Technical Architect Jobs in London

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Technical Architect Jobs in London

Overview

Looking for Technical Architect jobs in London? Explore top IT roles on Haystack, the leading job board connecting skilled Technical Architects with London’s fastest-growing tech companies. Find your next Technical Architect position in London today and take your career to the next level!

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AI Solutions Engineer

Hays Specialist Recruitment Limited

Senior Forward Deployed Engineer - AI SolutionsThis is a Hays Exclusive role which will move quickly for the right candidate*Please read the advert below and if you feel you are a strong match; call Lorenz Pasch at Hays Recruitment on ASAP. I answer all calls or call back*

If my phone number is not displayed here please view my LinkedIn profile

The RoleJoin a global leader in digital experience as we launch our new Gemini-powered AI platform. We’re building a new team in London and hiring for a Senior Forward Deployed Engineer to help enterprise clients unlock the full power of LLM + RAG technologyWhat you’ll do

Work directly with enterprise clients to turn business needs into live AI use cases

Lead proof of concepts (pre-sales) and guide customers through onboarding (post sales)

Design workflows and orchestrate agents & prompts that deliver real outcomes

Build custom connectors, APIs, and lightweight tools to integrate our AI solution into client systems

Run workshops, capture requirements, and translate them into scalable AI solutionsWhat we’re looking for

Background as a Solutions Engineer, Solutions Architect, or similar

Strong experience working directly with enterprise customers (consulting, workshops, exec comms)

Development skills are desirable (Python/JavaScript/TypeScript) for prototypes and integrations

Strong understanding of AI/LLM concepts (prompting, RAG)

Track record in digital experience or enterprise SaaSHighly desirable but not a showstopper

A significant background in the Digital Experience Platform (DXP)On offer

OTE of circa 115k, plus excellent benefits

Hybrid model - 3 days per week onsite in our Central London office

Opportunity to help shape a brand new team and product line at the forefront of enterprise AIIf you thrive at the intersection of technology and consulting and want to help enterprises put AI into action, get in touch with me today (I am available on the mobile during the weekend)

Hays Specialist Recruitment Limited 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 at hays.co.uk

Data Test Lead l Data platform l Test strategy l ingestion l Analytics l Test data management processes l ETL/ELT l DBT Test l Pytest l £325 PD l Outside IR35 l 3 months l London - Remote

Method Resourcing are partnering with one of our partnering consultancies in need of a data test lead to support one of their new enterprise data platform initiatives. This role will need someone with deep knowledge around data testing, automation and Quality governance across cloud-based data solutions.

Define and implement an end-to-end test strategy

Establish robust data validation and test data management frameworks

Drive automation and oversee testing phases

Lead cross-functional coordination and reporting

Contract:

Outside IR35

3 month contract

remote however, has to be based in the UK

£325 per day

Immediate start

THIS ROLE IS INITIALLY WORKING 3 DAYS PER WEEK WITH THE EXPECTATION OF GOING FULL TIME ONCE ANOTHER WORKSTREAM COMES THROUGH.

If you’re interested in the role and would love more information, please send me your CV ASAP at

Data Test Lead l Data platform l Test strategy l ingestion l Analytics l Test data management processes l ETL/ELT l DBT Test l Pytest l £325 PD l Outside IR35 l 3 months l London - Remote

RSG Plc is acting as an Employment Business in relation to this vacancy.

Salesforce Solution Architect - Loyalty Cloud Focus

Salesforce Solution Architect - (Loyalty Cloud Focus)

Base salary range: £100,000-£120,000

Hybrid London Office

Are you a visionary Salesforce Solution Architect ready to design enterprise-grade solutions that unlock real business value? Join a dynamic consultancy working on cutting-edge Salesforce implementations across Loyalty Cloud, Sales, Service, and Experience Clouds.

As a Salesforce Solution Architect, you’ll be the bridge between complex business requirements and elegant technical solutions. You’ll:

Translate business and technical needs into scalable Salesforce capabilities.

Model processes, architecture, and data structures to support strategic initiatives.

Develop robust, enterprise-grade architecture that maximizes Salesforce platform value.

Align business strategy with technological direction.

Guide and mentor teams, enforce architectural standards, and support delivery excellence.

Skills & Experience

Proven experience as a Salesforce Solution Architect, including recent Loyalty Cloud implementations.

Deep knowledge of Salesforce product suite and cross-cloud integrations.

