london (city of london), south east england, united kingdom
Block MB
Backend Engineer (Python) - Tech for Good | £75m-Funded Startup Location: London, UK - 1 day in office minimum Salary: £60k-£70k + benefits Tech Stack: Python, FastAPI, Docker, AWS, Django, PySpark, PyTorch, Kubernetes About the Company Our client is an ambitious tech-for-good organisation on a mission to reduce carbon emissions across the UK using AI-driven technology. With more … engineering team to meet growing demand and expand their industry-leading platform. The Role They are seeking a talented mid-senior level Backend Engineer with a strong focus on Python development. You’ll work closely with a diverse engineering team to build and scale next-generation backend systems, contribute to new feature development, and take ownership of critical areas of … CI/CD pipelines and cloud scalability. Mentor junior engineers and share best practices within the team. About You 3–5 years of backend engineering experience. Strong proficiency with Python and frameworks such as FastAPI or Django. Experience developing and scaling RESTful APIs and backend systems. Solid understanding of cloud infrastructure (AWS preferred). Familiarity with containerization (Docker, Kubernetes). More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Opus Recruitment Solutions
architect and deliver a secure, scalable, multi-cloud banking platform using modern technologies. This is a career-defining role for a polyglot engineer with deep expertise in Rust and Python , and a passion for building robust systems in highly regulated environments. What You’ll Do Design and build core banking services and infrastructure using Rust , Python , and other modern languages. … a high-trust, remote-first environment with minimal oversight. Participate in code reviews, architecture discussions, and technical decision-making. You'll have the following: Extensive experience in Rust and Python in production environments. Proven track record of building and deploying systems in multi-cloud environments (AWS & GCP). Strong understanding of cloud security , infrastructure as code , and platform engineering . More ❯
transitioned into a more engineering-focused position, someone who enjoys understanding the business context just as much as building the data solutions behind it. You'll work extensively with Python , Snowflake , SQL , and dbt to design, build, and maintain scalable, high-quality data pipelines and models that support decision-making across the business. This is a hands-on, collaborative role … suited to someone who's confident communicating with data, product, and engineering teams, not a "heads-down coder" type. Top 4 Core Skills Python - workflow automation, data processing, and ETL/ELT development. Snowflake - scalable data architecture, performance optimisation, and governance. SQL - expert-level query writing and optimisation for analytics and transformations. dbt (Data Build Tool) - modular data modelling, testing … documentation, and version control. Key Responsibilities Design, build, and maintain dbt models and SQL transformations to support analytical and operational use cases. Develop and maintain Python workflows for data ingestion, transformation, and automation. Engineer scalable, performant Snowflake pipelines and data models aligned with business and product needs. Partner closely with analysts, product managers, and engineers to translate complex business requirements More ❯
london (city of london), south east england, united kingdom
83data
transitioned into a more engineering-focused position, someone who enjoys understanding the business context just as much as building the data solutions behind it. You’ll work extensively with Python , Snowflake , SQL , and dbt to design, build, and maintain scalable, high-quality data pipelines and models that support decision-making across the business. This is a hands-on, collaborative role … suited to someone who’s confident communicating with data, product, and engineering teams, not a “heads-down coder” type. Top 4 Core Skills Python — workflow automation, data processing, and ETL/ELT development. Snowflake — scalable data architecture, performance optimisation, and governance. SQL — expert-level query writing and optimisation for analytics and transformations. dbt (Data Build Tool) — modular data modelling, testing … documentation, and version control. Key Responsibilities Design, build, and maintain dbt models and SQL transformations to support analytical and operational use cases. Develop and maintain Python workflows for data ingestion, transformation, and automation. Engineer scalable, performant Snowflake pipelines and data models aligned with business and product needs. Partner closely with analysts, product managers, and engineers to translate complex business requirements More ❯
