776 to 800 of 4,030 Software Engineering Jobs in London

Lead AI Labs Software Engineer Python Developer Finance London

Hiring Organisation
Joseph Harry Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Lead AI Labs Software Engineer (Programmer Software Engineer Developer Python Amazon Web Services AWS Strands Agents AI LangChain LangGraph CrewAI Google AutoGen Pydantic AI PydanticAI Bedrock AgentCore ADK Azure GCP Cloud Asset Manager Buy Side Investment Management Fund Hedge Fund Finance Financial Services Banking Front Office Trading Asset … Manager) required by our client in finance in London. You MUST have the following: Advanced experience as a Python Software Engineer/Programmer/Developer Leadership experience for the delivery of projects from beginning to end- inception to production Excellent interpersonal skills Advanced design and architecture ability Creating Agentic ...

Senior Software Engineer, Real-Time FX Trading Platform

Location
Greater London, England, United Kingdom
United States Digital Space LLC is looking for a Senior Software Engineer to join the FX Routing and Aggregation team. In this role, you will be responsible for building and maintaining essential FX trading services that support clients globally. You will utilize a modern technology stack including Java ...

Software Engineer - Product Team

Location
Greater London, England, United Kingdom
ship small changes frequently because that's how you build something people can depend on. The role We're looking for a Software Engineer to join our team. Someone who's comfortable across the full stack and has a genuine hunger for innovations in everyday work. … faster. We use them, we own them, they don’t own us. What we’re looking for You have: Strong experience building and operating software in production, particularly on AWS A solid grasp of infrastructure‐as‐code, CI/CD, and what it takes to keep systems reliable ...

Senior Software Engineer — Scale AI Platform with Autonomy

Location
Greater London, England, United Kingdom
Encord in London seeks an experienced engineer to push our platform to the next level of performance and reliability. You will join a small, autonomous group, building foundational systems across the stack and owning projects ...

Software Engineer - Connectors

Location
Greater London, England, United Kingdom
warehouse products in the cloud and on-premise, while also helping improve the core database’s data ingestion capabilities with new features. As a software engineer in the Connectors team, you’ll: Be part of designing and architecting connectors for the Neo4j database Build and maintain new and existing … connectors or integrations that require user interaction What you'll bring to this role: You have 5+ years of experience developing production-level software You have experience designing multi-threaded systems and algorithms You have hands‐on experience with backend programming languages, such as Kotlin, Java ...

Senior Software Engineer - Backend

Location
Greater London, England, United Kingdom
lot. You have personally developed and maintained multiple systems from scratch, and you know what trade-offs are involved in building reliable, performant software at speed You want your work to have a tangible outcome for people. You're not satisfied with building products that … light of day You are a builder. You enjoy all aspects of building not only software but a complete product, and are comfortable moving across the stack when necessary You enjoy problem-solving and thinking from first principles, reach for the simplest solution that works, and know when boring ...

Software Engineer — Junior / Mid

Location
Greater London, England, United Kingdom
role You'll build the backend systems Letly runs on — the software behind every viewing, tenancy, certificate, rent payment and repair. These are systems where correctness, reliability and scale are non-negotiable : real people's money, homes and legal exposure are on the line. This is a junior … Native operating company built for the home. We believe the home will be autonomously run by AI and we're building the software that will run all rental properties end-to-end, starting with London (the world's 2nd largest rental city). The backend at Letly is technically ...

Senior Software Engineer

Location
City Of London, England, United Kingdom
Impact and Responsibilities We are seeking a Senior Software Engineer who thrives on untangling complex systems and modernising core infrastructure without breaking production. This is an exciting opportunity to modernise core C#/SQL systems! Extract legacy business logic, build clean services, and verify changes in shadow mode with ...

Java Software Engineer

Location
Greater London, England, United Kingdom
Job Type: Permanent (Hybrid – 2 Days Office and 3 Days work from Home) Location: London, United Kingdom Number of hours: 40 hours per week – full time Ready to utilize your experience and expertise in Java ...

Software Engineer

Location
Greater London, England, United Kingdom
* Design, develop, and maintain scalable and reliable backend systems, leveraging a range of technologies (including but not limited to those in Azure) adhering to quality standards, DevOps principles, and agile methodologies.* Designing technical solutions to ...

