Grassroots Recruitment Ltd
Reading, Oxfordshire
We re seeking a versatile Backend / AI Developer with hands-on experience delivering end-to-end solutions from concept to production. The ideal candidate brings strong expertise in Java (Spring Boot) and Python, with the ability to build scalable microservices, SaaS platforms, and AI-powered applications. You should be proficient in cloud platforms such as AWS and GCP, and experienced in API-first design, security best practices, and observability tools to ensure reliable, high-performing systems. On the AI side, you have practical experience working with large language models (LLMs), prompt engineering, and frameworks like LangChain, with knowledge of advanced patterns such as Retrieval-Augmented Generation (RAG) and agent-based systems. A strong foundation in Agile SDLC practices is essential, along with familiarity in containerization, DevOps, and low-code/no-code platforms. Experience across both backend and AI domains will enable you to seamlessly integrate advanced AI capabilities into scalable enterprise systems, making you a key contributor to building the next generation of intelligent, secure, and high-performance applications. Backend / AI Developer Key Skills & Competencies Core Development: Hands-on experience in taking solutions from concept to production, with strong expertise in Java (Spring Boot) and Python for backend and AI-driven application development. Proficiency in building microservices, SaaS solutions, and API-first architectures to enable scalable, interoperable systems. Frameworks & Tools: Backend: Spring Boot (web, data, cloud, security), JUnit 5, Mockito, database integration. AI: LangChain, Retrieval-Augmented Generation (RAG), MCP servers (as consumer and developer), and prompt engineering for LLM optimization. Exposure to popular libraries and frameworks (Apache Commons, Guava, Swagger, TestContainers). Architecture & Platforms: Skilled in designing and deploying distributed systems on cloud hyperscalers (AWS, GCP). Familiarity with containerization (Docker), CI/CD pipelines, DevOps practices, and Infrastructure as Code (IaC). Experience with workflow/orchestration engines and agent-based architectures. Scalability, Data & Observability: Expertise in designing for scalability, performance, and extensibility across structured, semi-structured, and unstructured data. Strong foundation in security best practices, with practical knowledge of logging, metrics, tracing, distributed debugging, and performance monitoring. Awareness of AI application security and model safety considerations. AI Development: End-to-end development of AI-powered solutions, from concept to production readiness. Practical experience with LLMs and agentic AI, including LangChain integration, RAG pipelines, prompt engineering, and model consumption via APIs. Ability to bridge backend and AI workflows, integrating advanced AI capabilities into scalable enterprise platforms. SDLC & Agile Practices: Familiar with the Software Development Life Cycle (SDLC) and effective collaboration in Agile environments. Ability to leverage low-code/no-code platforms for rapid solution delivery. Nice to Have: Knowledge of Domain-Driven Design (DDD) and schema-first development. Experience designing plugin architectures and extensibility frameworks. Exposure to frontend development (HTML5, CSS3, TypeScript, responsive UIs) for full-stack collaboration. To apply, please submit your CV and daily rate expectation by clicking on the relevant links. If successful you will be contacted by one of our consultants within 3 working days. Unfortunately, due to the volume of applications we expect to receive for this role, if you do not hear from us within this time you should presume your application has been unsuccessful on this occasion. Grassroots Recruitment is acting as a recruitment agency and a recruitment business in respect of this contract vacancy. Grassroots Recruitment is an equal opportunities employer and recruiter. We welcome applications from all sections of the community, regardless of age, race, sex, sexual orientation, marital status, religion or disability
We re seeking a versatile Backend / AI Developer with hands-on experience delivering end-to-end solutions from concept to production. The ideal candidate brings strong expertise in Java (Spring Boot) and Python, with the ability to build scalable microservices, SaaS platforms, and AI-powered applications. You should be proficient in cloud platforms such as AWS and GCP, and experienced in API-first design, security best practices, and observability tools to ensure reliable, high-performing systems. On the AI side, you have practical experience working with large language models (LLMs), prompt engineering, and frameworks like LangChain, with knowledge of advanced patterns such as Retrieval-Augmented Generation (RAG) and agent-based systems. A strong foundation in Agile SDLC practices is essential, along with familiarity in containerization, DevOps, and low-code/no-code platforms. Experience across both backend and AI domains will enable you to seamlessly integrate advanced AI capabilities into scalable enterprise systems, making you a key contributor to building the next generation of intelligent, secure, and high-performance applications. Backend / AI Developer Key Skills & Competencies Core Development: Hands-on experience in taking solutions from concept to production, with strong expertise in Java (Spring Boot) and Python for backend and AI-driven application development. Proficiency in building microservices, SaaS solutions, and API-first architectures to enable