Software Engineer- Python- Data Science and Machine Learning Team The RJC Group is looking for an experienced Software Engineer to join a growing Data Science & Machine Learning team within a global energy and commodities company. This is a hands-on role building the tools, pipelines, and infrastructure that power real-world ML applications across commercial and operational areas. What Youll … ML solutions Build and maintain clean, reliable data pipelines and internal tools Collaborate with technical and non-technical stakeholders What You Bring 35+ years of experience in software engineering (Python) Experience with fastAPI, cloud platforms (AWS, Azure, or GCP), Docker. Bonus: experience with ML workflows, Spark, Airflow, or trading systems Why Join Up to 140K Up to 100% bonus Relocation More ❯
Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising their industry with a track … technology companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies. Core skills for the Java Software Engineer: 5yrs in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS … events (dinner, bowling, karting, poker nights, board-games etc.) The latest tech, generous annual leave and an amazing office with a balcony overlooking Notting Hill. Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence Applicants must have the right to work in the UK, no sponsorship is offered for this role More ❯
london (city of london), south east england, united kingdom
Bentley Whitaker Search and Selection
Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising their industry with a track … technology companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies. Core skills for the Java Software Engineer: 5yrs in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS … events (dinner, bowling, karting, poker nights, board-games etc.) The latest tech, generous annual leave and an amazing office with a balcony overlooking Notting Hill. Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence Applicants must have the right to work in the UK, no sponsorship is offered for this role More ❯
SR2 | Socially Responsible Recruitment | Certified B Corporation™
communicate, scale, and deliver value across the business. The Role You’ll be responsible for designing and developing high-performance integrations that connect core systems and partners, using C#, Python, and Azure cloud technologies . This is a hands-on engineering role that also offers the opportunity to influence architecture, best practices, and technology direction. What You’ll Be Doing … Designing, building, and maintaining high-throughput, reliable integration components using C# and Python Developing and optimising SQL interactions that underpin APIs and message-driven workflows Implementing asynchronous messaging via Azure Service Bus (or similar) to decouple systems and ensure scalability and resilience Building workflow automations with Azure Logic Apps to orchestrate processes and connect enterprise systems Managing API exposure and … maintainability Championing best practices around API versioning, secure messaging, error handling, monitoring, and CI/CD automation What We’re Looking For Strong hands-on experience with C# and Python in production settings Proven proficiency in SQL – from database design to performance tuning Practical experience with Azure Service Bus (queues, topics) or comparable enterprise messaging technologies Experience using Azure Logic More ❯
Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK, total ownership of greenfield projects, modern tech stack (Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers … true software engineering role where you'll be designing, building, and scaling complex systems that solve real problems in healthcare. Role Design and build production-grade backend systems using Python and FastAPI Develop distributed, high-performance services and APIs for AI-driven platforms Contribute to architecture decisions, scalability planning, and system optimisation Implement best practices in testing, CI/CD … to deliver end-to-end solutions Drive continuous improvement and innovation across the engineering organisation Skills 5+ years of experience as a Software Engineer building modern backend systems Strong Python skills (FastAPI preferred; Flask or Django also considered) Knowledge of system design, data modelling, and distributed architecture Familiarity with cloud technologies (AWS, Azure, or GCP) and containerisation Understanding of software More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Hunter Bond
Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK, total ownership of greenfield projects, modern tech stack (Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers … true software engineering role where you'll be designing, building, and scaling complex systems that solve real problems in healthcare. Role Design and build production-grade backend systems using Python and FastAPI Develop distributed, high-performance services and APIs for AI-driven platforms Contribute to architecture decisions, scalability planning, and system optimisation Implement best practices in testing, CI/CD … to deliver end-to-end solutions Drive continuous improvement and innovation across the engineering organisation Skills 5+ years of experience as a Software Engineer building modern backend systems Strong Python skills (FastAPI preferred; Flask or Django also considered) Knowledge of system design, data modelling, and distributed architecture Familiarity with cloud technologies (AWS, Azure, or GCP) and containerisation Understanding of software More ❯
Central London / West End, London, United Kingdom Hybrid / WFH Options
Hunter Bond
Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK, total ownership of greenfield projects, modern tech stack (Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers … true software engineering role where you'll be designing, building, and scaling complex systems that solve real problems in healthcare. Role Design and build production-grade backend systems using Python and FastAPI Develop distributed, high-performance services and APIs for AI-driven platforms Contribute to architecture decisions, scalability planning, and system optimisation Implement best practices in testing, CI/CD … to deliver end-to-end solutions Drive continuous improvement and innovation across the engineering organisation Skills 5+ years of experience as a Software Engineer building modern backend systems Strong Python skills (FastAPI preferred; Flask or Django also considered) Knowledge of system design, data modelling, and distributed architecture Familiarity with cloud technologies (AWS, Azure, or GCP) and containerisation Understanding of software More ❯
City of London, Greater London, UK Hybrid / WFH Options
Immersum
Job Title: Data Engineer (AI) Location: London (Hybrid – 3 days in office) Industry: Media, Campaign Media, AI/Data Tech: Python, Data engineering, pipelines, BigQuery, SnowFlake Salary: £60-70k *Unfortunately, Visa sponsorship is not on offer for this position. About the Role We’re hiring an AI Data Engineer to help build the next generation of intelligent analytics systems. … tools, scalable data systems, and AI-powered reporting automation. What you’ll do Contribute to the design and maintenance of analytics pipelines, ensuring reliability and performance. Use SQL and Python to build data workflows, automation scripts, and reporting processes. Support the integration of AI and LLMs into reporting and query-generation systems. Develop dashboards and automated insights for business stakeholders. … Learn how to evolve manual workflows into scalable, automated intelligence systems. What we’re looking for Experience in data analytics, data engineering, or campaign analytics. Strong SQL skills, plus Python (or R) for data processing and automation. Interest in AI/LLM applications — hands-on experience welcome but not essential. Understanding of digital performance metrics and data connectors (experience with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Immersum
Job Title: ML Engineer (AI) Location: London (Hybrid – 3 days in office) Industry: Media, Campaign Media, AI/Data Tech: Python, Data engineering, pipelines, BigQuery, SnowFlake Salary: £60-70k *Unfortunately, Visa sponsorship is not on offer for this position. About the Role We’re hiring an AI Data Engineer to help build the next generation of intelligent analytics systems. … tools, scalable data systems, and AI-powered reporting automation. What you’ll do Contribute to the design and maintenance of analytics pipelines, ensuring reliability and performance. Use SQL and Python to build data workflows, automation scripts, and reporting processes. Support the integration of AI and LLMs into reporting and query-generation systems. Develop dashboards and automated insights for business stakeholders. … Learn how to evolve manual workflows into scalable, automated intelligence systems. What we’re looking for Experience in data analytics, data engineering, or campaign analytics. Strong SQL skills, plus Python (or R) for data processing and automation. Interest in AI/LLM applications — hands-on experience welcome but not essential. Understanding of digital performance metrics and data connectors (experience with More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Immersum
Job Title: ML Engineer (AI) Location: London (Hybrid – 3 days in office) Industry: Media, Campaign Media, AI/Data Tech: Python, Data engineering, pipelines, BigQuery, SnowFlake Salary: £60-70k *Unfortunately, Visa sponsorship is not on offer for this position. About the Role We’re hiring an AI Data Engineer to help build the next generation of intelligent analytics systems. … tools, scalable data systems, and AI-powered reporting automation. What you’ll do Contribute to the design and maintenance of analytics pipelines, ensuring reliability and performance. Use SQL and Python to build data workflows, automation scripts, and reporting processes. Support the integration of AI and LLMs into reporting and query-generation systems. Develop dashboards and automated insights for business stakeholders. … Learn how to evolve manual workflows into scalable, automated intelligence systems. What we’re looking for Experience in data analytics, data engineering, or campaign analytics. Strong SQL skills, plus Python (or R) for data processing and automation. Interest in AI/LLM applications — hands-on experience welcome but not essential. Understanding of digital performance metrics and data connectors (experience with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
