23 of 23 Python Software Engineer Jobs in the City of London

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving complex problems in the … FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring other engineers Building greenfield features that solve real … world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead projects (and More ❯

Social network you want to login/join with: Senior Software Engineer - Remote - Fintech - Up to £120k - Python, TypeScript, AWS, London (City of London) Client: Opus Recruitment Solutions Location: London (City of London), United Kingdom Job Category: Other EU work permit required: Yes Job Views: 2 Posted: 23.05.2025 Expiry Date: 07.07.2025 Job Description: I am exclusively supporting … a FinTech Product Company that is currently hiring for 2 Senior Software Engineers to join their remote engineering team. The company is profitable and has an existing product used by multiple enterprise clients. They seek confident, experienced, and passionate Senior Software Engineers with a product mindset and deep understanding of software engineering. The role is full-stack … but leans towards backend development. Their tech stack includes: Python React/TypeScript Node.js AWS GenAI Experience with another backend language (Ruby, C++, Elixir, Haskell, Go, Clojure, or Scala) is a plus Private projects demonstrating passion for software engineering are also advantageous The company is heavily involved in AI and uses up-to-date AI technologies. The position More ❯

Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | Household Name | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Opportunity: We're supporting a fast-moving client with national reach, that needs a Python Software Engineer Contractor with strong experience across Python & AWS . This is a freelance role … within a tech-driven team – Where you’ll be the subject matter expert, designing, implementing, and managing software, platforms and more. What You'll Be Doing as a Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Design and deploy scalable, high-performance software … cause analysis, applying preventive measures to avoid recurrence. Collaborate across teams (QA, DevOps, IT) to troubleshoot and enhance system performance. Maintain clear documentation for configurations, procedures, and troubleshooting. Ensure software meets design goals: performance, modularity, reliability, and maintainability. Core Skills for the Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | £650 - 750pd Outside More ❯

Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | Household Name | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Opportunity: We're supporting a fast-moving client with national reach, that needs a Python Software Engineer Contractor with strong experience across Python & AWS . This is a freelance role … within a tech-driven team – Where you’ll be the subject matter expert, designing, implementing, and managing software, platforms and more. What You'll Be Doing as a Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Design and deploy scalable, high-performance software … cause analysis, applying preventive measures to avoid recurrence. Collaborate across teams (QA, DevOps, IT) to troubleshoot and enhance system performance. Maintain clear documentation for configurations, procedures, and troubleshooting. Ensure software meets design goals: performance, modularity, reliability, and maintainability. Core Skills for the Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | £650 - 750pd Outside More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving complex problems in the … FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring other engineers Building greenfield features that solve real … world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead projects (and More ❯

A Python Engineer is required to join a Fintech company who specialise in developing software, where sustainability meets profitability. Our client aims to change how corporate finance works, by replacing static, limited and often stale financial metrics with live data-driven insights sourced from direct connections to their clients’ systems. You will be joining a strong team … of Backend Python Engineers, Data Scientists, and financial experts, who are building the next generation of financial tools. If you're an experience Software Engineer whose passionate about Python, excited by financial technology, and eager to build meaningful systems from the ground up, we want to hear from you. As a Python Software Engineer … in a supportive, fast-paced startup environment. Requirements: 1st class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion More ❯

Senior Software Engineer – AI Innovation Lab £110-125,000 + Strong bonus and benefits package. London, hybrid working. We’re partnering exclusively with a leading global SaaS Scaleup business as they continue to build out a newly established Innovation lab, a dedicated team focused on applying AI and machine learning to solve valuable business problems across the organisation. … This is a hands-on Software Engineering role, part of a growing team, where you’ll work closely with stakeholders across the business to reimagine their systems using modern tools and cloud-native architecture. You’ll be building from the ground up in a greenfield environment, using technologies like Python, TypeScript, FastAPI, AWS and some Azure while contributing … end, from architecture and prototyping to production → Collaborate directly with business users to shape what gets built The ideal profile: 6+ years’ engineering experience, with strong backend skills (TypeScript, Python) Familiar with modern cloud platforms (AWS or Azure), microservices, and infrastructure as code Comfortable working closely with stakeholders and leading on tech decisions Pragmatic, product-minded and always looking More ❯