scalable, interoperable systems. Frameworks & Tools: Backend: Spring Boot (web, data, cloud, security), JUnit 5, Mockito, database integration. AI: LangChain, Retrieval-Augmented Generation (RAG), MCP servers (as consumer and developer), and prompt engineering for LLM optimization. Exposure to popular libraries and frameworks (Apache Commons, Guava, Swagger, TestContainers). Architecture & Platforms: Skilled in designing and deploying distributed systems on cloud hyperscalers (AWS, GCP). Familiarity with containerization (Docker), CI/CD pipelines, DevOps practices, and Infrastructure as Code (IaC). Experience with workflow/orchestration engines and agent-based architectures. Scalability, Data & Observability: Expertise in designing for scalability, performance, and extensibility across structured, semi-structured, and unstructured data. Strong foundation in security best practices, with practical knowledge of logging, metrics, tracing, distributed debugging, and performance monitoring. Awareness of AI application security and model safety considerations. AI Development: End-to-end development of AI-powered solutions, from concept to production readiness. Practical experience with LLMs and agentic AI, including LangChain integration, RAG pipelines, prompt engineering, and model consumption via APIs. Ability to bridge backend and AI workflows, integrating advanced AI capabilities into scalable enterprise platforms. SDLC & Agile Practices: Familiar with the Software Development Life Cycle (SDLC) and effective collaboration in Agile environments. Ability to leverage low-code/no-code platforms for rapid solution delivery. Nice to Have: Knowledge of Domain-Driven Design (DDD) and schema-first development. Experience designing plugin architectures and extensibility frameworks. Exposure to frontend development (HTML5, CSS3, TypeScript, responsive UIs) for full-stack collaboration. To apply, please submit your CV and daily rate expectation by clicking on the relevant links. If successful you will be contacted by one of our consultants within 3 working days. Unfortunately, due to the volume of applications we expect to receive for this role, if you do not hear from us within this time you should presume your application has been unsuccessful on this occasion. Grassroots Recruitment is acting as a recruitment agency and a recruitment business in respect of this contract vacancy. Grassroots Recruitment is an equal opportunities employer and recruiter. We welcome applications from all sections of the community, regardless of age, race, sex, sexual orientation, marital status, religion or disability
Grassroots Recruitment Ltd
Reading, Oxfordshire
We re seeking a detail-oriented QA Engineer with strong expertise in test automation using tools like Playwright, Jest, and Cucumber. The ideal candidate has solid programming skills to develop and maintain automated testing frameworks and is proficient in API testing for RESTful and services. Experience in performance testing, database validation using SQL, and ensuring cross-browser and cross-platform compatibility is essential. Comfortable working within Agile teams, you ll collaborate closely with developers and stakeholders to deliver reliable, high-quality software products. QA Engineer Key Skills & Competencies Test Automation: Hands-on experience with Playwright, Jest, and Cucumber for end-to-end, unit, and behavior-driven testing. Programming & Scripting: Strong programming/scripting skills to build and maintain automated test frameworks. API Testing: Proficient in validating and automating RESTful APIs for functionality, performance, and security. Performance Testing: Skilled in designing and executing performance and load testing strategies to ensure system reliability at scale. Database Testing: Solid SQL expertise for backend validation, data integrity checks, and query optimization testing. Cross-Browser & Cross-Platform: Experienced in validating compatibility across multiple browsers, devices, and operating systems. Agile Collaboration: Familiar with the Software Development Life Cycle (SDLC) and Agile methodologies, working closely with developers, product owners, and stakeholders to ensure high-quality releases. To apply, please submit your CV and daily rate expectation by clicking on the relevant links. If successful you will be contacted by one of our consultants within 3 working days. Unfortunately, due to the volume of applications we expect to receive for this role, if you do not hear from us within this time you should presume your application has been unsuccessful on this occasion. Grassroots Recruitment is acting as a recruitment agency and a recruitment business in respect of this contract vacancy. Grassroots Recruitment is an equal opportunities employer and recruiter. We welcome applications from all sections of the community, regardless of age, race, sex, sexual orientation, marital status, religion or disability