Strong stakeholder management and consulting skills.

Ability to lead workshops (Discovery, Solution Design, Delivery).

Comfortable advising on governance, change management, and strategic adoption.

Salesforce Certified Application Architect and/or System Architect preferred.

Benefits

25 days paid annual leave + bank holidays

Private healthcare for you and your family (pre-existing conditions included)

Life assurance, dental insurance, income protection, critical illness cover

Pension scheme

Retail discounts and wellness reimbursements

Access to learning platforms and career development

Inclusive culture with active CSR and diversity initiatives

Technical Business Analyst 12 Month FTC

Technical Business Analyst - 12-Month Fixed Term Contract

Location: On-site 3 days/week (1 hr from London), 2 days WFHSalary: £70,000-£90,000 (DOE)Clearance: Active SC required, DV sponsorship available

Are you a detail-driven, technically minded Business Analyst ready to make a real impact in a fast-paced, high-stakes environment?

My client is seeking a Technical Business Analyst for a 12-month fixed term contract to support a critical programme of work. This is a fantastic opportunity to work with cutting-edge tools, collaborate with diverse stakeholders, and contribute to projects that truly matter.

What You’ll Be Doing

Gathering and analysing business and technical requirements using a variety of methods

Translating requirements into clear, actionable User Stories and Acceptance Criteria

Managing requirements and traceability using Azure DevOps (ADO)

Collaborating with cross-functional teams and stakeholders to ensure alignment with project goals

Supporting agile delivery teams with technical insight and structured documentation

Maintaining high standards of communication and stakeholder engagement throughout the project lifecycle

What You’ll Bring

Active SC Clearance (and a desire to be sponsored through DV)

Several years of experience as a Business Analyst in a technical or agile software development environment

Strong skills in requirement gathering, stakeholder management, and problem-solving

Proven experience with Azure DevOps or similar tools (Atlassian suite, etc.)

Excellent communication skills - both written and verbal

A proactive, self-starting attitude with the ability to manage your own workload

British nationality (dual nationality may be acceptable depending on country)

Bonus Points For

Relevant certifications (CBAP, PMI-ACP, etc.)

Experience with SAP Teamcenter implementations

Familiarity with Agile, Scrum, and other software development methodologies

This is your chance to join a high-performing team, work on meaningful projects, and grow your career in a supportive and dynamic environment.

Ready to take the next step? Apply now and bring your expertise to a role where your skills will truly shine.

Service Delivery Architect

Service Delivery Architect Consultancy £600-£700 (IIR35) Remote (Occasional client visits) 6-12 months

Our client is looking or a Service Delivery Architect to join the team on an exciting project.

You’ll play a key role in ensuring the successful design and delivery of IT services and solutions for our client. You will work closely with cross-functional teams, manage stakeholder expectations, and drive the seamless implementation of new services. Your expertise will be instrumental in shaping the delivery strategy, optimising service performance, and ensuring outcomes align with the client’s business needs.

Key Responsibilities:

Design and deliver service architecture solutions, ensuring they meet business requirements and are delivered on time, within budget, and to the highest quality.

Collaborate with business, technical, and operational teams to create and maintain scalable, secure, and resilient service architectures.

Work closely with stakeholders to gather requirements and translate them into technical specifications.

Provide leadership and guidance on the adoption of best practices and frameworks for service delivery.

Ensure compliance with relevant regulations, standards, and policies throughout service design and delivery.

Key Skills & Experience:

Proven experience as a Service Delivery Architect or in a similar senior service delivery role.

Strong understanding of IT service management frameworks (ITIL, COBIT, etc.)

In-depth knowledge of cloud-based technologies and infrastructure.

Candidates will be required to go through background checks before commencing contract.

Must be eligible to live and work in the specified work location . Some occasional travel maybe required. Only successful candidates will be contacted.

EQUAL OPPORTUNITIES Our client is committed to equal opportunities and actively seeks applications from all sectors of the community irrespective of sex, race, colour, nationality, ethnic or national origin, disability, marital status, sexual orientation, having responsibility for dependents, age, religion/beliefs, or any other reason which cannot be shown to be justified.

If the role aligns with your experience, please do apply now!

