326 to 350 of 408 Python Jobs in the City of London

Senior Software Engineer C++

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 3 days remote and 2 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions Limited does … your thinking, then my client could be the ideal place for you to develop your career. Benefits (not exhaustive list): Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) Competitive salary 25 days annual leave - not including bank holiday Private medical insurance Flexible working hours ...

Senior Linux / Unix Engineer - FTC - Investment Banking

Hiring Organisation
SRG
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Participate in occasional weekend project work and a light on-call rota Technical environment RHEL 7/8/9, Solaris 11 Ansible automation Python and/or Bash scripting Docker/Podman containers Grafana and monitoring tools Predominantly on-prem, with early AWS adoption underway Skills & experience required Strong … senior-level Linux/Unix administration experience Hands-on experience with Ansible and scripting (Python/Bash) Comfortable working in lean teams with high ownership Experience supporting production environments and BAU workloads Exposure to cloud platforms (AWS preferred) is beneficial but not essential Working pattern & benefits 12-month fixed term ...

Data Scientist - Global Investment Firm

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
ownership rather than narrow modelling work. Role summary You will work as a generalist Data Scientist, combining strong classical data science foundations with solid Python engineering and familiarity with modern ML/LLM tooling. The role is hands-on and delivery-focused, with opportunities to ship work into production … base + 10% bonus Location: Central London (Bond Street) Working model: 4 days per week in the office (Mon–Thu) Tech stack: Python, classical DS, cloud (GCP preferred; AWS/Azure acceptable), LLM/NLP tooling Visa sponsorship: Not available Interested? Please apply below. ...

Artificial Intelligence Engineer

Hiring Organisation
Intellect Group
Location
City of London, London, United Kingdom
development, data pipelines, and deployment workflows that power mission-critical platforms. 🔍 In this role, you’ll: 🤖 Build, train, and evaluate machine learning models using Python 📊 Work with large, complex datasets to support AI-driven products and insights 🧠 Assist with feature engineering, model experimentation, and performance optimisation ☁️ Contribute to data … related field 💼 0–2 years of experience in AI, machine learning, or software/data engineering (including internships, placements, or academic projects) 🐍 Strong Python skills for ML and data processing 🗄 Experience working with SQL and structured datasets ☁️ Familiarity with cloud platforms and modern data stacks 🧠 A solid understanding of machine ...

Software Engineer - Backend

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software built using Python, Django, Cloud Firestore, BigQuery, and Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous improvement. Collaborate with cross-functional … equivalent hands-on experience. 3+ years' experience in backend software development, including several years in a senior or principal-level engineering role. Expertise in Python (or a similar backend language), with proven experience designing distributed systems, APIs, and microservices at scale. Deep understanding of software architecture, cloud infrastructure (Google Cloud ...

Principal Backend Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software built using Python, Django, Cloud Firestore, BigQuery, and Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous improvement. Collaborate with cross-functional … equivalent hands-on experience. 7+ years' experience in backend software development, including several years in a senior or principal-level engineering role. Expertise in Python (or a similar backend language), with proven experience designing distributed systems, APIs, and microservices at scale. Deep understanding of software architecture, cloud infrastructure (Google Cloud ...

Observability Platform Engineer – Elite Quant Hedge Fund

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
systems, from observability design through to incident resolution and systemic improvement; lead high-severity incident management; and reduce toil with software engineering, primarily in Python but also with Golang, TypeScript, SQL and/or PowerShell. The role requires someone who can evidence outstanding problem-solving and the ability to solve … thinking, observability, incident leadership, and a bias for systemic platform fixes. Strong software engineering skills: high proficiency in at least one modern programming language (Python preferred). Modern open-source observability knowledge: Experience within the ecosystem (e.g. OpenTelemetry, LGTM stack, Prometheus, Grafana, Loki). Unsiloed cross-platform operator: Confidence taming ...

Data Engineering Lead

Hiring Organisation
Novatus Global
Location
City of London, London, United Kingdom
standards, and ensure high-quality execution across the team. You’ll join at a pivotal stage as we modernize our data infrastructure, migrating from Python scripts and MySQL to Databricks and Snowflake. Our systems power regulatory reporting for major financial institutions, requiring precision, traceability, and reliability. What … warehouse. Manage and mentor a team of Data Engineers in a player/coach capacity. Design, build, and optimize data pipelines using Databricks, Kafka, Python and PySpark. Evolve a configuration-driven platform enabling non-engineers to define regulatory logic. Ensure pipelines are auditable, lineage-aware, idempotent, and resilient in regulated ...

