151 to 175 of 686 Senior Jobs in Hertfordshire

Our client, a long term partner of ours and a leader in their field, are looking for a Hardware Design Engineer to join their busy team. The successful candidate will get the chance to work for a fantastic employer, working More ❯

Our client, a long term partner of ours and a leader in their field, are looking for a Hardware Design Engineer to join their busy team. The successful candidate will get the chance to work for a fantastic employer, working More ❯

Our client, a long term partner of ours and a leader in their field, are looking for a Hardware Design Engineer to join their busy team. The successful candidate will get the chance to work for a fantastic employer, working More ❯

Senior Platform Engineer (SC) Contract type: Permanent Hours : Full time Location: Remote with ad-hoc attendance to on-site client meetings Salary: £65k- £85k DOE The successful candidate must hold British Citizenship due to our associations with the Defence industry. About Ntegra is a specialist technology practice on a mission … and coding languages including Bash and PowerShell, as well as the management of cloud-based platforms, such as Azure, AWS and Google Cloud. The Senior Platform Engineer work with infrastructure as code, containerisation, and modern CI/CD practices. They will also work with other members of the team to … computer science, Information Technology, or a related field, or equivalent experience. Consultancy or client-facing experience desirable, or the ability to confidently communicate with senior stakeholders. Much of our client work is in Defence so the candidate must be able to apply, or already hold, SC Clearance. At Ntegra, we More ❯

Senior Platform Engineer (SC) Contract type: Permanent Hours : Full time Location: Remote with ad-hoc attendance to on-site client meetings Salary: £65k- £85k DOE The successful candidate must hold British Citizenship due to our associations with the Defence industry. About Ntegra is a specialist technology practice on a mission … and coding languages including Bash and PowerShell, as well as the management of cloud-based platforms, such as Azure, AWS and Google Cloud. The Senior Platform Engineer work with infrastructure as code, containerisation, and modern CI/CD practices. They will also work with other members of the team to … computer science, Information Technology, or a related field, or equivalent experience. Consultancy or client-facing experience desirable, or the ability to confidently communicate with senior stakeholders. Much of our client work is in Defence so the candidate must be able to apply, or already hold, SC Clearance. At Ntegra, we More ❯

Senior Platform Engineer (SC) Contract type: Permanent Hours : Full time Location: Remote with ad-hoc attendance to on-site client meetings Salary: £65k- £85k DOE The successful candidate must hold British Citizenship due to our associations with the Defence industry. About Ntegra is a specialist technology practice on a mission … and coding languages including Bash and PowerShell, as well as the management of cloud-based platforms, such as Azure, AWS and Google Cloud. The Senior Platform Engineer work with infrastructure as code, containerisation, and modern CI/CD practices. They will also work with other members of the team to … computer science, Information Technology, or a related field, or equivalent experience. Consultancy or client-facing experience desirable, or the ability to confidently communicate with senior stakeholders. Much of our client work is in Defence so the candidate must be able to apply, or already hold, SC Clearance. At Ntegra, we More ❯

My client, a reputable cyber security vendor with a global presence and excellent product recognition, is seeking a Senior Backend PHP Developer to join their team. This is a permanent role and this client is open to a fully remote candidate based in the UK or someone based in London … who is open to hybrid work. Your Responsibilities : As Senior Backend PHP Developer, you will be working closely with the Development Team and Infrastructure Team to work on their tech stack and projects. What you'll be doing: • Design, develop, and maintain scalable, secure, and high-performance backend applications using … backend development, cloud computing, and DevOps to enhance system design and team capabilities. What You Should Bring? We're looking for a hands-on Senior Backend Developer with DevOps experience, possessing the following: • Proven expertise (5+ years) in backend development with proficiency in PHP and experience in Python or Java More ❯

My client, a reputable cyber security vendor with a global presence and excellent product recognition, is seeking a Senior Backend PHP Developer to join their team. This is a permanent role and this client is open to a fully remote candidate based in the UK or someone based in London … who is open to hybrid work. Your Responsibilities : As Senior Backend PHP Developer, you will be working closely with the Development Team and Infrastructure Team to work on their tech stack and projects. What you'll be doing: • Design, develop, and maintain scalable, secure, and high-performance backend applications using … backend development, cloud computing, and DevOps to enhance system design and team capabilities. What You Should Bring? We're looking for a hands-on Senior Backend Developer with DevOps experience, possessing the following: • Proven expertise (5+ years) in backend development with proficiency in PHP and experience in Python or Java More ❯

My client, a reputable cyber security vendor with a global presence and excellent product recognition, is seeking a Senior Backend PHP Developer to join their team. This is a permanent role and this client is open to a fully remote candidate based in the UK or someone based in London … who is open to hybrid work. Your Responsibilities : As Senior Backend PHP Developer, you will be working closely with the Development Team and Infrastructure Team to work on their tech stack and projects. What you'll be doing: • Design, develop, and maintain scalable, secure, and high-performance backend applications using … backend development, cloud computing, and DevOps to enhance system design and team capabilities. What You Should Bring? We're looking for a hands-on Senior Backend Developer with DevOps experience, possessing the following: • Proven expertise (5+ years) in backend development with proficiency in PHP and experience in Python or Java More ❯

Senior Salesforce Developer Senior Salesforce Developer required by a leading professional body/non-profit in London. The role: This organisation has a dynamic technology environment and as the Senior Salesforce Developer you will play a key role in the ongoing development of the Salesforce platform. You will be seen More ❯