We re seeking a detail-oriented QA Engineer with strong expertise in test automation using tools like Playwright, Jest, and Cucumber. The ideal candidate has solid programming skills to develop and maintain automated testing frameworks and is proficient in API testing for RESTful and services. Experience in performance testing, database validation using SQL, and ensuring cross-browser and cross-platform compatibility is essential. Comfortable working within Agile teams, you ll collaborate closely with developers and stakeholders to deliver reliable, high-quality software products. QA Engineer Key Skills & Competencies Test Automation: Hands-on experience with Playwright, Jest, and Cucumber for end-to-end, unit, and behavior-driven testing. Programming & Scripting: Strong programming/scripting skills to build and maintain automated test frameworks. API Testing: Proficient in validating and automating RESTful APIs for functionality, performance, and security. Performance Testing: Skilled in designing and executing performance and load testing strategies to ensure system reliability at scale. Database Testing: Solid SQL expertise for backend validation, data integrity checks, and query optimization testing. Cross-Browser & Cross-Platform: Experienced in validating compatibility across multiple browsers, devices, and operating systems. Agile Collaboration: Familiar with the Software Development Life Cycle (SDLC) and Agile methodologies, working closely with developers, product owners, and stakeholders to ensure high-quality releases. To apply, please submit your CV and daily rate expectation by clicking on the relevant links. If successful you will be contacted by one of our consultants within 3 working days. Unfortunately, due to the volume of applications we expect to receive for this role, if you do not hear from us within this time you should presume your application has been unsuccessful on this occasion. Grassroots Recruitment is acting as a recruitment agency and a recruitment business in respect of this contract vacancy. Grassroots Recruitment is an equal opportunities employer and recruiter. We welcome applications from all sections of the community, regardless of age, race, sex, sexual orientation, marital status, religion or disability
Grassroots Recruitment Ltd
Reading, Oxfordshire
Frontend Developer Key Skills & Competencies End-to-End Development: Hands-on experience taking applications from concept to implementation, delivering high-quality, user-focused solutions. Core Frontend Skills: Proficient in TypeScript, React, HTML5, and CSS3, with the ability to build scalable, maintainable, and performant interfaces. Testing & Quality Assurance: Experience with Jest and related testing practices to ensure reliable and well-tested codebases. Security & Best Practices: Strong understanding of frontend security principles and safe coding practices. Accessibility & Inclusive Design: Skilled in applying WCAG, ARIA, and accessibility best practices to create inclusive digital experiences. Responsive Design: Expertise in building cross-platform, responsive interfaces that work seamlessly across devices and browsers. Tooling & Package Management: Proficient with NPM and modern build workflows. Agile Practices: Familiarity with the Software Development Life Cycle (SDLC) and working in Agile environments for iterative delivery. Low-Code/No-Code: Ability to leverage low-code and no-code solutions where appropriate to accelerate delivery. Nice to Have Exposure to agentic AI, including experience with LLMs, MCP servers, LangChain, and prompt engineering. To apply, please submit your CV and daily rate expectation by clicking on the relevant links. If successful you will be contacted by one of our consultants within 3 working days. Unfortunately, due to the volume of applications we expect to receive for this Lab Supervisor role, if you do not hear from us within this time you should presume your application has been unsuccessful on this occasion. Grassroots Recruitment is acting as a recruitment agency and a recruitment business in respect of this contract vacancy. Grassroots Recruitment is an equal opportunities employer and recruiter. We welcome applications from all sections of the community, regardless of age, race, sex, sexual orientation, marital status, religion or disability
Frontend Developer Key Skills & Competencies End-to-End Development: Hands-on experience taking applications from concept to implementation, delivering high-quality, user-focused solutions. Core Frontend Skills: Proficient in TypeScript, React, HTML5, and CSS3, with the ability to build scalable, maintainable, and performant interfaces. Testing & Quality Assurance: Experience with Jest and related testing practices to ensure reliable and well-tested codebases. Security & Best Practices: Strong understanding of frontend security principles and safe coding practices. Accessibility & Inclusive Design: Skilled in applying WCAG, ARIA, and accessibility best practices to create inclusive digital experiences. Responsive Design: Expertise in building cross-platform, responsive interfaces that work seamlessly across devices and browsers. Tooling & Package Management: Proficient with NPM and modern build workflows. Agile Practices: Familiarity with the Software Development Life Cycle (SDLC) and working in Agile environments for iterative delivery. Low-Code/No-Code: Ability to leverage low-code and no-code solutions where appropriate to accelerate delivery. Nice to Have Exposure to agentic AI, including experience with LLMs, MCP servers, LangChain, and prompt engineering. To apply, please submit your CV and daily rate expectation by clicking on the relevant links. If successful you will be contacted by one of our consultants within 3 working days. Unfortunately, due to the volume of applications we expect to receive for this Lab Supervisor role, if you do not hear from us within this time you should presume your application has been unsuccessful on this occasion. Grassroots Recruitment is acting as a recruitment agency and a recruitment business in respect of this contract vacancy. Grassroots Recruitment is an equal opportunities employer and recruiter. We welcome applications from all sections of the community, regardless of age, race, sex, sexual orientation, marital status, religion or disability