Software Engineer - Python at cfpenergy | London

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.

The RoleJoin the dynamic team at Brook Green Supply, an independent B2B energy supply company, as an Energy Trading Analyst. This is an exceptional opportunity for a motivated and commercially astute individual to contribute significantly to the growth and transformation of our trading desk, which is at the forefront of the UK energy market.In this pivotal role within the Trading Analytics team, you will support portfolio engagement, focusing on enhancing hedging performance and analytical capabilities across the UK power and gas sectors. This high-visibility position directly influences trading performance by delivering actionable insights and facilitating market analysis for both internal and external stakeholders.Additionally, you will provide commercial support for structured energy products, Power Purchase Agreements (PPAs), and risk management processes.Responsibilities· Analyze market fundamentals and real-time data to identify trading opportunities and inform strategies for hedging supply and generation exposures.· Collaborate closely with traders and senior stakeholders to provide insights on market views, trade recommendations, and hedging performance.· Generate valuable insights through written reports, presentations, dashboards, and other visualizations.· Assist in the development of fundamental and quantitative models for price forecasting, risk analysis, and commercial decision-making across power and gas trading.· Work alongside the technology team to enhance data architecture and analytics infrastructure.About You· Strong analytical and problem-solving skills with the ability to convey complex concepts clearly.· Proven understanding of energy markets and energy system fundamentals.· Excellent interpersonal skills and a collaborative mindset.· Highly self-motivated, able to take initiative in a fast-paced environment.

Role Overview:Join the dynamic team at Brook Green Supply, a leading independent B2B energy supply company based in London. As a Senior Credit Risk Analyst, you will be part of a seasoned team committed to fostering growth and success within the energy sector. This role presents an excellent opportunity for a motivated and adaptable professional looking to advance their career in an innovative environment.In this pivotal position within the Credit Risk team under the Commercial department, you will collaborate with internal account managers, coordinators, and trading desk members, as well as external clients and credit stakeholders. Your focus will be on evaluating data and contracts, managing counterparty credit risks associated with physical power and gas supply, and supporting sustainable business growth through effective credit management practices.Your responsibilities will include managing complex credit exposures and collateral arrangements, and shaping reporting and risk-mitigation frameworks to enhance overall operational efficiency.

The RoleBrook Green Supply is a dynamic and independent B2B energy supply company. Joining our seasoned team offers an exciting opportunity for a motivated and business-oriented professional to significantly impact the development and growth of our trading desk.We are on the lookout for a skilled Data Engineer to become part of our expanding data engineering team. This position is ideal for individuals who are enthusiastic about creating robust and scalable data infrastructure through open-source technologies. You will thrive in a culture that values innovation, technical expertise, and collaborative problem-solving.Key ResponsibilitiesDesign, develop, and maintain data ingestion pipelines utilizing open-source frameworks and tools.Construct and enhance ETL/ELT processes to accommodate a range of data processing requirements.Create data models and schemas that align with analytics, business intelligence, and product needs.Oversee, troubleshoot, and improve the performance and reliability of data pipelines.Engage with stakeholders, analysts, and the product team to grasp data requirements.Implement data quality checks and validation processes to uphold data integrity.Contribute to architectural decisions and assist in technical roadmap planning.Analytical and Soft Skills:Excellent analytical abilities with a keen attention to detail.Strong problem-solving and debugging capabilities.Ability to work independently and manage competing priorities effectively.Exceptional communication skills, capable of conveying technical concepts to non-technical stakeholders.Experience in agile development environments.

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.

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.

About the Rolecfpenergy is an innovative energy provider based in London, dedicated to developing its own independent Microsoft 365 and Azure infrastructure. Our IT department is a dynamic and efficient team responsible for managing the complete technology landscape, encompassing end-user support, cloud identity management, device oversight, and security measures.In the role of IT Support Analyst (Level 1), you will serve as the initial point of contact for all internal technology inquiries, delivering efficient and professional support for hardware, software, network connectivity, and user account management. Collaborating closely with the Head of IT Infrastructure, you will gain valuable hands-on experience with Azure AD/Entra ID, Microsoft Intune, Teams, SharePoint, and the wider Microsoft 365 suite.This position presents an outstanding opportunity for a driven individual seeking to establish a career in enterprise IT within a vibrant and fast-paced energy sector.

