Make yourself visible and let companies apply to you.
Roles

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!
Filters applied
London
Technical Architect
Search
Salary
Location
Remote preference
Role type
Seniority
Tech stack
Sectors
Contract type
Company size
Visa sponsorship
AI Technical Consultant
Lloyd Recruitment - Epsom
Weybridge
In office
Mid
£60k - £70k
RECENTLY POSTED
aws
java
python
Job Title: AI Technical Consultant
Location: Weybridge, Surrey
Contract: 12-month FTC
Salary: 60,000 - 70,000 (DOE)
About the Role
Seeking an experienced AI consultant (3-5 years in AI/ML roles, 8-10 years total) to design, implement, and advise on AI/ML solutions that deliver business value. You’ll work with cross-functional teams to define strategy, build innovative solutions, and guide stakeholders on AI adoption.
Key Responsibilities
Build and refine LLM/SLM-based AI solutions (RAG, fine-tuning, prompt engineering).
Design and oversee AI solution architecture (cloud & on-prem).
Develop and deploy ML models into production.
Identify AI opportunities aligned with business processes
Prototype, test, and optimize AI applications.
Stay current with open-source AI/ML frameworks.
Communicate AI capabilities and set realistic expectations.
Essential Skills & Experience
Strong expertise in GenAI, NLP, and ML.
Hands-on experience with LLMs/SLMs, Python, Java, SQL/NoSQL.
API development, web scraping, data integration.
On-prem AI model deployment, open-source frameworks (e.g. Hugging Face, LangChain).
Strong consulting and communication skills.
Preferred
Knowledge of data structures, algorithms, and solution architecture.
Experience with cloud AI platforms (AWS, Azure, GCP).
Broad ML knowledge and prior consulting with international teams.
Refer a friend and earn up to 500!
Unfortunately, due to high numbers of applications, we are only able to respond to shortlisted applicants. If you have not heard from us within 5 days, please assume that you have not been shortlisted on this occasion.
By applying for this vacancy, you accept Lloyd Recruitment Services Privacy and GDPR Policy which can be found on our website and therefore gives us consent to contact you.
Lloyd Recruitment Services are acting as a recruitment agency in relation to this vacancy and are an equal opportunities employer.
JM15178
Workday Integration Engineer
Tria
Wembley
Remote or hybrid
Mid
£47k - £57k
RECENTLY POSTED
TECH-AGNOSTIC ROLE
12 month Fixed Term Contract
47k - 57k DOE
Hybrid - 1 day every 2 weeks
Hampshire or West London
We’re partnering with a leading organisation who are looking for an experienced Workday Integration Engineer to join their team on a 12-month fixed-term contract. Due to the scale of ongoing integration projects, there is strong potential for extension. Hands-on knowledge of Workday integration tools including Studio would be preferred.
As they roll out Workday across their HR and Finance teams, you’ll play a key role in building and maintaining the integrations that underpin this transformation.
What You’ll Be Doing
Collaborate with the third-party vendor to align on business needs and support successful delivery
Build, test, and deploy near real-time Workday-native integrations using tools such as Workday Studio, EIB, and APIs
Work closely with stakeholders to understand requirements and select the most effective integration design and tooling
Diagnose and resolve integration issues, using appropriate debugging and monitoring tools
What We’re Looking For
Proven experience in a similar integration role with Workday
Hands-on knowledge of Workday integration tools (Studio, EIB, API)
Solid understanding of integration lifecycle, from development to deployment
Strong communication skills and the ability to build relationships with technical and non-technical stakeholders
Benefits
450 annual flex-pot for lifestyle benefits + discounted shopping and cycling schemes
25 days holiday + bank holidays (increasing to 30 days with service)
Up to 12% employer pension contribution
Life insurance (4x salary)
Flexible working with a focus on work-life balance
Options for private medical, dental, and critical illness cover
Work Location
Primarily remote, with just 1 day every 2 weeks on-site. Choose between:
West London - well-connected via public transport
Hampshire - free on-site parking, close to local station
IFS Solution Architect Outside IR35
Cathcart Technology
London
Hybrid
Mid
£600/day - £700/day
RECENTLY POSTED
TECH-AGNOSTIC ROLE
6 months initial contract with view to extend long term
600 to 700 per day depending on experience
Outside IR35
Hybrid UK
An award winning organisations are currently going through a substantial transformation, implementing IFS.
