326 to 350 of 750 Software Engineering Jobs in the City of London

Information Technology, or related field. Proven experience as an Integrations Developer with expertise in integration tools such as Boomi, Worcato, or Mulesoft. Strong background in database administration (DBA) or software engineering. Excellent problem-solving skills and ability to work independently or in a team environment. Effective communication skills with the ability to translate technical concepts to non-technical stakeholders. More ❯

Information Technology, or related field. Proven experience as an Integrations Developer with expertise in integration tools such as Boomi, Worcato, or Mulesoft. Strong background in database administration (DBA) or software engineering. Excellent problem-solving skills and ability to work independently or in a team environment. Effective communication skills with the ability to translate technical concepts to non-technical stakeholders. More ❯

on network segmentation, access control, and intrusion prevention Build, mentor, and manage a high-performing infrastructure and DevOps team, fostering a culture of excellence, automation, and reliability Partner with software engineers, quantitative researchers, traders, and risk teams to deliver stable, scalable, and secure infrastructure solutions Drive automation initiatives using CloudFormation and Ansible to enhance resilience, reduce operational overhead, and More ❯

on network segmentation, access control, and intrusion prevention Build, mentor, and manage a high-performing infrastructure and DevOps team, fostering a culture of excellence, automation, and reliability Partner with software engineers, quantitative researchers, traders, and risk teams to deliver stable, scalable, and secure infrastructure solutions Drive automation initiatives using CloudFormation and Ansible to enhance resilience, reduce operational overhead, and More ❯

with front-end (React, Unity, WebGL, Android, iOS, React), back-end (Kotlin, REST, AWS, PHP8/Symfony4, AWS/Azure), AI, ML, web Past experience as a hands-on software engineer, ideally on Back End systems Ability to take concepts from vision to technical solutions working with business, technical, management, and subject matter experts to deliver products or platform More ❯

with front-end (React, Unity, WebGL, Android, iOS, React), back-end (Kotlin, REST, AWS, PHP8/Symfony4, AWS/Azure), AI, ML, web Past experience as a hands-on software engineer, ideally on Back End systems Ability to take concepts from vision to technical solutions working with business, technical, management, and subject matter experts to deliver products or platform More ❯

scientists to identify and scope high-impact use cases Implement and orchestrate multi-agent systems using frameworks such as LangGraph or similar tools Develop pipelines and interfaces for prompt engineering, context injection, and fine-tuned workflows Build internal demos and proof-of-concepts for investment research, market commentary, and portfolio analysis The knowledge, experience and qualifications you need Strong … proficiency in Python, particularly for AI/ML, data engineering, or automation use cases Experience working with or building applications around large language models (open-source or commercial) Familiarity with LLM agents, orchestration frameworks (e.g. LangGraph, LangChain), and context management Experience with cloud platforms (AWS preferred) and associated services for AI workloads A background in software engineering More ❯

scientists to identify and scope high-impact use cases Implement and orchestrate multi-agent systems using frameworks such as LangGraph or similar tools Develop pipelines and interfaces for prompt engineering, context injection, and fine-tuned workflows Build internal demos and proof-of-concepts for investment research, market commentary, and portfolio analysis The knowledge, experience and qualifications you need Strong … proficiency in Python, particularly for AI/ML, data engineering, or automation use cases Experience working with or building applications around large language models (open-source or commercial) Familiarity with LLM agents, orchestration frameworks (e.g. LangGraph, LangChain), and context management Experience with cloud platforms (AWS preferred) and associated services for AI workloads A background in software engineering More ❯

designing, developing, and maintaining scalable data pipelines and models that power decision-making across multiple business areas. This is a hands-on technical role where you’ll bridge data engineering and analytics, working closely with teams in product, finance, and technology to translate complex business questions into accessible, trustworthy datasets and visualisations. What You’ll Do Build and optimise … team members, helping to elevate the wider analytics capability Identify opportunities to streamline workflows and improve data accuracy and accessibility About You 4+ years’ experience in data or analytics engineering, ideally within fintech, SaaS, or digital platforms Deep proficiency in SQL and hands-on experience with dbt Experience working with modern data warehouses (Snowflake, BigQuery, or Redshift) Familiarity with … software engineering principles (Git, CI/CD, testing frameworks) Strong understanding of data visualisation and BI tools Confident communicator able to translate technical detail into clear business insight More ❯

designing, developing, and maintaining scalable data pipelines and models that power decision-making across multiple business areas. This is a hands-on technical role where you’ll bridge data engineering and analytics, working closely with teams in product, finance, and technology to translate complex business questions into accessible, trustworthy datasets and visualisations. What You’ll Do Build and optimise … team members, helping to elevate the wider analytics capability Identify opportunities to streamline workflows and improve data accuracy and accessibility About You 4+ years’ experience in data or analytics engineering, ideally within fintech, SaaS, or digital platforms Deep proficiency in SQL and hands-on experience with dbt Experience working with modern data warehouses (Snowflake, BigQuery, or Redshift) Familiarity with … software engineering principles (Git, CI/CD, testing frameworks) Strong understanding of data visualisation and BI tools Confident communicator able to translate technical detail into clear business insight More ❯

