a strategic data centre hosting contract approaching in Summer 2027, our client is accelerating plans to modernise their estate - migrating a large, mixed portfolio of applications to cloud or SaaS platforms. This is a critical programme of work focusing on mainframe, open systems (AIX, Solaris, Linux, Windows), and SQL Server-based applications. You'll work closely with SMEs across multiple … including AWS and Azure. Key Responsibilities Lead architectural assessment and strategy for migrating legacy and mainframe applications to cloud platforms. Evaluate applications for multiple migration paths: decommissioning, replatforming, rewriting, SaaS replacement, or mainframe lift-and-shift. Analyse technical stacks and integrations (CICS COBOL, IMS, VSAM, QSAM, relational databases, flat file systems). Collaborate with application and infrastructure SMEs to define … estimation, sizing, and performance projections. Ensure alignment with cloud best practices and enterprise standards. Ideal Candidate Profile Proven experience as an Infrastructure Architect delivering on-prem to cloud and SaaS migrations in complex enterprise environments. Deep understanding of mainframe architectures, particularly CICS, COBOL, IMS, batch/online hybrid systems. Hands-on experience assessing legacy workloads and determining appropriate cloud-native More ❯
Bromley, Kent, England, United Kingdom Hybrid / WFH Options
Pontoon
based applications using the Spring Boot framework* Build and maintain containerised solutions on OpenShift* Design and implement scalable microservices and APIs* Collaborate with internal teams and external vendors, including SaaS providers* Contribute to the design and implementation of security architecture, including integration with HSMs* Capture and analyse business requirements, translate them into technical specifications* Support application testing, release and maintenance … Boot and microservices architecture* Hands-on experience with OpenShift or similar container orchestration platforms* Previous experience working in banking/financial services, with a focus on payments* Understanding of SaaS solutions and integration with external vendors* Familiarity with security architecture and cryptographic components, including HSMs* Experience working with at least one major cloud provider (Azure, AWS or GCP)* Strong grasp More ❯
performance tuning. Skilled in API development, microservices architecture, and messaging queue implementation. Strong understanding of supply chain systems and barcode-driven processes. Proven background in building secure, multi-tenant SaaS platforms. Interested?! Send your up-to-date CV to Dean Sadler-Parkes at Crimson for review Not interested?! Do you know anyone that might be? Refer a friend for this More ❯
Bolton, Greater Manchester, North West, United Kingdom
Crimson
performance tuning. Skilled in API development, microservices architecture, and messaging queue implementation. Strong understanding of supply chain systems and barcode-driven processes. Proven background in building secure, multi-tenant SaaS platforms. Interested?! Send your up-to-date CV to Dean Sadler-Parkes at Crimson for review Not interested?! Do you know anyone that might be? Refer a friend for this More ❯
Inside IR35) A growing digital technology provider supporting enterprise infrastructure and critical national services is seeking an experienced Front-End Developer to help evolve a cutting-edge geospatial SaaS platform. You'll join a team building scalable features across web and mobile interfaces using Blazor, .NET 8+, DAPR, and microservices in Azure and AWS-all within a modern, cloud-native More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Opus Recruitment Solutions Ltd
modelling, risk assessments, and security architecture reviews Collaborate with engineering, DevOps, and compliance teams to embed security best practices Define and enforce security standards across Azure IaaS, PaaS, and SaaS environments Essential Skills & Experience: Strong background in Azure security architecture Hands-on experience with Microsoft Sentinel or other enterprise SIEM platforms Deep understanding of Azure security services (e.g. Defender for More ❯
Birkenhead, Merseyside, England, United Kingdom Hybrid / WFH Options
Maxwell Bond
Backend Software Developer 6 months | Hybrid | Greenfield | £400 outside IR35 Join a dynamic software house on an exciting greenfield SaaS project asa Backend Software Developer . You’ll be part of a collaborative team building modern, scalable microservices from scratch using the latest Microsoft stack. The environment is fast-paced, commercially driven, and offers the opportunity to step into More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
years of experience in technical writing, ideally in asoftware development environment. Strong experience using Confluence for collaboration and documentation. Solid understanding of cloud computing concepts (IaaS, PaaS, SaaS). Familiarity with .NET desktop application development and modern cloud technologies (e.g., Azure, AWS, or GCP). Comfortable working in an Agile/SCRUM environment. Excellent written and verbal communication skills More ❯
