Engineering Intern, Web3/AI at Blockchain.com | London

Blockchain.com is at the forefront of revolutionizing the financial landscape by connecting millions to the future of finance. As the most trusted and rapidly expanding global cryptocurrency company, we empower individuals worldwide to securely access cryptocurrency. Since our establishment in 2011, we have gained the confidence of over 90 million wallet holders and more than 40 million verified users, facilitating transactions exceeding $1 trillion in crypto.As we expand our global footprint across retail and institutional products, we are excited to introduce our Early Careers program aimed at nurturing the next generation of talent across various functions.We are on the lookout for a driven Engineering Intern to join our Web3 and AI team at Blockchain.com. This position provides an invaluable opportunity for hands-on experience in a dynamic, high-growth fintech and crypto environment, collaborating with seasoned professionals on impactful business initiatives.You will play a pivotal role in advancing innovative projects in the Web3 and AI sectors, contributing to the development of our platform (June) and strategic R&D initiatives while honing practical skills and gaining insight into the operations of a global technology leader.Duration: 6-month internship with potential progression to a permanent Junior Web3 Engineer role.

Blockchain.com is at the forefront of revolutionizing finance, providing millions globally with secure access to cryptocurrency. Established in 2011, we have gained the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.Blockchain is the world's premier software platform for digital assets. We operate the largest production blockchain platform globally, driven by our passion for coding and building an open, accessible, and equitable financial future, one innovative software solution at a time.We are seeking a Site Reliability Engineer to join our Core team. This role involves advocating for infrastructure best practices across our organization, enabling us to securely scale a distributed financial platform that serves millions daily.Our distributed financial platform addresses some of the most fascinating challenges in the crypto space for our vast customer base and is experiencing rapid growth. The Site Reliability Engineering (SRE) team at Blockchain merges software and systems engineering to create a platform that simplifies complexity, enhancing security, reliability, and swift product delivery.The SRE organization at Blockchain is a dynamic environment focused on continual improvement. We foster a culture where team members can propose, discuss, design, and implement changes with a high degree of autonomy. We value abstract thinking to develop exceptionally effective tools and strive to eliminate toil.As a member of the Core team, you will gain a comprehensive understanding of our products' infrastructure needs. Your role will include establishing and maintaining innovative engineering solutions to enhance our customers' experience through the development of essential tools. Importantly, you will also mentor and guide developer teams to deliver new features in a rapid, secure, and scalable manner.

Blockchain.com is revolutionizing the future of finance by connecting individuals to the world of cryptocurrency. As a leading global crypto company, we empower millions to securely access and utilize cryptocurrency. Since 2011, Blockchain.com has garnered the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.Our Summer Internship Program offers students a unique opportunity to gain hands-on experience in the crypto industry, working on impactful projects alongside seasoned professionals in a dynamic, global technology environment.We are seeking a driven HR Summer Intern to join our People team for a 12-week internship from June to September 2026.This position is perfect for students passionate about employee culture, communication, and the role of internal messaging in enhancing the employee experience within a global organization.

Company OverviewDeductive AI is pioneering the development of the world's first real-time reasoning engine designed to identify and mitigate large-scale software outages. By employing advanced reasoning techniques on distributed systems, code, and statistical anomalies, we analyze vast amounts of telemetry data—including metrics, logs, traces, and events—in real-time. Our accomplished team boasts decades of experience from industry leaders such as Databricks, Facebook, Thoughtspot, Google, Splunk, and Amazon. Backed by top-tier venture capital firms, we are well-positioned for growth and innovation.Internship OverviewWe are looking for innovative interns to join our team and engage with cutting-edge technology. You will tackle fascinating challenges at the intersection of artificial intelligence, code understanding, and data analytics. Your work will involve distributed systems, the development of AI agents, and the fine-tuning and benchmarking of Large Language Models (LLMs).This is a paid, on-site internship based in Camden, London. As a Software Engineer Intern at Deductive AI, you will have the opportunity to contribute to the next generation of foundational code and data processing systems that can reason over extensive datasets, both structured and unstructured. We are committed to aligning projects with your skillset and preferences.

