Simon James I.T. Ltd

About the Company

Simon James IT is an international specialist IT consultancy based in the City of London.

Coming from successful consultancy backgrounds we have taken the positive elements of large scale recruitment and built a business model to provide a personalized solution for your recruitment needs. We offer a dedicated service to ensure you get the best possible candidates within both your timescales and budget.

Our business has grown organically from building solid foundations within niche technology areas and working closely with organisations. Through success our client base developed and in turn our business evolved with them, to supply a wider range of technologies and skills across multiple sectors.

Across the years we have had a number of these clients ask for a more in depth service which would have taken us away from the tailored solution that has made us successful. With this in mind we have created SJ Infrastructure & Technology Services, our independently managed consultancy arm to provide outsourcing for larger projects to meet our client's needs. This allows us to still concentrate on our core business as a specialised IT recruitment function.


Established in 2006 we rapidly created a reputation for providing high quality candidates to a wide range of business sectors whilst remaining a boutique, tailored, personal service.

Solely owned and managed by the Directors we guarantee the needs of both client and candidate are not only met but exceeded.

Listed Jobs

Company Name

Simon James I.T. Ltd

Job Title

Senior C++ Engineer - Fintech - London (Hybrid)

Job Description

Job title: Senior C++ Engineer – Fintech Role Summary: Lead design and implementation of cloud‑based C++ features for a global fintech platform. Drive code quality through reviews, mentor junior developers, and collaborate closely with stakeholders to translate business needs into robust technical solutions. Expactations: - Deliver high‑quality, maintainable C++ code on schedule. - Participate actively in Agile ceremonies and cross‑functional discussions. - Foster a culture of continuous improvement and knowledge sharing. Key Responsibilities: - Architect and develop new platform features using modern C++ (C++17/20). - Conduct code reviews, enforce coding standards, and promote best practices. - Integrate with SQL databases and Unix/Linux environments; manage data pipelines involving Kafka. - Apply domain knowledge of financial markets and trade lifecycle to ensure accurate system behavior. - Coach and support junior team members, facilitating their technical growth. Required Skills: - Extensive experience with C++ development, including object‑oriented and concurrent programming. - Strong grasp of SQL and Unix/Linux operating systems. - Familiarity with distributed messaging systems such as Kafka. - Understanding of financial instruments, market operations, and trade lifecycle. - Excellent communication skills for stakeholder collaboration and mentoring. Required Education & Certifications: - Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field. - Professional certifications (e.g., C++ certifications, Agile Scrum Master) are a plus.

London, United kingdom

Hybrid

Senior

30-09-2025

Company Name

Simon James I.T. Ltd

Job Title

ICT Solutions Designer

Job Description

**Job Title:** ICT Solutions Designer **Role Summary:** Design, develop, and document ICT, physical infrastructure, and telecommunications solutions for a global technology partner. Provide advisory expertise, ensure compliance with industry standards, and produce technical deliverables on‑site. **Expectations:** - Deliver high‑quality design and documentation within a 6‑month contract (extension possible). - Work onsite near Liverpool Street, collaborating with stakeholders and project teams. - Apply standards‑based engineering practices and maintain clear technical communication. **Key Responsibilities:** - Create and maintain design drawings (AutoCAD or similar) for structured cabling, fiber, copper, wireless, DAS, smart‑building, IoT, and data‑center infrastructure. - Develop technical specifications, SOPs, and documentation packages. - Ensure designs comply with ANSI/TIA, ISO/IEC, NEC, IEEE, BICSI, and local building codes. - Coordinate with architects, engineers, and client stakeholders to validate pathways, grounding, bonding, firestopping, and space planning. - Conduct reviews of network architecture, audio/visual, and security system designs. - Provide technical guidance and support during implementation and handover phases. **Required Skills:** - Proficiency in CAD tools (AutoCAD or equivalent) for infrastructure design. - Strong technical writing and documentation abilities. - In‑depth knowledge of network infrastructure design and structured cabling systems. - Familiarity with copper, fiber optic, wireless, DAS, smart‑building, and IoT technologies. - Excellent communication and stakeholder‑management skills. **Required Education & Certifications:** - Bachelor’s degree in Electrical Engineering, Telecommunications, Computer Networking, or related field (or equivalent experience). - Professional certifications preferred: BICSI (RCDD, OSP), Cisco CCNA/CCNP, CompTIA Network+, or equivalent. - Demonstrated experience with ANSI/TIA, ISO/IEC, NEC, IEEE, and BICSI standards.

