1,476 to 1,500 of 3,168 Permanent Full-Stack Development Jobs

Web Developer

Location
Cambridge, England, United Kingdom
team. The successful candidate will be part of a 3-person web development team, responsible for developing and maintaining full-stack applications using TypeScript. Responsibilities Collaborate with other developers to design, develop and deploy new features. Write clean, maintainable, efficient and testable code. Troubleshoot ...

Senior Software Engineer

Location
Cambridge, England, United Kingdom
teams including product managers, marketing specialists, designers, and globally distributed engineers to translate business requirements into well-engineered solutions. Debug and optimize full-stack solutions, proactively identifying performance bottlenecks, data pipeline failures, and production issues — and driving them to resolution. Contribute to engineering excellence by upholding … field, or equivalent practical experience and transferable skills. Experience with HTML and CSS is a plus, especially when debugging or collaborating on full-stack solutions with partner teams. Benefits and Perks Work from (almost) anywhere for up to 20 days per year Focus on mental health ...

Front End Developer

Location
Telford, England, United Kingdom
fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development. Commercial experience with React and TypeScript. Experience with a modern full-stack React framework, specifically Remix or React Router v7+. Practical server-side rendering experience, including loaders/actions, forms, routing, error handling … automated tests, including unit/integration tests and Playwright end-to-end tests. Comfortable integrating with REST APIs and working with Git-based development and code-review processes. Accessibility to WCAG 2.2 AA, including semantic HTML, keyboard navigation, screen-reader testing and automated accessibility checks. Ideal additional experience ...

Proclaim Automation Developer

Hiring Organisation
Circle Group
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
across departments, contributing to a range of exciting projects while helping to shape the digital future of the business. Key Responsibilities: Drive the development, maintenance, and continuous improvement of business processes through the effective use of AI technologies, ensuring data integrity within Proclaim. Collaborate with stakeholders … translate operational requirements and user journeys into scalable software solutions, agreeing priorities and scope with users and management. Develop and maintain full-stack applications, including React/TypeScript front ends, Electron desktop applications, Python APIs, Node.js services, and SQL databases. Design, optimise, and manage SQL Server ...

Senior Software Engineer

Location
Derry/Londonderry, Northern Ireland, United Kingdom
about clean architecture, performance, correctness, and maintainability - and you enjoy mentoring others - this role is for you. Key responsibilities include Lead the design, development, and delivery of robust software solutions. Ensure architectural alignment, scalability, and high availability. Review code and designs for quality and compliance. Collaborate with infrastructure … maintain system integrity. Mentor team members and promote best practices. Troubleshoot and resolve technical issues efficiently. Document key stages of the software development lifecycle. What we are looking for If you have a third-level qualification in Computer Science or a related subject, and can demonstrate strong experience ...

Backend Software Engineer Python LLM - Finance

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
optimise and deploy large language and multi-modal models with a focus on performance and latency and build scalable MLOps pipelines and full-stack applications to support robust, production-grade AI deployments. Using a consultative approach you'll guide multidisciplinary teams and clients through strategic decisions … above bachelor's degree in Computer Science, AI or related STEM disciplines You have a strong Python software engineering background including and API development You have hands-on experience deploying LLMs and multi-modal models at scale in production You have a strong understanding of scalable MLOps, observability ...

SW Engineer - Cyber (does not qualify for immigration support)

Hiring Organisation
Visa
Location
Foster City, California, United States
Employment Type
Permanent
Salary
USD Annual
LLMs. We are responsible for designing, developing, and implementing next generation data platforms to drive incremental revenue. Essential Functions: Hands-on Programming Full-stack development contributes to the design of backend, databases and queries, API creations and consumptions, and contributes to frontend UI development. … work effectively on multiple concurrent assignments with both AI and non-AI application projects. • Experience working in an Agile and Test-Driven Development environment. • Experience with Continuous Integration and Automated Test tools such as Jenkins, Artifactory, Git, Selenium, Chef desirable. • Strategic thinker and good business acumen to orient ...