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.

Join cfpenergy as a vibrant PPA Originator and play a pivotal role in expanding our footprint in the rapidly evolving renewable energy sector. We are looking for a commercially astute individual to spearhead growth in Power Purchase Agreement (PPA) transactions and enhance our market position.Key Responsibilities:Drive the UK trading initiatives by originating innovative transactions in the renewable power markets.Enhance our PPA offtake market presence by effectively managing and cultivating new and existing relationships.Lead negotiations and structuring efforts for PPA contracts while overseeing post-transaction relationships.Ensure compliance with internal and external standards across all transactions.Collaborate with traders and the commercial team to develop cutting-edge products and solutions.Stay informed on market trends and regulatory changes to maintain competitive advantage.Contribute to the strategic direction of the origination function as part of the broader business strategy.Support the proactive growth strategy for BGS PPA.Work collaboratively to achieve team objectives.Success metrics include revenue generation, pipeline growth, client onboarding, and customer satisfaction.

Why This Role is ImportantAt cfpenergy, we pride ourselves as an independent B2B energy supply firm dedicated to delivering innovative risk management and energy supply solutions tailored for the UK's Industrial and Commercial (I&C) sector. Our mission is to revolutionize the I&C energy landscape through expert consultation and robust risk management services. Our highly skilled team, with extensive experience in the energy sector, is eager to offer an exceptional career opportunity to a motivated and proactive individual. We value personal development and progression in line with our rapid business growth and success. In this pivotal role, you will address the intricate and varied needs of our expanding portfolio of industrial and commercial clients. Your responsibilities will heavily involve analysis and reconciliation, ensuring all charges are accurately computed and that we possess the necessary data to guide our actions effectively. Your Key ResponsibilitiesYou will oversee the seamless and accurate execution of our billing processes while identifying areas for improvement to foster the growth of our commercial operations.• Validate industry charges and ensure correct application to cfpenergy invoices as appropriate.• Generate reports and provide regular updates on billing performance and exceptions.• Address billing inquiries, discrepancies, and data mismatches promptly and efficiently.• Assist in developing and refining resilient billing processes and controls.• Offer subject matter expertise to commercial and Customer Relations teams as needed.• Support system testing and process enhancements in alignment with industry and system changes. About YouYou possess strong analytical skills and a keen eye for detail, coupled with a desire to learn and enhance your skills. You enjoy tackling problems, taking ownership of your responsibilities, and seeking opportunities to streamline and optimize processes. Your qualifications include:• Exceptional attention to detail and a proactive, inquisitive mindset.• Strong problem-solving abilities and initiative to enhance business processes.• Capability to manage your own workload with minimal supervision.• Excellent communication skills with confidence in engaging a diverse range of stakeholders.• Proficiency in Excel and experience handling large datasets.

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.

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 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.

Join Edra: Pioneering Solutions in Enterprise AIAt Edra, we're tackling one of the most challenging issues in enterprise AI: while AI models are inherently generic, company processes are uniquely specific. Our mission is to develop AI agents that comprehend how these processes operate and effectively manage their tasks.As a Series A startup, we are proudly supported by Sequoia and other prestigious venture capital firms. With our teams expanding in New York and London, we are a highly technical group comprising engineers, AI researchers, and strategists who all uphold a rigorous standard for talent. We believe that exceptional individuals are the cornerstone of our future success.Your RoleWe seek dedicated Backend Engineers who are passionate about the art of software development. Your focus will be on implementing strong typing, thoughtful API design, and robust data modeling. You will not be developing AI models; instead, you will construct the surrounding ecosystem: the platform, workflows, interfaces, integrations, and observability that render our AI applicable in real-world scenarios. As one of the early engineers at Edra, you will have the opportunity to influence not only the product but also the engineering culture, tooling decisions, and technical frameworks upon which our company is built.Our approach is intentional and thorough. There is no distinction between 'building it' and 'shipping it'—you will oversee the journey from conceptualization to deployment, taking full ownership of your outcomes. We prioritize thoughtful development over speed, striving for a balance between velocity and quality.Key ResponsibilitiesDesign and implement platform systems utilizing Python (FastAPI), including API contracts, database schemas, and infrastructureDevelop and sustain connectors, integrations, and data pipelines that link our platform to external systemsCreate internal libraries, tools, and interfaces that enhance the productivity of the engineering teamTake full ownership of your work by gathering context, managing dependencies, and driving tasks to completion independentlyEngage in multiple roles across the stack—design a schema in the morning, develop the API layer in the afternoon, and troubleshoot a deployment issue by day’s endParticipate in weekly product meetings, understand user interactions with your creations, and help shape future developmentsCollaborate daily with a small, elite team of engineers and AI specialistsHave a direct impact on the technical direction: select tools, establish patterns, and define conventions for the team