Robert Half Technology are assisting a rapidly growing SaaS organisation to recruit a CTO on a contract basis - London based - start ASAP As CTO, you will be a key member of the executive leadership team, responsible for driving the overall technology strategy and ensuring that our product and platform continue to scale securely, reliably, and innovative. You'll play a … teams, including reporting to the board and investors. Profile The CTO will have proven experience asa senior technology leader (CTO, VP Engineering, or similar) within a high-growth SaaS environment. Strong software engineering background with hands-on knowledge of modern web technologies, cloud infrastructure (AWS, Azure, or GCP), and best practices in DevOps and CI/CD. Deep understanding … Commercial acumen and the ability to align technical decisions with business impact. Excellent communication skills with the ability to influence both technical and non-technical stakeholders. Company Rapidly growing SaaS organisation with offices in London On site required Outside IR35 Salary & Benefits The salary range/rates of pay is dependent upon your experience, qualifications or training . Robert Half More ❯
Experience - Insurance or FinTech or Banking £800 - £1400 p/d - Umbrella engagement - 6 - 12 month contract London or Hampshire based 2/3 days per week Champion modular SaaS adoption, API-first design, and cloud-native principles. Overview: To lead the design and delivery of our clients go-to digital and data platform for a key business area, using … modular SaaS architecture - and the development of the in-house solution design and engineering capability required to scale and migrate customers and colleagues to the new platform and ways of working. This role will bridge business goals and technical execution ensuring architectural integrity, engineering excellence, and alignment with strategy and enterprise-wide transformation objectives. Core elements of the role: Define … and own the solution architecture and platform tech and data design, aligned with business transformation goals and enterprise architecture principles. Architect a composable platform using best-of-breed SaaS solutions, microservices, and event-driven architecture. Champion modular SaaS adoption, API-first design, and cloud-native principles.Oversee integration strategies (e.g., iPaaS, APIs, messaging) to ensure seamless data and process flows Collaborate More ❯
is embedded throughout the technology stack Support security design activities within major transformation programmes and new product initiatives Engage in security reviews of third-party vendors, cloud providers, and SaaS platforms to validate compliance with the client’s security standards Assist in threat modelling, risk assessments, and documenting security controls across infrastructure and application layers Participate in incident response efforts More ❯
A Council in London are seeking a Platform Specialist to ensure the day to day running of the Council production servers, operating system, cloud environments, Office 365 collaboration applications, SAAS applications, Council's network, backups and internet security infrastructure while ensuring high levels of systems availability. Requirements The post holder will act asa subject matter expert in their expertise More ❯
Leeds, West Yorkshire, England, United Kingdom Hybrid / WFH Options
Interquest
testing workstream of a critical enterprise integration programme. This is a hands-on role requiring a strategic thinker who can drive quality across complex integrations between cloud-based systems, SaaS platforms, and on-premise applications. You will define and own the test strategy across system, integration, and UAT phases—ensuring robust data flows, exception handling, and end-to-end functionality. More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Nigel Frank International
CE Product Owner - Looking for a seasoned Senior/Lead Dynamics 365 Product Owner to play a pivotal role in a large-scale transition to a cloud-first, SaaS-based technology environment built on Azure. This position will focus on utilising Dynamics 365 asa foundation system to streamline critical business operations. Role & Responsibilities Lead and own the Dynamics More ❯
technology) Experience Required: Expert-level knowledge and experience with technical deployments of exposure/vulnerability management systems for large enterprises, across a diverse technology stack (IaaS/PaaS/SaaS/physical/mainframe/hybrid-cloud) and delivery lifecycles (Project/COTS applications, DevOps) Expertise with Qualys and other vulnerability and exposure management technologies Expertise in the full vulnerability More ❯
technology) Experience Required: Expert-level knowledge and experience with technical deployments of exposure/vulnerability management systems for large enterprises, across a diverse technology stack (IaaS/PaaS/SaaS/physical/mainframe/hybrid-cloud) and delivery lifecycles (Project/COTS applications, DevOps) Expertise with Qualys and other vulnerability and exposure management technologies Expertise in the full vulnerability More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
