Senior Full stack Developer

Overview

Develop and maintain .NET/Azure solutions, mobile apps, APIs, and AI-assisted coding.

Key Responsibilities

• system testing
• environment design
• tool development
• bug fixing
• api development
• mobile development

Tasks

The successful candidate will be responsible for software development in a primarily Microsoft infrastructure. This includes researching, designing, documenting, and modifying software specifications throughout the production lifecycle. The software developer will also analyse and amend software errors in a timely and accurate fashion and provide status reports where required. The main purpose of the role is to ensure the successful delivery of high-quality software solutions. This person is expected to work in agile environments, collaborating closely with cross-functional teams to adapt to changing requirements and deliver incremental value. Additionally, the role involves leveraging AI-assisted development tooling to enhance productivity, streamline workflows, and ensure the implementation of innovative solutions. The ideal candidate will be proficient in utilizing these advanced tools to automate repetitive tasks, improve code quality, and accelerate the development process. The Senior Full Stack Developer is expected to bring a high level of technical proficiency, autonomy, and leadership to ensure the effective delivery and continuous improvement of DevOps practices across the organisation. -System and user testing to enhance the quality of final releases to production. -Design and maintain development and test environments -Development of new solutions and enhancements to existing tools -Analyse the reported issue and report suitable resolutions/development requirements or workarounds and implement a suitable resolution where possible -Bug Fixing to implement the appropriate bug fixes arising from any development (during Cornerstone core hours). -This is also to ensure security is designed into any solution, following Cornerstone compliance guidelines. -Development of new solutions and enhancements to existing tools, -Respond to new functionality development requirements, as agreed with the client. To be undertaken, implemented and tested to guideline standards within agreed timescale(s). -Develop and maintain cross-platform mobile applications using .NET MAUI, ensuring responsive and user-friendly interfaces. -Design, develop, and maintain robust and scalable APIs to support internal and external integrations. -Mentoring and Guidance: The role involves mentoring junior DevOps engineers and developers, sharing knowledge, and fostering a culture of continuous learning and improvement within the team. -Ensure all developments are undertaken in a controlled development environment and are release controlled to representative test environments for

Requirements

• azure
• c#
• sql server
• terraform
• devops
• ai coding

What You Bring

-Experience with Azure Integration services (Azure functions, Logic apps, event grid, key vault) -Hons Degree or equivalent in Computer Science, Telecommunications or Engineering. -OSS or BSS Mobile telecoms experience -Critical Skills: Strong problem-solving and analytical skills are vital, along with effective communication to collaborate across technical and non-technical teams. -Relevant Experience: Ideal candidates will have several years of experience in DevOps or related roles, such as Systems Engineer, Build and Release Engineer, or Cloud Infrastructure Engineer. Experience in agile environments and working closely with development, QA, and operations teams is highly beneficial. -Strong MS SQL Server -Experience with MS Azure virtual environments -Experience of developing business reporting services. -Full stack development skills, including Microsoft development toolset -Experience in API development and integration -Leadership in driving DevOps culture, mentoring junior engineers, and influencing best practices is expected. Time management and adaptability are also key in a fast-paced environment. -Autonomy and Judgement: The role requires a medium degree of independence in decision-making, particularly in selecting tools, designing automation strategies, and resolving complex deployment or infrastructure issues. -Full Stack, including Microsoft Stack (ASP.Net Core, MVC .Net, Entity Framework Core, C#), Python, JavaScript (React JS), jQuery, SQL Server 2016+ -Experience with SSIS -Experience of Webservices REST and SOAP, SFTP -Familiarity with security and compliance frameworks relevant to DevOps is also critical. -Extensive development experience in the design and development of relational databases -AI Assisted Coding (Vibe Coding) -The developer is trusted to make sound technical judgments that align with organisational goals. -Existing applications will include mainly .NET Core web applications. New applications will include mainly Azure integration services using Functions, logic apps, key vault, SQL Azure as a service -Familiarity with Azure AI services and intelligent agents -Experience with SFTP -Experience directly managing users’ requirements and translating them into systems requirements -Specialist Knowledge: Deep expertise in cloud infrastructure (particularly Azure), CI/CD pipelines, Infrastructure as Code (e.g. Terraform, ARM templates), and monitoring tools is essential. -Experience in mobile app development using .NET MAUI -AI Assisted coding (Vibe Coding): The candidate must be proficient in utilizing AI-assisted coding tools, such as Vibe Coding, to enhance productivity, improve code quality, and streamline the development process.

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Benefits

6 Months Contract - Day Rate

About Cornerstone

-Specialising in mobile & digital infrastructure, power provisioning, site acquisition, planning, deployment and ongoing maintenance. -As a neutral-host TowerCo, supports multiple operators on shared sites for improved efficiency and connectivity. -Client roll call includes Vodafone, Telefónica, and local authorities, delivering 4G/5G upgrades in diverse locations like festivals, stadiums, and hospitals. -Pioneered a UK-first shared-host trial with Vodafone, Vantage Towers, and a leading university, exploring innovative connectivity models.

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