eTrading Python Production Engineer

Join Talan as an eTrading Python Production Engineer in London, where you will play a crucial role in enhancing our electronic trading systems. You will be responsible for developing, deploying, and maintaining high-quality code that ensures the reliability and performance of our trading platforms. Collaborate with cross-functional teams to implement robust solutions that meet business requirements and optimize trading workflows.

Join our dynamic team at Talan as an eTrading Python Developer where you will play a crucial role in enhancing our trading systems. You will collaborate with a talented group of engineers and developers to deliver innovative solutions for our clients in the financial sector. Your expertise in Python programming will help us streamline our trading processes and improve system performance.

Location: London, HybridRole Type: 12 Month ContractRate: £700 - £1000 per dayWe are seeking a Senior KDB Developer to join our specialized team, dedicated to the enhancement and development of a high-performance eTrading Management Information (MI) and analytics platform. This client-facing role involves the handling of vast amounts of real-time and historical data, exceeding 3TB and encompassing over 5 billion records daily from diverse electronic trading venues, internal pricing sources, and execution systems.Our team serves as the primary source for MI, analytics, and quantitative research support to global stakeholders in risk management, quantitative analysis, trading, and sales. Furthermore, our platform facilitates regulatory reporting, substantial data processing workflows, and backtesting capabilities.This role exists within a high-performance, globally distributed environment managing hundreds of concurrent production services with multiple daily releases.

Location: London, HybridRole Type: 12 Month ContractRate: £700 - £800 per dayDelta Capita is on the lookout for an accomplished Senior eTrading Developer to become a vital part of our clients' Global Markets Technology division. This pivotal role is centered around the development and enhancement of low-latency components within an advanced electronic trading (eTrading) and eRisk platform, serving the needs of global FX and electronic execution operations.The team is dedicated to crafting high-performance, distributed systems that expertly manage liquidity, deliver real-time pricing, execute internal and external orders, and bolster algorithmic trading strategies. These systems are critical to the business and demand outstanding reliability, scalability, and throughput.As part of a global delivery team, you will contribute to next-generation initiatives aimed at elevating pricing quality, minimizing latency, enhancing algorithmic execution capabilities, and broadening eTrading functionality.

Join Vortexa, a dynamic and rapidly expanding technology firm, dedicated to bridging the significant information gap in the energy sector. Leveraging extensive satellite data combined with cutting-edge artificial intelligence, we provide a revolutionary perspective on global seaborne energy movements in real-time. Our mission is to enhance transparency and efficiency within energy markets, ultimately benefiting society at large.The Data Platform Team at Vortexa oversees all aspects of our data, spanning from raw satellite AIS/imaging data to unstructured textual and graphical maritime data, including fixtures, port lineups, and customs filings. We also manage highly structured datasets, such as price and supply-demand forecasts, alongside modeling global energy flows and tanker fleet distributions.Our team has developed a diverse array of procedural, statistical, and machine learning models that enable us to deliver the most accurate and comprehensive insights into energy flows. We take pride in applying advanced research to real-world challenges in a sustainable, robust, and maintainable manner, with our data quality rigorously evaluated by seasoned market and data analysts.As a Software Engineer, you will play a vital role in designing and developing the infrastructure and applications necessary for the design, deployment, and benchmarking of both existing and new pipelines and machine learning models. Collaborating with software engineers, data scientists, and market analysts, you will ensure the reliability and fault tolerance of every component in the team’s data pipelines, ensuring our systems maintain 100% uptime.