Blockchain.com is at the forefront of transforming the financial landscape. As the most reliable and rapidly expanding global cryptocurrency company, we empower millions worldwide to securely engage with digital assets. Since our inception in 2011, we have garnered the confidence of over 90 million wallet holders and more than 40 million verified users, facilitating transactions exceeding $1 trillion in cryptocurrency.Blockchain.com is the leading software platform for digital assets. We boast the largest production blockchain platform globally, driven by a shared passion for coding, innovation, and the pursuit of an inclusive and equitable financial future, one software solution at a time.We are currently in search of a skilled C++/Rust Quantitative Software Engineer/Developer. In this role, you will design, build, and optimize our electronic trading platform, collaborating closely with our traders to enhance our core trading infrastructure and high-throughput trading systems. Your expertise will be crucial in identifying and mitigating critical bottlenecks in both research and production trading.The ideal candidate will possess a robust understanding of low-level optimization, a keen interest in algorithmic trading, data analysis/design, risk management, and application development. You will gain valuable exposure to quantitative trading in our fast-paced, dynamic environment. You will have the opportunity to take full ownership of projects from inception to deployment. We expect you to be a proficient Rust/C++ engineer with hands-on experience in high-frequency trading and fast market connections.

Join our dynamic team at Blockchain as an Infrastructure Security Engineer. In this pivotal role, you will be responsible for designing, implementing, and maintaining robust security architectures to safeguard our cutting-edge blockchain technologies. Your expertise will be essential in identifying vulnerabilities, managing security incidents, and ensuring compliance with industry standards.We are looking for a passionate individual who thrives in a fast-paced environment and is eager to contribute to the future of decentralized technologies.

About the RoleWe are seeking a talented Senior Full-Stack Engineer to become a vital part of our ongoing trading platform development for a major enterprise client. This system is critical to production, long-lasting, and continuously evolving, with a significant emphasis on performance, reliability, and maintainability.While Applied Blockchain is recognized for its advancements in distributed ledger technology and cryptography, this position focuses on a non-blockchain trading system utilizing cutting-edge TypeScript-based technologies.You will join a highly skilled team of senior engineers and QA developers, where autonomy, technical ownership, and thoughtful decision-making are paramount.Your Responsibilities IncludeDesigning, developing, and maintaining features across the full stack of an internal trading platform.Working primarily with:TypeScript (Node.js & React)Monorepo tooling, GitHub, GitHub ActionsJest, PlaywrightRedis, MS SQL, WebSocketsDocker, KubernetesObservability tools (Grafana, Prometheus, SonarQube)Taking complete ownership of features from conception through to production.Collaborating closely with platform/DevOps engineers on build pipelines, observability, and operational concerns.Interfacing directly with clients to clarify requirements and propose effective solutions.Contributing to and enhancing automated testing practices.Participating in peer code reviews to maintain high engineering standards within the team.Utilizing LLM/AI enabled development tools and techniques (with access to the latest OpenAI/Anthropic models) in everyday development.Qualifications8+ years of professional software development experience.3+ years of hands-on experience with TypeScript, including Node.js and React.Proven experience in building and maintaining production systems.Able to work effectively within a senior, autonomous engineering team.Excellent communication skills with fluency in English.Hybrid work arrangement (London).Preferred QualificationsFamiliarity with functional programming concepts or languages (e.g., OCaml, Haskell).Prior experience in trading, finance, or real-time systems.Strong understanding of DevOps and operational aspects (logging, metrics, automation).London-based candidates preferred.Willingness to participate in company/client events and travel as necessary.Benefits5 dedicated training days per year.£1,000 annual training allowance (up to 50% for home workstation equipment).Company-provided equipment and onboarding kit.In-person team events every quarter.Annual bonus based on company performance.

