1 to 25 of 334 Software Engineering Jobs in the City of London

HL are looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and … of the whole organisation, transforming 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 us, you'll help deliver innovative … Be part of HL's future. Be part of the future of investing. Shape it with us. What You'll Be Doing Building and deploying scalable, secure, and compliant software at pace. Integrating HL web and mobile apps with existing and new systems to deliver a seamless client experience across a range of products and services. Delivering value iteratively More ❯

Senior AI Software Engineer London £90,000-£130,000 I’m partnering with a dynamic AI consultancy that embeds itself within client businesses, listening closely, then building bespoke agentic AI solutions that automate processes, improve speed, and enhance decision-making. Role Responsibilities As a Senior AI Applied Engineer, you will: Build & Deploy AI-Driven Software Solutions You’ll … blend software engineering and AI expertise to develop scalable, production-grade systems leveraging generative AI and agentic automation. Own Project-Based Work Across Diverse Domains You’ll tackle varied engagements, ranging in length and complexity, and support multiple clients. Ensure Scalable and Reliable Deployment Your role includes end-to-end responsibility for deploying AI solutions that are robust … translating client needs into technical solutions, requiring strong communication and stakeholder-facing capabilities. Leverage Generative AI Expertise Utilise your hands-on experience with generative AI tools or workflows, prompt engineering, LLM integration, or similar, but the emphasis is on engineering implementation and delivery. Who We're Looking For Essential Qualifications & Experience Strong software engineering background with More ❯

Senior AI Software Engineer London £90,000-£130,000 I’m partnering with a dynamic AI consultancy that embeds itself within client businesses, listening closely, then building bespoke agentic AI solutions that automate processes, improve speed, and enhance decision-making. Role Responsibilities As a Senior AI Applied Engineer, you will: Build & Deploy AI-Driven Software Solutions You’ll … blend software engineering and AI expertise to develop scalable, production-grade systems leveraging generative AI and agentic automation. Own Project-Based Work Across Diverse Domains You’ll tackle varied engagements, ranging in length and complexity, and support multiple clients. Ensure Scalable and Reliable Deployment Your role includes end-to-end responsibility for deploying AI solutions that are robust … translating client needs into technical solutions, requiring strong communication and stakeholder-facing capabilities. Leverage Generative AI Expertise Utilise your hands-on experience with generative AI tools or workflows, prompt engineering, LLM integration, or similar, but the emphasis is on engineering implementation and delivery. Who We're Looking For Essential Qualifications & Experience Strong software engineering background with More ❯

Contract Solution Architect/Principal Consultant (Cloud & Software Engineering) Hybrid (3 days onsite per week, West London) Rate: £575 to £625 per day (Outside IR35) Contract Length: 3 months with option to extend Are you an accomplished customer facing Solution Architect or Principal Consultant with a track record of leading complex, cloud-first transformations ? Do you thrive at … the intersection of technical strategy, architectural design, and customer success ? Our client, a fast-scaling cloud consultancy, partners with leading organisations to modernise their technology landscape through DevOps, platform engineering, automation, and software transformation . Following continued growth, they’re expanding their senior technical leadership team to shape and deliver large-scale customer engagements. As a Solution Architect …/Principal Consultant , you will: Define end-to-end technical architectures that solve complex business challenges. Partner directly with C-level and engineering stakeholders to shape technical strategy and delivery direction. Lead multi-disciplinary teams through architecture, design, and implementation , ensuring scalability, security, and performance. Influence technology decisions across modern programming, infrastructure, and automation ecosystems. Act as a trusted More ❯

