1 to 25 of 167 Software Engineering Jobs in the City of London

C++Software Engineering Manager

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
C++ Software Engineering Manager A brand new and exciting opportunity has arisen for a C++ Software Engineering Manager with extensive knowledge of C++ to join a market leading financial services company based from their Old Street, London office. Please note you will be expected … office 4 days per week. The C++ Software Engineering Manager will take lead and mentor a team of 5 developers and QA's while also being able to be hands-on when called upon. This is an excellent opportunity for a C++ Software Engineering Manager ...

Machine Learning Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
personalised experiences that are both simple and beautiful. About the Job – Machine Learning Engineer We are looking for a Machine Learning Engineer with strong software engineering fundamentals to join our team of domain experts and researchers. You will be responsible for building robust, scalable ML systems that bring … translate experimental models into reliable, maintainable software. Optimise ML systems for performance, scalability, and cost-efficiency in cloud environments (distributed clusters, GPUs). Establish engineering best practices for ML development, including testing, CI/CD, and code review standards. Progression Timeline Month 1: Onboard to existing ML codebase ...

Senior Software Engineer

Hiring Organisation
Ontik
Location
City of London, London, United Kingdom
Senior Software Engineer 📍 Location: Onsite, London, United Kingdom ⌛ Type: Full-time 💰 Compensation: Negotiable (Competitive salary + equity) About Ontik Ontik is an ambitious, early-stage B2B financial operations platform designed to streamline and simplify complex financial workflows for heavy duty industries. We’re scaling rapidly and looking … high-performance, ownership-driven environment, where you can make a direct impact on the product and help shape its future. Role overview As a Software Engineer (Full-Stack) at Ontik, you’ll play a pivotal role in building and scaling our financial operations platform. This is a hands ...

C++Software Engineering Manager

Hiring Organisation
Understanding Recruitment
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
C++ Software Engineering Manager A brand new and exciting opportunity has arisen for a C++ Software Engineering Manager with extensive knowledge of C++ to join a market leading financial services company based from their Old Street, London office. Please note you will be expected ...

Software Engineer - Defence

Hiring Organisation
Paritas Recruitment
Location
City of London, London, United Kingdom
Software Engineer – Custom Software (Android) London Office Hybrid working – approx. 20% onsite URGENT contract - Initial 4 months with high likelihood of extension We’re looking for a Software Engineer with strong Android expertise to join a high-impact custom software team delivering solutions for a major … defence client. This role offers the opportunity to work on complex, mission-critical systems using modern engineering practices in a collaborative, agile environment. You’ll be part of a well-established engineering team, contributing to the design, development, and enhancement of bespoke software applications tailored to specific ...

Site Reliability Engineer

Hiring Organisation
Block MB
Location
City of London, London, United Kingdom
visualisations, and is becoming the operating system for trading teams globally. The role You’ll be the reliability specialist embedded in a product engineering team, owning how distributed systems are designed, run and scaled rather than sitting in a separate ops silo. Expect real‐time data, high‐throughput pipelines … security and resilience. Build and enhance observability stacks for metrics, logging, tracing and alerting, and guide incident response. Mentor engineers in distributed systems, reliability engineering and infrastructure design, acting as a technical reference point. What you bring 7+ years in software engineering, SRE, DevOps or infrastructure roles ...

Generative AI Engineer

Hiring Organisation
SearchWorks
Location
City of London, London, United Kingdom
seeking a versatile GenAI Engineer who can work across the full stack of GenAI applications, from model integration and prompt engineering to building intuitive user interfaces. You'll build production-ready AI features that empower business users to leverage the power of GenAI within their planning workflows, requiring both … deep ML knowledge and strong software engineering skills. *Hybrid contract position in london Key Responsibilities: Build and deploy end-to-end GenAI features and APIs Integrate and optimize LLMs using prompt engineering and RAG Develop conversational and agentic AI workflows Measure and improve model quality, performance ...

Software Engineering Manager - UCX (Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
client journeys and delivering on HL's vision to give people financial freedom. You will work with like-minded people from business, product and engineering functions to develop and refine client journeys covering onboarding, KYC, account management and investment workflows in a secure and compliant environment. By joining … Android using cross platform React Native technology stack. Solid experience & knowledge of React Native is a must-have. Define and uphold mobile engineering standards, best practices, and architectural principles. Lead technical decision-making, balancing short-term delivery needs with long-term maintainability and scalability. Ensure applications are performant, accessible ...

