collaborating with various stakeholders to clarify requirements and processes. This role will also involve recommending IT industry standards, promoting best practices for software engineering, reviewing team members' work, and sharing knowledge within internal tech communities.

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What qualifications are required for the Senior Fullstack Developer position at Endava?

Endava expects candidates for the Senior Fullstack Developer role to have a minimum of 6 years of experience in software development utilizing .NET Core and at least 4 years with the React library. An understanding of programming paradigms, architectural patterns, and clean code principles is essential. Additionally, experience with tools such as C#, Azure, and Agile methodologies, along with excellent communication and teamwork abilities, will be important for success in this role.

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What technologies should a Senior Fullstack Developer at Endava be familiar with?

A successful Senior Fullstack Developer at Endava should be well-versed in various technologies, including .NET Core, React (version 17 and above), ASP.NET, Entity Framework, and a strong grasp of JavaScript/TypeScript. Knowledge of cloud platforms like AWS or GCP, and familiarity with CI/CD tools such as GitLab CI/CD, Docker, and Kubernetes would be beneficial. Additionally, skills in testing frameworks and experience with SQL will be advantageous.

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How does Endava support the professional development of Senior Fullstack Developers?

Endava is committed to the professional growth of its employees, especially for Senior Fullstack Developers. The company offers comprehensive career development opportunities, such as coaching, internal development programs, and access to online learning platforms. Developers can get exposure to complex projects, attend workshops and conferences, and participate in tech communities, fostering an environment ripe for innovation and growth.

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What benefits does Endava provide to Senior Fullstack Developers?

At Endava, Senior Fullstack Developers benefit from a competitive salary package, performance bonuses, and value-based recognition awards. The company prioritizes work-life balance with flexible working hours and hybrid work options. Additionally, employees have access to wellness programs, community initiatives, and opportunities for continuous learning, making it an excellent place to grow and thrive in the tech industry.

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Common Interview Questions for Senior Fullstack Developer (React + .NET)
Can you describe your experience with .NET Core and how it has prepared you for the Senior Fullstack Developer role?

In answering this question, focus on specific projects where you utilized .NET Core, highlighting your understanding of its features and capabilities. Discuss how your experience aligns with the requirements at Endava, emphasizing your problem-solving skills and ability to design technical solutions in a collaborative environment.

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What strategies do you use to ensure clean code and best practices are followed in your projects?

When responding, share your knowledge of clean code principles and design patterns such as SOLID or GoF. Discuss specific techniques you've employed to maintain code quality, such as code reviews, unit testing, and regular refactoring sessions, demonstrating your commitment to continuous improvement.

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How do you approach collaboration within a cross-functional team?

Highlight your communication skills and adaptability. Share examples of past experiences where you successfully collaborated with diverse team members, addressing how you handle disagreements and ensure everyone's ideas are heard, ultimately leading to successful project outcomes.

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Can you give an example of a complex challenge you faced in a project and how you resolved it?

Provide a specific example that illustrates your problem-solving abilities. Detail the challenge, your analysis process, and the steps taken to reach a resolution. Use this opportunity to showcase your technical skills and teamwork, reflecting your readiness for the Senior Fullstack Developer position at Endava.

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What role does testing play in your development process?

Explain the importance of testing in achieving reliable, maintainable software. Discuss the types of testing you prioritize, such as unit, integration, or end-to-end testing, and how you use frameworks like xUnit and Jest to ensure code quality before deployment.

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Describe your experience with Agile methodologies and how it has influenced your workflow.

Share your experience with Agile frameworks such as Scrum or Kanban, focusing on roles you've played in Agile teams. Discuss how you adapt to changing requirements and the importance of iterative development in delivering high-quality software as a Senior Fullstack Developer.

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How do you stay updated with new technologies and industry trends?

Emphasize your commitment to continuous learning. Discuss the resources you use, such as online courses, tech communities, and conferences. Share how these initiatives have influenced your development practices and how you expect to bring that knowledge to your role at Endava.

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What challenges do you foresee in integrating front-end and back-end systems?

Discuss potential challenges like data flow issues, API integration, and ensuring cohesive user experiences. Talk about your strategies for addressing these challenges, highlighting your experience in both front-end and back-end development to demonstrate your fullstack capabilities.

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How do you manage and prioritize technical debt in your projects?

Explain your approach to identifying and prioritizing technical debt. Share strategies for addressing it while balancing new feature development, such as dedicating time for refactoring, involving the team in discussions about trade-offs, and promoting a culture of maintaining code quality.

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Why do you want to work as a Senior Fullstack Developer at Endava?

Share your motivations for applying, focusing on Endava’s commitment to technological innovation, professional development opportunities, and its people-centric culture. Convey your enthusiasm for contributing to meaningful projects that drive change, aligning your values with the company’s mission.

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We have built our organisation around a simple philosophy: We focus on helping people to be successful. The people who work for us, the people who engage with us, and the people who use the systems and applications we design, build and operate.

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