Senior Mobile Security Developer - Contract (Inside IR35)

Location
Greater London, England, United Kingdom
role will be pivotal in building, delivering, and driving the security of our mobile platform, while being an integral part of our full-stack mobile practice, contributing to end-to-end development and security excellence across both front-end and back-end mobile systems. … techniques, and tools such as Burp Suite Pro, Frida, Objection, JADX, IDA Pro, Hopper, Radare, ADB, Apktool, YARA, Xcode, and Android Studio. Mobile Development & DevSecOps: Knowledge of Android/iOS development, secure development practices, DevSecOps tooling, testing, and automation frameworks. Development & Reverse ...

Lead Data Scientist - AML Handling

Location
Greater London, England, United Kingdom
initiatives to reduce financial crime risk across Wise. Here’s how you’ll be contributing: End-to-End Automation & EDD LLMs: Lead the development and deployment of AI models designed to augment operational workflows (e.g. Business and Consumer EDD LLMs), specifically targeting the automation of case summaries … mode deployments and parallel execution testing to safely evaluate prompts at scale, while implementing post-deployment monitoring for data and output drift. Full-Stack Deployment: Take ownership of the production pipeline by writing and deploying production-ready Python services. You must be willing to bypass engineering ...

Forward Deployed AI Engineer

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
code, testing, CI/CD and production systems Strong programming skills in Python, TypeScript or similar, with experience across multiple modern languages Full-stack capability, including back-end and data engineering Proven experience building and shipping production LLM/AI applications Hands-on experience with … side projects What's in it for me? Base salary up to £100,000 Hybrid working model with remote flexibility Private healthcare Professional development and funded learning Opportunity to work on modern, AI-enabled systems at scale Clear progression within a growing engineering function We are an equal ...

Experience Engineer (FTC)

Location
Greater London, England, United Kingdom
async data flows Diagnose and fix performance and accessibility issues rather than merely detecting them Handle secrets/config surfaces safely Full-stack Ship features that span frontend, backend service and configuration Debug across the boundary to root cause Significant changes start as a written design … regulated industries (fintech, identity, payments). Pension scheme with Scottish Widows Private medical cover with Vitality Life assurance (4x base salary) Personal Learning & Development Budget Cycle to Work Scheme Company Family Leave 25 days annual leave plus Callsign Bank Holiday Employee Volunteering Program #J-18808-Ljbffr ...

Staff / Senior Software Engineer

Location
United Kingdom
match the growth of our business. Bridge our Machine Learning, Product and Platform Engineering capabilities We have an extremely talented pool of full-stack machine learning and MLOps engineers and an exceptional platform engineering team. We need software 'glue' expertise and capability to bring these … their work together into capabilities the whole team can build on. We would love to hear from you if you: Have expert Python development experience and write production-grade code Have experience bringing products to market - ideally taking a product from 0 to 1, or productising a service ...

AI Resident UK/EMEA

Location
Greater London, England, United Kingdom
Develop and maintain API integrations, ensuring seamless communication between front-end and back-end systems using React and gRPC. Contribute to back-end development with a focus on creating … robust APIs and ensuring smooth communication between the front-end and server using technologies like Node.js or Python. Build, test, and deploy full-stack web applications using React and gRPC, while ensuring responsiveness, performance, and scalability. Optimize web applications for performance, accessibility, and SEO best practices. ...

Staff Software Engineer - Backend

Location
Greater London, England, United Kingdom
that affect multiple teams. Ways of Working A fearless attitude toward owning and fixing any part of the system; Proficiency with AI-assisted development workflows to maximise efficiency; A genuine instinct for end-to-end ownership, deep curiosity, and a desire to thrive in a culture of calculated … esports; Mentorship: you have actively mentored peers or juniors outside of your direct project scope; Professional exposure to Java/Spring frameworks; Full-stack versatility, with the ability to spin up internal tools using React and Next.js. Firmly rooted in our values, EFG is an affirmative ...

Cloud AI Platform Engineer - AI-Native Backend & DevTools

Location
Cambridgeshire and Peterborough, England, United Kingdom
Intellectual Capital Resources Ltd is seeking software engineers with backend or full-stack experience and a focus on AI-native workflow automation. You will work on cloud platform services, leveraging Python/Go, JavaScript/TypeScript, and container tooling. Join a growing tech team developing open ...