Remote Software Developer

Hiring Organisation
Turing
Location
City of London, London, United Kingdom
training, benchmarking, and advancing large language models, collaborating closely with researchers. This includes curating code examples, providing precise solutions, and making corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go; evaluating and refining AI-generated code for efficiency, scalability, and reliability; and working with cross-functional … solutions. What Does a Typical Day Look Like? Working on AI model training initiatives by curating code examples, building solutions, and correcting code in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. ...

Senior Fullstack Software Engineer

Hiring Organisation
Outsmart Insight
Location
City of London, London, United Kingdom
product and operational requirements and translate them into robust, production-ready solutions. What you’ll be doing Designing and maintaining backend services primarily in Python Developing and evolving well-structured RESTful APIs Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases Working across the stack where needed … improving mature systems Comfortable reading and navigating complex legacy code Strong in systems thinking (trade-offs, scalability, cost implications) Backend-heavy, with strong Python expertise Operationally mature – you’ve supported production systems, not just built features You are likely: Calm under pressure Direct but not ego-driven Curious and thoughtful ...

Robotics Software Engineer

Hiring Organisation
DCS Technology
Location
City of London, London, United Kingdom
Robotics Software Engineer – Flight Software Location: Oxfordshire or London (remote first, monthly office visit) Salary: up to £55,000 + benefits I’m supporting a fast-growing UK start-up that is building cutting-edge ...

C++ Developer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
C++ Developer (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Back-end) ***This is a hybrid role, 3 days remote and 2 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions Limited does … align with your thinking, then my client could be the ideal place for you to develop your career. Benefits (not exhaustive list): C++ Developer(Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Back-end) Competitive salary 25 days annual leave - not including bank holiday Private medical insurance Flexible working ...

Platform Engineer AWS Python - Fintech

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Platform Engineer (AWS Python) London/WFH to £100k Do you have expertise with AWS? You could be joining a growing and profitable scale-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression. ...

Salesforce Test Engineer

Hiring Organisation
McGregor Boyall
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
quality across integrated systems. Essential Skills & Experience Strong hands-on experience with Salesforce Data Cloud (Customer 360 Audiences/CDP). Solid Python skills, including Python test automation and Pandas for data manipulation. Proven experience with API automation (REST), Gherkin/BDD, Robot Framework, and Selenium. Practical experience with Google ...

Technical Lead

Hiring Organisation
Paradigm Tech
Location
City of London, London, United Kingdom
Technical Lead | Product Technical Lead | Tech Lead | Product Manager | AI/Data Science | Python | FastAPI | SaaS | Hybrid 2 days a week | Central London | £85,000 + 15% bonus I am currently working with a brilliant consultancy with deep expertise in their field of Data and Cyber Security solutions, predominantly with … utilise the product to its fullest. Key skills Strong software engineering skills, delivering end-to-end software products. Highly product orientated. Highly skilled in Python development, with knowledge of FastAPI framework. Good databases knowledge with schema design and SQL. Some front-end development preferably TypeScript & React is highly desirable. Experience ...

Senior Software Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Short Version. You must be a senior software engineer with experience in trading environments. You need to be a well-rounded engineer in Python, C#/.NET or other object-oriented languages. With an ability to deliver real-time cloud based solutions at the speed a trading desk needs. Want … systems Collaborate with a mixed London/Denmark engineering team in a highly business‐facing environment Tech Stack Languages: C#/.NET (strategic direction) Python (current tooling base) Java or other OO languages also considered Cloud: AWS (current environment) Frontend: Angular Svelte React experience also relevant Data/Messaging: Strong ...

Senior Data Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
full power of Google Cloud Platform to ensure high availability and performance of our data environment. Optimization: Refining and optimizing complex SQL queries and Python scripts to ensure efficient data processing and cost management. Architecture: Collaborating with stakeholders to define data models and ensure the data architecture supports the company … rapid scaling. Best Practices: Championing engineering excellence through CI/CD, automated testing, and comprehensive documentation. Your Tech Stack Language: Expert-level Python and advanced SQL . Cloud: Extensive experience with GCP (BigQuery, Cloud Storage, Dataflow/PubSub, Cloud Composer/Airflow). Tools: Experience with data orchestration tools ...

Director, Data Architecture, Engineering

Hiring Organisation
LT Harper Recruitment Group
Location
City of London, London, United Kingdom
build of robust, scalable data platforms. Leading complex data and engineering engagements using Microsoft Azure, Fabric and Databricks. Writing and reviewing high-quality Python and SQL for data transformation, automation and analytics. Translating complex technical concepts into clear, actionable insights for non-technical audiences. Building a pipeline of advisory … cloud services for data storage, processing and analytics. Proven experience with modern data platforms such as Fabric and Databricks, with strong programming skills in Python and SQL. Confidence engaging with senior stakeholders, including board-level conversations, while remaining comfortable working close to the technology. For More information, apply here ...