The ideal candidate will possess deep expertise in IFS applications, particularly in areas such as Finance, Supply Chain, Field Service Management (FSM), and HRIS, and will play a pivotal role in delivering scalable, secure, and efficient solutions.
Interviews are being scheduled ASAP.
Skills & Experience:
Fully attuned to the software development lifecycle and application of best practices
Proficiency in IFS Applications, including modules such as Finance, Supply Chain Management and Human Resources. Experience with IFS Cloud is advantageous.
Strong knowledge and understanding of business needs, with the ability to establish and maintain a high level of customer communication, trust and confidence.
Natural ability to communicate complex issues to non specialists, manage through influence, and get things done with and through people in a direct, fair, success oriented way.
Detailed oriented, organised, and able to quickly prioritise while managing parallel tasks.
Effective influencing and negotiating skills in an environment where this role may not directly control resources.
Good understanding of Cloud based technologies, and enterprise architecture principles
Please apply and or call Craig at Cathcart Technology
Endur Technical Architect
Harvey Nash
London
Fully remote
Mid
Private salary
RECENTLY POSTED
react
terraform
aws
git
mongodb
kubernetes
+2
Job Title: Endur Technical Architect
Location: 60/40 with 3 days in Canary Wharf OR Remote
Start Date: ASAP
Contract Length/End Date: 31st December with possibility of extension
Working hours: 40 hrs/week
Role Overview
Work directly with subject matter experts, Product owners. designers, technical leads and other architects to re-architect/design needs of next generation Gas and Power trading platform with modern technologies, consistent with business and technology strategies. Deep knowledge of energy trading and risk management processes across front, middle and back-office functionalities with an emphasis on physical trading.
Expert in designing the architecture of modern, bespoke Energy trading systems, including documenting and agreeing key design decisions and trade-offs across diverse stakeholders.
Perform requirement gathering, analysis and design across functional, non-functional technical, and operational domains.
Thought leader in respective domain, will be the key advisor to delivery and design reviews.
Handling business changes and managing stakeholder expectations
Manage communication across multiple teams, vendors, and consulting staff
Knowledge of deal lifecycle
Qualifications
Numerate degree
Key Skills
Strong functional understanding of physical trading preferably Gas and/or Power, ideally including complex contract optionality and portfolio and schedule optimization, Knowledge of Options modelling and Dependency graphs.
Demonstrated capability across most of the following architecture facets:
Data - Deep knowledge of data modelling for both transactional and analytic use cases, familiarity with real-time reporting techniques (including distributed caching), vendor and bespoke reporting tools, data migration and reconciliation techniques and tools. Familiarity with MongoDB unstructured Database.
Technical - Hands-on Expert with demonstrated experience in architecture and design patterns, their usage, implementation and implications, including documenting and agreeing the design inclusive of the trade-offs for commodity trading systems. Familiarity with core AWS product offerings; code development (C#/Java); microservice containerization tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform)
Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques.
Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization.
Thorough understanding of Agile delivery methodology
Candidate must be able to work in small teams, or alone, for project delivery
Candidate should be able to exhibit strong analytical and problem-solving skills, to deliver high quality solutions to clients
Candidate should be able to liaise with other teams to resolve cross functional issues
Must have excellent written and verbal communication skills
Technical Must Have Skills: Familiarity with Microservices architecture and related technologies (containerization, messaging, caching). Familiarity with Cloud hosting (AWS).
Functional Must Have Skills: Full Lifecycle Physical Energy Trading Experience, ideally in Power and/or Gas markets.
Information Security Regulatory Support Lead
Huxley Associates
London
Fully remote
Leader
£550/day
RECENTLY POSTED
TECH-AGNOSTIC ROLE
Lead Security Controls Assessor - NIS2 Readiness (Financial Services)
Contract Type: 6-Month Rolling Contract
Rate: 550/day (Inside IR35)
Location: Fully Remote
My client, a leading organisation in the Financial Services sector, is currently seeking two experienced contractors to join their Security Controls Assessor team. This is a strategic initiative focused on preparing for the upcoming NIS2 regulation, with a strong emphasis on regulatory assurance and cross-entity alignment.