Agentic AI Technical Lead

Hiring Organisation
Computer Futures
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
Factory. Deep technical understanding of GenAI tools, such as GPT models, and Agentic AI frameworks, such as Langgraph & Langchain, required. Strong full stack/software engineering skills also preferable. To provide technical leadership for a team of ~15 Capgemini Invent technical developers across data science, software engineering ...

Senior Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
Senior Software Engineer (Python) 💰 Up to £130,000 + excellent benefits (including work from abroad) 📍 Hybrid - 2 days onsite in Central London (London Bridge) Are you a Senior Python Engineer who loves solving deep technical challenges? Want to help reinvent how future hardware is created? 🚀🔬 Join a top-tier … engineering team building a revolutionary platform that turns high-level hardware requirements into complete circuit designs. You’ll work on complex problems at the crossroads of software, data and engineering, collaborating with experts across multiple disciplines. What You’ll Do Own and evolve backend systems across data ...

Senior Software Engineer

Hiring Organisation
Addition
Location
City of London, London, United Kingdom
Senior Software Engineer (Python - FastAPI) This fast-growing consultancy is pushing the boundaries of AI and data science, helping clients turn complex challenges into scalable, production-ready solutions. They’re now hiring a Senior Software Engineer who can blend deep technical expertise with a practical, delivery-focused mindset. … above What You’ll Be Doing: Leading the end-to-end design and build of applications that utilise advanced AI and data-led software solutions. Developing scalable data pipelines and backend services that support complex modelling work. Setting standards for clean, efficient engineering across Python(FastAPI ...

Senior Full Stack Data Engineer (Client Facing)

Hiring Organisation
Decho Group
Location
City of London, London, United Kingdom
driven solutions that transform how organisations make decisions. In October 2025, Accenture acquired Decho Group, recognising our unique ability to combine deep engineering expertise with strategic advisory, tackling mission-critical problems in defence, healthcare, and commercial industries. Joining Decho means joining a consultancy where AI meets engineering excellence. … change lives and industries. The Role We’re seeking Senior Consultant Engineers who want to apply their technical mastery in AI consultancy and Palantir engineering while shaping the future of data-driven decision-making. This is a hands-on, client-facing role where you’ll lead technical delivery, partner ...

Technical Lead - Head of Engineering - 2 Days Peterborough or London

Hiring Organisation
ZENZO DIGITAL LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
systems that power one of the UKs leading media groups. Were looking for a hands-on Tech Lead moving into a Head of Engineering role or current Head of Engineering to lead this change from the front, a full-stack technologist who codes with confidence, architects with foresight … inspires teams to deliver with purpose. Youll own the engineering direction across multiple domains; designing scalable cloud-native platforms, embedding DevSecOps excellence, and ensuring our technology foundation accelerates the business. DevSecOps would be desirable to have but so long as you have DevOps that is fine. This ...

Senior Software Engineer - .Net Contract

Hiring Organisation
Curated
Location
City of London, London, United Kingdom
Senior Software Engineer - .Net Contract UK, Remote | Contract Inside IR35 | 6 months Start - ASAP Curated is partnering with a highly successful InsurTech that is continuing to scale and modernise its core technology platform. The business operates at significant scale, supports complex, data-driven products, and is investing heavily … engineering capability as part of a long-term transformation programme. They are expanding multiple engineering teams and are looking to bring in experienced contract Software Engineers to support high-impact delivery across a critical platform. This role will suit senior engineers who enjoy working on large, evolving ...

Senior AI Engineer | GenAI | Information Retrieval | ML | NLP | Hybrid London | Up to £130k

Hiring Organisation
Maze
Location
City of London, London, United Kingdom
features. You will: Build LLM-powered workflows, chat systems, and assistant-style features. Develop simple, reliable systems that solve real customer problems (no over-engineering). Work closely with product and UX to shape user-facing AI experiences. Deploy LLM models and agentic components in production. You bring: Strong … hands-on experience with GenAI, LLMs, agentic frameworks , or chat/workflow apps. Excellent Python and software engineering fundamentals. Solid cloud experience (AWS preferred, GCP/Azure fine). Product-minded approach and ability to work cross-functionally. 2. Senior AI Engineer - Information Retrieval (Engineering-Focused ...

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
City of London, London, United Kingdom
Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang, Typescript and Kubernetes experience . Python skills would also … senior contributor to the development and operation of our cutting-edge cloud-based platform. You should have a passion for both science and engineering, a proven ability to deliver production-ready solutions, and a collaborative spirit to work closely with our product and research teams. Note: the role ...