JSON, DSL ). Engage with member firms and vendors to capture requirements, extend models, and test new functionality. Document code, manage sprints, and contribute to roadmap planning. Requirements Strong software-engineering background with hands-on Java/Python development experience. Knowledge of derivatives trade lifecycle , collateral management, and/or regulatory reporting. Skilled in data modelling and working More ❯

JSON, DSL ). Engage with member firms and vendors to capture requirements, extend models, and test new functionality. Document code, manage sprints, and contribute to roadmap planning. Requirements Strong software-engineering background with hands-on Java/Python development experience. Knowledge of derivatives trade lifecycle , collateral management, and/or regulatory reporting. Skilled in data modelling and working More ❯

Full-Stack Software Engineers SC/DV Cleared - (Military/Veteran-Friendly) — Multiple Openings 🌳 Location: London (Remote & Hybrid options) Employment: Permanent Clearance: Current SC or DV required Make mission-critical software that actually gets used. Areti Group is partnering with a defence-aligned client to hire multiple Full-Stack Software Engineers who can deliver secure, reliable web …/Express , SQL/PostgreSQL , Docker , CI/CD . Building and consuming RESTful APIs ; JSON schemas; integration testing. Comfortable in AWS and modern Infrastructure-as-Code approaches. Strong engineering fundamentals: code reviews, testing, observability, performance tuning . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or … hardware/peripherals (kiosks, scanners, IoT). Knowledge of secure networked environments , identity/access control, and accreditation workflows. Why this is a great move Mission & impact: Build dependable software for real users in mission-critical contexts. Modern stack: TypeScript/React/Node on AWS with IaC and automation-first delivery. Growth: Multiple openings from Junior to Principal More ❯

Full-Stack Software Engineers SC/DV Cleared - (Military/Veteran-Friendly) — Multiple Openings 🌳 Location: London (Remote & Hybrid options) Employment: Permanent Clearance: Current SC or DV required Make mission-critical software that actually gets used. Areti Group is partnering with a defence-aligned client to hire multiple Full-Stack Software Engineers who can deliver secure, reliable web …/Express , SQL/PostgreSQL , Docker , CI/CD . Building and consuming RESTful APIs ; JSON schemas; integration testing. Comfortable in AWS and modern Infrastructure-as-Code approaches. Strong engineering fundamentals: code reviews, testing, observability, performance tuning . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or … hardware/peripherals (kiosks, scanners, IoT). Knowledge of secure networked environments , identity/access control, and accreditation workflows. Why this is a great move Mission & impact: Build dependable software for real users in mission-critical contexts. Modern stack: TypeScript/React/Node on AWS with IaC and automation-first delivery. Growth: Multiple openings from Junior to Principal More ❯

Lead Engineers – 12 Month Contract (Outside IR35) – Immediate Start FRESH has partnered with one of the UK’s fastest-growing beauty scale-ups. Backed by significant funding, they dominate the UK market and have recently launched in the US. We More ❯

Lead Engineers – 12 Month Contract (Outside IR35) – Immediate Start FRESH has partnered with one of the UK’s fastest-growing beauty scale-ups. Backed by significant funding, they dominate the UK market and have recently launched in the US. We More ❯

About Medly AI We're the fastest-growing EdTech startup in London, on a mission to change education forever. We're living through a once-in-a-generation moment where AI-native companies are redefining entire industries - Cursor for code More ❯

About Medly AI We're the fastest-growing EdTech startup in London, on a mission to change education forever. We're living through a once-in-a-generation moment where AI-native companies are redefining entire industries - Cursor for code More ❯

is placing data science at the heart of its strategy, investing heavily in both classic ML and next-generation AI capabilities. This is a company that blends modern product engineering with a fast-moving, high-ownership culture. Their environment encourages experimentation, cross-functional collaboration, and the freedom to shape what “great” looks like in machine learning at scale. The … of their real-time modelling infrastructure. This is a hybrid hands-on/leadership role, ideal for someone who thrives at the intersection of applied research, platform integration, and engineering-minded data science. What You’ll Be Doing Build and deploy a wide variety of models spanning classification, regression, propensity scoring, and LLM-based use cases Spearhead the entire … GenAI efforts. The team have multiple LLM projects running but would love a technical leader in this area Own the end-to-end lifecycle of ML projects, from feature engineering to deployment and monitoring Define best practices for model testing, automation, and continuous improvement within a high-performing team Act as a technical thought leader, partnering with stakeholders across More ❯

