SENIOR PYTHON ENGINEER LONDON £65,000 - £85,000 You’re a problem-solver who thrives on complex data challenges and wants to see your work make a measurable impact? Here’s your chance to join. Work with real-world ML datasets, cutting-edge data systems, and a platform that processes billions of events — all while helping shape how global advertisers … empowering marketing teams with trusted data and higher ROI. Your work will directly support their mission to make digital advertising more transparent and impactful. THE ROLE As a Senior Python Engineer , you’ll play a key role in building and improving the core platform that powers the AI-driven traffic protection and analytics capabilities. You’ll work closely with the … high-performance backend solutions that process massive datasets. Specifically, you can expect to be involved in the following: Developing and maintaining large-scale data pipelines and backend systems in Python . Working with AI/ML datasets to help train and deploy new detection models. Building and improving integrations, and working on greenfield product developments. Collaborating with data science and More ❯
Role: Back End Engineer – Python Location : London | Hybrid 2 days in office (Tuesday & Thursday) Package : Up to £70,000 + 10% Bonus + Private Medical + 8% Pension Join a well-established and fast-growing digital tech team within a major automotive services organisation. Originally launched as a startup, the business has evolved into a key player in the automotive … be part of a collaborative, agile environment with a strong engineering culture and a modern tech stack. What You’ll Be Doing Designing and building robust backend services using Python and AWS Collaborating with cross-functional teams including Product, Design, and Sales Participating in code reviews, pair programming, and technical presentations Contributing to continuous improvement of Agile processes and engineering … practices Tech Stack Python | FastAPI | AWS | Django | PostgreSQL | OpenSearch | Kubernetes | Helm | Terraform | GitHub What We’re Looking For Strong Python development experience (any framework) Solid understanding of databases, OO design, and SOLID principles Passion for problem-solving and continuous learning Excellent communication and collaboration skills Perks & Benefits Hybrid working: 2 days/week (Tuesdays & Thursdays) 28 days holiday + bank More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Anson McCade
Role: Back End Engineer – Python Location : London | Hybrid 2 days in office (Tuesday & Thursday) Package : Up to £70,000 + 10% Bonus + Private Medical + 8% Pension Join a well-established and fast-growing digital tech team within a major automotive services organisation. Originally launched as a startup, the business has evolved into a key player in the automotive … be part of a collaborative, agile environment with a strong engineering culture and a modern tech stack. What You’ll Be Doing Designing and building robust backend services using Python and AWS Collaborating with cross-functional teams including Product, Design, and Sales Participating in code reviews, pair programming, and technical presentations Contributing to continuous improvement of Agile processes and engineering … practices Tech Stack Python | FastAPI | AWS | Django | PostgreSQL | OpenSearch | Kubernetes | Helm | Terraform | GitHub What We’re Looking For Strong Python development experience (any framework) Solid understanding of databases, OO design, and SOLID principles Passion for problem-solving and continuous learning Excellent communication and collaboration skills Perks & Benefits Hybrid working: 2 days/week (Tuesdays & Thursdays) 28 days holiday + bank More ❯
Senior Python Backend Developer Kings Cross, London- Onsite 2/3 days a week 6 month contract Inside of IR25 £750 - £800 per day My client is seeking a highly skilled software engineer to join its AI/ML team, contributing to the development of cutting-edge applications that accelerate drug discovery and enable personalised therapies. The ideal candidate will … have strong Python backend development experience, preferably with FastAPI, and be proficient in cloud-native infrastructure (Google Cloud preferred), DevOps practices, and automated testing. While a background in life sciences is a plus, a passion for improving healthcare through technology is essential. The role involves integrating AI/ML components into scalable web applications, collaborating across technical teams, and continuously … improving software quality and performance. Key responsibilities Back end development for a Python web application Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high quality software implementations according to best practices, including automated test suites and documentation Develop, measure, and monitor key metrics for all tools and services and consistently seek to iterate More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Morson Edge (Technology)
Role We’re seeking Senior Software Engineers with a product builder mindset to help shape and scale a cutting-edge platform. You’ll work across a modern tech stack (Python, TypeScript, Vue.js, AWS/GCP, MongoDB) within a collaborative, remote-first environment. What You’ll Do Build, ship, and support high-quality products in an agile, cloud-native environment. Collaborate … a pivotal role in influencing the product’s direction and long-term success. What You Bring Deep understanding of modern web applications and scalable architecture. Hands-on experience with Python, JavaScript/TypeScript, and cloud (AWS/GCP). Strong focus on code quality, testing, and observability. A passion for learning, problem-solving, and building products that make a difference. More ❯
Tittle : Python Developer Location : Dallas-Fort Worth Area. Duration : long Term Who We Are We are a team of enthusiasts who dedicate their time to building reliable and scalable solutions to help build, run and transform enterprise applications. We promote strong engineering practices, use innovative technologies and cloud-based microservice architecture which enable Crunchyroll enterprise teams to integrate seamlessly and … it convenient and easily accessible for our team members from across the Requirement : 5+ years in the field as a software engineer or architect Deep knowledge of development with Python (3.8+) or NodeJS Certifications in a cloud platform (developer or architect level) Architecture experience using cloud-native services (GCP Preferred) Experience writing unit tests and synthetic tests with tools like More ❯
