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