Senior Salesforce Developer Senior Salesforce Developer required by a leading professional body/non-profit in London. The role: This organisation has a dynamic technology environment and as the Senior Salesforce Developer you will play a key role in the ongoing development of the Salesforce platform. You will be seen More ❯

Senior Salesforce Developer Senior Salesforce Developer required by a leading professional body/non-profit in London. The role: This organisation has a dynamic technology environment and as the Senior Salesforce Developer you will play a key role in the ongoing development of the Salesforce platform. You will be seen More ❯

Senior Software Engineer - (UK Remote) Our client, an innovative SaaS company, is looking for a Senior Software Engineer to join their remote team. This is an exciting opportunity to help shape a fully serverless platform built on AWS and Azure, using cutting-edge technologies such as React, TypeScript, and Node.js. More ❯

Senior Software Engineer - (UK Remote) Our client, an innovative SaaS company, is looking for a Senior Software Engineer to join their remote team. This is an exciting opportunity to help shape a fully serverless platform built on AWS and Azure, using cutting-edge technologies such as React, TypeScript, and Node.js. More ❯

Senior Software Engineer - (UK Remote) Our client, an innovative SaaS company, is looking for a Senior Software Engineer to join their remote team. This is an exciting opportunity to help shape a fully serverless platform built on AWS and Azure, using cutting-edge technologies such as React, TypeScript, and Node.js. More ❯

Senior Looker BI Developer (Fixed-Term Contract) - Marketing Analytics Location: Flexible within the UK Contract Duration: 12 Months Fixed-Term Anticipated End Date: December 2025 Salary: £60,000 - £80,000 per annum The Opportunity We're recruiting on behalf of a prominent global technology company , a leader in providing advanced More ❯

Senior Looker BI Developer (Fixed-Term Contract) - Marketing Analytics Location: Flexible within the UK Contract Duration: 12 Months Fixed-Term Anticipated End Date: December 2025 Salary: £60,000 - £80,000 per annum The Opportunity We're recruiting on behalf of a prominent global technology company , a leader in providing advanced More ❯

Senior Looker BI Developer (Fixed-Term Contract) - Marketing Analytics Location: Flexible within the UK Contract Duration: 12 Months Fixed-Term Anticipated End Date: December 2025 Salary: £60,000 - £80,000 per annum The Opportunity We're recruiting on behalf of a prominent global technology company , a leader in providing advanced More ❯

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems with cutting-edge … us on our journey to become the global leader in aerospace and defence content management. Role Overview We're looking for a proactive, experienced Senior Full Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and … Blazor, Minimal APIs Entity Framework, Redis, RabbitMQ Aspire (.NET), Cloud-Native development Key Responsibilities Project Leadership – Lead projects from concept to deployment, collaborating with senior developers and the technical director to design and implement architectural and technical solutions. Full Stack Development – Maintain and enhance both legacy desktop applications and modern More ❯

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems with cutting-edge … us on our journey to become the global leader in aerospace and defence content management. Role Overview We're looking for a proactive, experienced Senior Full Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and … Blazor, Minimal APIs Entity Framework, Redis, RabbitMQ Aspire (.NET), Cloud-Native development Key Responsibilities Project Leadership – Lead projects from concept to deployment, collaborating with senior developers and the technical director to design and implement architectural and technical solutions. Full Stack Development – Maintain and enhance both legacy desktop applications and modern More ❯

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems with cutting-edge … us on our journey to become the global leader in aerospace and defence content management. Role Overview We're looking for a proactive, experienced Senior Full Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and … Blazor, Minimal APIs Entity Framework, Redis, RabbitMQ Aspire (.NET), Cloud-Native development Key Responsibilities Project Leadership – Lead projects from concept to deployment, collaborating with senior developers and the technical director to design and implement architectural and technical solutions. Full Stack Development – Maintain and enhance both legacy desktop applications and modern More ❯

Senior Software Developer UK Remote £80,000 - £95,000 + Progression + Training + Pension An excellent opportunity awaits an experienced software developer with strong .NET and React skills to join a leading software company in a role offering strong technical variety, ongoing development opportunities, and involvement in genuinely interesting … management systems that support critical decision-making in sectors such as environmental monitoring, infrastructure, and energy. In this role you'll join as a senior member of the development team, taking a hands-on role in the full lifecycle of a specialist management platform. You'll help shape the product … environmental, or infrastructure-related domains is a bonus. This is an excellent opportunity to join a collaborative and tech-focused software team in a senior position offering a mix of engineering depth, meaningful projects, and long-term growth. The Role: *Full-stack development using .NET and React *Azure DevOps, containerisation More ❯

Senior Backend Engineer – Python/Microservices Location: Fully Remote Salary: £90,000 – £120,000 + Equity Options Type: Full-time, Permanent Join a Fintech Revolution - Newly created role - As the first in this role, you’ll play a key role in defining how backend engineering evolves within a fast-scaling More ❯

Senior Backend Engineer – Python/Microservices Location: Fully Remote Salary: £90,000 – £120,000 + Equity Options Type: Full-time, Permanent Join a Fintech Revolution - Newly created role - As the first in this role, you’ll play a key role in defining how backend engineering evolves within a fast-scaling More ❯

Senior Backend Engineer – Python/Microservices Location: Fully Remote Salary: £90,000 – £120,000 + Equity Options Type: Full-time, Permanent Join a Fintech Revolution - Newly created role - As the first in this role, you’ll play a key role in defining how backend engineering evolves within a fast-scaling More ❯