Key Responsibilities
Lead and support activities related to NIS2 readiness and regulatory assurance
Assess existing policies, standards, processes, and technical environments against NIS2 and other relevant frameworks
Conduct entity-specific assessments and asset-level assurance testing
Assist with NIS2 registration processes and incident reporting readiness across multiple entities
Collaborate with stakeholders across business units, project teams, and EGSO to ensure cohesive support
Document the organisation’s regulatory posture, ISRG priorities, gaps, risks, and sustainability of compliance efforts
Provide regular updates to the EMAP Information Security Regulatory Governance Specialist
This is a fantastic opportunity to contribute to a high-impact regulatory programme within a complex, multi-entity financial environment. If you’re experienced in security controls assessment, regulatory compliance, and NIS2 alignment, this role offers both strategic influence and operational depth.
Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.
To find out more about Huxley, please visit (url removed)
Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales
Network Architect
Morgan Law
Multiple locations
In office
Mid
£580/day - £600/day
TECH-AGNOSTIC ROLE
**Summary:**An NHS Trust is seeking a Network Architect to help with a major upgrade project for 6 months.
The Network Architect will play a critical role in the successful delivery of the Server Farm (SF), Data Centre Consolidation (DCC) and Telephone infrastructure upgrade (TIU) projects. This individual will be responsible for designing and implementing scalable, secure, and resilient network solutions that support the consolidation and transformation of existing data centre infrastructure.
Lead the design and architecture of network solutions to support the migration and consolidation of services across multiple data centres.
Work with the Head of Infrastructure in running the architecture review board sessions
Ensure network designs align with enterprise standards, security policies, and business continuity requirements.
Collaborate with cross-functional teams including infrastructure, server, storage, security, and application teams to deliver an integrated solution.
Define and document the current state and target state of the network architecture, including L2/L3 topology, VLANs, routing protocols, firewalls, and load balancing.
Plan and support network changes, including upgrades, new deployments, and decommissioning activities in coordination with project timelines.
Identify and mitigate risks associated with network performance, redundancy, and scalability during consolidation.
Provide technical leadership for the implementation and troubleshooting of complex networking issues during migration phases.
Ensure appropriate network monitoring, failover mechanisms, and security controls are in place and validated.
Produce and maintain detailed network architecture diagrams and documentation for operational handover.
D365FO Developer // London - Hybrid
Akkodis
Multiple locations
Hybrid
Mid
£50k - £70k
dynamics-crm
visual-studio
Seeking a skilled D365 FO Developer to design, build, and maintain custom solutions within Microsoft Dynamics 365 Finance & Operations. The role involves translating business requirements into technical specifications, developing and testing code in X , and ensuring seamless integration with internal systems.
Key Responsibilities:
Translate business needs into technical specifications
Design, develop, and deploy custom D365 FO solutions
Maintain and support the D365 platform, including integrations
Conduct unit testing and troubleshoot technical issues
Manage code releases and ensure system updates are implemented
Create and maintain technical documentation
Collaborate across IT, transformation, and business teams
Requirements:
Essential:
3-5 years of experience as a D365 FO Developer
Strong skills in X , LCS, ADO, and Visual Studio
Experience with D365FO configuration, customisation, and deployment
Knowledge of Azure Portal, Power Platform, and cloud principles
Ability to manage projects and deliver end-to-end solutions
Desirable:
Experience in the retail industry
Familiarity with cross-functional collaboration in complex organisations
Please note you must already be eligible to work in the UK, and the role is part office based in Central London.
Please contact Kamilla Ryan url removed .
Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law.
Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers.
By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website.
Mechanical Engineer
NTT Ltd Group Services United Kingdom Limited
Essex
In office
Mid
Private salary
TECH-AGNOSTIC ROLE
As the Mechanical Engineer, you will be part of the EMEA Mechanical Engineering Team, based in the UK, providing support to regional engineering teams in the construction, commissioning, management and operation of their mechanical and cooling infrastructures. You will provide consistent regular reporting of the condition and efficiency of the countries mechanical and cooling systems, identifying any areas for improvement, whilst identifying and planning improvement projects and regional update on progress. You will review and approve the technical aspects of high-risk changes and incident reports, provide support to countries during incidents and will lead any follow up investigation and analysis as required.
