Senior Front-End Developer

Version 1 is seeking Senior Full Stack Developers with strong expertise in C#.NET and ReactJS technologies. The ideal candidate should have a solid foundation in C#, ReactJS, HTML, CSS, and SQL, with proven experience building scalable, secure, and high-performing applications. A proactive, self-motivated individual with excellent problem-solving, debugging, and communication skills will thrive in this role.

Key Responsibilities

• Design, develop, and maintain software applications using .NET Core / .NET 6+ and ReactJS.
• Build and optimize responsive, high-performance UI components using ReactJS with Hooks, Context API, and functional components etc.
• Implement state management solutions (e.g., Redux, or React Query) for complex applications.
• Apply design principles and deliver scalable, maintainable, and secure solutions.
• Perform low-level design and create technical and functional specifications.
• Prepare architectural diagrams, workflow diagrams, prototypes using tools like Visio, Draw.io, Figma, etc.
• Integrate front-end React applications with RESTful APIs and Web APIs built on .NET Core.
• Implement form handling, validation, routing, and component-based architecture for SPAs.
• Ensure cross-browser compatibility, responsive design, accessibility (WCAG/ARIA), and UI performance optimizations.
• Write and maintain unit and integration tests for React components using Jest, React Testing Library, or Cypress.
• Work with ORM frameworks such as Entity Framework Core and Dapper.
• Develop complex Stored Procedures, Triggers, and Views in SQL Server / Azure SQL.
• Use Azure DevOps and Git for CI/CD pipelines, source control, and efficient branching/merging strategies.
• Participate in Agile ceremonies (sprint planning, daily standups, retrospectives) to ensure successful delivery.
• Conduct peer code reviews and secure code reviews, applying SAST/DAST tools to ensure application security.
• Manage deployments in Azure environments and perform application performance tuning.
• Provide guidance, mentorship, and support to junior developers.

Required Skills

• Bachelors degree in Engineering or related field, with 7+ years of professional experience.
• Proven experience developing web applications with ASP.NET Core, C#, Web API, Razor Pages, HTML, JavaScript, jQuery, and CSS.
• Strong hands-on experience building enterprise-scale ReactJS applications.
• In-depth knowledge of React Hooks, Context API, component lifecycle, virtual DOM, JSX, and event handling.
• Strong experience with state management tools such as Redux, Redux Toolkit, or React Query.
• Proficiency in unit and integration testing of React components (Jest, React Testing Library, Cypress).
• Familiarity with SPA architecture, modular component design, and micro frontends.
• Knowledge of Webpack, Babel, npm/yarn, and other build tools.
• Strong SQL expertise with experience in Stored Procedures, Triggers, and Views.
• Hands-on experience with Azure App Services, Azure Functions, Azure Container Apps, cloud deployments, and basic cloud administration.
• Experience preparing low-level designs, workflow diagrams, and documentation.
• Excellent communication skills with the ability to articulate technical concepts to diverse stakeholders.
• Flexibility to work in UK shift hours to collaborate with international teams and clients.

Desired Skills

• Microsoft Azure Developer Associate certification.
• Exposure to other front-end frameworks such as Angular or Blazor.

At Version 1, we believe in providing our employees with a comprehensive benefits package that prioritises their wellbeing, professional growth, and financial stability.

• Share in our success with our Quarterly Performance-Related Profit Share Scheme, where employees collectively benefit from a share of our company's profits.
• Strong Career Progression & mentorship coaching through our Strength in Balance & Leadership schemes with a dedicated quarterly Pathways Career Development programme.
• Flexible hybridworking mode, Version 1 is tremendously understanding of life events and peoples individual circumstances and offer flexibility to help achieve a healthy work life balance.
• Financial Wellbeing initiatives including; Pension, Private Healthcare Cover, Life Assurance, Financial advice and an Employee Discount scheme.
• Employee Wellbeing schemes including Gym Discounts, Bike to Work, Fitness classes, Mindfulness Workshops, Employee Assistance Programme and much more. Generous holiday allowance, enhanced maternity/paternity leave, marriage/civil partnership leave and special leave policies.
• Educational assistance, incentivised certifications, and accreditations, including AWS, Microsoft, Oracle, and Red Hat.
• Reward schemes including Version 1s Annual Excellence Awards & Call-Out platform.
• Environment, Social and Community First initiatives allow you to get involved in local fundraising and development opportunities as part of fostering our diversity, inclusion and belonging schemes.
• And many more exciting benefits drop us a note to find out more.