Backend Engineer (JVM) - Up to £95k

Hiring Organisation
Few&Far
Location
City of London, London, United Kingdom
trade-offs This isn’t a feature factory. You’ll design, build, ship, own. Tech: Kotlin (open to any JVM background), Python, Terraform, Agentic AI, cloud-native, event-driven services If you’ve built fault-tolerant, distributed systems before, tools matter less than judgement You’ll Have 3+ years building … production distributed systems in a startup environment, using backend languages like Java, Kotlin, Scala, Python, C++, Rust or Go Experience designing external-facing APIs and working with messy, unstructured data Shipped AI/LLM systems beyond proof-of-concept Startup experience: comfortable in ambiguity, taken high ownership Strong instincts ...

Mainframe Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
developers, infrastructure engineers, and project managers to ensure timely resolution of issues and alignment on priorities. Work on automation using but not limited to Python, Shell scripting, and GitLab pipeline. Required Skills and Qualifications: Proven experience in mainframe environments, particularly with CICS webservices, ZOS Connect EE, DB2, and batch processing. … pressure and manage multiple priorities in a fast-paced environment. Strong problem-solving skills and a proactive approach to identifying and resolving issues. Desirable: Python knowledge, Experience with Gitlab pipeline, Improvement/Automation with ...

Junior Back-end Engineer

Hiring Organisation
ivee
Location
City of London, London, United Kingdom
backend career who’s excited to learn, ship, and grow. Key responsibilities: Build and maintain server-side logic using modern backend frameworks (e.g. Node.js, Python, Go) Work with APIs — designing, integrating, and maintaining RESTful endpoints Support database design and optimisation (e.g. PostgreSQL, MongoDB) Collaborate with front-end and product teams … looking for: 1–2 years of experience (including internships or personal projects) in backend development Proficiency in at least one backend language (Node.js, Python, Go, etc.) Basic understanding of how REST APIs work Familiarity with databases and version control (e.g. Git) Strong problem-solving mindset and attention to detail ...

Head of Pre-Trade Data and Analytics

Hiring Organisation
Cititec
Location
City of London, London, United Kingdom
consolidation, common APIs, scraper consolidation, and platform resilience improvements. Rationalise, deduplicate, and govern curves across systems. Architect and oversee a Medallion-style platform using Python, React, ClickHouse, Kafka/event streaming, Azure/AWS, and C#/.NET. Remain hands-on with design, prototyping, code reviews, and architecture decisions. Lead … SLAs across regions. Required Experience Solid experience in data engineering, platform architecture, or distributed systems in trading or high-data environments. Hands-on Python experience and familiarity with modern frameworks; React for UI delivery. Experience with streaming/event-driven architectures (Kafka) and large-scale data processing; ClickHouse or similar ...

Artificial Intelligence Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
Doing: AI Engineering & Build Designing and building AI solutions using: Azure AI Foundry M365 Agents Copilot extensions/plugins Micro stack orchestratinsmkl1on Python as the primary engineering language Creating purpose‐built AI agents aligned to CRM AI business maps, workflow automation and productivity conversations. Innovation & Pilot Delivery Driving innovation pilots … still early in their AI maturity — translating concepts into workable, pragmatic solutions. Key Skills and Experience: Technical Skills Strong engineering background with Python at the core. Hands‐on experience across the Microsoft AI ecosystem , including: Azure AI Foundry M365 extensibility/agent frameworks Copilot customisation Microstack orchestration Ability to design ...

Junior Fullstack Engineer

Hiring Organisation
Medly AI
Location
City of London, London, United Kingdom
next generation of educational technology. Role Responsibilities Build and maintain features across our web app (Next.js) and mobile app (React Native) Contribute to our Python backend and help improve API performance Collaborate on database design and write efficient queries in Postgres Work with AWS services to deploy and maintain … year of professional experience Familiarity with JavaScript and Next.js (React or React Native experience is a plus) Basic knowledge of Python Understanding of SQL and relational databases Eagerness to learn cloud services (AWS experience is a plus but not required) Ideal Candidate Quality Focus: Obsessive attention to detail and commitment ...

LLM Engineer

Hiring Organisation
Helika
Location
City of London, London, United Kingdom
build "Enterprise Grade." Bias for Action: Eliminate analysis paralysis. You will make technical trade-offs quickly to keep the team moving forward. 2. Python-Centric Engineering Hands-On Coding: serve as the primary contributor to our Python codebase. You will write clean, asynchronous code (FastAPI, AsyncIO) that handles complex agent … environment where priorities can shift. Pragmatism: You understand that "Done" is better than "Perfect." You focus on business value over over-engineering. Technical Expertise Python Mastery: Expert-level Python skills are non-negotiable. You know the ecosystem (Pydantic, Poetry, FastAPI) inside and out. AI Engineering: Experience building actual products with ...