Fullstack Engineer

Location
Greater London, England, United Kingdom
Senior Full Stack Software Engineer (TypeScript, React, Next.js, AI, AWS) | Up to £95,000 + Equity | London Hybrid I’m partnered with a high-growth deep-tech scale-up spun out of Imperial College London that’s helping accelerate the future of electrification. Backed by leading investors, they … built a battery software platform already used by global automotive, aviation, and industrial customers, with a Series A on the horizon and ambitious growth plans. They’re now looking for a Senior Full Stack Software Engineer to take ownership of their production SaaS platform, build the next generation ...

Principal Engineer (LON)

Location
Greater London, England, United Kingdom
working in the office 6 days per month, and the rest remotely. This is a challenging role that will see you design and engineer software with the customer or user experience as the primary objective. You’ll actively contribute to our architecture, design and engineering centre of excellence … collaborating to improve the bank’s overall software engineering capability. You’ll gain valuable stakeholder exposure as you build and leverage relationships, as well as the opportunity to hone your technical talents What you'll do Create great customer outcomes via engineering and innovative solutions to existing ...

Global AI/ML Engineer Manager for AI-powered products

Location
Greater London, England, United Kingdom
capture opportunities through strategy, technology, design, and digital ventures. Задачи: Build, coach, and mentor engineers; Contribute directly to code and architecture while developing engineering talent and setting best practices; Foster a culture of learning, experimentation, and curiosity; Champion engineering excellence, clean architecture, and maintainable code across squads; Lead … stable APIs and services integrating with LLMs and AWS; Promote DevOps practices, CI/CD pipelines, and automated quality assurance; Use AI and agentic engineering tools for rapid development while maintaining code quality; Drive adoption and experimentation with LLMs in collaboration with product and research teams; Improve team efficiency ...

Salesforce Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
Troubleshoot and resolve technical issues across environments. - Participate in code reviews, technical design discussions and continuous improvement initiatives. - Contribute to documentation, solution design and engineering best practices. - Work within Agile delivery teams to deliver high-quality solutions. About You - Degree educated in Computer Science, Software Engineering or a related discipline. - Around 2+ years' experience in software engineering, application development or Salesforce development. - Experience with at least one modern programming language such as Java, C#, JavaScript, TypeScript, Python or Apex. - Understanding of software engineering fundamentals including APIs, data modelling, testing, version control ...

Senior Machine Learning Engineer (Python / C++)

Location
Greater London, England, United Kingdom
Longshot Systems we build advanced platforms for sports betting analytics and trading. We're hiring Machine Learning Engineers across our core ML engineering and horse racing teams. You'd be designing, building and productionising ML pipelines, tooling, visualisation, frameworks and data engineering workflows to support strategy research, analysis … quantitative research teams to turn prototype trading models into production-ready systems. You'd also help shape the high-level architecture of our strategy software so it scales effectively and keeps trading latency low. We operate a hybrid Python/C++ engineering stack. A large portion ...

Senior Developer

Location
City Of London, England, United Kingdom
build rather than maintaining someone else's. You'll work in a mixed team of engineers from several suppliers, alongside a dedicated AI engineering capability. The platform combines Python/FastAPI services, React and TypeScript interfaces, Camunda workflow orchestration, modular services, data persistence, and integration with existing Defence tasking … processes. Despite the AI-enabled focus of the platform, this is primarily a software engineering role. What you'll need Significant experience delivering software in MOD, Defence Intelligence, National Security or comparable secure environments Proven experience leading agile development teams Strong engineering background across Python, FastAPI ...

Full Stack Mobile App Engineer

Hiring Organisation
Bilge Adam Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
important for this role, while knowledge and experience with Flutter is desirable . We are also seeking engineers with strong problem-solving skills, sound engineering judgement and the ability to learn quickly. We embrace AI-assisted software development and expect engineers to use these tools responsibly while maintaining … production support. Design, build and support end-to-end mobile features spanning the mobile client, Java backend services and data integrations. Deliver high-quality software that balances customer value, engineering quality and operational stability. Collaborate effectively with engineers, testers, designers and business stakeholders. Use modern engineering practices ...