Contract Solution Architect/Principal Consultant (Cloud & Software Engineering) Hybrid (3 days onsite per week, West London) Rate: £575 to £625 per day (Outside IR35) Contract Length: 3 months with option to extend Are you an accomplished customer facing Solution Architect or Principal Consultant with a track record of leading complex, cloud-first transformations ? Do you thrive at … the intersection of technical strategy, architectural design, and customer success ? Our client, a fast-scaling cloud consultancy, partners with leading organisations to modernise their technology landscape through DevOps, platform engineering, automation, and software transformation . Following continued growth, they’re expanding their senior technical leadership team to shape and deliver large-scale customer engagements. As a Solution Architect …/Principal Consultant , you will: Define end-to-end technical architectures that solve complex business challenges. Partner directly with C-level and engineering stakeholders to shape technical strategy and delivery direction. Lead multi-disciplinary teams through architecture, design, and implementation , ensuring scalability, security, and performance. Influence technology decisions across modern programming, infrastructure, and automation ecosystems. Act as a trusted More ❯

a market leading consultancy in central London, who due to high level success and expansion of their offering are adding to their highly skilled team. This position leads talented software engineering teams operating at the intersection of product innovation, scalable technology, and cross-functional collaboration. The successful candidate will take ownership of designing, building, and delivering high-impact … or Django) and React.js, ensuring high standards of performance and maintainability. Team Development: Coach and support engineers at all experience levels, encouraging professional growth, technical excellence, and collaborative delivery. Engineering Excellence: Champion strong DevOps principles, including CI/CD pipelines, automated testing, and cloud-native deployment through containerisation (Docker and Kubernetes). Cross-Functional Partnership: Work closely with product … Problem-Solving: Communicate intricate architectural decisions in a clear, practical way for both technical and non-technical stakeholders. Skills and Expertise Over 5 years of experience in full-stack software engineering. Expertise in designing and developing scalable web applications and distributed systems. Proficient in software architecture, containerization, and cloud platforms including AWS, Azure, and GCP. Experienced in leading More ❯

a market leading consultancy in central London, who due to high level success and expansion of their offering are adding to their highly skilled team. This position leads talented software engineering teams operating at the intersection of product innovation, scalable technology, and cross-functional collaboration. The successful candidate will take ownership of designing, building, and delivering high-impact … or Django) and React.js, ensuring high standards of performance and maintainability. Team Development: Coach and support engineers at all experience levels, encouraging professional growth, technical excellence, and collaborative delivery. Engineering Excellence: Champion strong DevOps principles, including CI/CD pipelines, automated testing, and cloud-native deployment through containerisation (Docker and Kubernetes). Cross-Functional Partnership: Work closely with product … Problem-Solving: Communicate intricate architectural decisions in a clear, practical way for both technical and non-technical stakeholders. Skills and Expertise Over 5 years of experience in full-stack software engineering. Expertise in designing and developing scalable web applications and distributed systems. Proficient in software architecture, containerization, and cloud platforms including AWS, Azure, and GCP. Experienced in leading More ❯

Introduction Saab in UK is growing rapidly, with over 500 colleagues across eight sites. We bring together Swedish heritage and British expertise to drive innovation in areas such as software engineering, underwater robotics, radars, AI, and armed forces training. Joining Saab in UK means contributing to the security and resilience of society while building a career with real … Unit. You'll join Saab's Public Safety Solutions business unit where we develop and deploy Command, Control, and Communication (C3) and a team dedicated to developing mission-critical software solutions that help police, fire and rescue services, ambulance dispatchers, airports, and public transport agencies coordinate and respond to incidents that matter. As a Software Engineer within Telephony … and data connections across diverse and demanding environments. Your work will directly contribute to saving lives and keeping societies safe. Key Responsibilities: Design, develop, and maintain telephony and communication software solutions. Work with modern protocols and technologies (e.g. SIP, RTP, VoIP, PBX systems, messaging frameworks). Collaborate with cross-functional Agile teams to deliver high-performance, scalable, and resilient More ❯

understanding of Agile Methodologies Strong verbal and written communication skills Ability to explain technical problems to non-technical people About Us: Ascendion is a leading provider of AI-first software engineering services. Our applied AI, software engineering, cloud, data, experience design, and talent transformation capabilities accelerate innovation for Global 2000 clients. Ascendion is headquartered in New More ❯

