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Salary:Circa £65k+ Up to 15%BonusSponsorship:Unfortunately, we are unable to offer sponsorship for this role Ifyou'rea Principal Software Engineer, who enjoys architecting complex systems, owning technical decisions, and crafting Python-powered solutions that mak. Title:Principal Software Engineer

We’re hiring a Senior Software Engineer (Python) - Trading Systems to own and evolve a production options trading system. Collaborate directly with the founder and engineering team on architecture and roadmap. Python experience; you’ve shipped and owned production systems.

Senior Python Software Engineer Circa £56,000 + up to 15% bonus | Hybrid (2 days per week in Oxford)The software you'll work on is business critical. Due to progression, this role exists to replace a senior engineer within a well-established software company operating in the highly regulated energy

A leading tech company seeks an Embedded Software Test Engineer to enhance their Software Test organization. The ideal candidate holds a degree in Electronic & Electrical Engineering or a related field and possesses solid experience in embedded software and test automation. This role involves develo

Acting senior engineer within the team mentor and drive practice across junior engineers in the team, as well as researchers / data scientists as they prototype solutions. Formal training or certification on software engineering concepts with applied Full stack development experience. We have an exc

Travelers Software Engineering team enables a seamless customer experience through technology solutions. Research and apply knowledge of current industry trends and techniques to formulate solutions for software engineering problems. You will play a critical role in growing and transforming our Tech

Are you a passionate Python engineer who thrives on building scalable, high-quality software? We’re working with a multi-award-winning digital agency, recognised as one of the Sunday Times Best Places to Work, that’s looking for a Senior Software Engineer (Python) to help shape the next generati

Are you a software engineer who thrives on building robust, scalable products with a strong foundation in mathematics and analytics? We’re specifically looking for an engineer—not a data scientist—to join ScanmarQED as a Senior Python Software Engineer and play a key role in developing the cor

Candidates will be proficient in software design focused on a cross‑language REST based n‑tier architecture and executed using agile methodologies (Scrum, Test Driven Development, unit/integration testing, pair programming, etc. Design and develop new features within existing Python services; cr

As a Lead Software Engineer in the VPC Network organization, you will leverage your engineering expertise to build and deliver secure, stable, and scalable technology products. Design and implement components of JPMC-VPC, including control plane, data plane, software gateways, load balancers, and IP

Drive communities of practice across Software Engineering to promote new and leading-edge technologies. Formal training or certification in software engineering concepts. Lead Software Engineer in the Prime Financial Services Data & Analytics team, you will play a pivotal role in designing and deliv

Python Software Engineer - Observability Engineering - Quant Research. Python backend engineering experience. Strong problem-solving skills and the ability to collaborate across engineering teams.

Cloud / Platform Engineering experience (using extensive Python) will be considered. For 20 years, CWAN has helped thousands of organizations make the most of investment portfolio data with cloud-native software and client‑centric servicing. The Platform Engineering team develops and supports CWAN

You have strong Python backend software engineering skills. Apply now to find out more about this Backend Software Engineer / Developer (Python FastAPI Data Azure) opportunity. Backend Software Engineer / Developer (Python FastAPI SQL IaC) London to £95k.

Software Engineer, Python at DRW – London. In this role, you will be collaborating with people across the firm to provide cutting-edge technology solutions that expand our existing trading platform, all while promoting software engineering best practices. Up-to-date knowledge of the Python ecosyst

Software Engineers on the Prediction Markets Desk will build systems that take the desk from idea to production trading, including real-time pricing input pipelines, middle office, cross-venue reconciliation, and risk. A minimum of 2+ years' experience in Python, with the ability to work comfortably

Join us and take your software engineering career to new heights. As a Lead Software Engineer in the Markets Technology team, you will design and deliver secure, stable, and scalable technology solutions that support our business objectives. Formal training or certification on software engineering c

As a Lead Software Engineer at JPMorgan Chase within the Equities LOB, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Leads communities of practice across Software Engineering to dr

You will work with line of business software developers to understand business use cases and problems and be responsible for the full pipeline of software delivery. Leads communities of practice across Software Engineering to drive awareness and use of new and leading-edge technologies. As a Lead So

Senior AI Python Software Engineer (Perm, UK). Senior Python Software Engineer. Whether you are a Senior Engineer, Tech Lead, or DevOps Engineer, you will collaborate with distributed teams, leveraging cutting-edge technologies to build secure, high-performance applications.

