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Senior FullStack Developer (.NET+React)

Intellectsoft is a software development company delivering innovative solutions since 2007. We operate across North America, Latin America, the Nordic region, the UK, and Europe.We specialize in industries like Fintech, Healthcare, EdTech, Construction, Hospitality, and more, partnering with startups, mid-sized businesses, and Fortune 500 companies to drive growth and scalability. Our clients include Jaguar Motors, Universal Pictures, Harley-Davidson, Qualcomm, and London Stock Exchange.Together, our team delivers solutions that make a difference. Learn more at www.intellectsoft.net

We're seeking a driven and experienced Senior Full Stack Engineer with a strong foundation in back-end development using .NET and solid front-end skills—ideally with React. This role offers the opportunity to contribute to a high-impact project within a fast-moving team at Intellectsoft, in collaboration with a prominent client in the financial sector.

  • A degree in Computer Science, Software Engineering, or a closely related discipline.
  • 5+ years of hands-on experience developing robust backend systems with .NET technologies (C#, .NET Core, ASP.NET).
  • Solid front-end development skills using React, with a focus on efficient state management and performance tuning.
  • Strong background in cloud environments—ideally Microsoft Azure—working with services like Azure Functions, App Services, and Azure DevOps.
  • Comfortable working with a range of databases, including relational systems like SQL Server and PostgreSQL, as well as NoSQL options.
  • Proven experience designing, building, and maintaining microservices-based architectures.
  • Familiarity with CI/CD workflows and experience integrating automated testing into delivery pipelines.
  • In-depth understanding of RESTful API design and modern integration strategies.
  • Practical experience in Agile environments, collaborating via tools like Jira and Confluence.
  • Excellent English communication skills—ideally at a C1 level; strong B2 candidates will also be considered.

Nice to have skills

  • Bonus points for knowledge of other front-end frameworks like Angular or Vue.js.
  • Understanding of container technologies such as Docker and orchestration tools like Kubernetes.
  • Hands-on exposure to DevOps methodologies, including infrastructure automation using tools like Terraform or Ansible.
  • Previous involvement in developing applications within the fintech or broader financial services space is a strong asset.

Responsibilities

  • Architect, build, and support robust backend systems using .NET, with a focus on scalability, efficiency, and performance.
  • Craft responsive and maintainable user interfaces with React, ensuring smooth connectivity between the frontend and backend layers.
  • Utilize Azure-based cloud infrastructure to enhance system uptime, scalability, and overall reliability.
  • Collaborate with product owners, designers, and other engineers to translate business requirements into technical solutions.
  • Champion clean code practices, prioritizing maintainability, security, and software craftsmanship throughout the development lifecycle.
  • Guide and support fellow developers through code reviews, technical mentoring, and active knowledge sharing.
  • Play a key role in advancing DevOps efforts, streamlining build and deployment workflows through automation and CI/CD enhancements.
  • Continuously explore new technologies, tools, and techniques—bringing forward ideas to improve architecture and development processes.
  • 35 absence days per year for work-life balance
  • Udemy courses of your choice
  • English courses with native-speaker
  • Regular soft-skills trainings
  • Excellence Сenters meetups
  • Online/offline team-buildings

Average salary estimate

$100000 / YEARLY (est.)
min
max
$80000K
$120000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

What You Should Know About Senior FullStack Developer (.NET+React), Intellectsoft

Are you ready to take your career to the next level? Intellectsoft is on the lookout for a talented Senior Full Stack Developer with a flair for both .NET and React to join our dynamic team. Here at Intellectsoft, we pride ourselves on delivering cutting-edge solutions to a variety of industries including Fintech, Healthcare, and EdTech. With high-profile clients like Jaguar Motors and Universal Pictures, you'll have the chance to work on projects that truly make an impact. In this role, you will dive deep into back-end development using .NET technologies, while crafting dazzling front-end experiences with React. Our focus is on not just getting the job done, but doing it wonderfully. You will be developing robust backend systems, designing microservices-based architectures, and ensuring your code is clean and maintainable. But it’s not just about code; you’ll collaborate with product owners, designers, and fellow engineers to craft the perfect solutions. Plus, we offer opportunities for continuous learning, including Udemy courses and regular soft-skill trainings. With us, you'll never stop growing! And don’t worry about work-life balance, we offer a whopping 35 absence days. If you have 5+ years experience, excellent English communication skills, and are driven to innovate, then we want to hear from you!

Frequently Asked Questions (FAQs) for Senior FullStack Developer (.NET+React) Role at Intellectsoft
What are the main responsibilities of a Senior Full Stack Developer at Intellectsoft?