What will you do?
Assist the regional team in defining and implementing the Tech-Ops standards and ensure that the mechanical infrastructure is effectively maintained and optimized
Keeps up to date with data center developments in terms of new technology in close co-operation with our suppliers and maintenance providers
Develop realistic plans, set goals, align plans with Tech-Ops objectives and coordinate with others team members
Regularly review and develop commissioning procedures including subcontractors
Conduct meetings regarding the operational performance of the mechanical infrastructure and provide regular updates to the Stakeholders
Instruct regional personnel also in the mechanical & cooling infrastructure in close collaboration with the training department
Carry out Scenario training for the site team with a view to continuous improvement
Be part of the EMEA call out team as required, including travel to support sites in mainland Europe
Carry out reviews and comment on designs of complex mechanical infrastructures (including interdependencies with other disciplines such as electrical, controls, and fire/life safety)
What are we looking for?
Several years of experience working in mission critical mechanical environment within a large company, IT/Telecoms industry preferred
Several years of experience in leading a technical management function
Industry or manufacturer training in HVAC, (including, but not limited to) cooling systems, evaporative cooling, pumps, pressure systems
Subject matter experts understanding of operational and maintenance governance principles
Awareness of Root Cause Analysis management frameworks highly desirable
Proficient in English language both written and verbal
A strategic thinking individual with a structured and target-oriented approach
Demonstrable skills in technical management, and collaboration
Outstanding relationship-builder and communicator, both internally and externally
Ability to work in multinational, interdisciplinary and culturally diverse teams
What we offer you
An agile company culture with short decision-making paths and plenty of opportunities to show personal initiative
Flexible working time models and mobile working (depending on your role)
Allowance for the use of public transport and job bikes
Allowance for the use of health and wellness
Individual training and development opportunities
Numerous other additional benefits such as birthday vouchers, employee advisory program, employee referral scheme, lunch allowance, company events, etc.
We look forward to hearing from you!
About the Global Data Centers division of NTT DATA
NTT Global Data Centers is ranked as one of the top three leaders worldwide by IDC in their Colocation and Interconnection Services MarketScape, spanning more than 20 countries and regions including North America, Europe, Africa, India and APAC.
As a neutral operator, we offer access to multiple cloud providers, a large variety of Internet Exchanges and telecommunication network providers including our own IPv6 compliant, tier 1 global IP network. Our clients benefit from tailored infrastructure and experience consistent best practices in design and operations across all of our reliable, scalable and customizable data centers.
Working at NTT Global Data Centers
At NTT Global Data Centers, we stand as one of the largest data center providers, dedicated to powering the digital infrastructure of tomorrow. Innovation is in our DNA. We thrive on pushing boundaries, exploring new possibilities, and embracing emerging technologies to continuously ensuring that every interaction, every solution, and every outcome exceeds our clients expectations. Our values are the guiding principles that shape our culture, define our identity, and propel us forward as one of the industry leaders.
Interested in becoming part of an agile international team and actively shaping the digital infrastructure of tomorrow?
Join our team by submitting your application today!
Azure Cloud Architect
Tria
London
Hybrid
Mid
£700/day - £900/day
aws
Are you an Azure Cloud Architect with a background working in enterprise scale environments? Have you worked in mature cloud-native landscapes and have a solid view of “what good looks like” from a Cloud strategy? If so, apply for this very exciting new opportunity in central London.
This contract will initially run until the end of March but will be extended. The programme will run for at least the next 2-3 years. The contract will be Inside IR35 and you will need to be in the central London office 3 days per week.
The successful Azure Cloud Architect will join an instantly recognisable household name at an unprecedented period of modernisation. The Cloud strategy is currently in its infancy, and this role offers a unique opportunity for an experienced Azure Cloud Architect to join at the ground level and play a pivotal role in shaping a best-in-class, in-house Cloud Architecture and Engineering function.
