Senior Full-Stack Engineer - AI Agent Platform

<div class="content-intro"><p>Ebury helps ambitious businesses unlock global growth, and we take the same approach with our people. We encourage innovation and movement, collaboration and problem-solving, and foster an environment where everyone can feel they belong, are valued, supported and empowered to succeed.</p> <p>If you’re a collaborator who wants to help transform how businesses operate globally, get in touch - we’d love to discuss how Ebury can accelerate your career so you can shape the future.</p></div><p><span style="text-decoration: underline;"><strong>Senior Full-Stack Engineer - AI Agent Platform</strong></span></p> <p><strong>London Victoria Office - Hybrid: 4 days in the office, 1 day working from home</strong></p> <div id="contentsContainer" class="style-scope qowt-page"> <div id="contents" class="style-scope qowt-page"> <p id="E217" class="x-scope qowt-word-para-0"><span style="text-decoration: underline;"><strong><span id="E218">About the Role</span></strong></span></p> <p id="E219" class="x-scope qowt-word-para-1"><span id="E220">We're building an AI-powered financial crime investigation platform that's transforming how Ebury's compliance teams work. Our AI agents will process thousands of screening cases, reducing analyst workload while maintaining regulatory standards.</span><span id="E222"></span></p> <p id="E223" class="x-scope qowt-word-para-1"><span id="E224">We're looking for a Senior Full-Stack Engineer to help us scale our platform and raise the engineering bar. You'll architect and deliver complex features across the entire stack - from React frontends to Python backends to LLM integrations - while mentoring teammates and shaping our technical direction.</span><span id="E226"></span></p> <p id="E227" class="x-scope qowt-word-para-1"><span id="E228">This is a unique opportunity to work at the intersection of AI/ML, fintech, and compliance - building production AI systems that handle real financial crime investigations at scale.</span><span id="E230"></span></p> <p id="E231" class="x-scope qowt-word-para-0"><span style="text-decoration: underline;"><strong><span id="E232">What You'll Do</span></strong></span></p> <ul> <li id="E233" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E234">Architect and build end-to-end features across our React frontend and FastAPI backend, making sound technical decisions that balance speed with maintainability</span></li> <li id="E235" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E236">Design AI agent workflows using LangGraph for screening automation, RAG pipelines, and multi-agent orchestration</span></li> <li id="E237" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E238">Lead technical initiatives - own complex features from design to production, breaking down ambiguous problems into actionable work</span></li> <li id="E239" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E240">Integrate complex data sources (internal APIs, third-party services like LexisNexis, data warehouse) with robust error handling and observability</span></li> <li id="E241" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E242">Improve platform reliability - implement monitoring, alerting, and performance optimizations for production AI systems</span></li> <li id="E243" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E244">Mentor and uplift junior and mid-level engineers through code reviews, pairing, and technical guidance</span></li> <li id="E245" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E246">Shape engineering practices - contribute to architecture decisions, coding standards, and team processes</span></li> <li id="E247" class="qowt-li-2_0 qowt-list x-scope qowt-word-para-3"><span id="E248">Collaborate cross-functionally with Product, Design, Compliance, and other engineering teams to deliver impactful solutions</span></li> </ul> <p id="E249" class="x-scope qowt-word-para-0"><span style="text-decoration: underline;"><strong><span id="E250">Tech Stack</span></strong></span><span id="E252"></span></p> <p id="E253" class="x-scope qowt-word-para-0"><span id="E254"><strong>Frontend</strong>:</span></p> <ul> <li id="E255" class="x-scope qowt-word-para-1"><span id="E256">React, TypeScript, Material-UI</span></li> <li id="E257" class="x-scope qowt-word-para-1"><span id="E258">Module Federation (Micro-frontend architecture)</span></li> <li id="E259" class="x-scope qowt-word-para-1"><span id="E260">Vite, Vitest</span><span id="E262"></span></li> </ul> <p id="E263" class="x-scope qowt-word-para-0"><span id="E264"><strong>Backend</strong>:</span></p> <ul> <li