About Blockchain.com Blockchain.com connects people to the world of cryptocurrency. Since 2011, the company has supported over 90 million wallet holders and more than 40 million verified users, processing more than $1 trillion in transactions. Role Overview The Institutional team at Blockchain.com is looking for a Front-End Engineer based in London. This group focuses on building tools and experiences for institutional clients in the crypto space. What You Will Do Collaborate with colleagues to deliver front-end solutions for institutional products Contribute to a culture that values courage, productivity, and continuous improvement Work to optimize processes and deliver results that matter Grow your skills by learning from others and sharing knowledge What We Look For Strong interest in front-end engineering and digital assets Team player who values collaboration and learning Commitment to high standards and impactful work Based in London or willing to work from the London office

Internship Overview Wexler is seeking a Software Engineering Intern to join its London team. This is a hands-on role where interns work closely with experienced Software and Machine Learning Engineers, contributing directly to the company’s agent infrastructure and product innovation. The work impacts legal professionals who depend on Wexler’s technology every day. This internship is designed for students set to graduate in 2026 or strong second-year students from top UK universities, ideally studying Computer Science or a related field. A genuine interest in building, learning, and applied AI is important. About Wexler Wexler specializes in Legal AI, focusing on solutions tailored to the specific workflows of legal professionals. The company addresses the slow adoption of AI in the legal sector by offering targeted, precise tools rather than general-purpose platforms. Wexler’s approach has earned positive feedback for its attention to detail and commitment to supporting the needs of legal practitioners. What You Will Do Develop and improve Wexler’s agentic infrastructure. Work with the technical team on new projects that extend product capabilities. Help build user interfaces that make complex legal workflows accessible. Collaborate with AI engineers to bring LLM features into production systems. Participate in architecture discussions and learn best practices from experienced engineers. Tackle challenges such as delivering smooth user experiences, scaling performance, and upholding enterprise security standards. Technical Skills Back-end: Solid experience with Node.js, TypeScript, or Python (preferably both). Ability to write clean, testable server-side code. Databases: Familiarity with relational databases, especially PostgreSQL. Understanding of schema design and querying.

At Coram AI, we are revolutionizing video security in today's digital landscape. Our innovative cloud-native platform leverages cutting-edge computer vision and artificial intelligence to empower businesses with enhanced safety, informed decision-making, and rapid response capabilities. Experience real-time alerts, effortless clip sharing, and comprehensive visibility across multiple sites.Joining our dynamic, agile team means embracing clarity, excellence, and impactful contributions. Every team member has a voice, delivers significant work, and plays a vital role in shaping how AI can foster a safer and more interconnected world.In this role, you will be part of a pioneering team responsible for managing a sophisticated infrastructure that transcends conventional cloud setups. Beyond our robust AWS and Kubernetes configurations, we also oversee a vast array of IoT devices. We are in search of a skilled engineer who will play a crucial role in developing and maintaining our edge and cloud stack that supports our IoT product offerings, focusing on both infrastructure and the bespoke software we utilize.You will tackle intriguing challenges at the confluence of user experience, machine learning, and infrastructure, while committing to excellence, continuous learning, and delivering exceptional products in a fast-paced startup environment.

Blockchain.com is at the forefront of revolutionizing the financial landscape. As a leading global cryptocurrency platform, we empower millions to securely engage with digital assets. Since our launch in 2011, we have garnered the trust of over 90 million wallet holders and facilitated more than $1 trillion in crypto transactions.Blockchain.com is the premier software platform for digital assets, providing the world's most extensive production blockchain platform. Our mission is to drive innovation, foster creativity, and build a transparent and equitable financial future through cutting-edge software development.We are seeking talented software engineers from diverse technical backgrounds with a solid history of designing scalable, reliable, and high-performance systems. In this pivotal role as a Senior Back-End Engineer, you will lead technical discussions, influence strategic decisions, and contribute to the team's growth by championing exemplary engineering practices.