Key to this role will be the Azure Cloud Architect’s ability to build relationships and to establish frameworks, guidelines and technical toolkits which meet needs from across the organisation. It is a multi-cloud environment, but strong Azure experience is essential for this role.
The Role
As an Azure Cloud Architect, you will:
Design, implement, and evolve cloud solutions with a primary focus on Microsoft Azure within a multi-cloud environment.
Engage with senior stakeholders across the business, providing clear technical direction and building trusted relationships.
Contribute to the establishment of cloud governance, best practices, and architectural standards.
Act as a key influencer in developing a cloud-first culture, ensuring scalability, resilience, and security across solutions.
Work closely with engineering teams to deliver high-quality, future-proof architectures.
Key Requirements
Proven expertise in Microsoft Azure cloud-native architecture and services.
Experience working within multi-cloud environments (AWS, GCP desirable but not essential).
Strong stakeholder management and relationship-building skills, able to operate confidently at all levels of the organisation.
Background in shaping cloud roadmaps and architecture frameworks in complex enterprise environments.
Knowledge of cloud security, governance, and compliance best practices.
What’s on Offer
The chance to join a high-profile, long-term transformation programme from the very start.
Work with a globally recognised brand on the journey to building a world-class in-house cloud capability.
Hybrid working model: 3 days onsite in Central London.
Initial 6-month contract (to end March 2026, with extensions expected over 2-3 years)
Flexible rate - expected to be in the range of (Apply online only) per day, inside IR35
To find out more, please apply online and I will be in touch to discuss.
Head of IT
Robert Half
London
In office
Mid
£90k - £110k
TECH-AGNOSTIC ROLE
The Company
My client is a owner managed, British. Retail, Manufacturing and Publishing business based in Central London with stores situated around the world. Organic growth sees them recruiting for a Head of IT to join their team.
The Role
Develop and execute IT strategy aligned with business goals.
Drive digital transformation for enhanced customer experience and operational efficiency.
Collaborate with leadership on technology opportunities and long-term planning.
Ensure technology investments align with company objectives.
Manage and mentor IT team.
Foster a culture of innovation and continuous learning.
Ensure alignment between IT team objectives and broader business goals.
Protect digital assets, customer data, and internal systems.
Ensure compliance with regulations and internal security protocols.
Develop and manage disaster recovery and business continuity plans.
Evaluate and manage third-party vendors.
Manage IT budget for cost-effective and high-quality solutions.
Negotiate contracts with technology providers.
Oversee IT systems supporting retail and publishing operations.
Ensure reliable IT infrastructure.
Lead software development and maintenance projects.
Manage telephony strategy and operations.
across retail and publishing operations.
Optimise workflows for efficient sales, content creation, and distribution.
Monitor system performance and minimise downtime.
Your Profile
To apply for this role you will have at least 10 years in an IT Leadership capacity. You will have managed staff but will be happy to be hands on where necessary. Based on the nature of the business, candidates from Retail, FMCG, Manufacturing or Publishing will be advantageous. You will motivated to work for an owner led business that has a family feel and be motivated to go above and beyond. This role is 5 days a week in the office during the 6 month probation. 3-4 after.
Salary & Benefits
£100,000 - £110,000
Robert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. Robert Half is committed to diversity, equity and inclusion. Suitable candidates with equivalent qualifications and more or less experience can apply. Rates of pay and salary ranges are dependent upon your experience, qualifications and training. If you wish to apply, please read our Privacy Notice describing how we may process, disclose and store your personal data: gb/en/privacy-notice.
AWS Enterprise Architect - SC Cleared
Adecco
Bromley
Remote or hybrid
Mid
£80k - £85k
aws
terraform
itil
kubernetes
ansible
Permanent/Full-time - 85K + 5% bonus
UK Wide - Remote, with occasional travel to end client
Due to the nature of the end client, this role requires ACTIVE SC CLEARANCE, and we can only offer the position to SOLE UK NATIONALS.
Are you an experienced Enterprise Architect with a passion for AWS cloud? We’re looking for talented architects to join our growing team and help deliver high-quality, modern cloud services to UK clients.
