26 to 47 of 47 Senior Python Developer Jobs

Senior Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain … API specification Knowledge & Skills for this job Able to demonstrate commercial software development experience. Practical experience in system design, development, testing and operational stability. Deep knowledge and experience in Python and its ecosystem, patterns and pitfalls. Experience applying continuous delivery, test driven development and pair programming. Experience of working in an agile environment and an understanding of Scrum principles More ❯

lasting relationships. You'll be someone who is both comfortable working pro-actively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services … to organisations we work with. As a Senior Python Developer, you will lead BDO's strategic focus on developing Python-based solutions. Your mission is to design, build, and deploy innovative solutions that transform our internal processes and client services. You will be the technical authority for Python-based development, setting patterns, standards and best … practices. You'll be responsible for: Python Roadmap: Set the technical direction for Python-based development, evaluating tools and establishing frameworks. Development Standards: Define and adhere to internal development standards, ensuring quality, security and scalability. Mentorship: Mentor developers, enhancing their skills in Python through code reviews and knowledge sharing. Collaboration: Work with stakeholders to identify opportunities for More ❯

Que Technology Group, Inc., is seeking a motivated Senior Python Developer (SWE3) with the right knowledge, skills, and abilities to support a new cybersecurity initiative. You will work closely with a small team and mission stakeholders to capture requirements, create parsers for network protocols, develop fingerprints and signatures to identify suspicious and anomalous network activity, and deploy … and detecting/alerting based on network changes. Required Qualifications: Bachelor's degree in Computer Science with at least eight (8) years of relevant experience or equivalent. Proficiency with Python, C++, and Spark. Experience with Jupyter Notebooks, JIRA, Confluence, and Git/Gitlab. Understanding of ASDF and TCLD. Knowledge of XKEYSCORE/ABYSS fingerprints. Preferred Qualifications: Knowledge of customer More ❯

Python Developer - Hybrid (UK-wide or Bulgaria) Build Real Software from Day One You'll be delivering secure, scalable APIs for a global cybersecurity client-on meaningful, live projects used by the world's biggest organisations. Tackle Real Engineering Challenges From domain modelling and modernising legacy systems to building APIs from scratch, you'll solve technically challenging problems … databases (PostgreSQL) •Translating requirements into clean, maintainable code •Working with cloud platforms (AWS, Azure, or GCP) •Improving and evolving legacy systems What You'll Need •3-5 years of Python experience •At least 1 year with Django •Strong backend/API development skills •Familiarity with relational databases and cloud platforms •Confidence working independently and collaboratively Bonus Points •Docker experience … Google Meet) 2) First Interview - 30 mins (Hiring Manager) 3)Take-home Tech Test - No deadline 4)Final Interview - 60 mins (Panel) ️ How to Apply If you're a Python backend engineer who wants to build software that matters-let's talk. Just send your CV. No cover letter needed. More ❯

Senior Full Stack Developer/Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future … You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your More ❯

Senior Full Stack Developer/Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future … You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your More ❯

VP Python Developer Role | Trading Floor | Capital Markets London (Hybrid) VP Level - £150k Bonus Benefits Python Join a Global Leader in Capital Markets Technology. Are you a Python expert who has built quant trading platforms from the ground up? This is a rare opportunity to join a leading international capital markets organisation, renowned for its cutting … edge technology and fast-paced trading environment. You will take a pivotal role in designing and delivering a new quantitative development framework, shaping the Python ecosystem that underpins trading, pricing, and risk across the Front Office. The Role: You will: Lead the build of a brand-new Python-based quant development framework, owning its design, architecture, and tooling. … Partner closely with teams in London and New York to define the Python environment, toolset, and DevOps processes from the ground up. Collaborate with quantitative engineers, model developers, and traders, enabling agile delivery of advanced trading and risk tools. Solve complex engineering challenges, laying the foundation for next-generation research and trading platforms. Key Responsibilities: Build the core Python More ❯

Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for … development and working with modern data infrastructure. At Ask BOSCO® , we're on a mission to help brands spend smarter with our award-winning predictive analytics platform. As our Senior Backend Developer you won't just write code - you'll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data … your voice matters, your technical brilliance is valued, and your work directly influences product growth and innovation, we'd love to hear from you. The Role at a Glance: Senior Backend Developer Hybrid - Leeds HQ 1–2 Days per Week £70,000 - £90,000 DOE Plus Benefits: including a 4-day week – we work smarter so that we More ❯

Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for … development and working with modern data infrastructure. At Ask BOSCO® , we're on a mission to help brands spend smarter with our award-winning predictive analytics platform. As our Senior Backend Developer you won't just write code - you'll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data … your voice matters, your technical brilliance is valued, and your work directly influences product growth and innovation, we'd love to hear from you. The Role at a Glance: Senior Backend Developer Hybrid - Leeds HQ 1–2 Days per Week £70,000 - £90,000 DOE Plus Benefits: including a 4-day week – we work smarter so that we More ❯

is transforming market research. You will be at the forefront of innovation, shaping a product that allows researchers to analyze complex survey data instantly using natural language. As a senior Python developer, you will lead architecture and backend development, taking ownership of key features from concept to deployment. You will design and implement new AI-powered analysis … shape the technical roadmap, own performance and caching optimizations, and elevate the team by guiding and supporting junior developers through mentorship and code reviews. About you: Essential skills: Professional Python experience, including deep knowledge of FastAPI and async workflows. Proven ability to take ownership of features, lead development, and support junior engineers. A genuine love for writing code, demonstrated More ❯

We are looking for an experienced Senior Developer/Tech Lead specializing in Python to join our innovative team. The ideal candidate will possess a strong technical background and leadership skills, enabling them to drive development projects, mentor junior developers, and collaborate effectively across teams. You will be responsible for designing and implementing high-quality, scalable software … solutions. Key Responsibilities: Lead the design and development of complex applications using Core Python and web frameworks like Flask. Implement best practices in software development, including exception handling, data structures, and object-oriented programming (OOP). Collaborate with front-end developers using JavaScript, CSS, and HTML to create seamless user interfaces. Develop and optimize SQL databases, ensuring efficient data … through PKI and OIDC with OAuth 2.0 implementation. Automation: using Unit Testing and API Testing Qualifications: At least 5+ years of experience in software development, with a focus on Python and web frameworks. Strong understanding of front-end technologies including Vue.js, CSS, and HTML. Proven experience with databases and SQL, along with a solid grasp of data analysis and More ❯

Senior Backend Engineer - Python AWS £80,000-100,000 + share options Private medical + GP service 25+ days holiday Paid sabbaticals Flexible working Python, AWS Central London, hybrid (1 day per week) Profitable FinTech We're partnered with a profitable, VC-backed fintech scale-up that's helping thousands of small businesses across Europe thrive. They … the opportunity to take the lead on greenfield projects, define ways of working and deploy iteratively in a fast-moving, data-driven environment. Most of the codebase is in Python, however they've utilised the likes of Rust and Go in smaller pieces of work. Ideal Profile: Strong backend software engineering experience with relevance to their stack (e.g., Python … Engineering This is a high-impact opportunity to shape a major revenue channel at one of Europe's leading fintech innovators - with the freedom, tooling, and support to grow. Senior Backend Engineer - Python AWS Burns Sheehan Ltd will consider applications based only on skills and ability and will not discriminate on any grounds. More ❯

by the end of 2025. In the UK, Talan count 500 employees on several sites, the main being: London, Edinburgh and Leeds Job Description Talan is hiring a seasoned Python Developer to work with one of our top-tier investment banking clients in London, embedded within their Foreign Exchange technology team. This is an exciting opportunity to play … agile environment directly supporting trading and sales desks, with the opportunity to deliver innovative solutions that have real-time impact on business performance. Key Responsibilities: Design, develop, and enhance Python-based applications supporting FX trading workflows. Build robust, scalable, and performant tools for pricing, risk, analytics, and trade lifecycle. Collaborate closely with traders, quants, and other technologists to implement More ❯