We're seeking an experienced Software Engineer to join a dynamic FinTech company revolutionizing the way businesses access finance. As a key member of our team, you'll develop cutting-edge technology that empowers businesses and contributes to a more inclusive financial ecosystem. We are all about leveling up the playing field 😊👌 📌Looking for: BE Engineer (Python) Full-Stack Engineer (BE Leaning with Python) 📍Office in London, but happy to be flexible on site but ideally 1/week Why Join Us? 🎉 Make a real impact: Contribute to a mission-driven company that's empowering businesses and shaping the future of finance. Grow your career: Join a high-growth environment with opportunities for professional … part of a vibrant culture: Experience a dynamic and supportive work environment with team events, social clubs, and a focus on employee well-being. About You: 😊 You're a Python expert with a strong foundation in back-end engineering principles. You have a deep understanding of relational databases and experience building, managing, and optimizing them (ideally PostgreSQL) You're More ❯

Software Engineer - £70-120k salary range - London Hybrid - AI Workflow Automation Product TDL are working with a Series A, ambitious start-up who are tackling manual admin heavy tasks across Fintech, Insurance and other surrounding sectors via their AI/LLM powered products. They are on the hunt for 2 new Developers to join the London based … Engineering team. You'll ideally have experience using most of the following stack: Backend: Python, Flask/FastAPI Frontend: React with TypeScript Infra: Terraform, GCP/AWS Ideally you'll have at least an interest and have tinkered personally with LLM type projects. Huge bonus if you have commercial experience in this area alongside the above product stack. Engineering More ❯

Social network you want to login/join with: Software Engineer - Python Development, London (City of London) col-narrow-left Client: Sirion Location: London (City of London), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: About Sirion Sirion is the … models, train and build new and custom models, and handle system integrations with source and target systems at our clients, optimizing scalability and performance according to usage. Role Title : Software Engineer Team : AI Delivery Experience : 1-3 Years About the Role : You will work on implementation projects for clients or internal initiatives, developing new integrations or refining existing … ones based on requirements. What You’ll Do : Join a squad led by an engineer, learn our Agile methodology, and contribute to sprint goals. What You’ll Need : Strong knowledge of Python Working knowledge of Django (a plus) Familiarity with containerization, Docker, or other OCI compliant tools Knowledge of Kubernetes (a plus) Excellent written and verbal communication skills More ❯

Elite global hedge fund is now seeking a number of Computer Science graduates with a minimum of one years commercial experience in Python back end or React front end software development. The client is known for taking the top 1% of global talent for it's opportunities in it's London offices, and developing their careers within the … technologist at heart. You will have one years experience at a company of scale and now be wishing to then take your career to the next stage. The right engineer will undertake multiple projects with the first one being to help create, build out and maintain a new greenfield platform for quantitative strategies and front-office tools. The successful … candidate will have the following skills/experience - 1-2 years+ commercial experience with Python, Django, React or Rust experience Strong understanding of OO principles, design patterns, data structures & algorithms Bachelors or Masters Degree in Computer Science or very similar, ideally from a top University Personality and genuine passion in technology Elite bonus culture and starting salaries on offer More ❯

Senior Software Engineer (React/Python) Salary: Up to £120k Location: On-site (London) Senior Software Engineer (React/Python) - would you like the opportunity to work for a company that specialises in digital products and experiences, combining research, analysis and insights with technology and creativity to solve business challenges? They are looking 3x … motivated, hands-on Software Engineers who will work closely with the creative team. As a Senior Software Engineer, you will get a lot of responsibility and work in an award-winning team who are looking to double this year. Key requirements: 4+ years’ experience working with React, TypeScript. Experience working with Python. Experience working with React Native … would be a bonus. If you’re a Senior Software Engineer (React, Python) looking for a new challenge, please apply. More ❯