West London, London, United Kingdom Hybrid/Remote Options
Client Server
Senior Data Engineer (Snowflake SQL Python) London/WFH to £85k Are you a skilled data technologist with strong leadership and stakeholder management skills? You could be progressing your career in a senior, hands-on Data Engineer position at a global tech company that provide data centric software solutions to major blue-chip and government organisations to enable them to … data pipelines on cloud platforms, working with a wide variety of data structures such as Data Warehouses and Data Lakes You have strong Snowflake skills, combined with SQL and Python You have experience of working in Agile development environments, with a good understanding of DevOps practices, CI/CD, Automation You have commercial acumen and can spot opportunities to innovate … Pension and Life Assurance Committees for wellness, charity and volunteering, DE&I Team and company socials Apply now to find out more about this Senior Data Engineer (Snowflake SQL Python) 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 come More ❯
London, England, United Kingdom Hybrid/Remote Options
Client Server
Senior Data Engineer (Snowflake SQL Python) London/WFH to £85k Are you a skilled data technologist with strong leadership and stakeholder management skills? You could be progressing your career in a senior, hands-on Data Engineer position at a global tech company that provide data centric software solutions to major blue-chip and government organisations to enable them to … data pipelines on cloud platforms, working with a wide variety of data structures such as Data Warehouses and Data Lakes You have strong Snowflake skills, combined with SQL and Python You have experience of working in Agile development environments, with a good understanding of DevOps practices, CI/CD, Automation You have commercial acumen and can spot opportunities to innovate … Pension and Life Assurance Committees for wellness, charity and volunteering, DE&I Team and company socials Apply now to find out more about this Senior Data Engineer (Snowflake SQL Python) 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 come More ❯
deploy ML models. Create automation and tooling that enhance efficiency and insight generation. Promote best practices in data governance and software design. You’ll need: Strong programming skills in Python (NumPy, Pandas, PyTorch, TensorFlow, or Scikit-learn). Experience building data pipelines and working with structured/unstructured data (SQL/NoSQL). Familiarity with the AI/ML model More ❯
deploy ML models. Create automation and tooling that enhance efficiency and insight generation. Promote best practices in data governance and software design. You’ll need: Strong programming skills in Python (NumPy, Pandas, PyTorch, TensorFlow, or Scikit-learn). Experience building data pipelines and working with structured/unstructured data (SQL/NoSQL). Familiarity with the AI/ML model More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Areti Group | B Corp™
Multiple Software Engineers – Palantir, Strong ETL, AWS & Python -Fully Remote – UK Based – Offices based in London - MUST BE SECURITY CLEARED - DV/SC 🌳🌳🌳 Areti Group has exclusively partnered with a rapidly growing startup who are seeking 8 Software Engineers to start ASAP. These roles are fully remote. This business has grown by 75% this year and is now looking for … and analytics. Leverage AWS technologies such as S3, Glue, Redshift, and others to build and maintain data solutions. Implement best practices for security and compliance in an AWS environment. 🌳 Python Programming: Demonstrate proficiency in Python programming for data processing and manipulation. Develop custom scripts and applications as needed to enhance ETL processes. 🌳 Collaboration and Communication: Collaborate with cross-functional teams … related field. Proven experience in designing and implementing ETL pipelines in a production environment. Strong proficiency in AWS services, with a focus on data-related services. Advanced skills in Python programming for data processing and automation. Experience working with large datasets and distributed computing. Previous experience supporting major customers at the early stages of projects. Strong analytical and problem-solving More ❯
Multiple Software Engineers – Palantir, Strong ETL, AWS & Python -Fully Remote – UK Based – Offices based in London - MUST BE SECURITY CLEARED - DV/SC 🌳🌳🌳 Areti Group has exclusively partnered with a rapidly growing startup who are seeking 8 Software Engineers to start ASAP. These roles are fully remote. This business has grown by 75% this year and is now looking for … and analytics. Leverage AWS technologies such as S3, Glue, Redshift, and others to build and maintain data solutions. Implement best practices for security and compliance in an AWS environment. 🌳 Python Programming: Demonstrate proficiency in Python programming for data processing and manipulation. Develop custom scripts and applications as needed to enhance ETL processes. 🌳 Collaboration and Communication: Collaborate with cross-functional teams … related field. Proven experience in designing and implementing ETL pipelines in a production environment. Strong proficiency in AWS services, with a focus on data-related services. Advanced skills in Python programming for data processing and automation. Experience working with large datasets and distributed computing. Previous experience supporting major customers at the early stages of projects. Strong analytical and problem-solving More ❯
promptly and effectively. Understand customer needs and address issues with empathy and a sense of urgency. Undertake any other reasonable activities required by management. Required Skills Excellent proficiency in Python Experience with TypeScript or Javascript, and Rust would be a strong plus Familiarity with C++ is a plus. Experience in Financial domain is a plus. Strong command of a typed … capabilities. Outstanding verbal and written communication skills. Strong organizational and interpersonal skills. Education and Experience: Degree in Computer Science or related field. 9+ years of software development experience using Python or any other OOP languages. More ❯