Senior Cloud Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
available cloud environments using public cloud platforms Building and maintaining secure, resilient network architectures (virtual networks, routing, firewalls, load balancing) Working closely with product, engineering, and delivery teams to translate business needs into scalable infrastructure Influencing technical direction across dependent engineering teams to improve platform reliability and delivery … Creating automated provisioning and deployment pipelines using Infrastructure as Code Continuously improving platform architecture through modern cloud engineering practices Managing cloud resources efficiently while meeting governance and compliance requirements Supporting and mentoring other engineers to promote high standards of engineering practice Diagnosing and resolving infrastructure and platform issues ...

Senior Software Engineer Java - Futures Trading

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Senior Software Engineer/Developer (Java AWS Kafka) London/WFH to £140k Are you a Java technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global, cloud-native, prime broker that is replacing the legacy infrastructure used … mission critical systems in collaboration with Product Managers to understand and define new features and coordinating with other developers with the goal of writing software as one. You'll be empowered to implement the latest tech, seeking continual improvement and can build a team around you, progressing ...

Java Software Engineer - Tech for Good

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Java Software Engineer/Developer (Full Stack Java) London/WFH to £100k Are you Java technologist? You could be progressing your career in a hands-on, impactful, Software Engineer role, working on a 'tech for good' product that is helping to drive efficiencies … highly complex real-time shift rota application, hosted on AWS and available via the web or mobile device (iOS/Android). As a Software Engineer you will play a crucial role in re-architecting and enhancing the scheduling platform to a Java and Angular codebase (from Ruby ...

Head of Engineering: eCommerce

Hiring Organisation
Reward Gateway
Location
City of London, London, United Kingdom
employee experience that will attract, engage, and retain top talent through employee benefits, strategic reward and recognition, well-being, and much more. As our Engineering Head of eCommerce, you lead the teams responsible for the delivery of our eCommerce marketplace products. You will drive the implementation and execution … eCommerce initiatives, ensuring they are robust, scalable, and secure amidst a rapidly evolving tech landscape. You will guide a highly skilled Engineering team toward the creation of a global marketplace meeting the needs of both users and merchants. You will oversee delivery across both web and mobile apps with ...

Senior Backend Software Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
About Us: We’re a VC-backed stealth-mode company building behavioural AI solutions for the retail industry. Our platform is designed from the ground up — no legacy, no patchwork systems — just a clean slate ...

AI Engineer

Hiring Organisation
Cerberus Capital Management
Location
City of London, London, United Kingdom
products into their existing workflows to drive high adoption and value. Move fast and iterate: Work in an agile environment where experimentation, pragmatic engineering, and rapid iteration are key to creating business value. Leverage modern tools and methods: Use contemporary ML frameworks, cloud platforms, and MLOps best practices … Communicate insights clearly: Distill complex technical findings into concise, actionable narratives for technical and business audiences alike. Keep learning and pushing boundaries: Expand your engineering toolkit across the full ML development lifecycle—from prototyping to deployment—and explore new architectures, tools, and approaches to solving complex, real-world problems. ...

Full Stack Software Engineer

Hiring Organisation
Firenze
Location
City of London, London, United Kingdom
credit infrastructure is underpinned by innovation, cutting-edge technology, and an unwavering commitment to driving client outcomes. Role Overview As a Full Stack Software Engineer , you’ll design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust … role with plenty of opportunity to develop your technical depth , gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems , you’ll be shaping our platform from the ground up and growing alongside a team that values mentorship ...

Head of Mobile Engineering & Architecture - React & AWS

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £900 per day + Outside IR35
Head of Mobile/Head of Mobile Engineering/Head of Mobile Technology/Mobile Technology Director/Head of Mobile Architecture Overview: Really excited to be sharing this outstanding opportunity, we've partnered with a leading UK FS/FinTech client, trusted by million's of users … help shape and deliver this transformation programme where you will play an absolutely critical role. You will be working closely with the Head of Engineering to shape modern Mobile and Web technology that will transform how people invest and manage their finances. There wont be any line management involved ...

Research Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
hiring AI Engineers to design, build, and deploy production-grade GenAI systems in a high-stakes legal environment. This is a deeply hands-on engineering role focused on shipping reliable systems used by real customers. Key responsibilities Build and deploy LLM-powered features across drafting, prosecution, and litigation workflows … Collaborate closely with full-stack engineers and domain experts What they’re looking for Strong AI research background with top publications or a strong software engineering background Excellent production engineering fundamentals regardless of background No data-science-heavy profiles Comfortable being scrappy and hands ...