As a Senior Full Stack Developer at Intellectsoft, you will be responsible for architecting, building, and supporting robust backend systems using .NET technologies. You'll also craft responsive user interfaces with React and ensure seamless connectivity between frontend and backend. Collaborating closely with product owners and designers is key to translate business requirements into technical solutions. Your role will include championing clean code practices and guiding fellow developers through code reviews.

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What qualifications are required for the Senior Full Stack Developer position at Intellectsoft?

The Senior Full Stack Developer position at Intellectsoft requires a degree in Computer Science, Software Engineering, or a related field, along with over 5 years of hands-on experience in backend development using .NET, and solid frontend skills in React. A strong background in cloud environments such as Microsoft Azure, experience with microservices, and an understanding of RESTful API design are also essential.

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What technology stack does Intellectsoft use for the Senior Full Stack Developer role?

For the Senior Full Stack Developer role at Intellectsoft, the technology stack includes .NET (C#, .NET Core, ASP.NET) for backend development and React for frontend development. Familiarity with databases such as SQL Server, PostgreSQL, and NoSQL options is necessary, along with a strong background in cloud technologies, specifically Microsoft Azure, including services like Azure Functions and Azure DevOps.

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How does Intellectsoft support employee growth for the Senior Full Stack Developer?

Intellectsoft is committed to employee growth and development. As a Senior Full Stack Developer, you will have access to Udemy courses of your choice, proficiency in English courses with native speakers, and regular soft-skills training. We also hold meetups at our Excellence Centers and provide opportunities for team-building exercises, both online and offline.

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What benefits does Intellectsoft offer for the Senior Full Stack Developer role?

Intellectsoft offers a competitive benefits package for the Senior Full Stack Developer role, including 35 absence days per year for optimal work-life balance. You will also have opportunities for continuous professional development, flexible working conditions, and a collaborative team environment that values innovative ideas and solutions.

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Common Interview Questions for Senior FullStack Developer (.NET+React)
Can you walk me through your experience with .NET technologies?

When asked about your experience with .NET technologies, be sure to give specific examples of projects you've worked on. Highlight challenges you've faced and how you overcame them using specific .NET frameworks or tools. This not only demonstrates your technical competence but also your problem-solving skills.

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How do you manage state in a React application?

To answer this question, explain your familiarity with managing state using React's built-in state management or through libraries like Redux. Share your experiences regarding how you ensure that state is managed efficiently, such as optimizing performance for large applications or handling complex states.

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What is your experience with cloud environments, particularly Microsoft Azure?

Discuss any specific Azure services you've utilized, such as Azure Functions or App Services. Providing examples of how you leveraged cloud infrastructure to enhance scalability and reliability can showcase your practical knowledge and hands-on experience.

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What strategies do you use for ensuring clean code and maintainability?

When discussing clean code practices, mention techniques like following coding standards, conducting code reviews, and leveraging automated testing. Emphasize that maintainability is crucial, and how practices such as documenting your code and using version control play a role in this.

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How do you approach collaboration in an Agile environment?

Describe your experiences working in Agile teams, highlighting tools like Jira or Confluence that you've used for project tracking. Mention the importance of daily stand-ups, sprint planning, and retrospectives in ensuring effective communication and collaboration.

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Describe a microservices architecture you've implemented or worked with.

Provide an overview of the microservices architecture you worked on, detailing its components and how you ensured services were well-structured and scalable. Discuss any challenges you faced and how you tackled issues like service communication and data management.

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What are the main advantages of using RESTful APIs?

When answering this question, explain that RESTful APIs are stateless, scalable, and cacheable, making them efficient for web applications. You can also touch on how you have designed or consumed RESTful services in your past projects.

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What tools have you used for CI/CD, and how have they impacted your workflow?

Discuss the CI/CD tools you've used, such as Jenkins, Azure DevOps, or GitLab CI. Share how these tools streamlined your deployment process, the benefits of automated testing, and how they have improved the overall quality of code delivered.

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Can you provide an example of a challenging bug you encountered and how you resolved it?

When discussing a challenging bug, provide a clear narrative of how you identified the issue, the steps you took to diagnose and resolve it, and the impact your resolution had on the project. This will demonstrate your troubleshooting abilities and persistence.

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How do you keep up with new technologies and trends in software development?

Make sure to mention that you continuously learn through online courses, tech blogs, and attending industry meetups or conferences. Sharing how you actively implement new tools or techniques in your projects will show your commitment to ongoing professional development.

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Intellectsoft began developing mobile apps in 2007. Today, we have grown to a full-service software and mobile application development company. Intellectsoft helps enterprise organizations transform their business processes using mobile technolog...

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Full-time, remote
DATE POSTED
April 21, 2025

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