VirtueTech Recruitment Group
technical and non-technical teams to identify business problems and translate them into data science solutions. You'll lead the development of machine learning models - be hands on with Python and its data science ecosystem, ensuring data quality, building analytical pipelines, and visualising insights for stakeholders. 💰 Up to £600/Day Outside IR35 📑 6 months rolling contract 📍 Remote, LDN ♻️ Data … Scientist - Python, Pandas, NumPy, Git, and Azure/AWS Key Responsibilities: Partner with cross-functional teams to translate business pain points into scalable data science solutions. Architect and deploy ML models (with a focus on time-series forecasting) to optimise field operations. Own the full analytics lifecycle—from data wrangling and pipeline design to model deployment and stakeholder storytelling. Mentor More ❯
Central London / West End, London, United Kingdom Hybrid / WFH Options
VirtueTech Recruitment Group
technical and non-technical teams to identify business problems and translate them into data science solutions. You'll lead the development of machine learning models - be hands on with Python and its data science ecosystem, ensuring data quality, building analytical pipelines, and visualising insights for stakeholders. 💰 Up to £600/Day Outside IR35 📑 6 months rolling contract 📍 Remote, LDN ♻️ Data … Scientist - Python, Pandas, NumPy, Git, and Azure/AWS Key Responsibilities: Partner with cross-functional teams to translate business pain points into scalable data science solutions. Architect and deploy ML models (with a focus on time-series forecasting) to optimise field operations. Own the full analytics lifecycle—from data wrangling and pipeline design to model deployment and stakeholder storytelling. Mentor More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Senior Data Engineer (GCP BigQuery Python SQL) London/WFH to £85k Are you a tech savvy Data Engineer with Google Cloud expertise combined with client facing skills? You could be joining a global technology consultancy with a range of banking, financial services and insurance clients in a senior, hands-on Data Engineer role. As a Senior Data Engineer you … About you: You are an experienced Data Engineer within financial services environments You have expertise with GCP including BigQuery, Pub/Sub, Cloud Composer and IAM You have strong Python, SQL and PySpark skills You have experience with real-time data streaming using Kafka or Spark You have a good knowledge of Data Lakes, Data Warehousing, Data Modelling You're … mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Apply now to find out more about this Senior Data Engineer (GCP BigQuery Python SQL) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people More ❯
Azure Data Factory for data ingestion and transformation Work with Azure Data Lake, Synapse, and SQL DW to manage large volumes of data Develop data transformation logic using SQL, Python, and PySpark code Collaborate with cross-functional teams to translate business requirements into data solutions Create mapping documents, transformation rules, and ensure quality delivery Contribute to DevOps processes, CI/… engineering, ETL development and big data solutions Recent experience within Insurance Technology essential Solid expertise with Azure Databricks, Data Factory, ADLS, Synapse, and Azure SQL Strong skills in SQL, Python, and PySpark Solid understanding of DevOps, CI/CD, and Agile methodologies Excellent communication and stakeholder management skills More ❯
Full-Stack Product Engineer | Python | TypeScript | React | SQL | Rust | London (On-site) Location: London (On-site, 5 days per week) Package: £87K – £130K + Equity Eligibility: UK-based candidates only | Visa sponsorship not available Required Tech Stack/Experience: Python, SQL, TypeScript, React, (Rust or C, Nice to have) | 4 + years hands-on full-stack development | Experience building technically … high-calibre engineering group building brand-new, technically complex products from scratch. Not a feature factory - this is real product engineering. Must-haves: 4+ years full-stack engineering experience (Python and/or TypeScript + React) Strong SQL knowledge and ability to work across the stack Experience shipping production-grade products (not just internal tools) Ability to work collaboratively in … how products are built and deployed. What They’re Looking For 4-8 years of full-stack engineering, ideally with startup or scale-up experience. Strong technical foundation in Python, SQL, TypeScript, and React. Comfortable owning features end-to-end and delivering tangible impact. Passion for learning, experimentation, and creative problem-solving. Excellent communication skills - you can explain why something More ❯