to help clients harness the full potential of their data. We’re entering our next phase of growth and are looking for a skilled AI Engineer to broaden our engineering expertise — designing, programming, and training complex networks of algorithms to expand our AI programmes. What you'll be doing In this role, you’ll evaluate and compare algorithm performance … business decisions and strategic planning. This is a hands-on, high-impact role for someone who is creative, curious, and technically skilled and loves working across the intersections of software engineering, data science, and AI innovation. Design, develop, and deploy AI/ML models using Microsoft Azure technologies. Build, train, and fine-tune machine learning models and algorithms … to solve business challenges. Assess algorithm performance against large, real-world data sets. Support and oversee ongoing AI/ML engineering projects and delivery for multiple clients. Implement scalable, production-ready AI solutions using best practices in MLOps. Collaborate with consultants, clients and data engineers to deliver robust, high-value client solutions. Contribute to the continuous evolution of our More ❯

to help them hire the best talent across the UK and Europe. We’re building a team of consultants who are passionate about placing top talent within technologies including Software Engineering, Data, AI & Machine Learning, ERP, Cloud, and Data Centre software or hardware. Our London team is hiring experienced recruiters who take ownership of their careers, thrive … new client partnerships Strong understanding of recruitment and sourcing processes Evidence of achieving and exceeding financial/revenue targets Experience within one or more of our core technology areas: Software Engineering, Data, AI & Machine Learning, ERP (SAP/Oracle/Salesforce/MS Dynamics), Cloud (AWS/Azure/GCP), or Data Centre software/hardware Perks More ❯

to help them hire the best talent across the UK and Europe. We’re building a team of consultants who are passionate about placing top talent within technologies including Software Engineering, Data, AI & Machine Learning, ERP, Cloud, and Data Centre software or hardware. Our London team is hiring experienced recruiters who take ownership of their careers, thrive … new client partnerships Strong understanding of recruitment and sourcing processes Evidence of achieving and exceeding financial/revenue targets Experience within one or more of our core technology areas: Software Engineering, Data, AI & Machine Learning, ERP (SAP/Oracle/Salesforce/MS Dynamics), Cloud (AWS/Azure/GCP), or Data Centre software/hardware Perks More ❯

data-driven decision-making. Key Responsibilities Design and build data products, with proficiency throughout the data lifecycle. Develop robust data models through close collaboration with business users and the engineering team. Partner with senior management, operational leads, and other stakeholders, coaching and supporting a data-driven culture, including KPI definition and reporting frameworks. Accountable for data extraction, transforming JSON … enable data-driven decision-making Ensure data quality and accuracy by implementing data validation, monitoring, and error-handling processes. Requirements At least 8 years' experience in data analytics, data engineering, software engineering, or a similar role Expertise in developing best practices for data engineering and analytics with a strong background in data modelling including indexing strategies. More ❯

is the core technology crucial to Ki's success – allowing us to evolve underwriting intelligently and unlock massive scale. We're a multi-disciplined team, bringing together expertise in software and data engineering, full stack development, platform operations, algorithm research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. … We're looking for a Staff Software Engineer to join our Engineering team. You will provide technical leadership for both delivery squads and the wider engineering organisation. Along with our engineering leadership, you’ll champion engineering excellence and high standards of quality through an environment of continuous improvement. You will be hands-on, directly delivering … new impactful software. You will be able to propose, design, and execute initiatives independently, leading colleagues to deliver on these goals. Principal Accountabilities: - Build robust and scalable software for business critical, web-based applications - Design, build, test, document and maintain API’s and integrations - Develop new functionality in our core Kotlin based services, working in multi-disciplinary teams - Ensure More ❯

