2,478 Application Development jobs in the United Kingdom
Senior Application Development Cyber Security Engineer

Posted 3 days ago
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Job Description
We are seeking a seasoned Cyber Security Engineer to lead the development and integration of secure architectures for critical Transmission & Distribution (T&D) systems.
As a recognized technical authority, you will define cybersecurity strategy across hardware, embedded systems, and software-defined platforms in modern electric grids-spanning protection, control, and energy management technologies for Grid Automation business unit.
You will embed Security by Design and Cyber-Informed Engineering (CIE) principles throughout the product lifecycle, operating at the intersection of operational technology (OT) and information technology (IT). Your work will help drive regulatory compliance, product security, and support both R&D teams and utility customers in securing mission-critical infrastructure.
**Job Description**
**Key Responsibilities:**
+ Act as the cybersecurity design authority for T&D products, defining end-to-end architectures across hardware, firmware, and cloud-connected systems, advising on secure protocols, cryptography, authentication, and network hardening.
+ Translate and implement global regulatory standards (IEC 62443, IEC 61850, IEC 62351, NERC CIP) into product requirements, and lead technical strategy planning, architecture reviews, and security certification efforts.
+ Guide engineering teams through threat modeling, secure coding, SDLC best practices, and CIE adoption to mitigate cyber-physical risks affecting safety, reliability, or operations.
+ Define and support embedded and software-based security features using C/C++, Python, and modern toolchains, while collaborating on penetration testing, fuzz testing, code reviews, and security simulations.
+ Lead cross-functional initiatives with PSL, product management, compliance, field operations, and R&D to align cybersecurity objectives and ensure systems meet resilience and compliance expectations.
+ Monitor cybersecurity trends, ICS/OT threat landscapes, and emerging technologies, recommending tools and methods to enhance product security posture.
+ Partner with PSL, incident response and product security teams to support vulnerability remediation, post-incident analysis, and contribute to the creation of security documentation, including architecture specs, procedures, and training materials.
+ Represent the company in industry forums, standards bodies, and technical panels, and contribute to white papers, patents, and technical publications supporting innovation and thought leadership for Grid Automation.
**Required Qualifications:**
+ Bachelor's degree in engineering, Computer Science, Cybersecurity, or a related field.
+ Minimum of 8 years of engineering experience, with 5 years focused on cybersecurity for embedded or software-defined systems.
**Desired Characteristics:**
+ Professional certifications such as CISSP, GIAC (GPEN/GXPN), CEH, or ISA/IEC 62443 preferred.
+ Proven ability to secure OT/ICS environments, preferably within the energy or utilities sector.
+ Deep familiarity with industrial protocols (e.g., IEC 61850, DNP3, Modbus, IEEE 2030.5) and relevant cybersecurity standards.
+ Experience in embedded system development (C/C++, RTOS), as well as Linux/Windows platforms.
+ Strong hands-on background in PKI, identity management, network security appliances, and security monitoring.
+ Proficient in threat modeling, risk/vulnerability assessment, and using forensic/security analysis tools.
+ Excellent communication and stakeholder engagement skills, able to translate technical content for non-technical audiences.
+ Exposure to quality improvement methodologies (e.g., Lean, Six Sigma) is a plus.
+ Recognized as a thought leader through publications, patents, or industry involvement.
+ Willingness to travel for customer engagements, conferences, and global collaboration.
**For US Based Candidates -
The base pay range for this position is 152,400.00 - 190,000.00 USD Annual. The specific pay offered may be influenced by a variety of factors, including the candidate's experience, education, and skill set. This position is also eligible for a 15% variable incentive bonus annually. This posting is expected to close on _9/29/25._
*The Company pays a geographic differential of 110%, 120% or 130% of salary in certain areas.
Healthcare benefits include medical, dental, vision, and prescription drug coverage; access to a Health Coach, a 24/7 nurse-based resource; and access to the Employee Assistance Program, providing 24/7 confidential assessment, counseling and referral services. Retirement benefits include the GE Retirement Savings Plan, a tax-advantaged 401(k) savings opportunity with company matching contributions and company retirement contributions, as well as access to Fidelity resources and planning consultants. Other benefits include tuition assistance, adoption assistance, paid parental leave, disability insurance, life insurance, and paid time-off for vacation or illness.