london (city of london), south east england, united kingdom
Calibre Candidates
Azure Data Factory for data ingestion and transformation Work with Azure Data Lake, Synapse, and SQL DW to manage large volumes of data Develop data transformation logic using SQL, Python, and PySpark code Collaborate with cross-functional teams to translate business requirements into data solutions Create mapping documents, transformation rules, and ensure quality delivery Contribute to DevOps processes, CI/… engineering, ETL development and big data solutions Recent experience within Insurance Technology essential Solid expertise with Azure Databricks, Data Factory, ADLS, Synapse, and Azure SQL Strong skills in SQL, Python, and PySpark Solid understanding of DevOps, CI/CD, and Agile methodologies Excellent communication and stakeholder management skills More ❯
NLP, time-series forecasting, and optimization algorithms as needed Collaborate with MLOps teams to deploy production-grade pipelines Communicate insights through dashboards and visualizations using Power BI, Tableau, or Python Engage with stakeholders to define use cases and success metrics Participate in Agile ceremonies and contribute to the enterprise AI roadmap Required Skills Proven experience in data science and machine … learning Strong Python skills and familiarity with ML libraries (Scikit-learn, TensorFlow, PyTorch) Experience with data visualization tools (Power BI, Tableau, Matplotlib, Seaborn) Ability to translate complex model outputs into actionable business insights Excellent communication skills with both technical and non-technical audiences Familiarity with Agile methodologies and cross-functional collaboration Background in banking or financial services is a plus More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Arrows
/Azure) Promote engineering best practices, security, and observability Mentor engineers and foster a culture of continuous improvement Contribute to technology direction, including adoption of tools like Go and Python What We’re Looking For Deep expertise in C#, .NET Core, ASP.NET Cloud experience with AWS (Lambda, DynamoDB) or Azure + DevOps Proficiency with IaC tools like Terraform Strong grasp … of modern dev methodologies and design patterns Exposure to containerization and CI/CD tooling Bonus: Familiarity with Go, Python, React, TypeScript, Node.js 🗺️ Location : Hybrid – 2 days a week in London This is a high-impact role in a growing company where your technical voice will be heard - and acted on. Ready to build, lead, and transform? Let’s connect More ❯
Quant Engineering (Python - OMS/EMS) The mandate: Our client—a global, multi-asset investment manager—has rolled out cutting-edge large-language-model coding assistants across its Risk & Portfolio-Tech organisation. They now need a senior engineer who can turn “moon-shot” ideas into production tools , guiding the business on what LLMs can really do and delivering rapid-fire … apps. What you’ll tackle Spot the pain-points across Equities, Credit, Rates and central Risk teams; translate data-flow headaches into buildable tech projects. Prototype at pace in Python—leveraging LLM co-pilots—to stand-up analytics services, REST APIs and lightweight Dash/React front-ends. Own the full stack: data ingestion (SQL, files, feeds), business logic, web … knowledge-share sessions. Stay user-facing —white-board with quants, ask clarifying questions, iterate live and keep comms flowing. You in a nutshell 5 + years building production-grade Python systems for data-heavy businesses; comfortable with tests, version control and optimisation. Confident SQL , exposure to REST and messaging (Rabbit, Kafka, etc.), and enough Linux to troubleshoot on the command More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Arrows
/Azure) Promote engineering best practices, security, and observability Mentor engineers and foster a culture of continuous improvement Contribute to technology direction, including adoption of tools like Go and Python What We’re Looking For Deep expertise in C#, .NET Core, ASP.NET Cloud experience with AWS (Lambda, DynamoDB) or Azure + DevOps Proficiency with IaC tools like Terraform Strong grasp … of modern dev methodologies and design patterns Exposure to containerization and CI/CD tooling Bonus: Familiarity with Go, Python, React, TypeScript, Node.js 🗺️ Location : Hybrid – 2 days a week in London This is a high-impact role in a growing company where your technical voice will be heard - and acted on. Ready to build, lead, and transform? Let’s connect More ❯