About AboundAt abound, we are revolutionizing the landscape of consumer lending across the UK and beyond. By leveraging cutting-edge AI and Open Banking data, we strive to make fair and affordable personal finance accessible to a wider audience. Unlike traditional lenders who heavily depend on credit scores, we analyze the complete financial picture of our customers—considering their spending patterns and repayment capabilities—to build a nuanced understanding of their unique financial situations.Our approach has proven successful at scale. We have facilitated over £1.3 billion in loans directly to customers while achieving exceptional credit performance—for every 10 defaults anticipated by the industry, we experience only 3. Remarkably, we reached profitability just 2.5 years post-launch.With backing from over £2 billion from prestigious investors including Citi, GSR Ventures, and Deutsche Bank, we are recognized as one of Europe’s fastest-growing fintech companies (Sifted, CNBC). As we expand into new markets and product lines, we are on the lookout for driven individuals eager to learn, take ownership, and grow alongside us.We are seeking a talented Senior Python Engineer to join our engineering team. In this role, you will collaborate closely with our Finance team to design and implement automation solutions that enhance our core financial operations. You will be responsible for translating business needs into robust, maintainable systems that increase accuracy and efficiency across critical workflows.This position requires a candidate who blends strong technical acumen with a desire to understand the business intricacies. You will be empowered to independently scope and execute changes, manage stakeholder expectations, and ensure every enhancement is durable. Your contributions will play a vital role in maintaining the smooth and scalable operation of our financial processes.We value engineers who take initiative, enjoy tackling complex challenges, and excel at clarifying ambiguous requirements. You will thrive in our environment if you are motivated by creating systems that deliver tangible business impact, can articulate technical concepts to non-technical partners, and take pride in producing high-quality, well-designed code.At abound, you will immerse yourself in a culture that champions autonomy, curiosity, and continuous improvement. You will engage with a modern Python-based tech stack, gain in-depth insights into how financial operations function in a rapidly growing lending business, and have the opportunity to enact significant technical changes in collaboration with experienced stakeholders.

Role overview Genomics England is looking for a Software Engineer with solid Python experience to help create software that drives genomics research and benefits patient care. The team combines engineers and scientists who work together to build scalable tools that advance the organization's mission. What you will do Develop and maintain software applications using Python for genomics-related projects. Collaborate with fellow engineers and scientists to design solutions that back both research and clinical goals. Contribute to technology projects aimed at improving patient outcomes. Location This role is based in London.

We are looking for a Senior Staff Python Software Engineer to join our dynamic team at abound. In this role, you'll leverage your expertise in Python to design, develop, and maintain high-quality software solutions that meet our clients' needs. You'll work closely with cross-functional teams to deliver innovative products that drive our mission forward.

Our MissionBe part of a revolution in paid search intelligence.At Adthena, we are an award-winning search intelligence platform that leverages patented AI technology and a skilled team to empower brands, marketers, and agencies to excel in their competitive environments. Our innovative solutions, including Whole Market View, Smart Monitor, and Local View, provide clients with critical insights to optimize their spending, boost ROI, and maintain a competitive edge.With a trusted client roster that includes global brands like Citibank, L’Oréal, and Volvo, and supported by Updata Partners, we have been at the forefront of search intelligence since our inception in 2012.In 2025, Adthena achieved remarkable recognition, winning 8 prestigious search industry awards, including Best AI Search Software Solution at the US Search Awards, Best Search Software Tool at the European Search Awards, and Best Software Innovation at the Global Search Awards.Are you ready to make a difference in an industry-leading company? Join us on this journey!Why Join Us?We offer the perfect blend of stability and innovation, combining the reliability of a well-established company with the dynamic environment of a rapidly growing tech organization.If you have been wary of typical tech companies due to concerns about disorganization, instability, or unpredictability, Adthena is your solution.Experience a smaller company environment that fosters autonomy, minimizes bureaucracy, and accelerates your growth.Here’s what we offer:A Thriving Engineering CulturePositive Work Environment: Our quarterly surveys reveal a 93% average approval rating for our company culture, with an overall eNPS of 27.Award-Winning Solutions: Recognized as the Best AI Search Software Innovation at the US 2025 Search Awards.Equity Opportunities: Our employees make significant contributions, and as we grow, they share in the success.Flexible Time Off: Enjoy a trust-based vacation policy allowing you to take time off as needed.Remote-First Approach: 52% of our team works fully remotely, with others opting for hybrid roles at our three geographical hubs (London, Austin, Sydney).Flexible Work Arrangements: Work in a way that suits you best, with full autonomy over your daily schedule.