id="E265" class="x-scope qowt-word-para-1"><span id="E266">Python 3.13, FastAPI</span></li> <li class="x-scope qowt-word-para-1">LangGraph (AI agent orchestration)</li> <li class="x-scope qowt-word-para-1"><span id="E270">LlamaIndex (RAG/vector search)</span></li> <li class="x-scope qowt-word-para-1"><span id="E272">AWS Bedrock</span></li> <li class="x-scope qowt-word-para-1"><span id="E274">DynamoDB, OpenSearch Serverless</span></li> </ul> </div> </div> <div id="pageBorders" class="style-scope qowt-page"></div> <div id="contentsContainer" class="style-scope qowt-page"> <div id="contents" class="style-scope qowt-page"> <p id="E277" class="x-scope qowt-word-para-0"><strong><span id="E278">Infrastructure:</span></strong></p> <ul> <li id="E279" class="x-scope qowt-word-para-1"><span id="E280">AWS (ECS Fargate, Lambda, API Gateway, S3)</span></li> <li id="E281" class="x-scope qowt-word-para-1"><span id="E282">Terraform, GitHub Actions</span></li> <li id="E283" class="x-scope qowt-word-para-1"><span id="E284">Docker, Kubernetes</span></li> <li id="E285" class="x-scope qowt-word-para-1"><span id="E286">Sentry, Langfuse (LLM observability)</span><span id="E288"><br></span></li> </ul> <p id="E289" class="x-scope qowt-word-para-0"><span style="text-decoration: underline;"><strong><span id="E290">What We're Looking For</span></strong></span></p> <p id="E291" class="x-scope qowt-word-para-1"><strong><span id="E292">Must Have:</span></strong></p> <ul> <li id="E293" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E294">5+ years of professional software engineering experience</span></li> <li id="E295" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E296">Strong React + TypeScript skills - you can architect complex frontend applications with good state management, performance, and testing</span></li> <li id="E297" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E298">Strong Python backend experience - FastAPI, Django, or Flask with async programming, clean architecture, and production-grade code</span></li> <li id="E299" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E300">System design skills - you can design scalable, maintainable systems and articulate trade-offs clearly</span></li> <li id="E301" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E302">API design expertise - REST, WebSockets/SSE, and understanding of distributed systems patterns</span></li> <li id="E303" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E304">Database proficiency - SQL and NoSQL (DynamoDB, PostgreSQL, OpenSearch), including query optimization and data modeling</span></li> <li id="E305" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E306">Testing mindset - you write comprehensive tests and advocate for quality across the team</span></li> <li id="E307" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E308">Ownership mentality - you take features from idea to production, proactively identifying and solving problems</span></li> <li id="E309" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E310">Strong communication - you can explain complex technical concepts to engineers and non-engineers alike, and write clear documentation</span></li> <li id="E311" class="qowt-li-1_0 qowt-list x-scope qowt-word-para-3"><span id="E312">Mentorship ability - you enjoy helping others grow and have experience guiding less experienced engineers</span></li> </ul> <p><strong><span id="E314">Nice to Have:</span></strong></p> <ul> <li id="E315" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E316">LLM/AI experience - LangChain, LangGraph, RAG pipelines, prompt engineering, or fine-tuning</span></li> <li id="E317" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E318">Production AI systems - experience with LLM observability (Langfuse), token management, streaming, and reliability patterns</span></li> <li id="E319" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E320">AWS expertise - Lambda, ECS, DynamoDB, OpenSearch, Bedrock, or similar cloud services</span></li> <li id="E321" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E322">Streaming architectures - SSE, WebSockets, event-driven systems</span></li> <li id="E323" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E324">Fintech/compliance background - AML, sanctions screening, KYC, or regulated industry experience</span></li> <li id="E325" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E326">Micro-frontend experience - Module Federation, independent deployability</span></li> <li id="E327" class="qowt-li-4_0 qowt-list x-scope qowt-word-para-3"><span id="E328">Infrastructure as Code - Terraform, CDK, or