You’ll work in small, focused teams alongside engineers, architects, and stakeholders, designing and delivering innovative cloud-native and hybrid solutions that make a real impact.
This is a fantastic opportunity to grow your career, strengthen your technical expertise, and be part of a collaborative environment where people and outcomes matter.
What You’ll Do
As an Enterprise Architect, you will:
Act as the technical authority for cloud architecture and infrastructure governance.
Design, review, and evolve cloud-native and hybrid architectures.
Work closely with platform engineering and infrastructure teams to ensure architectural alignment.
Stay hands-on with Infrastructure as Code (IaC), deployments, and environment configuration.
Support and mentor junior engineers.
Build strong relationships with both clients and internal teams.
Act as the technical governance lead rather than a people manager
What We’re Looking For
We’d love to hear from you if you bring:
Experience in Enterprise Architecture, particularly with AWS-based solutions.
A strong background in automation and delivery through code.
Hands-on experience with tools and technologies such as AWS, Terraform, Ansible, CI/CD pipelines, Kubernetes, GitHub.
Knowledge of managed services and post-implementation support.
Familiarity with ITIL frameworks and Agile delivery.
A background in infrastructure and networking (a plus).
Comfortable with critical national infrastructure and incident response.
Software Engineer
Experis
London
In office
Mid
£65k - £90k
TECH-AGNOSTIC ROLE
Software Engineer - London (Onsite, 5 Days per Week)
65,000 - 90,000 + Benefits
We are representing a specialist SME consultancy partnered with a leading AI and technology firm, delivering mission-critical solutions to the UK Defence and Intelligence community.
This is a unique opportunity to work on a cutting-edge new platform that is shaping the future of national security. The role is language-agnostic - we’re not looking for expertise in one specific technology stack. Instead, we want highly skilled software engineers with strong experience in at least one modern programming language and the ability to quickly adapt and learn new ones.
You will be working at the forefront of innovation on programmes of national importance, collaborating with some of the brightest minds in the industry. This is a full-time, London-based position (onsite, Monday-Friday).
Due to the sensitive nature of the work, candidates must hold current SC or DV clearance.
If you’re a high-calibre engineer seeking to apply your skills to projects that truly make a difference, we want to hear from you.
Apply now to join a forward-thinking team where your expertise will directly contribute to the UK’s national security capabilities.
People Source Consulting Ltd is acting as an Employment Agency in relation to this vacancy. People Source specialise in technology recruitment across niche markets including Information Technology, Digital TV, Digital Marketing, Project and Programme Management, SAP, Digital and Consumer Electronics, Air Traffic Management, Management Consultancy, Business Intelligence, Manufacturing, Telecoms, Public Sector, Healthcare, Finance and Oil & Gas.
Salesforce Developer
Yolk Recruitment
London
Hybrid
Mid
£70k - £90k
salesforce
javascript
apex
Salesforce Developer - Morden (Hybrid) - 70,000 - 90,000 + benefits
Yolk Recruitment are excited to be working with a leading global business that continues to grow and invest heavily in their Salesforce capability. Recognised for their collaborative culture and commitment to employee development, they’re offering a great opportunity for an experienced Salesforce Developer to make a real impact.
We’re looking for a Salesforce Developer to join their dedicated team. You’ll design, build, and customise solutions that support business goals, enhance user experience, and ensure the platform is used to its full potential. Alongside hands-on development, you’ll play a part in driving best practice and contributing to continuous improvement across the function.
What you’ll be doing:
Design, develop, test, and deploy Salesforce solutions including Apex, Visualforce, Lightning Components, and Lightning Web Components (LWC).
Configure Salesforce with Flows, Validation Rules, and Page Layouts to meet business needs.
Build and maintain integrations with external systems using APIs and middleware tools.
Troubleshoot and resolve issues in development and production environments.
Translate business requirements into well-structured technical designs.
Support new Salesforce features and releases by assessing and implementing relevant enhancements.
Work closely with Product Owners, Business Analysts, QA, and other developers to deliver high-quality solutions.
Take part in code reviews, knowledge sharing, and documentation to support maintainability and team learning.
The skills you’ll need:
5+ years’ experience as a Salesforce Developer with strong expertise in Apex, Visualforce, and LWC.