Service Delivery Architect Consultancy £600-£700 (IIR35) Remote (Occasional client visits) 6-12 months

Oscar Associates (UK) Limited is acting as an Employment Business in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

Senior Consultant- Data Centre / AI / Infrastructure

Senior Consultant - Data Centre / AI / Infrastructure / Automation / Network £600-£700 p/day (Inside IR35) Remote (UK-based, occasional client site travel) 6-12 month contract

Our client, a leading technology consultancy partnering with some of the world’s largest enterprises, is looking a Senior Consultant with strong experience across Data Centre, AI, Infrastructure, Automation, and Networking.

We’re looking for someone who is a senior-level communicator and influencer leading architectural conversations, shape technical direction, and build trust with both internal teams and high-profile end clients.

Key Responsibilities

Lead technical discussions across data centre, AI, automation, infrastructure, and networking domains.

Translate complex technical strategies into actionable outcomes for business stakeholders.

Collaborate with cross-functional teams to ensure delivery of scalable, secure, and future-proof solutions.

Provide thought leadership, mentoring, and direction to technical teams.

Skills & Experience

Proven background in infrastructure, data centre, and network architecture.

Strong exposure to AI-driven automation and modern infrastructure practices.

Great communicator with the ability to influence C-level stakeholders and senior architects.

Experience working in a consultancy environment with enterprise-scale clients.

Ability to operate independently in a remote-first setup while aligning with multiple teams.

Candidates will be required to go through background checks before commencing contract.

Must be eligible to live and work in the specified work location . Some occasional travel maybe required. Only successful candidates will be contacted.

If this sounds like you, apply now!

Senior Consultant - Data Centre / AI / Infrastructure / Automation / Network £600-£700 p/day (Inside IR35) Remote (UK-based, occasional client site travel) 6-12 month contract

Oscar Associates (UK) Limited is acting as an Employment Business in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

IT Operations PM

Randstad Technologies

IT Operations Project Manager

6 Months Contract Outside IR35

£650 to £700 a day

Remote - Occasional travel to Paddington

A large manufacturing company is urgently seeking an Operations project manager with a background working in procurement savings. This role is ideal for a professional with a strong background in manufacturing operations and data-led applications.

As a project manager you will need to have the following skills

Project Management experience

Data Platform and Analytics

Application Development and Interfacing

Be familiar with AI and API interfacing as part of the pilot project.

Manufacturing Operations

Procurement & Cost Savings

Leadership & Teamwork

6 Months Contract Outside IR35 £650 to £700 a day Remote - Occasional travel to Paddington

If you are an experienced project manager with a background in operations and procurement then this is the perfect opportunity for you. If the above seems of interest to you then please apply directly to the AD or send your CV to

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Security Architect SC

Technical Cyber Security Architect (SC)Remote (UK-based) with travel as requiredFull-time, Permanent - Competitive SalarySecurity Clearance: Candidates must hold SC level clearance and meet UK residency requirements

About the Role

We’re looking for a Technical Cyber Security Architect to join our client; a leading Cyber Consultancy that’s shaping the future of secure digital transformation.

This is a unique opportunity to work alongside expert peers in Secure Architecture and Risk Planning, contributing to a culture of collaboration, innovation, and continuous learning. You’ll help clients define and implement security architectures that protect their assets and enable confident decision-making.

Key Responsibilities

Provide secure design advice from project discovery through to disposal.

Ensure solutions align with security standards and architectural patterns.

Promote Secure by Design principles to reduce information risk.

Validate security controls and their effectiveness.

Deliver security architecture for cloud deployments (private/public).

Design and scope IT Health Checks and interpret outcomes.

Identify and mitigate security risks in solution architectures.

Conduct threat modelling and risk analysis.

Design proportional security controls using native cloud technologies.

Produce security architecture artefacts including standards and blueprints.

What You’ll Bring

Prior and proven experience gained as a Security Architect or in a technical cyber role.

Expertise in:

Security legislation (GDPR, PCI DSS, ICO)

Frameworks (ISO 27001, NIST CSF, CIS Controls v8)

HMG/NCSC policies and guidance

Cloud security (AWS, Azure)

Microservice architectures

PKI, Cryptography, Privileged Access Management

Certifications: SABSA, TOGAF, AWS/Azure Architect, CISSP, CISM (or working towards CIISEC/UK Cyber Security Council registration).

Soft Skills: Strong analytical thinking, communication, teamwork, and adaptability.

What’s in it for You

Flexible Working: Remote-first with travel as needed.

Career Development: Continuous learning and professional growth.