Social network you want to login/join with: Senior Software Engineer (React/Python), London (City of London) Client: Oliver Bernard Location: London (City of London), United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 4 Posted: 16.06.2025 Expiry Date: 31.07.2025 Job Description: Senior Software Engineer (React/Python) Salary … company that specialises in digital products and experiences, combining research, analysis and insights with technology and creativity to solve business challenges? They are looking for 3 motivated, hands-on Software Engineers who will work closely with the creative team. As a Senior Software Engineer, you will have significant responsibilities and work in an award-winning team that … in size this year. Key requirements: 4+ years’ experience working with React, TypeScript. Experience working with Python. Experience with React Native is a plus. If you’re a Senior Software Engineer (React, Python) seeking a new challenge, please apply. #J-18808-Ljbffr More ❯

Senior Python Engineer - HealthTech for Good A rapidly growing HealthTech startup is seeking a Senior Python Engineer to join their mission in revolutionizing health, helping to detect any signs of chronic diseases early. This organization is at the forefront of early detection and prevention of life-altering diseases, leveraging advanced technology to identify subtle indicators within … healthcare data. This is a unique chance for an autonomous individual to drive an ambitious software project, building a first-in-kind preventative health platform and seeing their efforts directly impact lives. The company is looking for a senior engineer to work in a fast-paced agile team, dedicated to improving health outcomes at scale. What You'll … Bring 3+ years of commercial engineering experience Expertise with Python , including frameworks like Django, and experience designing APIs and services using microservices architecture . Good experience with cloud engineering (Google Cloud preferred). Familiarity with large databases (SQL/NoSQL, ElasticSearch/OpenSearch) and Linux system administration . Excellent communication skills and the ability to thrive in a dynamic More ❯

Software Engineer – AI Startup – Up to 85k 🚀🧠 💰 Salary: £50,000 - £85,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 1/2 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used … and want to solve real-world problems with the latest in AI and LLMs, this role is for you. In this role, you’ll: 🔧 Build and ship high-impact software 🧠 Work on AI/LLM-powered automation tools used in production 🏗️ Help shape scalable systems and infrastructure 🌍 Work collectively across teams to push the product forward 💻 Be working end … adaptable and comfortable working across their stack ✅ Understand the working dynamics of a fast paced start-up If this role sounds like it could be of interest, apply now! Software Engineer – AI Startup – Up to 85k More ❯

Senior Software Engineer – AI Startup – Up to 120k 🚀🧠 💰 Salary: £70,000 - £120,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 1/2 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being … and want to solve real-world problems with the latest in AI and LLMs, this role is for you. In this role, you’ll: 🔧 Build and ship high-impact software 🧠 Work on AI/LLM-powered automation tools used in production 🏗️ Help shape scalable systems and infrastructure 🌍 Work collectively across teams to push the product forward 💻 Be working end … and comfortable working across their stack ✅ Understand the working dynamics of a fast paced start-up If this role sounds like it could be of interest, apply now! Senior Software Engineer – AI Startup – Up to 120k More ❯

Software Engineer - Python, Django, REST Are you passionate about sustainability and innovation? Join a cutting-edge London-based startup that’s revolutionizing how businesses achieve net zero. With £10 million in funding and a growing team of 10 talented engineers , this company is leading the charge in simplifying sustainability through technology. About the Role As a Software Engineer , you’ll be at the forefront of developing scalable solutions using Python , Django , and REST, helping businesses take meaningful steps toward reducing their carbon footprint. What You'll Do Design, build, and maintain robust web applications and services. Collaborate with a tight-knit, high-performing team to deliver impactful features. Contribute to solving challenging problems in … the sustainability space. What We're Looking For We’re seeking mid-level engineers with: 3+ years of experience in Python development. Knowledge of frameworks like Django is advantageous. Familiarity with cloud platforms such as Google Cloud Platform (GCP) or AWS (Amazon Web Services) . A proactive, problem-solving mindset and adaptability to a fast-paced environment. A genuine More ❯

Senior Software Engineer 🌍- Python, Django, REST, AWS&GCP - £80,000 - £95,000 Are you passionate about sustainability and innovation? Join a cutting-edge London-based startup that’s revolutionizing how businesses achieve net zero. With £10 million in funding and a growing team of 10 talented engineers , this company is leading the charge in simplifying sustainability through … technology. About the Role As a Software Engineer , you’ll be at the forefront of developing scalable solutions using Python , Django , and REST and more, helping businesses take meaningful steps toward reducing their carbon footprint. What You'll Do Design, build, and maintain robust web applications and services. Collaborate with a tight-knit, high-performing team to … deliver impactful features. Contribute to solving challenging problems in the sustainability space. What We're Looking For We’re seeking mid-level engineers with: 5+ year experience in Python development. No knowledge of frameworks like Django needed but would be advantageous Familiarity with cloud platforms such as Google Cloud Platform (GCP) or AWS (Amazon Web Services) A proactive, problem More ❯