similar</span></li> </ul> <p id="E331" class="x-scope qowt-word-para-0"><span style="text-decoration: underline;"><strong><span id="E332">What Sets Senior Apart</span></strong></span></p> <p><span id="E334">We're looking for engineers who demonstrate:</span></p> </div> </div> <div id="pageBorders" class="style-scope qowt-page"></div> <div id="contentsContainer" class="style-scope qowt-page"> <div id="contents" class="style-scope qowt-page"> <ul> <li id="E337" class="qowt-li-3_0 qowt-list x-scope qowt-word-para-3" style="text-align: left;"><span id="E338">Technical leadership - You don't just complete tasks; you identify the right problems to solve and influence technical direction</span></li> <li id="E339" class="qowt-li-3_0 qowt-list x-scope qowt-word-para-3" style="text-align: left;"><span id="E340">Systems thinking - You consider the broader context: scalability, security, observability, and maintainability</span></li> <li id="E341" class="qowt-li-3_0 qowt-list x-scope qowt-word-para-3" style="text-align: left;"><span id="E342">Proactive communication - You surface risks early, propose solutions, and keep stakeholders informed</span></li> <li id="E343" class="qowt-li-3_0 qowt-list x-scope qowt-word-para-3" style="text-align: left;"><span id="E344">Quality advocacy - You raise the bar for testing, code review, and documentation across the team</span></li> <li id="E345" class="qowt-li-3_0 qowt-list x-scope qowt-word-para-3" style="text-align: left;"><span id="E346">Pragmatic decision-making - You balance ideal solutions with delivery timelines, making conscious trade-offs</span></li> <li id="E347" class="qowt-li-3_0 qowt-list x-scope qowt-word-para-3" style="text-align: left;"><span id="E348">Continuous learning - You stay current with industry trends and bring new ideas to the team</span></li> </ul> <p id="E351" class="x-scope qowt-word-para-0"><strong><span id="E352"><span style="text-decoration: underline;">Why Join Us</span>?</span></strong></p> <ul> <li id="E353" class="x-scope qowt-word-para-1"><span id="E354"><strong>Greenfield AI Product</strong>:&nbsp;</span><span id="E356">You'll help shape a product from early stages, not maintain legacy code. Your architectural decisions will have lasting impact.</span><span id="E358"><br></span></li> <li id="E359" class="x-scope qowt-word-para-1"><span id="E360"><strong>Technical Leadership</strong>:&nbsp;</span><span id="E362">Drive technical direction for a growing team. Mentor engineers and establish patterns that scale.</span></li> <li id="E363" class="x-scope qowt-word-para-1"><span id="E366"><strong>Cutting-Edge A</strong>I:&nbsp;</span><span id="E368">Work with the latest LLM technologies in production - LangGraph, RAG, multi-agent systems, and more.</span></li> <li id="E369" class="x-scope qowt-word-para-1"><span id="E372"><strong>Real Impact</strong>:&nbsp;</span><span id="E374">Our AI agents process thousands of compliance cases. You'll see your work making a difference within weeks.</span><span id="E376"><br></span></li> <li id="E377" class="x-scope qowt-word-para-1"><span id="E378"><strong>Startup-within-Enterprise</strong>:&nbsp;</span><span id="E380">Small, autonomous team with startup speed, backed by enterprise resources and stability.</span><span id="E382"></span></li> </ul> <p id="E387" class="x-scope qowt-word-para-1"></p> </div> </div> <p>&nbsp;</p><div class="content-conclusion"><p><strong>About us</strong></p> <p>Ebury delivers sophisticated, integrated solutions — business accounts, hedging, and financing — on a single platform with a seamless workflow. Our success is built on a simple premise and singular purpose: To help businesses operate and scale globally.&nbsp;</p> <p>Since its founding in 2009, Ebury has always been a fast-growing leader in fintech. Today, we bring together 1,800+ Eburians across nearly 70 cities and we’re always looking to add to our team.&nbsp;</p> <p>At the heart of our offering is a proprietary platform, purpose-built to help businesses seamlessly streamline and manage global cash flow. We focus on continuous product evolution and innovation to build the infrastructure for borderless growth and help our clients scale at every stage.&nbsp;</p> <p>The opportunities at Ebury are as diverse as our people, ranging from business development to engineering roles across our tech pillars.</p> <p>We believe in inclusion. We stand against discrimination in all forms and are against the intolerance of differences that makes us a modern and successful organisation. At Ebury, you can be whoever you want to be and still feel a sense of belonging no matter your story.</p></div>