is the core technology crucial to Ki's success – allowing us to evolve underwriting intelligently and unlock massive scale. We're a multi-disciplined team, bringing together expertise in software and data engineering, full stack development, platform operations, algorithm research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. … We're looking for a Staff Software Engineer to join our Engineering team. You will provide technical leadership for both delivery squads and the wider engineering organisation. Along with our engineering leadership, you’ll champion engineering excellence and high standards of quality through an environment of continuous improvement. You will be hands-on, directly delivering … new impactful software. You will be able to propose, design, and execute initiatives independently, leading colleagues to deliver on these goals. Principal Accountabilities: - Build robust and scalable software for business critical, web-based applications - Design, build, test, document and maintain API’s and integrations - Develop new functionality in our core Kotlin based services, working in multi-disciplinary teams - Ensure More ❯

value. * Contributing to projects such as developing a digital high net worth insurance offering and/or creating a portfolio analysis tool. Responsibilities: * Participate in different phases of the software development lifecycle (SDLC) across multiple projects. * Design technical solutions and produce supporting documentation in line with internal delivery frameworks. * Comply with and help enforce design, coding, and testing standards … policies, and software engineering best practices. * Collaborate with testing teams during product test and UAT phases to resolve assigned defects. * Support code deployment and release processes across environments. * Report status, issues, and risks to technical leads regularly. * Troubleshoot and resolve issues arising during daily operations, providing timely solutions as required. * Enhance technical and software engineering skills More ❯

Senior Engineering Manager Salary: Up to £130,000 + Benefits Location: London, UK (2 days a week, Hybrid) We've partnered with a profitable B2C PE-backed start-up that's transforming how people enjoy the world's best locations and experiences by financially facilitating world exploration with incredible savings. They are currently looking for a Senior Engineering Manager to lead their existing team (circa 15), made up of passionate and like-minded Full stack JavaScript Engineers. As the Senior Engineering Manager you'll play a pivotal role in driving innovation, leading and ensuring the scalability of their product. You will play a key part in translating technical requirements to non-technical audiences at C-suite …/board level, whilst remaining close to the code and has a passion for this! What we expect from the Senior Engineering Manager: • 10+ years experience in software engineering - All things JavaScript, TypeScript + Java • 3+ years experience as an engineering manager - proven people/technical leadership experience. • Proven experience in system architecture design, including scalable More ❯

Senior Engineering Manager Salary: Up to £130,000 + Benefits Location: London, UK (2 days a week, Hybrid) We've partnered with a profitable B2C PE-backed start-up that's transforming how people enjoy the world's best locations and experiences by financially facilitating world exploration with incredible savings. They are currently looking for a Senior Engineering Manager to lead their existing team (circa 15), made up of passionate and like-minded Full stack JavaScript Engineers. As the Senior Engineering Manager you'll play a pivotal role in driving innovation, leading and ensuring the scalability of their product. You will play a key part in translating technical requirements to non-technical audiences at C-suite …/board level, whilst remaining close to the code and has a passion for this! What we expect from the Senior Engineering Manager: • 10+ years experience in software engineering - All things JavaScript, TypeScript + Java • 3+ years experience as an engineering manager - proven people/technical leadership experience. • Proven experience in system architecture design, including scalable More ❯

and national defence to appoint exceptional Machine Learning Engineers . This fast-growing organisation is transforming mission-critical combat planning and operational decision-making by building next-generation AI software tools for Western forces. Founded in 2023, the company has already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of … ex-Palantir and ex-OpenAI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging NLP, GenAI, Computer Vision, and Reinforcement Learning technologies. Position location (hybrid) : London (Shoreditch) or Paris (Le Marais) We are seeking Machine Learning Engineers who are passionate about using AI technology … latest research Requirements: MSc in Machine Learning, Computer Science, or a related field 5+ years of experience in machine learning, with an expertise in modelling, prototyping, and evaluation Strong software engineering skills with a focus velocity Excellent communication skills and the ability to flourish in a team Located in London/Paris and open to working in office More ❯