General Electric Company, Ropcor, Inc., their successors, and in some cases their affiliates, each sponsor certain employee benefit plans or programs (i.e., is a "Sponsor"). Each Sponsor reserves the right to terminate, amend, suspend, replace, or modify its benefit plans and programs at any time and for any reason, in its sole discretion. No individual has a vested right to any benefit under a Sponsor's welfare benefit plan or program. This document does not create a contract of employment with any individual.
**Additional Information**
**Relocation Assistance Provided:** No
#LI-Remote - This is a remote position
GE Vernova is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.
KDB Application Development Technical Lead - VP (Belfast)
Posted 5 days ago
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Job Description
**Job Description**
The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.
**Responsibilities:**
+ Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
+ Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
+ Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
+ Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
+ Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
+ Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
+ Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
+ Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.
**Qualifications:**
+ Extensive years of developing kdb server side code
+ Experience with designing large scale server side implementations for tick/ETL captures
+ Experience with establishing best practices around coding, code reviews and architecture
+ Writing code for any established kdb+ framework (TorQ or a substitute in-house implementation)
+ Demonstrate understanding of kdb+ table formats on disk (flat/splayed/parted/attributes.)
+ adverb knowledge (each/over etc.)
+ interprocess communication (hopen, sync/async differences.)
+ Large File loading (0:, read0, read1,named pipe, .Q.fs, .Q.fps.)
+ Ability to adjust priorities quickly as circumstances dictate
+ Demonstrated leadership and project management skills
+ Consistently demonstrates clear and concise written and verbal communication
+ Education:
+ Bachelor's degree/University degree or equivalent experience
+ Master's degree preferred
This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.
**What we'll provide you**
By joining Citi Belfast, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:
+ 27 days annual leave (plus
Web Development Team Lead
Posted 1 day ago
Job Viewed
Job Description
Location: London (Hybrid)
Salary: £50,000 - £55,000
Be the driving force behind the next generation of our property tech platform.
We’re looking for a hands-on technical leader who can balance writing code with leading a talented dev team . This isn’t about throwing everything away and starting fresh - it’s about smart evolution : scaling our platform, modernising where it matters, and keeping business needs front and centre.
You’ll own architecture decisions , speed up feature delivery, and take the weight off the CTO’s shoulders - all while helping your team level up.
What You’ll Do
Architect & Innovate
- Review our existing PHP + Vue architecture and decide what stays, what goes, and what moves to Node/Next
- Gradually introduce modular or microservice structures only when they add real value
- Work with the CTO on strategy while confidently making your own calls
- Build and maintain in PHP/Vue for current services
- Develop new features in Node/Next
- Refactor, review, and maintain clean, consistent code
- Mentor mid-level and senior developers, run 1:1s, and map their growth paths
- Organise workflows, code reviews, and DevOps processes
- Balance urgent tasks with strategic priorities, keeping delivery smooth
- Turn user pain points into smart, technical solutions
- Partner with product managers to prioritise high-impact features
- Release MVPs quickly, gather feedback, and iterate
- Improve CI/CD pipelines and Docker usage
- Implement automated testing and service monitoring
- Make deployments fast, reliable, and drama-free
You’ll Succeed If You Have…
Must-Haves
- 3–5+ years as a team lead, tech lead, or principal engineer
- Hands-on Node.js & major frontend framework experience (React/Vue)
- Proven ability to work with existing PHP codebases (Laravel/legacy)
- CI/CD, basic Docker, automated testing know-how
- Track record of building and developing teams (5–10 people)
- Strong English communication skills (Upper-Intermediate+)
- Kubernetes, Terraform, or advanced DevOps skills
- Experience leading monolith → microservices transitions
- Past CTO/startup founder perspective
- Wider tech stack knowledge for creative problem solving
Why This Role Is a Game-Changer
- Player-Coach Role – Half coding, half leading
- Impact From Day One – Every decision you make shapes the platform’s future
- Startup Agility – Move fast, avoid unnecessary bureaucracy
- Career Growth – Scale your leadership scope as the product scales
Apply now for this Web Development Team Lead role and take charge of architecture, build a high-performing dev team, and lead a platform transformation that impacts thousands of users.
Please Note: Rayner Personnel – Property Recruitment are acting as a recruitment agency with regards to this position. By submitting your application, you are consenting to Rayner Personnel processing and storing your data for the purposes of your job search.
