Senior Python Engineer - Contract Opportunity in AI

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

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.

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.

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.

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.

We are seeking a highly skilled Contract Senior Java / Kotlin Engineer to join our dynamic team.Work Location: On-site, 2 days per week in Spitalfields, LondonKey Requirements: Proven expertise in Java or Kotlin (back-end development) and a strong commitment to Test-Driven Development (TDD).Expected Start Date: Mid MarchAbout Us:At AND Digital, we are a forward-thinking tech company dedicated to enhancing digital delivery and bridging the digital skills gap. Since our inception in 2014, we have empowered organizations to create superior digital products and foster robust digital teams. We pride ourselves on the impactful nature of our work, making a significant difference for our clients through our regional offices (referred to as ‘Clubs’), which enable us to build strong, lasting partnerships. This model has not only driven our clients' success but has also facilitated our remarkable organic growth, expanding our team to over 1,300 professionals across the UK, Europe, and the USA, with ambitious plans for global expansion in the coming years.Join us on our mission to close the global digital skills gap!Your Role:Collaborate within a cross-functional team comprising software developers, technical product owners, and testers, all aligned towards developing JVM applications using Test-Driven Development and Pair Programming.Lead the design and implementation of our systems with a clear understanding of the context and purpose behind each project, while continually seeking opportunities to enhance our systems and workflows.Provide mentorship and coaching to fellow team members.Possess extensive knowledge of Java or Kotlin programming languages (5+ years of experience).Demonstrate in-depth knowledge and hands-on experience working within a cross-functional, agile development team.Have at least 3 years of practical experience in Test-Driven Development and a keen interest in Pair Programming.Equal Opportunities Commitment:We are proud to be an equal opportunity employer and welcome applications from all qualified individuals. We actively encourage applications from women, ethnic minorities, and individuals with disabilities. We are open to discussing flexible working arrangements, depending on the specific requirements of the role. Where reasonable adjustments are required, we will make every effort to accommodate them.

Role overview Paconsulting is hiring a Senior AI Engineer in London. This position shapes how artificial intelligence supports and advances the company’s services. The Senior AI Engineer partners with colleagues from different disciplines to build and deploy advanced AI models and algorithms. What you will do Design, develop, and implement AI models and algorithms Collaborate with cross-functional teams to integrate AI solutions into service offerings

Role overview ASOS Plc seeks a Senior AI Engineer based in London to create AI-driven solutions that enhance customer interactions with the ASOS platform. This position collaborates with teams across the company to address practical challenges through machine learning and artificial intelligence. What you will do Design, build, and deploy AI models that align with ASOS's business objectives Partner with engineering, product, and data teams to deliver integrated solutions Use advanced machine learning and AI techniques to improve both customer experience and operational processes

Role overview SmartRecruiters seeks a Senior AI Engineer based in the United Kingdom. The position centers on building and refining artificial intelligence models to enhance product capabilities and support overall business objectives. What you will do Design, implement, and optimize AI models for practical use cases Collaborate with teams across the company to integrate AI solutions into existing products Apply technical expertise to projects that influence the direction of our technology Requirements Substantial experience in artificial intelligence and machine learning Proven ability to design and deploy AI models Comfort working with cross-functional teams

Role overview The Senior Applied AI Engineer at Taktile will play a central part in building and refining AI-driven solutions for the company's product suite. This position requires direct involvement with AI models and regular collaboration with colleagues across different teams. The work will help guide both the technical and product direction at Taktile. What you will do Design, develop, and implement applied AI models to enhance Taktile’s products. Collaborate with engineering, product, and other teams to take AI features from initial idea to production deployment. Participate in shaping product and AI strategies through active contribution to team discussions and decision-making. Location This is an in-office role based at Taktile’s London location.

JetBrains is seeking an AI Lead focused on Python tools. This position centers on advancing AI technologies across the company’s product suite, with the goal of improving both user experience and product capabilities. Role overview The AI Lead will guide the development and integration of AI features into JetBrains products. The role involves direct oversight of AI project initiatives and regular collaboration with teams from various disciplines. Expect to play a key part in shaping technical direction and ensuring that Python-powered solutions continue to set a high standard in the industry. What you will do Oversee AI-focused projects from conception through implementation Work closely with engineers, designers, and product managers to align AI features with product goals Drive innovation by applying Python expertise to create and refine AI solutions Locations This role is open to candidates based in Amsterdam, Belgrade, Berlin, Limassol, London, Madrid, Munich, Paphos, Prague, remote within Germany, Warsaw, and Yerevan.

