276 to 300 of 900 Permanent Senior Developer Jobs

96291620192Posted: 2026-09-11Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiThe Senior Java Developer 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 ...

operates in financial services and is a certified B-corporation, with a strong focus on ethical and environmental investments. You would join as the senior developer, focusing on the backend. Exposure and understanding of the frontend is ideal, Angular or React, the technologies in play. You’ll upskill ...

Opportunity: As a Senior Developer, you’ll have significant autonomy to shape how some of the world’s largest telecom operators communicate with consumers and detect issues across their networks. You’ll help evolve the platform into a proactive, intelligent system built around Observe - Think - Act workflows, designing ...

Provider that is undertaking a significant investment in its digital infrastructure and operational systems. As part of this growth, we are seeking an experienced Senior Odoo Developer to take ownership of the ongoing development, optimisation, and future scalability of the company’s core ERP/MRP platform.This … will join a collaborative and forward-thinking team, taking a lead role in driving technical excellence, modernisation initiatives, and long-term platform strategy.The RoleAs Senior Odoo Developer, you will be responsible for the architecture, development, maintenance, and enhancement of the company’s Odoo ecosystem. This includes leading major ...

consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Senior Full Stack Node Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems … create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact. As a Senior Full Stack Node Developer , you will play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining ...

SENIOR SOFTWARE ENGINEER PHP Purpose To design and build the modular platform that will carry the business capability as we move off a forty-year-old system working in PHP 8.3 with Slim, Doctrine and PostgreSQL and to share ownership of it properly across a small team. The stack … high-level business requirements rather than from a specification handed to you. This is the majority of the work ahead. Bringing on one junior developer , which is a real part of this role and not a line on a job description. Essential experience Doctrine ORM, or another data-mapper ...

Senior Software Engineer/Full Stack/.NET/C#/Angular Exciting opportunity to share your knowledge and experience with more junior team members. You will have a pivotal role in the direction of key projects as well the opportunity to influence the technology direction of the company. ...

City of London)Work pattern: HybridSalary: Up to UK 120,000Industry: Financial Services (Investor Services)The Role An opportunity has arisen for an Architect & Senior Developer within the IT function of an Investor Services business in the City of London. You will design and deliver high-quality software … usage to ensure secure, explainable and compliant solutions.Your Profile Degree in Computer Science (or related) preferred; 10+ years’ experience with 3+ years in a senior architecture role.Expertise in .NET/C#/SQL Server; React.js and Python desirable.Deep domain knowledge of financial markets technology (FCM, clearing broker, investment bank ...

City of London)Work pattern: HybridSalary: Up to UK 120,000Industry: Financial Services (Investor Services)The Role An opportunity has arisen for an Architect & Senior Developer within the IT function of an Investor Services business in the City of London. You will design and deliver high-quality software … ensure secure, explainable and compliant solutions. Your Profile Degree in Computer Science (or related) preferred; 10+ years' experience with 3+ years in a senior architecture role. Expertise in .NET/C#/SQL Server; React.js and Python desirable. Deep domain knowledge of financial markets technology (FCM, clearing broker, investment ...

Senior Software Developer to join a growing software engineering team delivering mission-critical solutions within logistics, automation and industrial environments. This role offers the opportunity to work on the design, development and deployment of scalable software platforms that integrate with advanced operational technologies, warehouse systems, robotics, and enterprise … play an active role in developing new functionality, enhancing existing products, and supporting customers throughout the software lifecycle. The position is ideal for a developer who enjoys solving complex technical challenges, collaborating with multidisciplinary teams, and working on software that powers real-world operational systems. Key Responsibilities Design, develop ...