Landytech is dedicated to transforming how investment managers, asset owners, and their advisors access essential asset information. Utilizing Sesame, our cutting-edge investment reporting platform, we empower clients across more than 15 countries to make well-informed investment choices and gain insights more swiftly.As a rapidly growing company, we are thrilled to have secured $12 million in Series B funding as of January 2023. In just four years, we've expanded from two co-founders to a vibrant team of over 100 employees, with offices located in both London and Paris. At Landytech, we embrace diversity as a core strength, bringing together a team from over 15 different countries and speaking 14 languages.Role OverviewWe are in search of a skilled Software Engineer to join our dynamic team. In this role, you will design and maintain services and tools, primarily developed in Python, that process and disseminate financial metrics, thereby significantly enhancing how our clients access and utilize vital financial data.This position offers an exceptional opportunity for engineers with solid foundational skills to further develop their expertise in a finance-centric environment, leveraging modern technologies. We welcome candidates at any experience level—whether you are just starting your career and eager to learn, or a seasoned engineer looking for hands-on technical work within the fintech sector.

Join Our Innovative Team At Octopus Legacy, we're proud to be one of the UK's most rapidly expanding tech firms, dedicated to reshaping an age-old industry. Our mission is to support individuals and organizations in navigating and finding solace after the loss of loved ones. As we strive to become a household name, we recognize that our journey towards transformation requires the right talent. We're seeking proactive, solution-oriented individuals who are passionate about making a difference. Your Role We are in search of a skilled Software Engineer proficient in PHP, with a working knowledge of Python, who is eager to make a significant impact. You will be responsible for enhancing and maintaining our existing PHP/Laravel applications, which power key products including our website and internal tools, while also contributing to new Python-based initiatives as our technological landscape evolves. Your role will encompass full-stack development, delivering tangible enhancements that our users will appreciate, ensuring our platforms remain secure and efficient. You will manage a backlog of substantial changes that will elevate our products and enrich user experiences, while also expanding your expertise in Python. This position offers a dynamic work environment with a variety of challenges each week, allowing you to directly influence our customers' experiences. Key Responsibilities Enhance and maintain existing PHP/Laravel applications, focusing on bug fixes, performance enhancements, and security improvements. Develop and contribute to Python projects, including new services and internal integrations, as our technology evolves. Assist with platform security and compliance efforts, including vulnerability remediation and system hardening. Diagnose and resolve production issues, ensuring swift and effective solutions. Collaborate with the broader engineering team through code reviews and agile ceremonies, contributing to our engineering standards. Lead small-to-medium projects from inception to completion, implementing impactful changes across our tools and products. Who You Are Extensive experience with PHP, preferably within the Laravel framework. Proficient in Python, with experience in scripting, APIs, or frameworks such as Django or FastAPI. Strong understanding of relational databases like PostgreSQL and the ability to write efficient queries. Excellent problem-solving skills and a proactive approach to work. Ability to work collaboratively in a fast-paced, team-oriented environment.