Join StackOne:At StackOne, we are pioneering the future of SaaS and AI integrations. Supported by GV and Workday Ventures with $24M in funding, we empower developers of SaaS platforms and AI Agents to seamlessly integrate with a multitude of tools, enhancing functionality with scalable and precise solutions. Our platform boasts 25,000 pre-mapped actions across 200 connectors, alongside an AI-driven integration development toolkit that emphasizes security: featuring real-time architecture, managed authentication, and comprehensive observability.Join us on our ambitious journey towards revolutionizing agentic integrations.With an AI-native integration toolkit that ensures real-time execution and robust security measures, we are heavily investing in AI R&D. Our new lab focuses on developing specialized LLMs that excel in precision, reliability, and safety - crucial components for effective agentic execution.Your Role:As an AI Engineer, you will play a pivotal role in enabling users to integrate their preferred tools effortlessly with just one click, thanks to StackOne's innovative solutions.We seek a skilled Software Engineer with a solid foundation in AI production-grade applications, particularly with experience in working with LLMs (e.g., GPT, Anthropic, etc.).In this position, you will be responsible for delivering AI features and products throughout their lifecycle, collaborating closely with our dedicated AI team, which includes both AI researchers and engineers. You will report directly to the CTO.

Blockchain.com is at the forefront of revolutionizing the financial landscape. As a rapidly expanding and highly esteemed global cryptocurrency firm, we empower millions to securely engage with the world of digital assets. Established in 2011, we have gained the confidence of over 90 million wallet holders and more than 40 million verified users, processing transactions exceeding $1 trillion in cryptocurrency.In our quest to expand our global reach through both retail and institutional offerings, we are excited to unveil our Early Careers program, aimed at nurturing the next wave of talent across diverse functions.We are in search of a passionate Marketing Research Intern to join our dynamic Marketing team at Blockchain.com. This opportunity provides invaluable hands-on experience in a thriving fintech and crypto ecosystem, collaborating with seasoned professionals on impactful business projects.Your contributions will help drive significant initiatives that cater to both B2B and B2C segments, allowing you to hone practical skills while gaining insights into the operations of a global technology enterprise.Duration: 6-month internship, with potential for full-time employment.

About WexlerWexler is at the forefront of developing a revolutionary AI system tailored for litigation. We collaborate with some of the largest law firms globally, assisting them in navigating their most intricate legal battles, uncovering winning strategies, and transforming the overwhelming influx of documents and facts into actionable insights. Located in London, Wexler is a rapidly expanding legal AI company trusted by renowned firms such as Clifford Chance, HSFKramer, Goodwin, and Addleshaw Goddard to pinpoint crucial facts that can sway case outcomes.Backed by a $5.3M Seed round from Pear VC, Seedcamp, The LegalTechFund, and a host of esteemed industry angels, we are developing a comprehensive AI platform aimed at managing, resolving, and preventing legal disputes for Enterprise law firms and Fortune 500 companies. Our growth trajectory is remarkable, boasting a 10x year-over-year increase and onboarding more distinguished firms each month. Our innovative system efficiently extracts and cross-references facts from millions of documents, empowering litigators to secure more victories while significantly reducing the time spent on case preparation. Ultimately, we ensure that every client receives the legal representation they rightfully deserve.As AI reshapes the legal landscape, most existing tools have concentrated on contract law or serve as generic copilots across various legal tasks. In contrast, Wexler stands out as the premier generative AI platform meticulously designed for the intricacies of litigation, evidenced by our rapid growth and industry acceptance.About the RoleWe are in search of a talented AI Engineer to help redefine the future of legal practice. You will play a crucial role in building autonomous systems that analyze vast amounts of documents to extract pivotal factual information essential for winning legal cases. As an integral member of our team, you will have direct influence over our AI strategy, leveraging cutting-edge technology to address the real challenges faced by elite litigators.

