IT Expert Principal
Join a leading independent technology and services provider as a Lead Enterprise Architect
Job Overview
The role involves supporting day-to-day operational activities on-site, ensuring all tasks are completed efficiently, safely, and in line with company standards. The candidate will be responsible for carrying out assigned duties, maintaining quality construction, and adhering to health and safety regulations at all times. Collaboration with team members and effective communication with supervisors will be essential to deliver project requirements successfully.
Title: Lead Enterprise Architect
Location: Hatfield
Rate: UMB - £500-550/day (Under IR35)
Start/End date: ASAP to 01-Jan-2027
Work Schedule: Mon-Fri 09:30-05:30
Key Responsibilities
- Carry out assigned tasks in line with project requirements and deadlines
- Ensure all work is completed to a high standard of quality and safety
- Use tools and equipment appropriately and responsibly
- Follow all health and safety guidelines and site protocols
- Work collaboratively with team members and site supervisors
- Maintain a clean and organised work environment
- Report any issues, delays, or safety concerns to management promptly.
- Attend briefings and follow instructions provided for daily activities
- Ensure compliance with company policies and client expectations
Skills And Experience
- Experience in designing complex, distributed, secure and scalable end-to-end architecture solutions within complex organisations.
- Significant experience as a technical enterprise architect (or similar role), including defining and delivering a technical vision and strategy, and designing scalable, reliable, and maintainable architectures.
- Strong knowledge of architectural best practices and design patterns, including:
- Strong experience in designing and modelling Complex Billing Models, Complex Customer journeys, Customer Hierarchies, Data Models.
- Ability to design conceptual and logical data models.
- Experience of database architectures and data modelling, SQL and NoSQL approaches and AWS database services.
- Sound experience working with a broad range of integration architectural patterns (eg SOA and microservices, etc)
- Sound understanding of modern web architecture and Serverless architecture
- Knowledge of container orchestration (eg Kubernetes)
- In-depth knowledge of cloud platforms, specifically AWS, but including Azure, GCP etc.
- Ability to conduct design reviews of large systems
- Experience of production systems and the issues that arise, eg functionality, performance, security
- Proven experience of conducting technical workshops, presenting technical solutions, preparing architecture guidelines and technical strategy documents.
- Experience of producing high quality UML-based architectural artefacts.
- Familiar with Enterprise Architecture frameworks (TOGAF, TM Forum, etc) and capable of suggesting new tools/process.
- Good understanding of information security and data protection principles
- Excellent communication (both written and verbal) and presentation skills.
- Technology sector experience (for example, mobile carrier/core enterprise systems); experience of designing and transitioning large-scale billing systems/services
- Knowledge of a broad range of technology concepts such as cloud computing (eg AWS), microservice architectures, event-driven architectures and data processing at scale. You will work with a range of specialist teams which may include machine learning, APIs and networking, and client applications (on web, mobile).
- Approaches to standardisation and governance, such as to manage efficiency, security and legal compliance, in a way that balances standardisation with autonomy at scale.
- Strong organisational skills that enable you to work across multiple specialist teams to align architecture goals and drive change and adoption.
- Understanding of key industry trends (eg AI). This includes assessing the potential impact of emerging technologies and integrating relevant advancements into the LFU architecture strategy to drive digital transformation.
- A mix of public sector and commercial experience
How to Apply: If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
Hays Talent Solutions is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found on our website.
Reference: 3127429688
IT Expert Principal
Posted on Jun 23, 2026 by Hays Talent Solutions
Join a leading independent technology and services provider as a Lead Enterprise Architect
Job Overview
The role involves supporting day-to-day operational activities on-site, ensuring all tasks are completed efficiently, safely, and in line with company standards. The candidate will be responsible for carrying out assigned duties, maintaining quality construction, and adhering to health and safety regulations at all times. Collaboration with team members and effective communication with supervisors will be essential to deliver project requirements successfully.
Title: Lead Enterprise Architect
Location: Hatfield
Rate: UMB - £500-550/day (Under IR35)
Start/End date: ASAP to 01-Jan-2027
Work Schedule: Mon-Fri 09:30-05:30
Key Responsibilities
- Carry out assigned tasks in line with project requirements and deadlines
- Ensure all work is completed to a high standard of quality and safety
- Use tools and equipment appropriately and responsibly
- Follow all health and safety guidelines and site protocols
- Work collaboratively with team members and site supervisors
- Maintain a clean and organised work environment
- Report any issues, delays, or safety concerns to management promptly.
- Attend briefings and follow instructions provided for daily activities
- Ensure compliance with company policies and client expectations
Skills And Experience
- Experience in designing complex, distributed, secure and scalable end-to-end architecture solutions within complex organisations.
- Significant experience as a technical enterprise architect (or similar role), including defining and delivering a technical vision and strategy, and designing scalable, reliable, and maintainable architectures.
- Strong knowledge of architectural best practices and design patterns, including:
- Strong experience in designing and modelling Complex Billing Models, Complex Customer journeys, Customer Hierarchies, Data Models.
- Ability to design conceptual and logical data models.
- Experience of database architectures and data modelling, SQL and NoSQL approaches and AWS database services.
- Sound experience working with a broad range of integration architectural patterns (eg SOA and microservices, etc)
- Sound understanding of modern web architecture and Serverless architecture
- Knowledge of container orchestration (eg Kubernetes)
- In-depth knowledge of cloud platforms, specifically AWS, but including Azure, GCP etc.
- Ability to conduct design reviews of large systems
- Experience of production systems and the issues that arise, eg functionality, performance, security
- Proven experience of conducting technical workshops, presenting technical solutions, preparing architecture guidelines and technical strategy documents.
- Experience of producing high quality UML-based architectural artefacts.
- Familiar with Enterprise Architecture frameworks (TOGAF, TM Forum, etc) and capable of suggesting new tools/process.
- Good understanding of information security and data protection principles
- Excellent communication (both written and verbal) and presentation skills.
- Technology sector experience (for example, mobile carrier/core enterprise systems); experience of designing and transitioning large-scale billing systems/services
- Knowledge of a broad range of technology concepts such as cloud computing (eg AWS), microservice architectures, event-driven architectures and data processing at scale. You will work with a range of specialist teams which may include machine learning, APIs and networking, and client applications (on web, mobile).
- Approaches to standardisation and governance, such as to manage efficiency, security and legal compliance, in a way that balances standardisation with autonomy at scale.
- Strong organisational skills that enable you to work across multiple specialist teams to align architecture goals and drive change and adoption.
- Understanding of key industry trends (eg AI). This includes assessing the potential impact of emerging technologies and integrating relevant advancements into the LFU architecture strategy to drive digital transformation.
- A mix of public sector and commercial experience
How to Apply: If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
Hays Talent Solutions is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found on our website.
Reference: 3127429688
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