London, United kingdom

On site

10-10-2025

Company Name

Simon James I.T. Ltd

Job Title

Principal Test Engineer – AI Core Services (Azure / .Net)

Job Description

**Job Title:** Principal Test Engineer – AI Core Services (Azure/.NET) **Role Summary:** Lead the validation of cloud‑native AI services and APIs on Microsoft Azure using .NET. Design and implement automated testing frameworks, develop AI‑specific evaluation tools, and ensure compliance with security, reliability, and ethical standards. **Expectations:** - Drive functional, performance, and security testing strategies for AI‑focused services. - Build and maintain automated test suites and AI output assessment tools. - Define quality metrics, observability, and compliance with AI regulatory frameworks. - Mentor junior testing staff and promote innovative testing practices. **Key Responsibilities:** - Lead end‑to‑end testing of Azure‑based AI services, including APIs and pipeline components. - Develop and integrate automated test frameworks within CI/CD pipelines (Azure DevOps). - Create tools for AI output evaluation (accuracy, consistency, safety, bias detection, hallucination detection). - Conduct threat modeling and OWASP‑based security testing of exposed APIs. - Collaborate with engineering and data‑science teams to define quality metrics and observability dashboards. - Ensure adherence to NIST AI RMF, EU AI Act, and internal ethical AI guidelines. - Provide technical guidance and mentorship to junior testers. **Required Skills:** - Extensive experience testing cloud‑native applications on Microsoft Azure/.NET. - Strong expertise in automated testing, QA leadership, and CI/CD integration. - Deep knowledge of AI evaluation techniques: LLM scoring, hallucination detection, prompt engineering, RAG, model orchestration. - Proficiency in AI safety practices: bias detection, explainability, ethical AI. - Hands‑on experience with API validation, performance profiling, and OWASP security testing. - Familiarity with Azure DevOps, containerized environments, and DevOps best practices. - Ability to work Agile across global R&D teams. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or related technical field (Master’s preferred). - Relevant certifications (e.g., Microsoft Certified: Azure Solutions Architect, ISTQB Advanced Test Manager, or equivalent) are a plus. - Demonstrated knowledge of AI regulatory standards (NIST AI RMF, EU AI Act) preferred.

Cambridge, United kingdom

Hybrid

Senior

16-10-2025

Company Name

Simon James I.T. Ltd

Job Title

AI Developer - Azure .Net - Cambridge

Job Description

**Job Title** Senior AI Engineer – Azure .NET **Role Summary** Design, develop, and maintain secure, scalable, cloud‑native AI platform services and public APIs on Microsoft Azure. Deliver production‑grade AI capabilities that support advanced orchestration, model deployment, and secure access across data pipelines and full‑stack solutions. **Expectations** - Build fault‑tolerant, production‑ready AI services on Azure and .NET. - Create well‑documented, secure public APIs and SDKs. - Lead architectural decisions, code reviews, and design discussions. - Mentor junior engineers and collaborate with global R&D teams. **Key Responsibilities** - Develop AI services using Azure Functions, AKS, API Management, and other Azure PaaS offerings. - Build secure, RESTful APIs and associated SDKs with lifecycle management. - Deliver end‑to‑end AI solutions covering data pipelines, orchestration layers, and model deployment. - Conduct design/code reviews and contribute to architectural decisions. - Mentor junior engineers and work with cross‑functional, hybrid teams. **Required Skills** - Strong experience with Large Language Models (LLMs), Retrieval Augmented Generation (RAG), agent orchestration, and prompt engineering. - Familiarity with AI standards such as MCP and Agent2Agent. - Proficient in Python, PyTorch, TensorFlow, and AI tooling (e.g., GitHub Copilot). - Knowledge of ML algorithms, AI ethics frameworks (NIST AI RMF, EU AI Act). - Experience with AI orchestration platforms (AI Foundry, Semantic Kernel). - Microsoft Azure PaaS expertise (Functions, AKS, API Management). - RESTful API design, security best practices, and data privacy compliance. - Agile development practices in hybrid team environments. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience). - Azure or .NET professional certifications preferred (e.g., Microsoft Certified: Azure Developer Associate, Azure Solutions Architect).

Cambridge, United kingdom

Hybrid

16-10-2025