Principal Software Engineer (Python, AI). Staff or Principal Engineer level in a sizeable engineering organization and can point to specific platform decisions — in production today — that they own. Mentor and stretch senior and staff engineers, building technical leadership depth across the org

A leading energy company is looking for a Senior Software Engineer to join their team in London. In this role, you will design and develop software solutions that support critical systems aimed at achieving Net Zero by 2050. You will work in a flexible environment, ensuring code quality and mentorin

Collaborate with traders, researchers, software engineers, and support engineers elsewhere within the organization. Work as part of our team of global Software Engineers embedded in our Global Delta One business, working on its automated trading platform. Strong preference for experience developing

A leading financial services firm is seeking an experienced Lead Software Engineer to join their Equities team in London. You will lead software development, collaborate with stakeholders, and ensure the delivery of high-quality technology solutions. The ideal candidate will have strong Python skill

The Senior Software Engineer will be a key contributor to full lifecycle software development, focusing on data management\workflows, infrastructure as code, and CICD pipelines. The Python Developer will be instrumental in building and maintaining our Python applications. Develop and maintain Python

We are looking for an experienced Senior Software Engineer with a strong background in Python development and expertise in AWS. Strong hands‑on experience with modern Python development (type hinting, unit/integration testing with pytest, object-oriented software design, applying Python frameworks

Our Software Engineers work across the technical stack, designing and implementing the solutions that enable the development of new applications by our Product Engineers. Software Engineer (100% Backend, Python & AWS). As a Software Engineer, you will focus on building the shared platform layer that

The ideal candidate will have at least 2 years of software development experience, proficient in Python, SQL, and Git. Responsibilities include creating React applications, communicating project status, and working on software engineering projects as part of a team. A global automotive insights firm

Python Software Engineer, Trading Platform. Software Engineer to join a newly created team responsible for designing and developing tools and infrastructure used by Traders and Quantitative Researchers. In this role, you will be collaborating with people across the firm to provide cutting-edge techn

A tech-for-good startup in the UK seeks a Senior Software Engineer to enhance clean transport technology. You will work closely with the CTO across the full stack using Python and React, owning backend systems and contributing to platform scaling.

Software Engineer / Developer (AWS, Python, Terraform). Modern cloud and engineering practices. Highly skilled, clearance‑holding engineering teams.

A leading betting exchange company in Greater London is seeking a Mid-Level Software Engineer to design and maintain core services. Candidates should have over 4 years of experience with Python or a compiled language, strong communication skills, and a passion for technology. The role involves colla

Am elite proprietary trading firm is seeking an experienced Python Software Engineer to join a growing engineering team focused on building large-scale data and research platforms that underpin systematic investment research. Python Software Engineer – Data & Research Platforms. If you are a Pytho

What you’ll do:- Take the lead in developing the tools, microservices and infrastructure for our pricing and underwriting projects- Work in a dynamic team of engineers within the Pricing Domain, providing technical guidance, mentorship, and support- Collaborate closely with product managers and ou

Python Software Engineer – High-Frequency Trading. We're working with a high‑frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. As a Python Software Engineer, you’ll collaborate with traders, quantitative researchers, and other developer

Python engineering, ideally building AI platforms, ML infrastructure, or applied AI products. Deep expertise in Python, asynchronous programming, system design, and backend engineering fundamentals. Maintain high engineering standards through clean code, testing, observability, and CI/CD.

My client is looking for an experienced Python Software Engineer to join their rapidly expanding development team, leveraging Python to streamline and automate critical processes. Job Title: Python Software Engineer. Exceptional professional growth opportunities in a tech-focused company, allowing y

As we embark on the next phase of our growth, we're looking for a Senior Software Engineer to join our high-leverage team. Courses, books, software - if it helps you in your role, we'll help you get it. Direct Agentic Workflows: Use agentic tools to navigate, plan, refactor, and ship features across

You have demonstrable experience as a senior software developer or engineer with a focus on Python (4+ years). Senior Software Engineer (Python). You hold an undergraduate degree or can demonstrate equivalent knowledge in Computer Science, Software Engineering, Logic, Applied Statistics, Actuarial S

Leads communities of practice across Software Engineering to drive awareness and use of new and leading-edge technologies. As a Lead Software Engineer at JPMorgan Chase within the [insert LOB or sub LOB], youare an integral part of an agile team that works to enhance, build, and deliver trusted mark

Senior Software Engineer / Technical Lead – Research Platform (Rust + Python). In-depth discussions with our engineers about your experience building data platforms, leading technical projects, and mentoring engineers. We're building out our research platform team and looking for a Senior Software

You’ll have real ownership from an engineering perspective, shipping features that are used daily by Ops teams. Solid experience with Python in a web application context. Strong engineering principles & practices: design patterns, testing, clean code and a good reviewer.

SQCE - Senior Software Engineer (Python). ClearRoute is an engineering consultancy bridging Quality Engineering, Cloud Platforms and Developer Experience. We’re not just making better software.

A global defence technology consultancy is looking for a Senior Software Engineer based in Southampton. The role requires proficiency in Python, Docker, and AWS, with strong experience in designing and implementing software components. You will take ownership of software work packages, with responsi

A leading travel management company in London is seeking a Software Engineer to join their team. The role involves developing a travel-related web product using Python and React, integrating with third-party APIs, and contributing to system architecture design. The ideal candidate possesses a strong

A leading technology firm in the utilities sector is seeking a Mid-Level Software Engineer to work on a cloud-native platform that integrates software, hardware, and distributed energy assets. The role focuses on developing scalable backend services with Python and AWS, alongside building APIs, and