Dataiku offers a unified platform for building, deploying, and managing AI systems at enterprise scale. Teams use this platform to design analytics, develop machine learning models, and manage AI agents within a single environment. Dataiku connects with many data sources, cloud services, and AI tools, supporting collaboration and centralized oversight. Companies around the world use Dataiku to achieve measurable results with AI. Learn more about Dataiku on the blog, LinkedIn, X, and YouTube. Role overview The Senior Generative AI Engineer joins the Enterprise Data & Analytics (ED&A) team in London. This position is hands-on and centers on building advanced agentic AI systems that help improve internal operations at Dataiku. What you will do Develop and implement generative AI solutions for internal business needs Collaborate with business units to understand challenges and turn them into practical software applications Lead projects from requirements gathering through deployment Oversee the entire lifecycle of AI system development within the ED&A team

Join Our Team as a Senior Product Engineer (AI)At Plain, we're revolutionizing customer support for the next generation of B2B enterprises. Our goal is to create the fastest and most powerful platform that enables businesses to transition from reactive support methods to building genuine relationships with their customers.Renowned companies like Cursor, Raycast, and Granola rely on Plain to centralize customer interactions, enhance team collaboration, and elevate workflows through advanced AI technology.The landscape of B2B customer support is evolving dramatically, with AI paving the way for innovative customer engagement strategies. Support has shifted from being a disconnected, slow process to a cohesive, company-wide initiative that spans channels like Slack, Discord, and beyond. The traditional methods just can't keep up anymore.This position is hybrid, requiring 3 days a week in our London office.Your RolePlain is in an extraordinary position, already powering support solutions for high-growth businesses with our incredibly fast and scalable platform. AI has been integral to our offering from day one, and now we’re committed to deepening its impact across all facets of modern customer support.We are on the lookout for a Senior Product Engineer with a passion for customer success to elevate our AI initiatives. In this role, you will develop the infrastructure necessary for rapid, secure, and confident delivery of AI features, taking ownership of challenges from inception to execution and playing a pivotal role in crafting a category-defining product.In this role, you will:Take full ownership of AI functionalities, including agents, assistants, insights, and beyond—from concept through to production.Design and implement backend services that support AI integrations and data pipelines.Create robust APIs and abstractions for internal AI applications.Enhance system scalability through caching, optimization, and processing patterns.Contribute to the evolution of our AI infrastructure, including architecture, evaluation, and iteration pipelines.Tackle complex challenges surrounding AI accuracy, reliability, and quality using rigorous quantitative methods.Represent our work externally through writing, speaking engagements, and connections with the broader AI community.This Role is Ideal for You If You...Are an experienced backend engineer with a proven track record of shipping AI products in the era of OpenAI and Anthropic, particularly in text and data-intensive AI applications.Possess a deep understanding of AI technologies and their applications in real-world customer support scenarios.

Join Our Mission to Empower the UK’s Small Businesses! At Funding Circle, we believe small businesses are the backbone of the economy, and we’re dedicated to helping them thrive. Our innovative platform leverages advanced data analytics to provide essential funding in mere minutes, not weeks.As a dynamic fintech company with the strength of a public enterprise, we offer a unique environment that empowers our team members, known as Circlers, to take ownership of their work while making a significant impact.We pride ourselves on our high-performing culture where collaboration and support are paramount. Together, we challenge each other, celebrate successes, and ensure that we’re always moving forward, building better solutions for our customers.Your Impact Matters: In the past year, businesses utilizing our platform generated an impressive £7.2 billion for the UK economy Be a part of something that truly matters![Explore our Impact Report] | [Check our Trustpilot Reviews]What We’re SeekingWe are on the lookout for a talented Senior AI Engineer who possesses a strong background in full-stack development and a keen interest in artificial intelligence. Although some professional experience in AI/ML is necessary, this role is ideal for a senior engineer eager to delve into the AI/ML sector and develop cutting-edge applications.Data is at the heart of our mission to create a more equitable financial landscape, and we believe everyone in our organization plays a vital role in safeguarding this asset to better serve our customers.Our central data team operates within our Tech organization and reports to the VP of Data. To enhance our data maturity and foster a truly data-driven culture, we are committed to:Fostering a robust data culture where data is viewed as a valuable assetEmpowering our Circlers to become proficiently data-fluent usersEnhancing our world-class data platformCreating innovative data products across various domainsTransforming our business through machine learning and artificial intelligence

Role overview Funding Circle seeks a Senior AI Platform Engineer based in London. This role centers on shaping and improving AI-powered solutions that make small business financing more accessible. The focus is on designing, building, and refining machine learning systems that enable faster, more effective lending decisions. What you will do Design and develop AI platforms that can scale for production use Optimize machine learning systems to boost performance and reliability Partner with engineers, data scientists, and product managers to deliver solutions that have real impact Team and impact Work alongside a skilled team committed to creating technology that helps small businesses access funding efficiently. The results of your work will directly support Funding Circle’s mission to make finance more accessible for small businesses.