Senior Software Developer to join a growing software engineering team delivering mission-critical solutions within logistics, automation and industrial environments. This role offers the opportunity to work on the design, development and deployment of scalable software platforms that integrate with advanced operational technologies, warehouse systems, robotics, and enterprise … play an active role in developing new functionality, enhancing existing products, and supporting customers throughout the software lifecycle. The position is ideal for a developer who enjoys solving complex technical challenges, collaborating with multidisciplinary teams, and working on software that powers real-world operational systems. Key Responsibilities Design, develop ...

established tech consultancy is seeking Senior Developers to join their dynamic team. This innovative firm is focused on delivering end-to-end digital transformation projects across diverse industries such as Retail and Healthcare. With a strong commitment to employee development and a culture that prioritizes diversity, equity, and inclusion … thrive in a supportive environment. As a Senior Developer, you will work on complex projects, utilizing modern technologies and practices while engaging directly with clients. If you're passionate about technology and looking for a role that offers both challenge and opportunity, this position is perfect for you. ...

established tech consultancy is seeking Senior Developers to join their dynamic team. This innovative firm is focused on delivering end-to-end digital transformation projects across diverse industries such as Retail and Healthcare. With a strong commitment to employee development and a culture that prioritizes diversity, equity, and inclusion … thrive in a supportive environment. As a Senior Developer, you will work on complex projects, utilizing modern technologies and practices while engaging directly with clients. If you're passionate about technology and looking for a role that offers both challenge and opportunity, this position is perfect for you. ...

慨正橡扯 based in Belfast is seeking a Senior Developer to join their CIS Oncology (ChemoCare) team to design and develop software that supports chemotherapy treatment management across the NHS. This role requires a strong professional background in C# and ASP.NET MVC, along with experience in SQL Server ...

consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Senior Full Stack Kotlin Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems … create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact. As a Senior Full Stack Kotlin Developer, you will play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining ...

consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Senior Full Stack Kotlin Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems … create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact. As a Senior Full Stack Kotlin Developer, you will play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining ...

consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Senior Full Stack Kotlin Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems … create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact. As a Senior Full Stack Kotlin Developer, you will play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining ...

Senior Frontend Developer you will be part of our cross-functional Agile development team delivering EDI products. This is a hands-on senior role for someone who can design and build high-quality, maintainable user interfaces while also helping shape the technical direction of the team. … teams, backend developers, product stakeholders, and other engineers to deliver user-friendly features as part of our cloud-native EDI platform. As a senior member of the team, you will be expected to lead by example, mentor other developers, challenge existing approaches where appropriate, and suggest practical improvements ...

platform remains the core of our business for the foreseeable future, we are rapidly scaling our modern data architecture. We are seeking a Senior Developer who is comfortable navigating this hybrid landscape - someone eager to blend existing knowledge with emerging AI and machine learning tools to build ...

platform remains the core of our business for the foreseeable future, we are rapidly scaling our modern data architecture. We are seeking a Senior Developer who is comfortable navigating this hybrid landscape - someone eager to blend existing knowledge with emerging AI and machine learning tools to build ...

Application Developer, SeniorThe Opportunity:At a certain point, experience-based system design can start to look like clairvoyance. When you’ve developed so many systems that you can not only orchestrate the best solution for any technology-based challenge, but you can also anticipate and preempt future issues ...

looking for an experienced full stack developer to join our engineering team in Cambridge. You will primarily be working on the Controller - a web-based management platform for our product. The Controller provides security policy and software updates for the endpoint security product installed on the client PCs. … Experience Platform (https://workforceexperience.hp.com/), bringing the benefits of Wolf Security to a broader customer base. What you will do as a Senior Full Stack Developer: The API and UI backend (Python 3, Django, SQL) The background worker service/task queues (Celery) Front ...

looking for an experienced full stack developer to join our engineering team in Cambridge. You will primarily be working on the Controller - a web-based management platform for our product. The Controller provides security policy and software updates for the endpoint security product installed on the client PCs. … Experience Platform (https://workforceexperience.hp.com/), bringing the benefits of Wolf Security to a broader customer base. What you will do as a Senior Full Stack Developer: The API and UI backend (Python 3, Django, SQL) The background worker service/task queues (Celery) Front ...

SEFE Group in London is seeking a Senior Developer to design, develop, and deliver business-critical applications across the trading lifecycle. You will combine hands-on engineering with technical leadership and mentoring to shape SEFE’s technology landscape. You will deliver scalable software for trading, risk, and operations ...

Pinewood.AI is seeking an experienced Senior Developer to join our Solihull team, helping design and deliver the Automotive Intelligence Platform. You will work closely with Lead Developers, Product, and QA to implement robust features and integrations across the full .NET stack. You will stay hands-on, contribute ...