876 to 900 of 1,868 Python Jobs in the City of London

with both internal engineers and client teams to ensure what gets built actually lands well What they’re looking for: • Hands-on LLM experience beyond prototyping/notebooks • Strong Python and experience with PyTorch/Hugging Face/similar tooling • Experience deploying models into production (not just training them) • Familiarity with vector stores and RAG patterns • Comfortable operating in a More ❯

object detection/tracking (e.g., publications in CVPR, ICCV, or ECCV). Deep experience with modern vision architectures such as YOLO , Vision Transformers , and EVA . Strong command of Python and core ML libraries (NumPy, pandas, scikit-learn, TensorFlow, PyTorch). Familiarity with MLOps practices and evaluation metrics (Accuracy, Recall, F1, IoU, etc.). Excellent communication and problem-solving skills More ❯

with both internal engineers and client teams to ensure what gets built actually lands well What they’re looking for: • Hands-on LLM experience beyond prototyping/notebooks • Strong Python and experience with PyTorch/Hugging Face/similar tooling • Experience deploying models into production (not just training them) • Familiarity with vector stores and RAG patterns • Comfortable operating in a More ❯

and file-based data extracts. Data modelling to transform operational data into analytic/reporting structures such as Kimball-style multi-dimensional models. 💡Strong SQL, Sigma, PowerBI, Matilion, DBT, Python Essential Skills for the Lead Data Analyst: Proven Data Analyst experience of at least 5 years, within a Financial Services environment, with particular emphasis on Risk or cross asset derivatives More ❯

Required MSc or PhD in Machine Learning, Computational Biology, Bioinformatics, or related discipline (or equivalent industry experience) Demonstrated ability to apply ML methods to biological or genomic data Strong Python skills with experience in PyTorch, TensorFlow, or scikit-learn Understanding of bioinformatics workflows (e.g. genome assembly, QC, annotation) Experience working with large or complex genomic datasets Familiarity with model evaluation More ❯

contributors. Requirements Strong full-stack engineering background (frontend + backend). Experience building SaaS dashboards and/or APIs at scale. Proficiency with modern stacks (e.g., React, Next.js, Node.js, Python/FastAPI, Postgres). Knowledge of cloud infrastructure (AWS, GCP, or European alternatives). Familiarity with KYC/AML, payments, or compliance-heavy workflows a plus. Ability to thrive in More ❯

contributors. Requirements Strong full-stack engineering background (frontend + backend). Experience building SaaS dashboards and/or APIs at scale. Proficiency with modern stacks (e.g., React, Next.js, Node.js, Python/FastAPI, Postgres). Knowledge of cloud infrastructure (AWS, GCP, or European alternatives). Familiarity with KYC/AML, payments, or compliance-heavy workflows a plus. Ability to thrive in More ❯

on solutions, and communicate progress to a wide variety of leads and internal stakeholders. Required experience 5+ years of experience in systems engineering or related disciplines Mandatory proficiency with Python, with experience implementing substantial tools or services using it highly preferred. Proficiency with the administration, integration, and API capabilities of SaaS platforms such as Okta, Google Workspace, Atlassian products, and More ❯

evolve rapidly Technical Skills LLM & Agent Development : Hands-on experience building applications with large language models, implementing advanced prompting techniques, RAG systems, and agentic workflows Backend Engineering : Proficient in Python and backend frameworks (e.g. FastAPI, Django, Flask); understanding of distributed systems and scalable architectures AI/ML Frameworks : Experience with PyTorch, Hugging Face Transformers, LangChain, or similar frameworks for building More ❯

evolve rapidly Technical Skills LLM & Agent Development : Hands-on experience building applications with large language models, implementing advanced prompting techniques, RAG systems, and agentic workflows Backend Engineering : Proficient in Python and backend frameworks (e.g. FastAPI, Django, Flask); understanding of distributed systems and scalable architectures AI/ML Frameworks : Experience with PyTorch, Hugging Face Transformers, LangChain, or similar frameworks for building More ❯

products. Expertise in data engineering and cloud engineering, including data ingestion, transformation, and storage. Significant hands-on experience with AWS and its data services. Expert-level skills in SQL, Python, DBT, Airflow and Redshift. Confidence in coding, scripting, configuring, versioning, debugging, testing, and deploying. Ability to guide and mentor others in technical best practices. A product mindset, focusing on user More ❯

products. Expertise in data engineering and cloud engineering, including data ingestion, transformation, and storage. Significant hands-on experience with AWS and its data services. Expert-level skills in SQL, Python, DBT, Airflow and Redshift. Confidence in coding, scripting, configuring, versioning, debugging, testing, and deploying. Ability to guide and mentor others in technical best practices. A product mindset, focusing on user More ❯

