Senior Fullstack Engineer

Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Version 1 has several strategic technology partners including Microsoft, AWS, Oracle, Red Hat, OutSystems and Snowflake. We're also an award-winning employer reflecting how employees are at the heart of Version 1. 

We've been awarded: Innovation Partner of the Year Winner 2023 Oracle EMEA Partner Awards, Global Microsoft Modernising Applications Partner of the Year Award 2023, AWS Collaboration Partner of the Year - EMEA 2023 and Best Workplaces for Women by Great Place To Work in UK and Ireland 2023. 

As a consultancy and service provider, Version 1 is a digital-first environment and we do things differently. We're focused on our core values; using these we've seen significant growth across our practices and our Digital, Data and Cloud team is preparing for the next phase of expansion. This creates new opportunities for driven and skilled individuals to join one of the fastest-growing consultancies globally. 

We are seeking a highly skilled Senior Fullstack Engineer with strong expertise in .NET Core, C#, Web API, and ReactJS. The ideal candidate will have proven experience in leading Scrum teams, designing and building scalable enterprise applications, and driving engineering excellence. This role requires a mix of hands-on technical expertise, leadership, and stakeholder management, ensuring the successful delivery of solutions in an Agile environment.

The successful candidate will have a strong foundation in object-oriented programming, modern JavaScript/TypeScript, cloud technologies (Azure), and SQL databases. They should be proactive, self-motivated, and capable of mentoring team members while collaborating effectively with international clients and cross-functional teams.

Key Responsibilities

• Break down backlog items into actionable tasks, assign ownership, and drive timely, high-quality delivery.
• Mentor, coach, and support team members on technical challenges, fostering a culture of collaboration and continuous learning.
• Design, develop, and maintain applications using .NET Core / .NET 6+, ASP.NET Core, Web API, and ReactJS with modern JavaScript/TypeScript, HTML5, and CSS3.
• Apply design principles, SOLID practices, and innovative solutions to deliver scalable and maintainable applications.
• Prepare low-level designs, technical specifications, and functional documentation aligned with overall architecture.
• Develop architectural diagrams, workflow models, and prototypes using tools such as Visio, , and Figma.
• Work with Entity Framework Core and Dapper for ORM and data access.
• Build and optimize complex Stored Procedures, Triggers, and Views in SQL Server.
• Ensure reliability and maintainability of code through unit testing (xUnit, Jest, React Testing Library).
• Use Azure DevOps and Git for source control, branching/merging strategies, CI/CD automation, and deployment.
• Actively drive Agile ceremonies including sprint planning, daily stand-ups, retrospectives, and backlog refinement.
• Conduct peer code reviews and secure code reviews, ensuring adherence to coding standards, best practices, and application security guidelines.
• Perform static and dynamic code analysis (SAST & DAST) to maintain security and code quality.
• Leverage Azure services (App Services, Functions, Container Apps, SQL, etc.) for cloud-native application development and deployments.
• Manage Azure deployments, application performance optimization, and basic cloud administration tasks.
• Collaborate with stakeholders and cross-functional teams to ensure technical solutions align with business goals.
• Provide guidance and mentoring to junior developers, encouraging growth and maintaining delivery excellence.

Required Skills

• Bachelor's degree in Engineering/Computer Science with 7+ years of professional experience, including 3+ years of mentoring development teams.
• Strong experience in end-to-end project delivery – from requirement analysis and design to development, testing, deployment, and support.
• 6+ years of hands-on development experience in building enterprise applications using ASP.NET Core, C#, Web API, and SQL Server.
• Proven expertise in ReactJS with modern JavaScript/TypeScript, HTML5, CSS3, Redux (or similar state management libraries).
• Strong understanding of OOP principles, SOLID practices, design patterns (MVVM, component-based architecture), and SPA frameworks.
• Proficiency in writing unit tests with xUnit (backend) and Jest/React Testing Library (frontend).
• Experience working with Entity Framework Core and Dapper for ORM and data access.
• Strong knowledge of SQL Server, with ability to write and optimize Stored Procedures, Triggers, and Views.
• Experience with Azure cloud services – App Services, Functions, Container Apps, SQL, deployments, and basic cloud administration.
• Knowledge of microservices architecture, API security (OAuth2, JWT, Azure AD), and event-driven systems (Azure Service Bus, Event Grid).
• Hands-on experience with CI/CD pipelines (Azure DevOps/GitHub Actions) and modern DevOps practices.
• Familiarity with containerization (Docker, Kubernetes) and infrastructure-as-code concepts (ARM, Bicep, Terraform).
• Exposure to code quality and observability tools like SonarQube and Application Insights.
• Strong leadership in Agile/Scrum methodologies – sprint planning, backlog refinement, estimation, conducting code reviews, and enforcing coding standards.
• Excellent communication, presentation, and stakeholder management skills, with the ability to translate business needs into technical solutions.
• Willingness to work in UK shift hours for effective collaboration with global teams and clients.

Desired Skills

• Azure Developer Associate certification.

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

One of our standout advantages is the ability to work with a hybrid schedule along with business travel, allowing our employees to strike a balance between work and life. We also offer a range of tech-related benefits, including an innovative Tech Scheme to help keep our team members up-to-date with the latest technology. 

We prioritise the health and safety of our employees, providing private medical and life insurance coverage, as well as free eye tests and contributions towards glasses. Our team members can also stay ahead of the curve with incentivized certifications and accreditations, including AWS, Microsoft, Oracle, and Red Hat. 

Our employee-designed Profit Share scheme divides a portion of our company's profits each quarter amongst employees. We are dedicated to helping our employees reach their full potential, offering Pathways Career Development Quarterly, a programme designed to support professional growth.