Role OverviewWe are seeking a talented Software Engineer specializing in Python to join our team at cfpenergy. In this pivotal role, you will be instrumental in designing, developing, and scaling our data infrastructure, which is crucial for driving our products and informed decision-making processes. You will help define the flow of data throughout the organization, ensuring it is efficiently ingested, processed, and transformed into actionable insights. Collaborating with developers, analysts, and trading teams, you will ensure our data is not only reliable and accessible but also future-proof. This position seamlessly blends hands-on engineering with architectural insight, allowing you to participate in design discussions, enhance data pipelines, and guide our technical strategy. We are looking for someone who takes initiative, relishes solving intricate problems, and can work collaboratively across various systems and teams to create meaningful impact.Key ResponsibilitiesArchitect, develop, and uphold robust applications within a domain-driven ecosystem.Engage in architectural dialogues and influence the long-term technical strategy.Manage tasks from requirements gathering to completion, showcasing creativity and adhering to coding standards.Create well-structured data models and maintain comprehensive documentation in collaboration with your team’s data engineers.Work closely with data engineers, developers, analysts, and trading teams to gather requirements and deliver dependable, well-architected data solutions.Identify and implement enhancements to performance, automation of manual tasks, and improvements in data quality and reliability across systems.Core Skills & ExperiencesCollaborative mindset: We seek individuals who are not only adept but also enjoyable to collaborate with, promoting a positive team culture through open communication.Analytical thinking: Accuracy and performance are central to our operations; your curiosity, structured approach, and meticulous attention to detail will drive every challenge.Problem-solving skills: You should be comfortable navigating complex systems to diagnose root causes while maintaining composure under pressure, striving for elegant, sustainable solutions.Effective communication: Your ability to articulate complex technical concepts clearly will bridge the gap between technical and non-technical teams, ensuring alignment.

Exciting News! We're thrilled to announce that we've successfully raised $60 million in our Series B funding round, achieving a valuation of $685 million. Learn more about this significant milestone here. At Lawhive, our mission is clear: to democratize access to legal services for everyone. The legal landscape is often hindered by outdated technologies and practices, which is why we've fundamentally reimagined the model, leveraging our proprietary AI operating system as the foundation.As a regulated law firm, Lawhive integrates cutting-edge AI technology to enhance legal expertise and revolutionize the practice of law, delivering outstanding outcomes for both clients and legal professionals.Our innovation hub, Lawhive Labs, embodies this vision. Here, we unite elite engineers, designers, AI specialists, and legal experts from across the globe to shape the future of law.With the backing of prestigious investors like Google Ventures, Balderton Capital, and TQ Ventures, we are poised for international expansion following our recent funding success. Having launched in the US in 2025, we are only at the beginning of our journey.Engineering at LawhiveOur engineering team of 40 talented individuals is dedicated to architecting, developing, and maintaining Lawhive's platform, which is trusted by numerous legal professionals daily across the UK, US, and beyond.In the coming year, we are committed to addressing numerous challenges, particularly:Enhancing the user experience for AI interactions within legal practice, moving beyond conventional chat interfaces to pioneering new methods of human-machine engagement.Integrating modularity and international adaptability into our platform as we build the world’s first global consumer law firm.Our approach to legal services is holistic; we are not just developing software, we are an AI-driven law firm.

Location: Hybrid in central London (3 days onsite per week) Contract Type: Contract Role overview minderacraft seeks a Senior Python Engineer to support the scaling and enhancement of the AI Stylist, a live AI-powered recommendation system for web and mobile users. As the product enters a rapid growth phase, the team faces a substantial backlog of features and improvements. This contract role sits within the Recommendations team, focusing on integrating advanced AI capabilities and blending conversational interfaces with recommendation logic. The work directly affects the quality, relevance, and reliability of a customer-facing system in production. What you will do Develop and refine AI-driven services using Python Design and implement evaluation frameworks for large language model (LLM) systems Enhance output quality through structured evaluations, beyond just code changes Apply techniques such as LLM-as-a-Judge to assess recommendations and responses Manage and iterate on non-deterministic systems, using real-world performance data Integrate AI features into a broader platform and API ecosystem Contribute to production readiness, focusing on reliability, observability, and performance metrics Collaborate closely with data scientists on prompt engineering, model selection, and evaluation strategies Requirements Core experience Strong Python engineering background in production environments Experience building AI-enabled applications, especially recommendation or conversational systems Direct experience with evaluation frameworks for LLM or AI systems Understanding of how AI systems differ from traditional deterministic software Ability to design effective evaluations and drive ongoing system improvement Track record of collaborating in cross-functional teams with engineering, data, and product stakeholders Nice to have Familiarity with Azure AI services or similar platforms Knowledge of OpenAI or comparable SDKs Exposure to infrastructure and distributed systems Experience with tools like Terraform or Kafka Benefits Competitive day rate