Proven experience integrating Salesforce with other platforms via REST/SOAP APIs or middleware (e.g. MuleSoft).
Hands-on experience with Experience Cloud customisation and configuration.
Strong knowledge of Salesforce security, governor limits, and performance best practices.
Proficiency in JavaScript and building custom UIs on the Lightning platform.
Familiarity with code versioning (Bitbucket/Git) and project tracking tools (JIRA/Confluence).
Salesforce certifications - Platform Developer I essential, Developer II or Architect certifications a bonus.
Knowledge of agile methodologies and Salesforce DevOps processes.
Experience with data migration tools (Data Loader, ETL).
Company Benefits:
Enhanced Parental Leave
Generous annual leave
Healthcare Plan
Annual Giving Day - an extra day to give back to yourself or your community
Cycle-to-work Scheme
Pension scheme with employer contributions
Life Assurance - 3X base salary
Rewards Program - access to discounts and cashback
LinkedIn Learning Licence for upskilling & development
Ready to Apply?
Please apply with your latest CV.
Know someone who’d be great for this role? We offer a referral scheme-just get in touch!
Note: We do our best to respond to every application, but due to volume, we can’t always guarantee it. If you haven’t heard back within 7 days, unfortunately, you haven’t been successful this time. Keep an eye on our site for new opportunities!
Senior Software Engineer
Retelligence
London
In office
Senior
£80k - £95k
sql
Job Title: Senior Software Engineer
Reporting to: Lead Engineer
Role Purpose:
As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally lead innovation or software design initiatives.
Key Responsibilities:
Develop new features with a strong focus on high-quality code.
Conduct peer code reviews to ensure quality and adherence to best practices.
Participate in daily stand-ups, change analysis sessions, and technical presentations.
Provide guidance on tool and environment adoption where necessary.
Continuously develop knowledge of the business domain and gain a deeper understanding of the organization’s objectives.
Work closely with tech leads, engineers, testers, and other personnel to deliver high-quality products.
Take ownership of initiatives related to innovation or addressing technical debt.
Design, document, and communicate system solutions with a balanced focus on time, quality, cost, and performance.
Collaborate with colleagues across the organization to gain buy-in and feedback on proposals and designs.
Required Knowledge & Experience:
Essential:
Strong proficiency in C# at a commercial level.
Solid experience with .NET Core and related open-source technologies.
Knowledge of Object Orientation, SOA, and relevant design patterns.
Experience with modern software development practices, including agile methodologies, version control, code reviews, and continuous integration.
Understanding of concurrency, asynchrony, and parallelism.
Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks, and patterns for testability.
Proficiency in relational database concepts, Microsoft SQL Server, and SQL.
Familiarity with front-end technologies such as HTML, CSS, and JavaScript.
Experience in Web API design and implementation.
Desirable:
Commercial experience with Typescript.
Experience with containerization (e.g., Docker) and container orchestration (e.g., Kubernetes).
Experience in SPAs and responsive web development, particularly with Angular.
Familiarity with enterprise messaging systems (e.g., NServiceBus, Azure Service Bus)
Technical Architect
CBSbutler Holdings Limited trading as CBSbutler
London
In office
Mid
£650/day - £700/day
linux
prometheus
windows
terraform
ubuntu
window-server
+11
+DV cleared contract
+On site in London
+6 months +
+Outside IT35
650 - 700 a day
Skills:
+DV clearance
+CCNP
+Vmware
+HLD / LLD
We are seeking a highly experienced Technical Architect to join a secure, high-profile programme. The role requires someone with deep expertise across data centre networking, private cloud, security, and automation - with the ability to lead architecture, design, and governance at the highest level.
Key Responsibilities
Architecture & Design - Develop HLDs, LLDs, and build guides for end-to-end infrastructure solutions. Ensure alignment with security frameworks (Secure By Design, NCSC CAF, NIST 800-53).
Networking & Security - Architect secure, multi-tenant data centre networks (Clos-fabric, advanced BGP, DCI). Implement strong security using Palo Alto firewalls, VMware NSX-T micro-segmentation, and cross-domain solutions.