is placing data science at the heart of its strategy, investing heavily in both classic ML and next-generation AI capabilities. This is a company that blends modern product engineering with a fast-moving, high-ownership culture. Their environment encourages experimentation, cross-functional collaboration, and the freedom to shape what “great” looks like in machine learning at scale. The … of their real-time modelling infrastructure. This is a hybrid hands-on/leadership role, ideal for someone who thrives at the intersection of applied research, platform integration, and engineering-minded data science. What You’ll Be Doing Build and deploy a wide variety of models spanning classification, regression, propensity scoring, and LLM-based use cases Spearhead the entire … GenAI efforts. The team have multiple LLM projects running but would love a technical leader in this area Own the end-to-end lifecycle of ML projects, from feature engineering to deployment and monitoring Define best practices for model testing, automation, and continuous improvement within a high-performing team Act as a technical thought leader, partnering with stakeholders across More ❯

Software Engineer – Python & C++ | Fintech AI Startup (London, Hybrid) Role: Software Engineer (Python & C++) Location: London (Hybrid – 1–2 days/week in-office optional) Sector: Fintech | Simulation & AI ** Candidates must have full right to work in the UK, we are unable to offer sponsorship I'm currently hiring on behalf of an exciting early-stage fintech startup … and AI tools for global financial institutions. This is a great opportunity to work closely with a highly technical founding team, have real ownership over systems design, and shape engineering culture from the ground up. Role Highlights Refactor and productionise research/prototype code Develop performance-critical systems in Python and C++ Lead code reviews and mentor junior engineers … Drive system design, tooling, and architecture decisions Own the full software lifecycle: design, build, test, deploy Build robust testing and CI/CD pipelines Requirements: Strong experience in both Python and C++ in production environments A track record of delivering production-quality systems at speed Experience moving code from prototype to scalable production systems Strong testing, CI/CD More ❯

Red Badger have partnered with a leading AI Start up who are looking to boost their engineering team due to high speed growth. Tech Stack: ● 🐍 Backend: Python is our go-to for its versatility and suitability for both application logic and data processing, fostering collaboration. ● 🎨 Frontend: We value great UX; expect React and rigorous design implementation (using Figma for … hybrid role where you'll be spending 2/3 days a week onsite in London What you’ll bring: ● Significant professional experience (e.g., 5+ years) in full-stack software development. ● Strong proficiency in Python for backend development. ● Experience with modern frontend frameworks (e.g., React, Vue, Angular). ● Solid understanding of database technologies (e.g., PostgreSQL, MySQL) and data modeling. More ❯

Red Badger have partnered with a leading AI Start up who are looking to boost their engineering team due to high speed growth. Tech Stack: ● 🐍 Backend: Python is our go-to for its versatility and suitability for both application logic and data processing, fostering collaboration. ● 🎨 Frontend: We value great UX; expect React and rigorous design implementation (using Figma for … hybrid role where you'll be spending 2/3 days a week onsite in London What you’ll bring: ● Significant professional experience (e.g., 5+ years) in full-stack software development. ● Strong proficiency in Python for backend development. ● Experience with modern frontend frameworks (e.g., React, Vue, Angular). ● Solid understanding of database technologies (e.g., PostgreSQL, MySQL) and data modeling. More ❯

through trusted recommendations. We work with experienced founders, CTOs, and senior engineers who connect us with exceptional technical talent for high-growth companies. The Role We’re looking for Engineering Experts who match great people with great opportunities. It’s a fractional, flexible role, about 5 minutes a week , where you refer engineers, data scientists, or technical leads from … your network to startup roles. When someone you recommend gets hired, you earn a $5k–$10k success fee. Why join? Turn your engineering network into a new income stream Help top startups hire world-class technical talent Focus areas: software engineering, data, and AI roles We handle matching, outreach, vetting, and updates No fixed hours, no management … no pressure Who we want Seasoned technical professionals = founders, CTOs, or senior engineers, who’ve built, scaled, or invested in great engineering teams, and love connecting others with new opportunities. Apply We’ll review your background and network, and once accepted, you’ll start receiving referral opportunities and earning for the connections you already make. More ❯

collaborative team, staying close to the codebase and influence the technical roadmap in working on a nationwide product with millions of users. Job Requirements : Over 4 years experience in software engineering Experience with Scala and Javascript projects AWS is nice to have Strong communication skills Interview process: 1st stage interview, 2nd stage interview, Offer stage More ❯