Caxton Associates, established in 1983, is a global trading and investment firm with offices in London, New York, Singapore, Monaco, Dubai, and Bengaluru. The company manages both client and proprietary capital, offering a variety of investment products for different investor needs. Caxton operates with a multi-portfolio manager approach and specializes in discretionary global macro investing, applying expertise across asset classes and markets. Role overview The Software Development team at Caxton Associates in London is looking for a Python LLM Engineer. This team builds scalable, reusable, and efficient distributed services and applications that support users across the firm. What you will do Create and deploy Python workflows that use large language models (LLMs), integrating them into current business processes. Implement retrieval-augmented generation (RAG) and related architectures to ensure LLM outputs are grounded in proprietary data. Design secure data integrations by connecting models to internal knowledge bases, APIs, and document repositories. Automate research and operational tasks to improve efficiency and quality within the firm. Develop and maintain reliable data pipelines for document parsing, enrichment, and structured data extraction. Write maintainable, testable Python code to support scalable AI services in production environments. Run pilots and proofs of concept to showcase value and establish best practices for AI adoption at Caxton. Troubleshoot and enhance model performance, retrieval accuracy, and infrastructure reliability. Stay up to date with advances in LLMs, prompt engineering, and applied machine learning; evaluate and prototype new approaches. Location This role is based in London, England, United Kingdom.

Join us as a Software Engineer at Wehrtyou, where the code you develop is pivotal to our business operations. Our engineering team is tasked with creating and maintaining vital technology and infrastructure that underpins our trading success. In this dynamic role, you will collaborate closely with fellow engineers who design trading algorithms and oversee trading activities in an incredibly fast-paced, real-time environment. We seek innovative programmers who are passionate about coding, enjoy tackling challenges, and thrive in a collaborative and open company culture.ProfileIn your leisure time, you engage in coding, tinkering, reading, exploring, and possess an unwavering curiosity about computer technology — you’ll find camaraderie with like-minded individuals here.You are adept at working both independently and as part of a team, with a demonstrated ability to quickly analyze and resolve problems.You can dissect code, understand its functionality, and propose enhancements.You can articulate software designs at various levels—from high-level abstractions to detailed algorithms.You enjoy collaborating with colleagues who inspire you to improve and excel in your craft.

Corgi develops insurance products for technology startups using AI, Django, and Stripe. Backed by $108M in funding and licensed as a carrier, the company is expanding throughout the UK and EU. The engineering team builds new ways to deliver insurance, focusing on rapid product development and real-world impact. Role overview This Python Engineer role is based in London and suits builders who enjoy taking ideas from concept to launch. The team values independent thinkers who have shipped products, whether side projects, weekend experiments, or anything with real users. Engineers here often work autonomously and see projects through from start to finish. What we look for History of independently building and launching projects Ability to work across the stack and learn quickly Delivers results in short cycles, progress is measured in hours and days Strong opinions, but open to better approaches Focus on outcomes, not titles; low-ego attitude Work culture Quick decision-making; perfection is not required Frequent product launches and improvements Ship-and-iterate approach, rather than long review cycles High energy during launches, steady pace between projects Transparent, public-first decision-making Internal competition helps raise standards This position fits those who want to make a real impact, not those seeking to coast. Behaviors that won’t fit Avoiding accountability or engaging in office politics Taking feedback personally instead of using it to improve Adding unnecessary complexity Missing agreed deadlines How to apply Send links to your GitHub, personal site, live projects, or anything you’ve built and launched Resumes are optional Email applications to: sergio@corgi.com If you cannot show evidence of shipped work, this role is unlikely to be a fit Location and compensation London-based (on-site or hybrid options) Base salary: £75,000 to £140,000, plus equity Salary depends on shipping ability, not job title