Technical Solution Designer - Integrations - (SaaS, API) - Remote (some travel) Day rate: £500 - £600 (inside IR35) Duration: 3 - 6 months Start: ASAP Offices: London, Bristol, Manchester My client is looking for a highly skilled Systems Solution Designer to join our dynamic team. This role is crucial in defining and mapping how various platforms link together to drive a seamless experience and … Bachelor's degree in Computer Science, Information Technology, or a related field. Proven experience asa Solution Designer or similar role. Strong technical acumen with a solid understanding of SaaS, APIs, cloud computing (AWS, Azure), and financial/accounting technologies. Experience with APIs, web services, middleware, and API tools and technologies such as GitHub, REST API, microservices, Postman, OpenAPI, etc. More ❯
Derby, Derbyshire, United Kingdom Hybrid / WFH Options
Adecco
on a solution where you will be developing new web apps and AI-based analysis tools. The solution will need to be built with a combination of Microsoft Azure SaaS services (Function Apps, Azure SQL, Storage Accounts, Azure OpenAI, AI Search) custom code written in Python for server-side code, and custom HTML/CSS/JS + React for More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Searchability
Secrets Management Focus * This is a strategic and hands-on cloud security architecture role with a focus on secrets management and non-human identity protection across multi-cloud and SaaS environments.* This is a 3-6 month contract paying up to £600/650 p/d, based remotely with potential on-site collaboration as required.* Immediate start preferred, so More ❯
to complex technical problems Leading investigation and resolving complex issues and escalations while demonstrating exceptional technical understanding, business process and customer needs in timely manner. Desirable Skills Experience providing SaaS support Experience developing applications within the ServiceNow Platform Experience diagnosing performance related issues. Experience using tools like Eclipse, Splunk, Xcode, Android studio, SauceLab Due to the volume of applications received More ❯
Release and Environment Manager SaaS/Salesforce/JIRA/IT Transformation Programme £550 - £650/day | Outside IR35 6 Months (Rolling) Milton Keynes - Initially Hybrid We're partnering with a well-known insurance organisation to appoint a Contract Release and Environment Manager for a major IT transformation programme. This initiative marks the modernisation of over 20 years of legacy … Has previously built environments for large-scale IT transformation programmes Brings hands-on experience with automation and process optimisation Is highly proficient in JIRA Has strong experience working within SaaS-based environments Competent in the above technologies If this sounds like the right fit for you, please apply directly we'll be in touch with more details. More ❯
Release and Environment Manager SaaS/Salesforce/JIRA/IT Transformation Programme 550 - 650/day Outside IR35 6 Months (Rolling) Milton Keynes - Initially Hybrid We're partnering with a well-known insurance organisation to appoint a Contract Release and Environment Manager for a major IT transformation programme. This initiative marks the modernisation of over 20 years of legacy … Has previously built environments for large-scale IT transformation programmes Brings hands-on experience with automation and process optimisation Is highly proficient in JIRA Has strong experience working within SaaS-based environments Competent in the above technologies If this sounds like the right fit for you, please apply directly we'll be in touch with more details. More ❯
area of CIS security. Conceptual understanding of cloud computing concepts, architectures, and technologies, including Infrastructure asaService (IaaS), Platform asaService (PaaS), and SoftwareasaService (SaaS). Working knowledge of the Archimate language and its use to produce architecture views. Experience of working with a diverse, multi-disciplinary and multi-national team. Proven ability to communicate More ❯
SQL Applications Support Analyst SQL Applications Support Analyst - SQL/T-SQL, Salesforce, SaaS, Workday, Azure, Splunk, Automation, CRM, ERP, ITIL, Agile, Jira, Confluence, Elastic Stack - Hybrid (Warrington) - One-Year Fixed Term Contract - to £45k + good bens My client has an urgent need for an experienced Applications Support Analyst to join a specialist team supporting a range of new … record in an Applications support role focussed on IT applications software rather than IT infrastructure - Solid experience of using SQL/T-SQL and knowledge of any of: Salesforce, SaaS, Workday, Elastic Stack or Splunk would be ideal - Expertise in issue tracking collaboration tools (Jira, Confluence, Bugzilla), the change management process and the software development lifecycle - Experience in the pro … together so the ability to interact with other technical staff, as well asa large user base, will be required. SQL Applications Support Analyst - SQL/T-SQL, Salesforce, SaaS, Workday, Azure, Splunk, Automation, CRM, ERP, ITIL, Agile, Jira, Confluence, Elastic Stack - Hybrid (Warrington) - One-Year Fixed Term Contract - to £45k + good bens Essential Recruitment is a specialist IT More ❯
to interpret business needs and translate them into IFS configurations or functional specs Excellent stakeholder communication skills, with experience working in hybrid teams Desirable: Experience supporting IFS implementations in SaaS or technology-driven businesses Previous involvement in multi-site or global deployments Background in supporting integration with other business systems (e.g. CRM platforms, BI tools) Industry experience in telecoms, services More ❯