Benefits Package: Includes Private Health Care, Cash Back Plan, Buy/Sell Holiday Options, Life Assurance, and more.

**Interested?**Submit your application to learn more about this exciting opportunity.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason***,*** please let us know when you apply or talk to the recruiters directly so we can support you.

HR & Itrent Systems Manager

Reed HR are working alongside a large Not for Profit Professional Body based in Central London who are recruiting for an experienced Itrent Manager on an initial 12 month FTC.

This role is hybrid, so travel into the office is expected.

Job summary

As the HR Systems Manager you’ll use your HR proficiency and technical skills to deploy, maintain and optimise the systems, in particular the iTrent HR and payroll system. You’ll develop and use our systems and data to generate insights to inform strategic decision-making and drive improvements.

To join, you’ll need advanced technical knowledge and experience managing HR and payroll systems, in particular iTrent, as well as generalist HR knowledge and a working knowledge of payroll legislation.You’ll need to be able to use your experience of project management and stakeholder engagement to turn business requirements into technical solutions.

Key Responsibilities

System leadership

• Take ownership of People & OD departmental systems, acting as the primary point of contact for all related projects, initiatives and enhancements.

• Be responsible for the full end-to-end development, integration and maintenance of the Organisations HR and payroll information system, working in conjunction with the software suppliers and the internal IT team.

• Recommend a strategic vision for system and process optimisation, using advanced level knowledge and expertise to support subsequent operational planning processes.

• Lead on general database administration and functional configuration of the HR and payroll system including screens, workflows and reports.

• Review and approve user permissions as required.

Process and service improvement

• Provide expert advice to the People & OD team on the continuous improvement and optimisation of administration processes for the benefit of departmental and other users.

• Work closely with the People & OD Department, HR Department, Payroll, IT department and other stakeholders to maximise the potential of departmental systems, for the benefit of the POD Department and end users, by providing advice, guidance and recommendations on functional system development and integration opportunities and turning user requirements into viable system solutions.

• Lead on the documentation of specific Department processes.

Stakeholder engagement

• Support positive and effective relationships with system and service providers, working with the IT department and other stakeholders to oversee performance of contracts, service levels and KPIs from a functional perspective

• Partner with the organisations IT Department and systems vendors to design, develop, configure, and implement HR and payroll systems and tools, ensuring they meet functional and technical specifications.

• Work closely with the Internal Communications Team to communicate and promote systems and administration provisions and initiatives. • Coordinate and, where appropriate, provide user training and guidance for all system users.

Leadership and management

• Be a key member of the People Services Team, working closely with colleagues to deliver departmental objectives and deploying skills for the benefit of the team.

• Work with the People & OD Management Team to ensure customer satisfaction, including monitoring, investigating and resolving concerns about People & OD systems related services, undertaking root cause analysis and generating sustainable improvements.

Lead Java Developer - FX Trading

Lead Java Developer / Backend Software Engineer London to £135k

Do you have advanced Java technical knowledge combined with team leadership skills?

You could be progressing your career at the Investment Management arm of a global bank.

As a Lead Java Developer you will head up a small, globally distributed team responsible for writing production quality Java code used for pricing and hedging FX instruments and overseeing the algorithms’ performance intraday. You’ll spearhead a project to modernise the FX Risk and post-trade platform to a modern microservices environment, collaborating with the business and providing technical guidance, code reviews and 1-2-1s to develop the engineers in your team and ensure successful delivery.

**Location / WFH:**You’ll be based in the London office and have flexibility to work from home once a week.

About you:

You have a deep knowledge of Java including multithreading

You have team leadership experience, including technical project leadership, code reviews, 1-2-1s, developing others

You have experience in a Capital Markets environment, FX preferred

You have a strong appreciation of low latency systems and code optimisation to ensure speed

You have excellent communication and collaboration skills

You are degree educated in Computer Science or similar technical or numerate discipline

What’s in it for you:

As a Lead Java Developer / Backend Software Engineer you will receive a competitive

Salary to £135k

Bonus

Pension

One day work from home per week

Continuous training and career progression opportunities

Apply now to find out more about this Lead Java Developer / Backend Software Engineer (OOP Java Algorithm) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Technical Project Manager - London

Randstad Technologies

Job Title: Technical Project Manager

Contract Type: 6-Month Contract

Location: London (Hybrid - 2-3 days in office)

**About the Role:**We are seeking an experienced Technical Project Manager to lead the Technology workstream on a complex, large-scale integration project for a leading financial institution. This is a high-impact role where you will drive technology delivery across multiple streams including applications, data, security, and infrastructure, ensuring milestones are met on time, within budget, and to scope with the highest quality.