Improbable is a cutting-edge Venture Builder and technology innovator at the forefront of developing advanced networked and digital infrastructure tailored for the web3 economy. Collaborating with industry leaders, we are pioneering businesses focused on AI transformation, the metaverse, and web3. We not only create startups from the ground up but also invest in existing ventures.Founded in 2012 and headquartered in London, Improbable embarked on an ambitious journey to enable vast, dynamic, and interactive online worlds. Over the last decade, we have established ourselves as a global powerhouse in venture creation, decentralized technology, digital assets, and blockchain-enabled infrastructure, empowering creators, brands, and communities to craft and scale the next generation of digital experiences.At Improbable, you will be surrounded by passionate individuals dedicated to enhancing their surroundings and motivating you to reach your potential. We thrive on the fulfillment that comes from tackling challenging problems to achieve meaningful and transformative outcomes.Your RoleIn the position of Principal Frontend Engineer, you will not only develop user interfaces but also serve as the architectural leader for our DeFi ecosystem. Your mission will be to address the industry's most complex challenge: simplifying blockchain backend complexities to provide a seamless, consumer-grade user experience.You will become part of a collaborative, cross-functional team comprised of friendly, adaptable, creative, and product-focused engineers who share a common passion for building high-quality, user-centered software that generates genuine impact.

Lead Blockchain Payments Engineer - Fiat Ramps & Financial InfrastructureJoin an elite team at the forefront of fintech and high-scale cryptocurrency infrastructure as a Lead Blockchain Payments Engineer. Based in London, this full-time, on-site role offers a competitive salary and the opportunity to work within a high-growth software organization known for its innovation and extreme talent density.The ideal candidate will be a core architect of our financial infrastructure, responsible for designing and scaling services that enable seamless fiat-to-crypto transactions, real-time risk decision-making, and immutable financial records. If you are passionate about building the future of global value transfer and thrive in high-throughput, low-latency environments, we want to hear from you!Key Responsibilities:Payment Orchestration & Integrations: Manage end-to-end orchestration for major banking and card networks, design fault-tolerant APIs, and oversee third-party integrations.Real-Time Risk & Compliance: Build a cutting-edge risk engine, implement foundational KYC/AML practices, and collaborate with compliance teams.Financial Integrity & Reconciliation: Architect a double-entry ledger and automated reconciliation processes to ensure financial accuracy.Blockchain & Wallet Operations: Oversee hot-wallet flows and operational safeguards for the secure delivery of crypto assets.Reliability & Instrumentation: Establish reliability standards and instrument financial flows with comprehensive metrics and logs.

Join Edra as an AI EngineerAt Edra, we are tackling one of the most challenging issues in enterprise AI: the mismatch between generic AI models and specific company processes. We are developing AI agents that learn to navigate and execute processes as they truly operate.As a Series A startup, supported by Sequoia and other notable venture capital firms, we are expanding our teams in New York and London. Our workforce is composed of exceptionally skilled engineers, AI researchers, and strategists who believe that outstanding talent is the cornerstone of our success.Your RoleYou will be instrumental in creating a learning system that equips AI agents with the knowledge of how enterprises function. This system will assimilate knowledge bases, dialogues, tickets, and system logs, generating written directives that agents can confidently execute, including a scoring mechanism to determine when to automate tasks or request human intervention.We seek AI Engineers with a track record of building intricate, production-ready LLM-based systems. If you've scaled LLM workflows to manage millions of requests, developed multi-agent systems in live environments, or created evaluation frameworks for enterprise applications, we want you. Your contributions will directly impact our core learning library, and you will ship features that serve actual enterprise customers while enhancing the platform. This role covers continuous learning systems, agentic features, human-in-the-loop feedback mechanisms, and orchestration of AI agents.Your ResponsibilitiesContribute to our core context learning library by implementing new learning capabilities and generalizing them for broader platform use.Design and execute LLM-powered systems and workflows from initial concept to production.Collaborate with enterprise customers to identify issues, prototype solutions, and bring them to production.Develop agentic features for knowledge management, enabling agents to autonomously edit, update, and maintain extensive knowledge bases.Establish reliability and confidence systems, including evaluation frameworks and logic for determining when to automate versus when to escalate to human oversight.Architect asynchronous, scalable systems for complex AI orchestration.Influence the direction of our AI strategy and product capabilities.