Talan is looking for a Python Developer to join its London office. This position centers on building and maintaining applications for a variety of client projects. The work includes both new software development and ongoing support, with a strong emphasis on delivering solutions that meet business needs. Key responsibilities Design, develop, and maintain Python-based applications Collaborate with colleagues across different teams to achieve project objectives Take part in planning and implementing technical solutions Support existing systems and address issues as they come up Role overview This role involves hands-on development as well as troubleshooting and supporting live systems. Working in a collaborative environment, the Python Developer will contribute to projects that serve a diverse group of clients.

Role Overview LMAX is looking for a C++ and Python Developer to join the Middle-Office Team in London. This group works closely with infrastructure, research, and treasury colleagues to evolve trade reconciliation, back-testing frameworks, and trading monitoring systems. The primary focus is on data engineering and the design and implementation of trading systems. Finance or trading experience is not required for this position. How This Team Works The codebase combines C++ (used by infrastructure) and Python (used by research for analysis and automation). This new team aims to bridge both languages, making integration and collaboration central to the role. Performance and Optimization Handling financial data brings unique technical challenges, especially around throughput. The team puts a strong emphasis on software performance without sacrificing maintainability. Developers work deep within the systems to understand and improve them. Testing Approach Comprehensive test suites are critical here. Testing covers everything from unit tests to full end-to-end simulations, running every 15 minutes on the CI system for fast feedback. There are no overnight waits for test results at LMAX. What You Will Do Write clear, well-structured, and thoroughly tested code in C++ and Python. Develop high-throughput software solutions. Pair program to share knowledge and avoid silos. Design and implement features to improve safety, performance, and usability. Create interface code connecting C++ and Python (using pybind). Required Skills and Experience Strong C++ skills, especially with modern C++ in Linux or UNIX environments. Python development experience, including Numpy, Pandas, and SQL. Experience with automated testing for both C++ and Python. Ability to understand business requirements and build matching systems. Skilled at designing simple, well-documented, and maintainable systems. Comfortable working independently with minimal supervision. No finance or trading background necessary. Bonus Skills Experience with test-driven development and testing at multiple system levels. Location London, England, United Kingdom

About the Role Weekday-1 is hiring a Senior Software Engineer in London to help build and scale intelligent systems with Python and Large Language Models (LLMs). This role focuses on designing, developing, and deploying AI-driven solutions for real-world problems. What You Will Do Design and implement systems that use LLMs in production settings Work across the full development lifecycle, from architecture through deployment Collaborate closely with product, data, and research teams to deliver reliable, high-performing solutions Ensure that AI systems meet performance and reliability standards What We’re Looking For Extensive experience with Python Strong background in integrating and scaling Large Language Models Ability to work collaboratively as a senior member of an engineering team Location This position is based in London, England, United Kingdom.

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.

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 the Role Jane Street is seeking talented Software Engineers who are eager to contribute to the design and development of the systems and tools that drive our operations. Our Software Engineers are integrated throughout the company, tackling complex challenges that span from trading desks to accounting, as well as creating essential infrastructure, including network monitoring solutions and risk models. We are strong advocates of functional programming, primarily utilizing OCaml, a statically-typed functional programming language. Recently, Python has emerged as a crucial component in our research and trading initiatives, serving as the primary language for data analysis, visualization, and machine learning. In addition to our internal practices, we value the significance of open-source software. We actively incorporate it into our daily operations and have released over a million lines of our code as open source. We are continually looking for ways to enhance open-source projects and provide ongoing support for tools like Mercurial, the OCaml compiler, and the OPAM package manager. We welcome passionate engineers with experience in any programming language; most of our team members started with minimal practical knowledge of OCaml. To learn more about our interview process and meet some of our newest hires, feel free to explore.