Eva. Experience talking to stakeholders in these models to understand their requirements and guiding them through what is and is not possible or desirable in a model. Familiarity with Python and the packages widely used in data science and machine learning. Developers should be familiar with libraries like NumPy, pandas, scikit-learn, TensorFlow, and PyTorch. Familiarity with best practice in More ❯

Eva. Experience talking to stakeholders in these models to understand their requirements and guiding them through what is and is not possible or desirable in a model. Familiarity with Python and the packages widely used in data science and machine learning. Developers should be familiar with libraries like NumPy, pandas, scikit-learn, TensorFlow, and PyTorch. Familiarity with best practice in More ❯

Principal Python Engineer Salary: Up to £130k + bonus Location: London (3x per week) I’m working with a global financial organisation that’s investing heavily in its data and cloud technology platform, and they’re looking for a Python Engineer to join their growing Investment Technology team. You’ll be: Building clean, scalable Python back-end systems Designing cloud … data, investment, and engineering teams Shaping best practices across CI/CD, DevOps, and agile development What we’re looking for: 5+ years’ experience in software engineering (3+ in Python) Needs to have experience within financial services, fintech, or investment tech! Strong AWS and data engineering experience Solid understanding of APIs, SQL/NoSQL, and modern software design A problem … solver who enjoys working closely with the business If you’re a Python engineer who loves solving complex data challenges in a collaborative, cloud-first environment — drop me a message: daniel.wexler@sourcegroupinternational.com THIS ROLE DOES NOT PROVIDE SPONSORSHIP More ❯

Principal Python Engineer Salary: Up to £130k + bonus Location: London (3x per week) I’m working with a global financial organisation that’s investing heavily in its data and cloud technology platform, and they’re looking for a Python Engineer to join their growing Investment Technology team. You’ll be: Building clean, scalable Python back-end systems Designing cloud … data, investment, and engineering teams Shaping best practices across CI/CD, DevOps, and agile development What we’re looking for: 5+ years’ experience in software engineering (3+ in Python) Needs to have experience within financial services, fintech, or investment tech! Strong AWS and data engineering experience Solid understanding of APIs, SQL/NoSQL, and modern software design A problem … solver who enjoys working closely with the business If you’re a Python engineer who loves solving complex data challenges in a collaborative, cloud-first environment — drop me a message: daniel.wexler@sourcegroupinternational.com THIS ROLE DOES NOT PROVIDE SPONSORSHIP More ❯

£70-90k + Benefits 2 days on site in North London 3 days remote I am recruiting for a talented and driven Senior Backend Engineer to join a dynamic team, focused on the creation and deployment of innovative software More ❯

Python Software Engineer needed to play a pivotal role in evolving our client's core platform — developing APIs, data workflows, and system integrations that power bespoke digital tools for major clients. You’ll work hands-on with Python, FastAPI, SQL, and orchestration tools, taking automation-generated code and making it production-ready. You’ll also be a champion of AI … assisted development, helping to embed LLM-based workflows into day-to-day engineering processes. Key Responsibilities Build and enhance backend features and integrations (Python, FastAPI, gRPC, SQL). Extend auto-generated pipelines and front-end automation outputs. Develop connectors for APIs, files, and external systems. Integrate LLM-based capabilities with strong testing and monitoring practices. Lead best practices for AI … assisted coding tools Collaborate closely with cross-functional teams including Data and Platforms About You Strong experience with Python backend and API development Skilled in SQL, data modelling, and workflow orchestration tools Daily user of AI-powered coding assistants, with a focus on efficiency and code quality Proven experience building and managing integrations (APIs, SFTP, SharePoint, webhooks) Familiar with CI More ❯

Python Software Engineer needed to play a pivotal role in evolving our client's core platform — developing APIs, data workflows, and system integrations that power bespoke digital tools for major clients. You’ll work hands-on with Python, FastAPI, SQL, and orchestration tools, taking automation-generated code and making it production-ready. You’ll also be a champion of AI … assisted development, helping to embed LLM-based workflows into day-to-day engineering processes. Key Responsibilities Build and enhance backend features and integrations (Python, FastAPI, gRPC, SQL). Extend auto-generated pipelines and front-end automation outputs. Develop connectors for APIs, files, and external systems. Integrate LLM-based capabilities with strong testing and monitoring practices. Lead best practices for AI … assisted coding tools Collaborate closely with cross-functional teams including Data and Platforms About You Strong experience with Python backend and API development Skilled in SQL, data modelling, and workflow orchestration tools Daily user of AI-powered coding assistants, with a focus on efficiency and code quality Proven experience building and managing integrations (APIs, SFTP, SharePoint, webhooks) Familiar with CI More ❯