We receive a great many applications for our vacancies and try to respond to as many as we can as quickly as possible. If you have not heard from a member of the team within 48 working hours, please assume that on this occasion your application has not been successful, but please feel that you may apply for other roles we are advertising in the future.
Web Development Team Lead
Posted 1 day ago
Job Viewed
Job Description
Location: London (Hybrid)
Salary: £50,000 - £55,000
Be the driving force behind the next generation of our property tech platform.
We’re looking for a hands-on technical leader who can balance writing code with leading a talented dev team . This isn’t about throwing everything away and starting fresh - it’s about smart evolution : scaling our platform, modernising where it matters, and keeping business needs front and centre.
You’ll own architecture decisions , speed up feature delivery, and take the weight off the CTO’s shoulders - all while helping your team level up.
What You’ll Do
Architect & Innovate
- Review our existing PHP + Vue architecture and decide what stays, what goes, and what moves to Node/Next
- Gradually introduce modular or microservice structures only when they add real value
- Work with the CTO on strategy while confidently making your own calls
- Build and maintain in PHP/Vue for current services
- Develop new features in Node/Next
- Refactor, review, and maintain clean, consistent code
- Mentor mid-level and senior developers, run 1:1s, and map their growth paths
- Organise workflows, code reviews, and DevOps processes
- Balance urgent tasks with strategic priorities, keeping delivery smooth
- Turn user pain points into smart, technical solutions
- Partner with product managers to prioritise high-impact features
- Release MVPs quickly, gather feedback, and iterate
- Improve CI/CD pipelines and Docker usage
- Implement automated testing and service monitoring
- Make deployments fast, reliable, and drama-free
You’ll Succeed If You Have…
Must-Haves
- 3–5+ years as a team lead, tech lead, or principal engineer
- Hands-on Node.js & major frontend framework experience (React/Vue)
- Proven ability to work with existing PHP codebases (Laravel/legacy)
- CI/CD, basic Docker, automated testing know-how
- Track record of building and developing teams (5–10 people)
- Strong English communication skills (Upper-Intermediate+)
- Kubernetes, Terraform, or advanced DevOps skills
- Experience leading monolith → microservices transitions
- Past CTO/startup founder perspective
- Wider tech stack knowledge for creative problem solving
Why This Role Is a Game-Changer
- Player-Coach Role – Half coding, half leading
- Impact From Day One – Every decision you make shapes the platform’s future
- Startup Agility – Move fast, avoid unnecessary bureaucracy
- Career Growth – Scale your leadership scope as the product scales
Apply now for this Web Development Team Lead role and take charge of architecture, build a high-performing dev team, and lead a platform transformation that impacts thousands of users.
Please Note: Rayner Personnel – Property Recruitment are acting as a recruitment agency with regards to this position. By submitting your application, you are consenting to Rayner Personnel processing and storing your data for the purposes of your job search.
We receive a great many applications for our vacancies and try to respond to as many as we can as quickly as possible. If you have not heard from a member of the team within 48 working hours, please assume that on this occasion your application has not been successful, but please feel that you may apply for other roles we are advertising in the future.
Junior Web Development Apprentice
Posted today
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Job Description
Your responsibilities will include assisting senior developers in coding, testing, and debugging web applications. You will learn to create user-friendly interfaces using HTML, CSS, and JavaScript, and gain exposure to back-end languages and frameworks such as Python/Django or Node.js/Express. Familiarity with version control systems like Git and an understanding of database concepts (SQL/NoSQL) will be developed throughout the apprenticeship. You will participate in team meetings, learn about agile development methodologies, and contribute to project planning and execution. The ideal candidate is passionate about technology, possesses strong problem-solving abilities, and has a keen eye for detail. While prior professional experience is not required, a demonstrable interest in web development, such as personal projects or online courses, would be beneficial. This fully remote apprenticeship offers a structured learning path, leading to a recognized qualification and significant career progression opportunities within the tech industry. We are committed to providing a supportive and collaborative learning environment.
Junior Web Development Apprentice
Posted today
Job Viewed
Job Description
As a remote apprentice, your responsibilities will include:
- Assisting senior developers in coding, testing, and debugging web applications.