Technical Delivery Manager - DV Cleared

Location
Greater London, England, United Kingdom
will be pivotal in driving the delivery of mission-critical systems built on a cutting-edge technical stack. Working closely with cross-functional engineering teams, product managers, and key stakeholders, you will ensure complex, high-stakes software solutions are delivered predictably, securely, and at pace. Key Responsibilities Technical … Delivery & Agile Leadership: Lead agile delivery across multiple engineering workstreams, driving sprint planning, daily stand-ups, backlog refinement, and retrospectives. Architecture & Engineering Alignment: Partner with senior developers and architects to translate complex requirements into actionable technical roadmaps and deliverable epics. Stakeholder Management: Act as the primary bridge between ...

Core Platform Developer

Location
City Of London, England, United Kingdom
Description: Role Overview We are seeking a Core Platform Developer to help design and build shared engineering foundations used across the firm. This role is focused on backend and platform capabilities that improve how internal teams build, integrate, deploy, and operate software. The ideal candidate is a strong software … stack, from service frameworks and API enablement to observability, governance, and developer workflows. This is a high-ownership role within a global, fast-moving engineering environment. Key Responsibilities Design and build shared backend services, frameworks, and developer tooling that support internal application and service development. Develop common platform capabilities ...

Senior Full Stack Developer - C#/Azure /Kafka

Location
Greater London, England, United Kingdom
Senior Full Stack Developer - C#/Azure/Kafka Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per week in office/client site) Contract: 6-month rolling contract Rate: £600-650 per day, Outside IR35 Start: ASAP About Appvia Appvia … specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, cloud-native architecture, event-driven systems, and improving delivery outcomes through ...

Python Developer - Problem Solver

Location
Church End, North West London, United Kingdom
Python Developer/Backend Software Engineer Cambridge to £65k Are you a technologist Python Developer who enjoys problem solving and working on complex systems? You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe … week where you can enjoy a great team atmosphere with free lunches and problem solving sessions. About you: You have strong Python, backend software engineering experience You have advanced problem solving and critical thinking skills You enjoy learning and picking up new technologies You have experience with ...

ai engineer for agentic applications

Location
Greater London, England, United Kingdom
/ML stack; Debug and resolve issues across APIs, environments, and integrations; Act as the primary technical partner between Data Science and Engineering, DevOps, and Infrastructure teams; Support colleagues whose systems integrate with AI/ML and agentic components; Resolve technical ambiguity to reduce delivery friction and rework; Establish … evolve engineering standards for productionising AI/ML, including testing, observability, versioning, and release management; Mentor and guide data scientists and engineers through code reviews and hands-on technical support; Champion disciplined engineering, continuous improvement, and operational excellence within Data Science. Требования Degree in Computer Science, Artificial Intelligence ...

Senior Developer (LNG)

Location
Greater London, England, United Kingdom
technology landscape while supporting the development and growth of fellow engineers. WHAT WILL YOU DO Design, develop, and deliver high-quality, scalable, and maintainable software solutions that support trading, risk, and operational processes across the business. Collaborate with Technical Leads, Architects, QA, Functional Leads, and business stakeholders to ensure … delivery priorities are aligned and solutions meet business and technical objectives. Provide technical leadership across a portfolio of applications, ensuring adherence to architectural principles, engineering standards, and best practices throughout the software development lifecycle. Drive continuous improvement by identifying and addressing technical debt, contributing to technology roadmaps ...

Senior Linux DevOps Engineer

Hiring Organisation
RedTech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Linux DevOps Engineer A fantastic opportunity for a Senior Linux DevOps Engineer to join a world-leading technology company developing cutting-edge AI-powered software solutions. You will join a highly talented R&D function working on the production infrastructure and systems that underpin sophisticated software products used … infrastructure, networking and performance issues, supporting incident response and root cause analysis Develop automation, Infrastructure as Code and CI/CD processes to improve engineering efficiency and reliability Implement and enhance monitoring, logging and observability across production systems Manage and optimise Linux workloads deployed within cloud environments Collaborate with ...

2026/Q2 - Senior Quantitative Engineer

Location
Greater London, England, United Kingdom
Senior Quantitative Engineer to join Allocation Strategy's technology team. This is a hands‐on, early‐stage role at the intersection of software engineering, quantitative modelling, applied AI, and investment analytics . You will work closely with the company founders, including the Heads of Technology and Research … data pipelines, quantitative research workflows, and production modelling systems . You will help translate advanced macro‐finance and asset‐allocation research into reliable, scalable software used by institutional clients. As an early member of a small, senior team, you will work end‐to‐end across research, prototyping, data engineering ...