Join Our Team as a Full Stack Java/Python Engineer!We are seeking a talented Full Stack Java/Python Engineer for an exciting 6-month contract starting as soon as possible.Work Schedule: 2 days a week in our London office.Key Responsibilities:Leverage your extensive commercial software development experience, demonstrating a strong command of Java and Spring Boot, while crafting robust end-to-end full stack applications encompassing frontend, backend, and APIs.Utilize your proficiency in Python for agent services, orchestration, and LLM integrations.Implement modern frontend frameworks, such as React or Typescript, to deliver high-quality user experiences.Engage with cloud technologies and containerization (AWS/GCP/Azure, Docker), with a preference for candidates with Kubernetes experience.Handle data and retrieval mechanisms, including Postgres/NoSQL, vector databases, embeddings, and semantic search.Collaborate effectively in an agile development environment.Communicate technical challenges and influence decisions within the team, ensuring stakeholder satisfaction.Exhibit a strong understanding of engineering best practices, such as TDD, SOLID principles, and XP methodologies.Our Commitment to Diversity:We are proud to be an equal opportunity employer and encourage applications from all qualified candidates. We actively promote inclusivity and welcome applications from women, ethnic minorities, and individuals with disabilities. We consider all flexible working arrangements, tailored to the needs of the role, and strive to accommodate reasonable adjustments.

Join Nevis: Pioneering AI Wealth ManagementAt Nevis, we're on a mission to revolutionize wealth management through cutting-edge AI technology. Our innovative platform is designed to empower financial advisors, enabling them to enhance client relationships while our AI automates time-consuming workflows. As we build the future of wealth management, we have secured $40 million in funding from top-tier investors including Sequoia Capital, ICONIQ, and Ribbit, and are led by a talented team of ex-Revolut executives.Your Impact as a Software Engineer (Python)We are seeking a talented Software Engineer (Python) who is passionate about developing robust AI-driven platforms. In this key role, you will design and implement Python-based systems and services that drive intelligent workflows for leading financial firms. You will work on applied AI, data pipelines, model execution frameworks, and backend components that support our innovative AI products.If you thrive in a fast-paced environment, love creating production-grade AI solutions, and are eager to see your ideas come to life quickly, Nevis is the place for you. You'll join a world-class engineering team dedicated to building scalable AI systems.Your ResponsibilitiesDesign and enhance Nevis’ Python-based AI platform, enabling core workflows and agentic automation.Develop model orchestration, data processing pipelines, and execution runtimes for our applied AI features.Create scalable APIs and services that facilitate rapid development and deployment of AI systems.Architect systems for model inference, prompt execution, and multi-step agent reasoning.Maintain high engineering standards through clean code practices and CI/CD workflows.Collaborate with AI engineers, product managers, and designers to deliver impactful features used by thousands.Take ownership of greenfield AI platform components, from architecture to production.Engage in design and code reviews that shape Nevis’ technical future.

At Suade, we are pioneering cutting-edge regulatory technology designed to avert future financial crises. Our success hinges on the collaborative efforts of our engineers and domain experts, who work together to transform complex financial and regulatory concepts into robust code. As a RegTech Engineer, you will play a vital role in driving the continuous growth of our business.This position is ideal for seasoned software engineers who have a passion for structuring and solving real-world challenges through technology. If you possess an eagerness to learn about finance, a strong analytical mindset, and enjoy collaborating with non-technical teams to convert their insights into functional code, we would love to connect with you.Please note that we cannot provide visa sponsorship for this role. Applications from candidates requiring visa sponsorship will not be considered.Suade is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without bias.