Senior Software Engineer – AI Startup – Up to 120k ?? ?️ Location : London, flexible working arrangements, ideally 1/2 days in the office ? Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client is building an elite engineering team within the AI space. The platform is used globally and delivers high impact to customers. … you're ambitious and want to solve real-world problems with AI and LLMs, this role is for you. In this role, you will: Build and ship high-impact software Work on AI/LLM-powered automation tools used in production Help shape scalable systems and infrastructure Collaborate across teams to push the product forward Work end-to-end More ❯

A growing and transformational financial services firm is seeking a Senior Python Software Developer to play a key role in its technology and innovation strategy. The successful applicant will join our delivery-focused and rapidly expanding technology and transformation team. The candidate will enhance the firm's data-driven decision-making abilities by utilising the latest technologies and … AI tools used by the broader business and the software development functions. Ideal candidates will be ambitious, entrepreneurial, and energetic. They will be willing to absorb new knowledge and grow within a dynamic, high-performance team. Execute the technology and innovation strategy to support the business's strategic growth by employing AI tools to derive commercial insights across a … large set of structured and unstructured data and data sources. Enhance the existing technology ecosystem. Key Skills required: Python: Strong skills in Python programming. Ability to build applications from concept to production and demonstrate a comprehensive understanding of the project lifecycle SQL Proficiency (SQL, stored procedures, extraction). Microsoft Azure: Experience with Microsoft Azure and Microsoft Power Platform. More ❯

Flagship Strats Hire - Top Python Engineers – Market Leading Hedge Fund - Up To £400k tc One of the world's very best trading firms is seeking a flagship hire to join their front office strats team, to carry out a variety of business-critical development tasks. With a combination of data, research, technology, and trading expertise my client has shaped … challenges and grow rapidly. They operate in multiple languages and are the first trading firm of their kind to embrace open-source software. They are currently looking for a Python Specialist with Front Office experience and specific knowledge in Risk, Pricing, Volatility. A high-quality STEM degree alongside a passion to problem solve is also required. Alongside top tier More ❯

Bleeding edge quant hedge fund client who operate technologically at the top of the market are currently seeking an experienced Python Software Engineer/Developer. In this high performance computing team, you will be responsible for building automated software solutions which are used across the trading business. It is expected the successful candidate will be an … expert Python engineer with functional experience of how market connectivity works with the applications they are developing Strong colleague network within this environment to take your initial experience to an elite level. Ideally Computer Science Degree or similar discipline Good commercial experience in Python Software Engineering Working in a scaled, performance based software environment building … efficient, reliable/high-availability and fast applications An interest in learning Rust programming alongside Python Linux knowledge advantageous Strong interest in working for a top end, high performance software firm Great work environment, WFH/Hybrid opportunity. Excellent bonus culture for all and career scope. Salary can be £100,000-£200,000 plus huge bonus, market leading More ❯

Orbis is working with one of London’s most exciting and ambitious commodities trading firms who are looking to hire a number of new Staff Software Engineers with exceptional Python expertise to join their core engineering team. You will be working alongside some of the industry’s most talented Python Developers on a cutting-edge real-time … trading platform, partnering closely with trading and technology teams to deliver impactful, scalable software in a fast-paced, data-rich environment. Your key responsibilities will be: Lead the design and development of scalable backend systems using Python (and/or Go), contributing to a real-time trading platform. Collaborate with cross-functional teams to translate complex business needs … culture. Contribute to the long-term technical roadmap, balancing innovation with robust delivery in a rapidly changing environment. Successful applicants will have: Extensive experience developing production-grade systems in Python and working with distributed systems at a Trading Firm, Hedge Fund or similar. Excellent prior experience contributing to major technology/system architecture decisions A track record of technical More ❯