SQL & API Developer

We are seeking a skilled SQL Full Stack Developer to design, build, test and support secure, scalable applications across the database, server-side and user-interface layers. The role requires strong SQL expertise, modern front-end and back-end development skills, and practical experience designing and integrating RESTful APIs. The successful candidate will join our dynamic Global IT team based in our Bristol, Leeds or Nottingham office. This is a hybrid role with some UK Travel required. You will work closely with cross-functional teams, including business stakeholders, finance, accounting, and IT, to gather requirements and deliver reliable, maintainable solutions that deliver an excellent user experience. Please note- this is a 12-month fixed term contract., Design, develop and maintain full stack web applications.

• Create efficient SQL queries, stored procedures, views, functions and data models.
• Design, build, document and maintain secure RESTful APIs and integrations.
• Develop responsive, accessible user interfaces using modern front-end technologies.
• Build robust server-side services, business logic and data-access components.
• Integrate applications with internal systems, third-party services and external APIs.
• Optimise database and application performance, scalability and reliability.
• Write clean, reusable and well-tested code in line with agreed standards.
• Participate in code reviews, technical design discussions and release planning.
• Troubleshoot production issues and deliver timely, sustainable fixes.
• Apply secure coding practices, authentication, authorisation and data-protection controls.
• Maintain technical documentation, API specifications and deployment guidance.

• Support continuous integration, automated testing and deployment processes. As a Gleeds team member, you will have access to:

• Opportunities to develop and grow your career
• A contributory pension scheme
• Employee Assistance Programme
• Flexible working arrangements *

Experience, Knowledge and Key Skills

• Strong commercial experience in full stack software development.
• Advanced SQL skills, including query optimisation, indexing, relational data modelling and performance tuning.
• Experience with Microsoft SQL Server
• Experience with cloud platforms such as Microsoft Azure, AWS or Google Cloud.
• Experience with API gateways, caching, rate limiting and distributed systems.
• Proficiency in a back-end technology such as C#/.NET, Javaor a comparable framework.
• Proficiency in JavaScript or TypeScript and a modern front-end framework such as React, Angular or Vue.
• Demonstrable experience designing and consuming RESTful APIs.
• Good understanding of HTTP, JSON, API versioning, error handling and API documentation.
• Experience implementing authentication and authorisation, such as OAuth 2.0, OpenID Connect or JWT.
• Understanding of secure development principles and common web application vulnerabilities.
• Strong analytical, problem-solving and communication skills.
• Knowledge of Agile delivery methods and tools.
• Collaborative and comfortable working across technical and non-technical teams.
• Quality-focused, with strong attention to detail and ownership of outcomes.
• Pragmatic and able to balance delivery speed with maintainability and risk.
• Curious, adaptable and committed to continuous learning.

• Able to explain technical concepts clearly to different audiences. Measures of Success

• Reliable delivery of high-quality features that meet agreed requirements.
• Well-performing, secure and maintainable applications and databases.
• Clear, consistent and well-documented APIs.
• Effective collaboration, knowledge sharing and contribution to engineering standards.
• Timely resolution of defects and continuous reduction of technical debt., + A degree in computer science, software engineering or a related discipline, or equivalent practical experience.
• Relevant technical certifications are beneficial but not essential.

Gleeds is a global property and construction consultancy with over 150 years of expertise, operating in 28 countries worldwide. From iconic landmarks to critical infrastructure, we drive innovation, sustainability and value, delivering transformative projects that shape communities and redefine the built environment.