Key Responsibilities:

Develop, maintain, and manage the integrated technology plan and schedule.

Coordinate delivery across multiple technology streams, proactively managing risks, issues, and dependencies.Plan and execute complex cutovers and hypercare activities under strict governance and compliance standards.

Align internal teams and external vendors to ensure seamless integration and business readiness.

Manage customer-impacting changes with minimal disruption and maintain trusted executive-level communications.

Collaborate closely with Operations and Product leads to synchronize releases and reduce risk across critical technology dependencies.

Skills & Experience:

Proven experience in technical project management within the financial services sector.

Strong background in coordinating application and data integrations.

Exceptional organizational skills and attention to detail.

Demonstrated ability to resolve issues decisively and proactively.

Excellent communication and stakeholder management skills, particularly at executive levels.

Experience managing complex cutovers and hypercare phases.

**Why Join:**This is an exciting opportunity to play a central role in a strategic, large-scale integration project within a prestigious financial institution. You will work with cross-functional teams, influence technology delivery, and contribute directly to the success of a critical business initiative.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

At Wanstor, we’ve been delivering award-winning IT solutions for over 22 years, and we’re proud to keep growing year after year. Today, our team is over 200 strong, filled with talented professionals passionate about technology.

Wanstor stands at the forefront of the industry with a full portfolio of high-quality services. From our award-winning managed services to our robust data and development capabilities, networking and infrastructure expertise, and unparalleled security solutions, Wanstor is renowned in the market for excellence. Our strong customer references provide a solid foundation for your success. If you’re looking for a place where your skills can thrive and grow, you’ll feel right at home here!

We’re looking for a Network Architect to join our talented team. As a Network Architect, your role will be to drive forward continuous improvement within our hosted, managed and customer networks. Reliability, security and stability is of paramount importance in every aspect of your role and will require you to have extensive technical knowledge.

You will be responsible for the network infrastructures that underpin Wanstor’s core business systems. You will design, develop and deliver industry-leading solutions using cutting-edge technology, transforming the way Wanstor and our customers work.

What You’ll Do

Design secure, scalable network solutions aligned with customer IT strategies.

Implement and maintain Fortinet infrastructures, including firewalls, IPS, VPNs, SD-WAN, and WiFi.

Architect LAN/WAN environments with VLANs, routing protocols, segmentation, MPLS, and BGP.

Manage core and datacentre systems (hosting, aggregation, internet access, security).

Lead network projects from design to delivery, ensuring performance, resilience, and compliance.

Research and adopt new technologies, standards, and best practices.

Provide presales support, project planning, and stakeholder feedback.

Mentor junior colleagues and share technical expertise.

Develop new products and work with Sales & Marketing teams on strategy

What You’ll Need

Experience working as a Network Architect or in a similar role

Strong analytical and problem-solving skills; able to simplify complexity and deliver practical solutions.

Experienced with full Fortinet Stack (FortiGate, FortiManager, FortiAnalyzer, FortiSwitch, FortiAP, FortiClient, FortiNAC, SASE) and SD-WAN design.

Skilled in leading complex network projects and providing senior-level technical support.

Knowledge of campus networks and major vendors (Cisco, Juniper, Fortinet, Extreme).

Strategic thinker with the ability to align plans to business goals.

Clear communicator, adaptable to audience, and effective at building relationships.

CCNP/NSE7/Other equivalent technical level qualifications

MuleSoft Developer

Hays Specialist Recruitment Limited

Your new companyI’m recruiting for a very well-known and established university based in the heart of London.Your new roleMy client is looking for an experienced MuleSoft Developer to join them on an initial 6-month contract. You’ll be developing, testing, and deploying integration solutions using MuleSoft’s Anypoint Platform whilst collaborating with cross-functional teams to design and implement scalable and robust integration architectures. You’ll create documentation, including technical designs, specifications, and implementation guides along with troubleshooting issues and provide solutions in a timely manner.What you’ll need to succeedCore Mulesoft Technologies

Mule 4 and Dataweave 2

Anypoint Platform to include:

Mule 4 Runtime Clusters

?Supporting Tools and knowledge

Postman

JSON/XML

Rest APIs

Event APIs (Webhooks)

RAML

SQL

What you need to do nowIf you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

AI Technical Architect

Hays Specialist Recruitment Limited

Location: London (Hybrid/Remote options available) Contract Type: Freelance / Contract Industry: Video Production & Digital Effects Duration: 6 months (with potential for extension)

A leading video production company is seeking a highly skilled AI Technical Architect to join on a contract basis. This is a unique opportunity to work at the intersection of cutting-edge AI and creative media, helping shape the future of generative content and production workflows.Key Responsibilities:

Lead the design and deployment of Generative AI and machine learning systems across high-impact production environments.

Translate creative goals and production constraints into robust technical architectures and actionable plans.

Collaborate with executive stakeholders, technical teams, and creative practitioners to deliver measurable outcomes.

Build prototypes and integrations using modern programming languages and data workflows.

Ensure architecture meets security, compliance, and scalability requirements.

Manage multiple concurrent workstreams in fast-paced, multi-show settings.

Ideal Candidate Profile:

5+ years in technical consulting, solutions architecture, or post-sales engineering roles.

Proven experience working with media, entertainment, or creative industries.

Hands-on expertise with Generative AI technologies and ML-driven systems.

Strong communication skills across technical and non-technical audiences.

Comfortable with rapid prototyping and iterative development.

Collaborative, proactive, and outcome-driven mindset.

Why Join?

Work with a pioneering team at the forefront of AI in media.

Opportunity to influence high-profile productions and creative workflows.

IT Project Manager - Agile, Scrum, Software Development, ITSM, Atlassian

London Hybrid Competitive Salary Benefits

A leading global organisation is seeking an experienced IT Project Manager to join its Global IT PMO team. Reporting to the Senior Manager, Program Management Office, this role will be responsible for planning and delivering IT and technical projects with stakeholders and teams across the US, Europe, and Asia Pacific.

The Role

The IT Project Manager will:

Lead small to medium complexity projects and support the delivery of larger programmes under PMO guidance.

Develop and maintain project plans, timelines, risk/issue trackers, and status reports.

Coordinate cross-functional teams, manage dependencies, and ensure timely delivery of milestones.

Facilitate project meetings, prepare documentation, and track key decisions and actions.

Define project scope, goals, resources and budgets, ensuring delivery within agreed parameters.

Lead projects through the Solution Development Life Cycle (SDLC), ensuring adoption of best practices.

Create and maintain project management deliverables such as charters, rollout strategies, and progress reports.

Identify risks and issues, implement mitigation strategies, and manage scope/budget changes effectively.

Support global teams, occasionally working non-standard hours and undertaking limited travel when required.

About You

The successful candidate will have:

6-8+ years’ experience managing IT projects/programmes within technology groups.

At least 3 years’ experience with Agile, Scrum, or hybrid methodologies.

Bachelor’s degree (or equivalent experience); PMP, CAPM, CSM or similar certifications desirable.

Strong knowledge of project management best practices, software development processes, and ITSM standards.

Advanced proficiency in Microsoft Office and Atlassian tools (Confluence, Jira, Portfolio, Structure).

Excellent communication, stakeholder management, and leadership skills, with the ability to motivate and guide cross-functional teams.

What’s on Offer

An opportunity to play a key role in a global IT function.

Exposure to a wide range of international projects with business impact.

A collaborative environment where professional development is supported.

Competitive salary and benefits, with hybrid working flexibility.

This role is ideal for a highly organised, proactive IT Project Manager who thrives in a global, fast-paced environment and enjoys driving successful project delivery.

Unified Communications Engineer

Location: London (Hybrid)

Salary: Competitive Benefits

Are you an experienced Unified Communications Engineer looking to lead on cutting-edge collaboration and telephony technologies? This is an exciting opportunity to join a forward-thinking global organisation at a pivotal time of transformation, as they modernise their communication platforms and migrate from legacy systems to cloud-based solutions.

The Role

As a Unified Communications Engineer, you’ll be the technical lead for enterprise-wide communications platforms, including Microsoft Teams (chat, conferencing, calling), Microsoft 365 email, OneDrive, and Cisco Unified Communications Manager (CUCM). You’ll play a key role in migration projects, ensuring seamless transitions to Microsoft Teams Calling while driving optimisation and enhancing user experience across the business.