Join Distyl AIAt Distyl AI, we are revolutionizing the landscape of applied artificial intelligence. As a pioneering technology company, we collaborate with leading institutions across sectors such as telecommunications, healthcare, insurance, manufacturing, and consumer goods. Our mission is to redefine operational processes through innovative AI-driven solutions.Our extensive research and deployment initiatives focus on creating AI-native systems that enhance efficiency and effectiveness. Our groundbreaking technologies support massive operational frameworks, impacting millions of consumer interactions and vital workflows globally.With backing from top-tier investors including Lightspeed Venture Partners and Khosla Ventures, Distyl AI boasts a remarkable track record of 100% success in production deployments, making us one of the few profitable enterprises in the AI domain.Your RoleWe are excited to announce the opening of our London office and are in search of talented AI Engineers to architect and implement production-grade AI systems harnessing the power of Large Language Models (LLMs).As an AI Engineer, you will collaborate with Fortune 500 clients to streamline intricate workflows using state-of-the-art AI technologies. You will design and launch AI applications that operate on a large scale in critical environments, from intelligent agents to comprehensive AI solutions.This position is highly hands-on, requiring close collaboration with clients to define system architectures and develop reliable, impactful AI systems from initial prototypes to full-scale production. You will also play a pivotal role in shaping technical strategies across key customer projects, guiding enterprise teams through the intricacies of AI adoption.

Why Choose Deliveroo?At Deliveroo, our mission is to revolutionize the shopping and dining experience by delivering your favorite food and products right to your doorstep. We bridge the gap between consumers, restaurants, shops, and riders, making it easier and more enjoyable to access what you love, when you want it.As a technology-driven organization, we are at the forefront of one of the fastest-growing industries globally. Although we are a compact team, our impact is significant, as we tackle some of the most compelling challenges in our sector. We prioritize speed, independence, and innovation, continually seeking fresh ideas.Joining Deliveroo offers an exceptional opportunity to build a meaningful career centered on impact—both on your personal development and our company as we scale. You can leave your mark while contributing to the positive effects we create in our marketplace and communities.About the InternshipIn your role as a Software Engineer Intern at Deliveroo, you will implement and manage technological solutions that enhance the experiences of our restaurants, riders, and customers. From designing user-friendly interfaces to developing scalable backend systems, our goal is to deliver reliable and high-performance technology that delights our users.Our 12-week internship program immerses you fully within your team, allowing you to develop, maintain, and ship products that make a real difference. You will have the chance to collaborate with your team to solve genuine problems for our customers, directly influencing our business.Candidates must possess the legal right to work in the U.K. to be eligible for this position. The internship program for 2026 will take place in person at Deliveroo's London headquarters at Cannon Bridge House.

Who We AreLightning AI is the innovative force behind PyTorch Lightning, established in 2019. We provide a comprehensive platform designed to streamline the development, training, and deployment of AI systems, effectively bridging the gap between research and production.Our merger with Voltage Park, a neocloud and AI Factory, empowers us to combine developer-centric software solutions with economical, large-scale computing capabilities. We equip teams with essential tools for experimentation, training, and production inference, ensuring built-in security, observability, and control.We cater to solo researchers, startups, and large enterprises alike, operating globally with offices in cities such as New York City, San Francisco, Seattle, and London. Our efforts are supported by notable investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.What We’re Looking ForWe are seeking a skilled Backend Engineer to develop and enhance the Lightning AI platform across various components, from the frontend and CLI to API, billing, security, and integrations. You will take full ownership of key features, driving development from concept to production while collaborating with a talented team of engineers, product managers, and designers. This role offers the chance to create groundbreaking technology that will revolutionize the machine-learning ecosystem!This hybrid position is based in our London office with a requirement of 2 in-office days per week. The salary range for this role is $120,000 - $250,000.