- Learning and applying various programming languages and frameworks such as HTML, CSS, JavaScript, Python, and React.
- Collaborating with team members through online communication tools (e.g., Slack, Microsoft Teams, Zoom).
- Participating in virtual code reviews and learning from experienced professionals.
- Contributing to the development of user interfaces and backend functionalities.
- Troubleshooting and resolving technical issues under guidance.
- Engaging in online learning modules and training sessions to enhance technical skills.
- Documenting code and project progress meticulously.
Junior Web Development Apprentice
Posted today
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Job Description
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Senior Web Development Lead
Posted today
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Job Description
Key Responsibilities:
- Lead the design, development, and implementation of complex web applications from concept to deployment.
- Mentor and guide a team of front-end and back-end developers, fostering a collaborative and productive work environment.
- Define and enforce coding standards, best practices, and architectural guidelines.
- Collaborate with product managers, designers, and stakeholders to translate requirements into technical solutions.
- Conduct code reviews, provide constructive feedback, and ensure the maintainability and performance of the codebase.
- Identify and resolve technical roadblocks, ensuring timely project delivery.
- Stay abreast of emerging web technologies, frameworks, and industry trends, recommending adoption where appropriate.
- Manage project timelines, resources, and deliverables in an agile development environment.
- Contribute to strategic technology planning and architecture decisions.
- Troubleshoot and debug complex issues across various environments.
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
- Minimum of 7 years of experience in professional web development, with a strong portfolio showcasing complex projects.
- Proven experience (3+ years) in a technical leadership or team lead role.
- Expertise in modern front-end technologies (e.g., React, Angular, Vue.js) and back-end frameworks (e.g., Node.js, Python/Django, Ruby on Rails, Java/Spring).
- Proficiency in database technologies (SQL and NoSQL) and cloud platforms (AWS, Azure, GCP).
- Strong understanding of software architecture patterns, design principles, and API development.
- Excellent problem-solving, analytical, and critical-thinking skills.
- Exceptional leadership, communication, and interpersonal skills.
- Experience with agile methodologies (Scrum, Kanban).
- Ability to work effectively in a fully remote setting and manage distributed teams.
Junior Web Development Apprentice
Posted today
Job Viewed
Job Description
Your responsibilities will include assisting in the design and implementation of user-friendly interfaces, writing clean and efficient code, and collaborating with the development team through online communication tools. You will learn to use various programming languages and frameworks, such as HTML, CSS, JavaScript, and potentially Python or PHP, depending on project needs. The role also involves debugging code, conducting quality assurance testing, and contributing to the development of new features. We are looking for individuals with a passion for technology, a strong desire to learn, and excellent problem-solving abilities. While prior coding experience is beneficial, it is not strictly required, as comprehensive training will be provided. You should be self-disciplined, highly organized, and possess strong communication skills to effectively collaborate with a remote team. Access to a reliable internet connection and a suitable home working environment are essential. This apprenticeship offers a structured learning path, leading to recognized qualifications and the potential for a permanent role within the company upon successful completion. Join us and build a rewarding career in web development from the ground up, working from the comfort of your own home.
Junior Level Apprentice - Web Development
Posted today
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Job Description
Responsibilities will include assisting senior developers in coding, debugging, and testing new features; collaborating with team members via virtual meetings and chat platforms; participating in code reviews to understand best practices; contributing to project documentation; and actively engaging in problem-solving to overcome development challenges. We foster a culture of continuous learning, providing access to online courses, workshops, and industry-leading resources. As an apprentice, you'll gain hands-on experience with agile methodologies, version control systems like Git, and cloud platforms. You’ll learn to translate design mockups into functional, responsive web pages and develop interactive user interfaces. The ideal candidate possesses a strong passion for technology, excellent problem-solving abilities, a keen eye for detail, and a proactive attitude towards learning new skills. While prior coding experience is a plus, it is not strictly required; we are more interested in your potential and enthusiasm.
This role is based in Southampton, Hampshire, UK , but operates on a fully remote basis, allowing you to work from anywhere within the UK. Join us and build a rewarding career in the exciting field of web development. We provide a supportive and inclusive virtual workspace where your contributions are valued and your development is our priority. This is an exceptional opportunity to gain valuable industry experience and potentially transition into a full-time role upon successful completion of the apprenticeship.