in .NET and AWS to join our client Key Responsibilities Design, develop, and maintain scalable, high-performance software solutions. Develop and manage Infrastructure as Code (IaC) using AWS CDK (Python) to automate deployment and cloud resource management. Drive code quality through automated testing , unit testing, and adherence to clean code principles. Manage and optimize CI/CD pipelines to improve … Experience as a Senior .NET Engineer , ideally within financial services or a similarly complex domain. Strong hands-on experience with AWS and Infrastructure as Code , particularly AWS CDK in Python . Familiarity with Entity Framework (or similar ORM frameworks) and contract-first system design . Solid understanding of automated testing frameworks and unit testing principles. Agile methodologies and a collaborative More ❯

in .NET and AWS to join our client Key Responsibilities Design, develop, and maintain scalable, high-performance software solutions. Develop and manage Infrastructure as Code (IaC) using AWS CDK (Python) to automate deployment and cloud resource management. Drive code quality through automated testing , unit testing, and adherence to clean code principles. Manage and optimize CI/CD pipelines to improve … Experience as a Senior .NET Engineer , ideally within financial services or a similarly complex domain. Strong hands-on experience with AWS and Infrastructure as Code , particularly AWS CDK in Python . Familiarity with Entity Framework (or similar ORM frameworks) and contract-first system design . Solid understanding of automated testing frameworks and unit testing principles. Agile methodologies and a collaborative More ❯

areas. Experience building and optimizing software delivery pipelines using modern DevOps toolchains. Proven ability to influence technical and business stakeholders across enterprise accounts. Prior software development or scripting experience (Python, Java, Go, etc.) is a significant advantage. Excellent presentation, communication, and stakeholder management skills . Preferred Qualifications Experience in enterprise-scale software deployments or cloud-native transformation projects . Familiarity … Engineer, Presales Engineer, Cloud Architect, CI/CD, Kubernetes, Docker, Jenkins, GitLab, AWS, Azure, GCP, SAST, SCA, SBOM, Container Security, Application Security, Cloud Security, Infrastructure as Code, Terraform, Helm, Python, Enterprise Solutions, Technical Presales, Software Delivery, Digital Transformation, DevOps Automation. More ❯

areas. Experience building and optimizing software delivery pipelines using modern DevOps toolchains. Proven ability to influence technical and business stakeholders across enterprise accounts. Prior software development or scripting experience (Python, Java, Go, etc.) is a significant advantage. Excellent presentation, communication, and stakeholder management skills . Preferred Qualifications Experience in enterprise-scale software deployments or cloud-native transformation projects . Familiarity … Engineer, Presales Engineer, Cloud Architect, CI/CD, Kubernetes, Docker, Jenkins, GitLab, AWS, Azure, GCP, SAST, SCA, SBOM, Container Security, Application Security, Cloud Security, Infrastructure as Code, Terraform, Helm, Python, Enterprise Solutions, Technical Presales, Software Delivery, Digital Transformation, DevOps Automation. More ❯

design, production-grade analytics platforms for sensitive environments. Collaborate across engineering, security, and product teams to deliver at pace and scale. The toolkit you’ll use 🌳 Data Science & Engineering: Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow), SQL, NoSQL, Spark, big data ecosystems Visualisation & APIs: REST/JSON, Postman, Flask/FastAPI, Power BI/Tableau, D3.js DevOps & Cloud: CI … pipelines Collaboration & Control: Git-based workflows, Jira, Confluence, automated testing suites Must-have experience 🌳 Proven delivery of data science models or data engineering pipelines from concept to production. Strong Python skills plus SQL and data visualisation experience. Hands-on with cloud platforms (AWS preferred) and containerisation (Docker/Kubernetes). Experience working with Defence, Government, or National Security data environments. More ❯

design, production-grade analytics platforms for sensitive environments. Collaborate across engineering, security, and product teams to deliver at pace and scale. The toolkit you’ll use 🌳 Data Science & Engineering: Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow), SQL, NoSQL, Spark, big data ecosystems Visualisation & APIs: REST/JSON, Postman, Flask/FastAPI, Power BI/Tableau, D3.js DevOps & Cloud: CI … pipelines Collaboration & Control: Git-based workflows, Jira, Confluence, automated testing suites Must-have experience 🌳 Proven delivery of data science models or data engineering pipelines from concept to production. Strong Python skills plus SQL and data visualisation experience. Hands-on with cloud platforms (AWS preferred) and containerisation (Docker/Kubernetes). Experience working with Defence, Government, or National Security data environments. More ❯