Software Developer in Test

Location
Greater London, England, United Kingdom
sums of money around, and because of this, quality is key to everything we do. You will work as part of a full-stack product team of product people, designers, engineers, test engineers and subject matter experts to make our vision a reality. Your responsibilities … will be critical. What we offer in return? Our commitment is to help you flourish in this role, through support with your professional development, opportunities to be involved in key projects, and exposure to challenges that you may not be offered in a larger organisation. We will provide ...

Remote Senior SaaS Architect & Platform Lead

Location
Greater London, England, United Kingdom
Gostack Tech Company in London is seeking a Senior Full Stack Engineer to lead the architectural development of our high-scale SaaS products. You will work directly with the CTO to design robust, secure, and distributed systems across frontend and backend. The role demands ...

GenAI-Driven Senior Software Engineer (Java/Python)

Location
Belfast City District, Northern Ireland, United Kingdom
seeking a Senior Software Engineer (Java or Python) to help shape next‐gen financial software. You will engage in full‐stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‐native solutions with modern JS frameworks. You will also explore ...

Senior Software Engineer — Lead Scalable AI Web Apps

Location
United Kingdom
IRIS Software Group is hiring a Senior Software Engineer to lead the development of large-scale, full‐stack web applications serving millions of users. You will design, build and refine backend APIs with .NET Core and C#, while shaping frontend architecture using modern ...

Senior AI Engineer for Fintech LLM Production (Remote)

Location
United Kingdom
Aveni in the UK is hiring a hands-on Senior AI Software Engineer with strong full-stack experience to build production-ready AI-powered products. You will own features end-to-end, integrating LLM capabilities with microservices, React frontends, and cloud infrastructure on AWS. This remote ...

Senior Software Engineer: AI-Driven Finance, Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
recruiting a Senior Software Engineer (Java or Python) to help shape tech for global finance. You will work on full‐stack development, leveraging Spring Boot, Flask/FastAPI, and modern JS frameworks. Expect cloud-native design, Gen‐AI concepts, and involvement across architecture, infrastructure ...

Lead Engineer - Back End

Location
Wolverhampton, England, United Kingdom
engineering excellence, solution quality, architectural consistency and secure software delivery across full‐stack and Salesforce platforms Lead the design, development and optimisation of scalable, resilient and high‐performing applications, ensuring solutions meet business, customer and regulatory requirements Establish and promote engineering best practices, including … code quality, Test‐Driven Development (TDD), automated testing, integration testing, CI/CD and secure software development throughout the delivery lifecycle Collaborate closely with Product Owners, Architects and Delivery Leads, translating business requirements into robust technical solutions while supporting successful delivery across UK and India‐based ...

Engineering Manager, Treasury

Location
Greater London, England, United Kingdom
wallet and account infrastructure, and the global ledger — building the foundation that lets Reap launch new hubs and markets Lead the design, development, and operation of core treasury systems, staying hands-on enough in the architecture to make and defend real technical decisions Lead wallet and custody integrations … multi-chain address management, or running self-custody infrastructure at scale Embedded finance: Experience supporting B2B and B2C clients with financial infrastructure Full-stack experience: Experience across backend, frontend, infrastructure, and data AI tooling: Experience building or prototyping AI-assisted internal tooling High-growth environments: Experience ...

Software Engineer (PHP / JavaScript)

Location
Gloucester, England, United Kingdom
problematic wholesale into a controlled, profitable channel. It is a low ego, close knit team across sales, operations and IT, with in house development treated as a strategic function, not a support service. They care a lot more about team fit, attitude and communication than ticking every single … Bristol office one day a week, with the rest of the time spent working remotely. The role sits in a small development team working on their own internal platform rather than off the shelf tools. You will spend most of your time on the backend, building and evolving ...

Agent Engineer

Location
Greater London, England, United Kingdom
ticket queues to decisions – and enabling our workforce to take the next great leap forward in productivity. We're looking for a full-stack Agent Engineer to help us design and build agent fleets, AI integrations, APIs, workflows, UIs and services that make this possible. … essential role in advancing Elliptic’s mission to make crypto markets safer, more transparent, and more efficient. What you will do: Lead the development of agent fleets to model complex business processes in Langchain. Develop APIs and workflows that integrate AI and LLM frameworks with business systems. Design ...