Senior C++ Software Developer, Python - Financial/Banking Candidates will have 5+ years C++ experience (ideally more) and excellent knowledge of Python - ideally coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity and some Low Latency experience. Job Overview You will work with the Product, Infrastructure … develop software which handle large amount of TPS to drive a highly efficient technology used by several markets around the world. To be successful in this role as a Senior Software Engineer C++, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work in OOP and work with other members … 2+ years of experience in networking (UDP, Multicasting, TCP, etc...), messaging, and algorithms.• 2+ years of experience on Linux systems.• Good understanding of modern development best practices and methodologies• Python, including Pytest. • Knowledge of capital markets exchange connectivity on stocks (fixed income and derivatives is a plus), including exchange protocols such as FIX and SBE. • Most importantly, a drive More ❯

Java & Python CI/CD pipelines & containerisation AWS/Azure We are working with a leading client in the technology sector who are seeking several Senior Java Developers to join their growing team in London. Candidates MUST have experience with Java and Python programming languages. This is a hands-on role suited to an experienced Senior Developer with strong core Java expertise and a solid understanding of modern software engineering practices. You'll be contributing to the design and development of high performance, scalable systems while mentoring junior team members and playing a key role in technical decision-making. Key Requirements: Extensive experience in Java development plus experience with Python . Strong understanding More ❯

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

We are working with a leading client in the technology sector who are seeking several Senior Java Developers to join their growing team in London. Candidates MUST have experience with Java and Python programming languages. This is a hands-on role suited to an experienced Senior Developer with strong core Java expertise and a solid understanding … of high performance, scalable systems while mentoring junior team members and playing a key role in technical decision-making. Key Requirements: Extensive experience in Java development plus experience with Python . Strong understanding of microservices, distributed systems, and cloud technologies. Experience acting as a trusted advisor to key clients, helping shape their technology strategy aligned with business goals. Able More ❯

We are looking for a talented and experienced Market Data Python Developer for one of our global Investment Banking Clients. In this role, you will play a key part in developing and maintaining cutting-edge quantitative tools and infrastructure used by our front-office traders and other teams. Requirements Responsibilities: Be a self-starter and plan/schedule … of inclusivity and uphold company values. Qualifications: Bachelor's degree or equivalent with a quantitative emphasis in mathematics, engineering, or computer science. Minimum of 5 years of experience in Python development, with a strong understanding of object-oriented programming principles. Experience with pandas, numpy, matplotlib, scipy, and web frameworks like Flask or FastAPI is a plus. Good understanding of More ❯

scope is the development and maintenance of various Linux infrastructure tooling supporting the lithography application software. The local teams total over 30 engineers.The technologies required by this position are: Python, templating in ansible playbooks, network services on Linux, Bash, Jenkins, CCNA 1-2.Occasional travel to the Netherlands is possible as well. Responsibilities Participation in the design and development … code review process Documentation of designed software Test cases creation and execution for validating the developed tools Close interaction with all team members and customer representatives SKILLS Must have Python - 5+ years working experience Linux (Bash, Shell) - at least 4+ years of working experience Networking experience University degree Nice to have • Agile methodology• Previous exposure to Juniper environment (products More ❯

Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture click apply for full job More ❯

models in the application landscape - Develop new functionalities in R&D applications - Conduct code reviews - Implement best process practices Skills Must have 8+ years of experience Advanced knowledge of Python Knowledge of AI frameworks Advanced knowledge in at least one LLM Data Science expertise Nice to have Knowledge of multiple LLMs and their adoption in commercial projects More ❯

Hedge Fund - Senior C++ Quant Developer - Equities - Linux - Python - Data/Algos/Low latency Hedge Fund background essential C++ (Version 11 upwards), Linux, Python (nice to have). Trading systems experience - ideally experience working in the equities space. Ideally the technical has experience with algo implementation. Quantitative Developer - Equities Technology We are in search … of a Quantitative Developer to join our team who is passionate about designing, architecting, and implementing low latency C++ systems that are not only robust, resilient, and accurate, but also exceptionally fast. Our team works directly with the firm's central trading teams. By constructing and maintaining this high-performance infrastructure used by these teams, this developer will … with trading teams to gather requirements and develop solutions in a fast-paced environment Qualifications 5+ years of professional experience in a Front Office, financial services environment as a senior contributor 10+ years cumulative, professional experience Strong background in data structures, algorithms, and object-oriented programming in C++ Permanent role - Central London based - 5 days a week in the More ❯