promptly and effectively. Understand customer needs and address issues with empathy and a sense of urgency. Undertake any other reasonable activities required by management. Required Skills Excellent proficiency in Python Experience with TypeScript or Javascript, and Rust would be a strong plus Familiarity with C++ is a plus. Experience in Financial domain is a plus. Strong command of a typed … capabilities. Outstanding verbal and written communication skills. Strong organizational and interpersonal skills. Education and Experience: Degree in Computer Science or related field. 9+ years of software development experience using Python or any other OOP languages. More ❯
engineering best practices (code review, testing, CI/CD) Ensure reliability, security, and performance at scale Hands-On Engineering Write production code in React/Next.js, Node.js/NestJS, Python Build complex features (especially multi-party coordination workflows) Optimize AI model performance and conversational flows Debug critical production issues Team Building Hire and mentor world-class AI and software engineers … strategically (currently 3 engineers → 10+ by EOY) 🛠️ Tech Stack Frontend: React • Next.js • Tailwind • React Query • Shadcn/ui Backend: Node.js • NestJS • MongoDB • Redis • BullMQ • Microservices • GCP AI/ML: Python • LangChain/LangGraph/LangSmith • Qdrant (vector DB) • Pydantic • FastAPI Integrations: WhatsApp Business API • Email • SMS • Webhooks • WebSockets ✅ What We're Looking For Must-Haves: Technical Chops 5+ years software … engineering in production environments Strong in Node.js/TypeScript and Python Experience building microservices architectures Hands-on AI/ML integration (LLMs, RAG, agent frameworks) Cloud infrastructure expertise (GCP/AWS/Azure) Real-time systems and async processing experience Leadership 2+ years leading engineering teams (3-10 people) Proven track record hiring and mentoring engineers Built engineering processes from More ❯
engineering best practices (code review, testing, CI/CD) Ensure reliability, security, and performance at scale Hands-On Engineering Write production code in React/Next.js, Node.js/NestJS, Python Build complex features (especially multi-party coordination workflows) Optimize AI model performance and conversational flows Debug critical production issues Team Building Hire and mentor world-class AI and software engineers … strategically (currently 3 engineers → 10+ by EOY) 🛠️ Tech Stack Frontend: React • Next.js • Tailwind • React Query • Shadcn/ui Backend: Node.js • NestJS • MongoDB • Redis • BullMQ • Microservices • GCP AI/ML: Python • LangChain/LangGraph/LangSmith • Qdrant (vector DB) • Pydantic • FastAPI Integrations: WhatsApp Business API • Email • SMS • Webhooks • WebSockets ✅ What We're Looking For Must-Haves: Technical Chops 5+ years software … engineering in production environments Strong in Node.js/TypeScript and Python Experience building microservices architectures Hands-on AI/ML integration (LLMs, RAG, agent frameworks) Cloud infrastructure expertise (GCP/AWS/Azure) Real-time systems and async processing experience Leadership 2+ years leading engineering teams (3-10 people) Proven track record hiring and mentoring engineers Built engineering processes from More ❯
strategies. What You'll Get Work on the design and build of fast, scalable market-data systems used across trading and research groups. Contribute to a modern engineering ecosystem: Python, cloud-native tooling, containerisation, large-scale data lake technologies. Partner closely with exceptional quantitative researchers, data engineers and traders. Influence architectural decisions and continuously refine pipeline performance. Join a culture … documentation of data pipelines, architecture diagrams, and operational procedures. What You Bring 3+ years of software engineering experience, preferably focused on market-data infrastructure or quantitative trading systems. Strong Python expertise with a solid grasp of performance optimisation and concurrency. Proven experience designing, building, and tuning tick-data pipelines for high-volume environments. Hands-on experience with Parquet storage; experience More ❯
strategies. What You'll Get Work on the design and build of fast, scalable market-data systems used across trading and research groups. Contribute to a modern engineering ecosystem: Python, cloud-native tooling, containerisation, large-scale data lake technologies. Partner closely with exceptional quantitative researchers, data engineers and traders. Influence architectural decisions and continuously refine pipeline performance. Join a culture … documentation of data pipelines, architecture diagrams, and operational procedures. What You Bring 3+ years of software engineering experience, preferably focused on market-data infrastructure or quantitative trading systems. Strong Python expertise with a solid grasp of performance optimisation and concurrency. Proven experience designing, building, and tuning tick-data pipelines for high-volume environments. Hands-on experience with Parquet storage; experience More ❯
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Kalisa
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯
East London, London, United Kingdom Hybrid/Remote Options
Kalisa
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯
Leeds, West Yorkshire, United Kingdom Hybrid/Remote Options
Kalisa
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯
Bolton, Greater Manchester, United Kingdom Hybrid/Remote Options
Kalisa
Summary About : Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes. Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP Please only apply if you are fully eligible to work in … the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications. You will join a small, agile, and passionate team to enhance and … to build something from scratch and see it through to completion. As a key team member, you will: Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem. Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall More ❯