Key Responsibilities

Administer, configure, and optimise Microsoft Teams for enterprise chat, video conferencing, and voice (including PSTN integration).

Manage Microsoft 365 Mail and OneDrive, focusing on reliability, security, and compliance.

Oversee the transition from Cisco CUCM to Microsoft Teams Calling.

Design and implement call routing, hunt groups, auto-attendants, and call queues.

Troubleshoot complex issues across telephony and collaboration platforms.

Support change management and deliver training to ensure high adoption of new tools.

Collaborate with IT leadership, business stakeholders, and vendors to align UC solutions with organisational needs.

About You

We’re looking for someone with:

5-8 years’ IT experience, including at least 3 years in Unified Communications.

Proven expertise in Microsoft Teams administration (chat, conferencing, enterprise voice).

Strong hands-on experience with Microsoft 365 (Exchange Online, OneDrive, SharePoint, Entra).

Background in Cisco CUCM administration and telephony migration.

Knowledge of VoIP, SIP, QoS and related telephony protocols.

Relevant certifications such as Microsoft 365 Teams Administrator or Cisco CCNP Collaboration (desirable).

Excellent communication skills, with the ability to engage both technical and non-technical stakeholders.

Why Apply?

This role offers the chance to be at the forefront of a major UC transformation project, where you’ll directly influence the technology strategy and help deliver a modern, cloud-first communication environment. You’ll work with a global team, cutting-edge platforms, and enjoy ongoing opportunities for professional growth.

Software Technical Architect

Lead Technical Architect**£75,000-£95,000Fully remote - occasional client workshops may be requiredSC Clearance eligibility required**

Sanderson Government and Defence are working with a leading digital consultancy who have been selected as a strategic delivery partner for a government agency’s transformation programme.

They are looking for a Lead Technical Architect to join the a high-profile initiative aimed at modernising legacy systems and improving data validation across the client’s business gateway.

This is a fully remote role, working within a blended agile team of consultancy and end client staff. You’ll be responsible for shaping technical direction, leading architectural design, and ensuring alignment with the end client’s reference architecture.

To be considered, you’ll need:

Strong background in technical architecture within large-scale digital programmes

Deep understanding of API Gateway design and enhancement

Experience modernising legacy systems and migrating to cloud-native platforms

Solid grasp of AWS (API Gateway, Lambda, S3, VPC)

Familiarity with Java, DB2, relational databases, and network concepts

Desirable experience includes:

OpenAPI schemas, Kubernetes, Spring Boot, JBOSS/EJB, Postgres, Python

Prior work within UK government departments

Ability to mentor and lead technical teams

This is a key role in a multi-disciplinary agile team, contributing to high-level and low-level designs, architectural governance, and knowledge transfer across the end client’s internal teams.

Reasonable Adjustments:

If you need any help or adjustments during the recruitment process for any reason***,*** please let us know when you apply or talk to the recruiters directly so we can support you.

IT Security Lead - Global Law Firm

Salary: up to £80,000

Our client, a leading international law firm, is looking for an IT Security Lead to join their London office.

This is a key role within their IT function, protecting critical systems, data and infrastructure while shaping security strategy. Reporting to the Infrastructure Manager, you’ll be the go-to SME for security operations, incident response, architecture and vendor management. This is a hybrid opportunity, 2 days per week in the central London office.

What you’ll be doing:

Monitoring and analysing network traffic and logs for threats

Managing security tools - Firewalls, IDS/IPS, endpoint protection

Driving vulnerability assessments and audits

Leading on incident response and remediation

Developing security policies, standards and best practice

Acting as an escalation point for the business and projects

What we’re looking for:

Significant hands-on security experience in corporate environments

Strong knowledge of network security, systems hardening and security frameworks (NIST, ISO27001, Cyber Essentials etc.)

Ideally CISSP, CISM or equivalent certifications

This is a fantastic opportunity to make an impact at a forward-thinking, high-growth law firm that truly invests in its people.

If you’re an experienced IT Security Lead looking for your next challenge, we’d love to hear from you.

Senior/Lead Data/ML Engineer

Our client at very well known Retail Giant is currently looking to hire a Senior/Lead Technical Engineer (Data/ML) based from their offices in London.

As the Senior/Lead Tech Engineer (Data/ML) you will be part of build a small team and mentor during the build phase along with the Engineering Manager.