Compute & Virtualisation - Design/manage VMware VCF private cloud platforms, VxRail/vSAN hyper-converged compute, and software-defined networking.
Platform & Application Services - Deliver containerisation, secrets management, and enterprise messaging systems (Docker, RabbitMQ).
Governance & Leadership - Present to the Technical Design Authority, act as SME for infrastructure stack, and enforce CIS/STIG compliance.
Automation - Drive Infrastructure as Code (IaC) adoption and automated infrastructure deployment.
Core Technical Expertise
Data Centre Networking - Clos-fabric, VRFs, EBGP, ECMP, active/active DCI.
Network Security - Palo Alto firewalls, high-grade crypto.
Private Cloud & HCI - VMware VCF, VxRail/vSAN, Veeam.
Software-Defined Networking (SDN) - VMware NSX-T (Geneve overlays, Edge Node config, DFW, NSX Federation).
Security Architecture - Multi-tier secure environments (DMZs, CDS, Diodes/HAGs, AV - Trellix preferred).
Operating Systems - Senior Linux (Ubuntu) & Windows (Server 2025, SQL 2022, AD, PKI, MECM).
Application Platforms - Docker, CI/CD pipelines, secrets management, object storage (S3).
EUC - Omnissa Horizon, UAGs, Zero/Thin client environments.
Desirable Skills
EVPN/VXLAN, Fortigate, Panorama, VMware SSP (vDefend).
IaC (Terraform, Ansible), CI/CD (GitLab), Python orchestration.
Observability (Prometheus, Grafana), SIEM (Splunk, Aria Logs).
Advanced VMware: SRM, Avi Load Balancer, Workspace ONE.
Application/data platforms: Kubernetes, Vault, Redis, RabbitMQ, Elastic Stack.
Dell Powerscale & NVIDIA GPU passthrough experience.
Professional Skills & Qualifications
Proven ability to lead design workshops & governance board presentations.
Strong documentation skills (HLDs, LLDs, Build Guides).
Knowledge of CIS, STIG, and NIST 800-53 frameworks.
Certifications such as CISSP, CCNP (or equivalent experience) desirable.
If you’d like to discuss this Technical Architect role in more detail, please send your updated CV to (url removed) and I will get in touch.
Technical Architect - Retrofit Focus
Eden Brown
London
Hybrid
Mid
£45k - £55k
retrofit
Permanent position based in London
40-55k and strong benefits
An exceptional opportunity has arisen for a Technical Architect with Retrofit experience to join a dynamic and growing Development Consultancy team based in London to bridge the gap between design, planning, finance, and delivery.
If you’re an ARB-registered professional with strong technical design skills and a passion for sustainable refurbishment, this could be your next big move.
The Role
You’ll play a key role in delivering high-quality technical solutions on retrofit and regeneration schemes. Working across RIBA stages 3-4, your responsibilities will include:
Developing robust construction details for existing buildings and external envelope/cladding packages.
Supporting the design and delivery of retrofit projects from concept through to technical delivery.
Collaborating closely with multidisciplinary teams to ensure high standards of build ability and compliance.
Leading and mentoring junior team members where appropriate.
They are looking for someone with:
Strong retrofit and refurbishment experience, ideally within housing or mixed-use sectors.
Excellent technical detailing skills and knowledge of UK building regulations.
Proficiency in Revit is essential experience with PHPP is highly desirable.
A collaborative, solutions-focused mindset with the ability to work independently and as part of a team.
ARB registration and a track record of working in technically led roles.
You’ll be joining a forward-thinking, award-winning consultancy that puts people first - both clients and employees. Expect to work on meaningful projects that have a direct, lasting impact on communities and the built environment.
In return there is a:
Competitive salary
Flexible hybrid working
23 days holiday + bank holidays
Career progression and fully funded learning opportunities
Good health and wellbeing benefits including mental health support and Health membership
Company pension with enhanced employer contribution
Cycle to Work and Season Ticket Loan schemes
Paid volunteer days and long-term career pathways
If you’re ready to make a real impact in a progressive, people-focused environment, get in touch today to find out more or to apply with your CV and portfolio to (url removed)
Eden Brown is committed to equality in the workplace and is an equal opportunity employer.

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.