126 to 150 of 425 Software Engineering Jobs in London

Python Engineer – SC Cleared Ncounter is supporting a high-impact Defence programme seeking a Python Engineer to build and deliver secure, data-driven software solutions. This role combines strong backend engineering with data integration, with a clear focus on Python development in Linux environments. You will work closely … with stakeholders across engineering, data and operational teams, helping deliver scalable systems that support critical national infrastructure. This is a hands-on engineering position where you will design, develop and optimise backend services and data pipelines. You will contribute to technical direction, improve system performance and ensure solutions ...

platforms. Examples of projects include building high-capacity OMS, low latency EMS platform and market connectivity. This is a rare opportunity to work on engineering an end-to-end in-house built platform supporting global front office business. The ideal candidate would be motivated by leveraging cutting-edge high … throughput, low latency technologies to resolve challenges in trading platforms. In effect, someone who will find the correct solution to an engineering problem when left on their own because they like to solve problems well. Domain knowledge on OMS/EMS/Market Connectivity is. At the same time ...

pretty special and now looking to add a Senior Full Stack Engineer to their team. This isn’t your typical “we use AI” environment. Engineering here is genuinely LLM-first. Think day-to-day development powered by tools like Claude Code and Codex, with engineers actively shaping … Working closely with product and data to solve complex, real-world problems • Playing a key role in evolving how the team leverages AI in software development • Mentoring and raising the bar across engineering 🧠 Tech environment • TypeScript at the core, alongside Python and Ruby • Modern backend frameworks and distributed ...

join a growing AI product business where solutions are built for real-world use, not experimentation. You will sit at the intersection of engineering and client delivery, shaping how generative AI is deployed in complex, regulated environments. The role offers meaningful ownership, exposure to senior stakeholders, and the opportunity … your work used as critical production infrastructure. The Company They are an AI software company that has evolved from bespoke consultancy into a product-led organisation. Their generative AI platform is used by professional services firms to automate structured, document-heavy workflows in highly regulated sectors. The Role Work ...

change, typically leading on cost estimation and supporting creation of detailed planning and benefits realisation for the technology solutions you design. Work closely with Engineering teams, often taking a lead SME role helping to define the vision, establish Architectural Guardrails, Architecture Runways and Detailed Designs as well as unblocking … team as issues arise. Whilst operating as a Solution Architect, you will likely come from a hands-on Software Engineering background with experience leading engineering teams to deliver applications and services, enabling you to quickly build credibility. Rapidly understand and effectively communicate complex technical ideas to board ...

work from home twice a week in a hybrid model. About you: You're an experienced Python Developer with a strong knowledge of software engineering best practices and full SDLC experience You have team leadership experience, happy to mentor and develop others as well as provide ...

Deep knowledge of security architecture: identity, access management, encryption, compliance Experience with integration patterns, event-driven architecture, and hybrid connectivity Degree in Computer Science, Software Engineering, or a related field Bonus points for: AWS Specialty certifications (Advanced Networking, Machine Learning, Security) Multi-cloud experience with Azure or Google ...

infrastructure. Mentor junior developers, sharing your expertise and helping them grow their skills. What You Bring: Educational Background: University graduate level in Software Engineering, Data Science, Computer Science, or related fields. Essential Skills: - Proficient in Microsoft Power BI, including Power Query and DAX. - Strong experience in data modelling ...

bias toward performance and scalability Strong communication skills — you'll present to clients, not just commit to repos Bachelor's degree in Computer Science, Software Engineering, or related field preferred — but shipped work matters more than credentials How to apply Send a short note and your best work ...

Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform ...

commercial clients tackle some of the most complex digital challenges in the world. Their work sits at the intersection of cloud, data, cyber and software engineering, delivering solutions that genuinely make a difference to society. The Opportunity: This is an exciting opportunity for an experienced Cloud Engineer … join a high-performing engineering team working on cutting-edge cloud platforms. Youll be part of a DevOps-first environment, building and operating secure, scalable systems in AWS. Teams are empowered, autonomous and close to end-users, giving you real ownership and the ability to influence technical decisions. What ...

beyond! The role We are now looking for a Machine Learning Engineer to build and deliver innovative AI products to our customers. Your software expertise and machine learning knowledge will help transform our customers' manual processes into AI automated solutions. Your mission will be to ensure our customers receive … future. Take ownership of customer outcomes with the autonomy to make decisions that surprise and delight our customers. Contribute full-stack development including software engineering, DevOps, and MLOps, along with light task and project management to ensure your AI solutions deliver maximum value. We are looking for someone ...

ownership of the audio subsystem, spanning real-time embedded processing through to cloud-based audio pipelines and ML integration. This role sits between embedded engineering and backend/AI — ideal for someone who enjoys both low-level systems and higher-level software. Key Responsibilities Design and build … with ML engineers to enable audio-driven intelligence Debug and improve system performance across the full stack About You 0-3 years’ experience in software engineering, embedded systems, or audio/ML Strong academic background (top university preferred, A grades at A-Level Experience in the following would ...

Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthusiastic, diligent Golang Software Engineer to work on the global Loyalty and Benefits platform in American Express. The candidate should have excellent soft skills, strong technical ability with … tools such as Golang, Kafka and Docker, there is ample opportunity to drive innovation and grow knowledge and skills as an Engineer. As a Software Engineer on an Scrum team, you will be building and enhancing features in the Account domain. You will also coordinate and work with other ...

Work-Model: 1-2 days a month office-visit Salary: up to £90,000 A Senior Python Backend Engineer is needed to join growing software house in London who specialise in helping businesses reduce wasteful processes, costs and energy; and improve their ROI. sustainability meets profitability. Our client aims … Back-end Python Engineers, Data Scientists, and financial experts, who are building the next generation of financial tools. If you're an experience Software Engineer whose passionate about Python, excited by financial technology, and wants to solve complex problems, this could be for you. As a Python Software ...

automate operational processes TECH STACK .NET (backend) React (frontend) MySQL AWS Python (AI and data models) Experience Required Around 2+ years of experience in software development Experience across frontend and backend development (.NET/React) – Angular/Vue is fine Good understanding of software engineering fundamentals Interested ...

help automate operational processes TECH STACK .NET (backend) React (frontend) MySQL AWS Python (AI and data models) Experience Required 3+ years of experience in software development Strong .NET experience Some front-end (React ideally) – however Angular/Vue is fine Good understanding of software engineering fundamentals Interested ...

rely on Bring fresh ideas to the table — challenging existing approaches and proposing better solutions where you see them Work closely with Product and Engineering teams to break down complex problems and deliver impactful features Take ownership of your own development while helping to raise the bar for those … around you Get involved in hiring — helping to assess and attract strong technical talent to the team Stay curious about the wider engineering landscape and bring relevant insights back to the team Key Requirements Strong commercial experience in Kotlin or JVM technologies for backend development Confidence working with Spring ...

Senior Software Engineer (Python) – Reducing Carbon Emissions with Machine Learning! Python on AWS £90-£110,000 per annum plus stock London Office - 1-2 days a week Are you a Senior Software Engineer with a passion for working with curious, humble colleagues to build exceptional customer-focused products … using Python? Do you align with their principles – “Work as much as you want, where you want” - giving Software Engineers the autonomy and support to perform at their best? Do you want to be part of a period of significant growth and opportunity, shaping elegant solutions to complex challenges ...

working with a leading fixed income hedge fund in London that is expanding its front‐office engineering team. The fund has a strong performance track record, a deep commitment to technology, and a culture where engineers work side‐by‐side with quants and traders to build the systems that … investment workflow. It’s a fast-moving, highly technical environment where code quality, performance, and reliability matter. The team runs weekly sprints, uses modern engineering practices (PR reviews, rapid releases, continuous development), and has a strong track record of developing talent. We’ve partnered with this group and their ...

London, up to £750 per day inside IR35 A global banking organisation are looking for a Senior AI Platform Engineer to join a growing engineering team building secure, scalable cloud and AI solutions in a modern multi-cloud environment. This is a hands-on role for someone who enjoys … working at the intersection of cloud platforms, software engineering, and AI enablement. You’ll help design and deliver cloud infrastructure, automation frameworks, and integration services that support innovative AI-driven solutions. Key Responsibilities: Design and implement cloud and AI‐ready solutions on Azure (primary), Oracle Cloud ...

Principal Full Stack Software Engineer Location: Hybrid - 1-2 days a week Salary: (Apply online only)k + 10% Bonus Type: Permanent No Sponsorship Available Overview: We are seeking a Principal Full Stack Software Engineer to lead the design, development, and delivery of scalable, high-performance applications across … modern cloud-based architecture. This is a senior, hands-on leadership role where you will shape technical direction, influence engineering standards, and drive best practice across the full software development lifecycle. You will work closely with product, architecture, and leadership teams to deliver robust, user-centric solutions while ...

Principal Full Stack Software Engineer Location: Hybrid - 1-2 days a week Salary: £(Apply online only)k + 10% Bonus Type: Permanent No Sponsorship Available Overview: We are seeking a Principal Full Stack Software Engineer to lead the design, development, and delivery of scalable, high-performance applications across … modern cloud-based architecture. This is a senior, hands-on leadership role where you will shape technical direction, influence engineering standards, and drive best practice across the full software development lifecycle. You will work closely with product, architecture, and leadership teams to deliver robust, user-centric solutions while ...

members of societies at large to live, work and develop sustainably, in a safe and secure information space. About Our Team Our Full stack engineering team brings together experienced engineers, diverse perspectives, and a flat team structure that enables visibility and impact from day one. With 40–50 professionals … platforms to global insurance systems deployed across multiple countries. AI is an important part of our work, but this role is grounded in strong software engineering fundamentals. We are looking for senior engineers who enjoy architecture, system design, and end‐to‐end delivery, with a genuine interest ...

🚀 Principal Engineer (Contract) – Insurtech | £600/day Outside IR35 I’m working with a high-growth Insurtech scale-up looking for a Principal Engineer to lead a major platform modernisation. 💰 Up to £600/day ...