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.

Join Lendable’s MissionLendable is dedicated to revolutionizing the credit landscape by creating cutting-edge technology that empowers individuals to access credit and save money effectively. As one of the UK’s newest unicorns, we are rapidly establishing ourselves among the fastest-growing fintech companies.With a dynamic team of over 700 professionals, we have been profitable since 2017 and are supported by esteemed investors including Balderton Capital and Goldman Sachs. Our customer satisfaction speaks volumes, boasting a remarkable rating of 4.9 from tens of thousands of reviews on Trustpilot.Having successfully reconstructed the Big Three consumer finance products—loans, credit cards, and car finance—we are committed to providing our customers with quick access to funds. Our vision extends to expanding into major markets like the UK and US, targeting outdated banking systems and improving user experiences.Why You Should Join UsOwnership: Take charge from day one and influence Lendable’s trajectory.Exceptional Teams: Collaborate with a small group of innovative individuals dedicated to solving complex challenges and improving existing solutions.In-House Technology: Develop top-tier technology using machine learning and AI to optimize processes and enhance efficiency.Role OverviewWe are in search of a hands-on AI Engineer to bolster our Internal Automation team. Your role will focus on enhancing the efficiency of various internal teams, including Finance, Compliance, Product, and QA, through the development of AI-driven tools and automated workflows. Working within a compact team of four engineers and one project manager, you will play a vital role in streamlining operations, minimizing friction, and allowing colleagues to devote more time to high-priority tasks.

Join Our Innovative Team as a Senior AI Engineer (Agentic Systems)At StarCompliance, we are at the forefront of creating software solutions that address critical compliance needs for our global clientele. As we integrate AI as a fundamental capability throughout our software development lifecycle, we invite you to be part of this transformative journey.We are looking for a Senior AI Engineer to spearhead the practical implementation and expansion of AI-assisted and agentic engineering within our teams. This is a hands-on role where you will engage directly with real codebases, leveraging cutting-edge AI-native development environments (Cursor preferred) to revolutionize the software development process.Your mission will be to evolve AI from a mere tool into a fully embedded system that is repeatable and scalable. You will craft and execute playbooks, establish workflows, and define patterns that allow our teams to harness the power of parallel AI agents, facilitate autonomous code reviews, and create AI-driven delivery pipelines. Additionally, you will play a pivotal role in launching new initiatives, ensuring they are built on the right architecture and AI-enabled engineering practices from the outset.This position is part of our R&D Engineering team and collaborates closely with Platform, QA, and Product Engineering. Here, influence is gained through tangible delivery rather than hierarchy.Our Vision of AIWe view AI not just as an assistant, but as an integral component of our engineering ecosystem. We expect engineers in this role to embrace this perspective and drive our AI initiatives forward.

At Mindera, we are seeking a highly skilled Senior Software Deployment Engineer to take charge of the delivery, configuration, testing, and deployment of applications and retail device solutions in complex, large-scale environments. This pivotal role allows you to influence deployment strategies, spearhead automation efforts, enhance system reliability, and mentor fellow engineers.Your collaboration with product, platform, and engineering teams will be crucial in ensuring the seamless, secure, and high-quality release of applications that reach thousands of customers. Please note that this is a hybrid role, requiring you to be onsite in Bracknell three days a week.

About LawhiveAt Lawhive, we are committed to democratizing access to legal services. Our innovative online platform empowers consumers and small businesses to obtain legal assistance at a fraction of traditional law firm costs. We seamlessly integrate human expertise from regulated lawyers with our pioneering AI lawyer, designed specifically for consumer legal matters.We believe that equal access to legal resources is one of the most significant societal challenges today. Our mission is to level the playing field, ensuring that legal assistance is as accessible as essential utilities.Our AI lawyer, Lawrence, is powered by our proprietary fine-tuned LLM, which has successfully passed the UK bar exam equivalent.Supported by leading venture capital firms in the US and UK, including Google Ventures, Balderton Capital, and TQ Ventures, we recently raised $40M in Series A funding to bolster our international expansion and grow our dynamic team, marking one of the largest Series A rounds in Europe for 2024.The RoleWe are on the lookout for a Senior Applied AI Engineer to become a pivotal member of our AI Engineering & Infrastructure team. In this role, you will be instrumental in deploying our latest AI-powered features and services at scale, enhancing our infrastructure, and ensuring the robustness of our solutions in production. Collaborating closely with AI researchers, software engineers, and product teams, you will bridge the gap between state-of-the-art AI research and its practical applications.