Job Title: Senior/Lead Tech Engineer (Data/ML)Location: London / Hybrid - Once a Week (Thursday) in LondonDuration: 6 MonthsDay Rate: £550 to £575prd (Inside IR35 - Umbrella)

This is a greenfield based project with crossover from another tech team conducting a similar model. Interaction with Key Stakeholders and like minded Tech Teams is essential.Working alongside the Data Scientist and Data Architect

Experience at a Tech Lead / Senior Engineering Level

Mentoring / Team Leading experience - Nice to have (Full Support from Engineering Manager)

Hands on development/engineering background

Machine Learning or Data background

Technical Experience: PySpark, Python, SQL, Jupiter

Cloud: AWS, Azure (Cloud Environment) - Moving towards Azure

Nice to Have: Astro / Airflow, Notebook

Reasonable Adjustments:

If you need any help or adjustments during the recruitment process for any reason***,*** please let us know when you apply or talk to the recruiters directly so we can support you.

Senior Graphics Engineer

Job Title: Senior Graphics Engineer

Location: London, UK (Hybrid Working)

Type: Contract (Inside IR35)

Duration: 12 Months

Key Responsibilities:

Develop GPU driver innovations to optimize real-time rendering pipelines and deliver class-leading performance.

Implement standard features and extensions for APIs like OpenGL ES and Vulkan.

Analyse graphics workloads, identify bottlenecks, and optimize GPU drivers and API usage.

Develop optimal middleware libraries based on graphics and compute APIs.

Bring up and evaluate new devices, collaborating with other teams to define and implement GPU requirements and integrate them into the operating system.

Take technical responsibility for significant sections of assigned projects.

Translate complex functional and technical requirements into detailed design.

Requirements:

A degree in Computer Science, Electronics, Natural Science, Mathematics, Engineering, or a related discipline (or equivalent industrial experience).

Expertise in computer graphics, including design and implementation of OpenGL, OpenGL ES, Vulkan, or DirectX APIs.

A proven track record in real-time embedded software development, preferably for mobile devices, with a strong understanding of modern development environments.

Understanding of computer graphics pipelines and modern mobile GPU architectures.

Expert proficiency in C and C++ programming languages.

System-level performance analysis and strong OS fundamentals (memory management, multithreading/synchronization, user/kernel mode interaction).

Excellent communication and teamwork skills with a results-oriented attitude.

Proficiency in problem-solving and debugging.

Desirables:

Experience working on the Android Graphics Stack (Compositor, HWUI, HAL).

Experience with ARM 64-bit architecture.

Experience developing system software for Android OS.

Familiarity with CPU and GPU hardware architectures.

Java and/or Python development experience.

Understanding of neural networks and their applications in graphics (Neural Graphics Processing).

D365 Senior Developer - D365 Finance, APIS, Azure

Hays Specialist Recruitment Limited

Up to £515 per day (Inside IR35)

Remote / must be UK based

12 months

We’re looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments.

Key Requirements:

5+ years in D365 F&O development (X , data entities, extensions).

Experience with general ledger, journals, financial dimensions, and intercompany transactions.

Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines.

Proficient in Power BI: report creation, configuration, and export.

Skilled in workflows, security roles, SSRS, and unit testing (SysTest).

Familiar with DMF, OData, batch processing, and error handling.

Ability to optimize performance for high-volume transactions.

Strong documentation and collaboration skills.

Nice to have:

Integration experience across systems and platforms.

If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

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Frequently asked questions

What is a Technical Architect?

A Technical Architect is a senior IT professional responsible for designing and overseeing the implementation of technical solutions, ensuring they align with business goals and technical requirements.

What skills are required for Technical Architect jobs in London?

Key skills include expertise in software architecture, cloud technologies, system integration, strong communication abilities, and experience with platforms like AWS, Azure, or Google Cloud.

What is the typical salary range for Technical Architects in London?

Salaries typically range from £70,000 to £110,000 per year, depending on experience, sector, and specific company requirements.

How can I apply for Technical Architect jobs in London on Haystack?

You can browse available Technical Architect positions on our website, create a profile, upload your CV, and apply directly through the job listings.

Do I need specific certifications to become a Technical Architect in London?

While not always mandatory, certifications such as TOGAF, AWS Certified Solutions Architect, or Microsoft Azure certifications can enhance your profile and improve job prospects.

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