and national defence to appoint exceptional Machine Learning Engineers . This fast-growing organisation is transforming mission-critical combat planning and operational decision-making by building next-generation AI software tools for Western forces. Founded in 2023, the company has already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of … ex-Palantir and ex-OpenAI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging NLP, GenAI, Computer Vision, and Reinforcement Learning technologies. Position location (hybrid) : London (Shoreditch) or Paris (Le Marais) We are seeking Machine Learning Engineers who are passionate about using AI technology … latest research Requirements: MSc in Machine Learning, Computer Science, or a related field 5+ years of experience in machine learning, with an expertise in modelling, prototyping, and evaluation Strong software engineering skills with a focus velocity Excellent communication skills and the ability to flourish in a team Located in London/Paris and open to working in office More ❯

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media … enterprise architecture. Technical Skillset Requirements Core AI & Frameworks: Agentic Frameworks: Expert-level knowledge of agentic frameworks such as LangChain, LangGraph, Google Agent Development Kit (ADK) LLM Expertise: Advanced Prompt Engineering and hands-on experience with model fine-tuning techniques including PEFT and QLoRA. Proven experience with models like Gemini, and Llama 3. RAG & Vector Databases: Deep expertise in RAG … architecture and evaluation metrics. Proven experience with Vector Databases such as Milvus, Pinecone, or Chroma. Software & Cloud Engineering: Programming & APIs: Expert-level Python and demonstrable experience building production services with FastAPI. Cloud Platform: Mastery of GCP, particularly Vertex AI, Google Kubernetes Engine (GKE), and Cloud Functions. Databases: Strong command of relational databases like PostgreSQL and familiarity with NoSQL More ❯

Contract Principal Consultant Engineer (Cloud & Engineering) Hybrid (3 days onsite per week, West London) Rate: £575 to £625 per day (Outside IR35) Contract Length: 3 months with option to extend Are you an accomplished customer facing Solution Architect or Principal Consultant with a track record of leading complex, cloud-first transformations ? Do you thrive at the intersection of technical … strategy, architectural design, and customer success ? Our client, a fast-scaling cloud consultancy, partners with leading organisations to modernise their technology landscape through DevOps, platform engineering, automation, and software transformation . Following continued growth, they’re expanding their senior technical leadership team to shape and deliver large-scale customer engagements. As a Solution Architect/Principal Consultant , you … will: Define end-to-end technical architectures that solve complex business challenges. Partner directly with C-level and engineering stakeholders to shape technical strategy and delivery direction. Lead multi-disciplinary teams through architecture, design, and implementation , ensuring scalability, security, and performance. Influence technology decisions across modern programming, infrastructure, and automation ecosystems. Act as a trusted advisor: translating business objectives More ❯

Contract Principal Consultant Engineer (Cloud & Engineering) Hybrid (3 days onsite per week, West London) Rate: £575 to £625 per day (Outside IR35) Contract Length: 3 months with option to extend Are you an accomplished customer facing Solution Architect or Principal Consultant with a track record of leading complex, cloud-first transformations ? Do you thrive at the intersection of technical … strategy, architectural design, and customer success ? Our client, a fast-scaling cloud consultancy, partners with leading organisations to modernise their technology landscape through DevOps, platform engineering, automation, and software transformation . Following continued growth, they’re expanding their senior technical leadership team to shape and deliver large-scale customer engagements. As a Solution Architect/Principal Consultant , you … will: Define end-to-end technical architectures that solve complex business challenges. Partner directly with C-level and engineering stakeholders to shape technical strategy and delivery direction. Lead multi-disciplinary teams through architecture, design, and implementation , ensuring scalability, security, and performance. Influence technology decisions across modern programming, infrastructure, and automation ecosystems. Act as a trusted advisor: translating business objectives More ❯

Job Title: Senior Software Engineer Reporting to: Lead Engineer Role Purpose: As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally lead innovation or software … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯

Safe 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 experience and with some experience of TypeScript and React frontend development . If you also have a knack for … this role, you'll be a key 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. All positions at Safe Intelligence are 3/… days a week in the in our London office. We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to More ❯