Senior Backend Engineer - AI Automation

About MarshmallowWe build financial products that accelerate the economic freedom for people who move across borders. We started with car insurance — insuring over a million drivers — and we’re scaling beyond. Tens of millions of people move countries each year, facing overlooked financial challenges. Our future is in building financial products around their needs to positively impact their lives.How we workWe’re really proud of the culture we’ve created. We push for progress every day, because we know that we’ll only hit big milestones by taking lots of smaller steps. We’re always open to helping our team mates, sharing our ideas, experience and knowledge to solve problems together. We take risks, think creatively and experiment relentlessly to meet our customer’s needs, and never pass blame when things go wrong. We encourage people at all levels to take ownership of their work, and to be bold in challenging how we do things. Everyone has a voice and the opportunity to make an impact.And autonomy and ownership are only possible with clear direction. That’s why we collaborate to do in-depth planning twice a year, and make sure we leave with clear goals and objectives that flow from top to bottom. To make sure we’re as aligned as possible across functions, most of our work rolls up into three tribes; Acquisition, Retention & Claims. Each tribe has multiple teams embedded in it, working cross-functionally to do great work.We’re so excited for all of the challenges up ahead, and we need more people to help us tackle them! If life at Marshmallow sounds like it could be for you, explore our Culture Handbook to find out more.Engineering at MarshmallowOur engineers are at the heart of the solutions. They work on product builds from start to finish, solving lots of challenges to help us build fast and scale up! Our engineers cover a range of skills across frontend, backend, full stack, iOS, and Android, and work alongside designers, data scientists, researchers, and product managers within our product teams.Our product teams include: Pricing, Fraud Core, Ops Platform, Claims, Growth, Direct, In-Policy, Renewals, Mobile, and Core. Each team sets its roadmap and actively pushes our codebase forward.If you're curious about our Engineering culture and ways of working, check out the Engineering Handbook.And check out our Marshmallow App Demo as well here!About the team you will be joiningOur team specializes in seamlessly integrating agentic AIs into customer support workflows, ensuring high-quality interactions at scale while lowering operational costs. By deploying autonomous agents that can handle a broad range of inquiries, we help reduce conversation overhead and allow human specialists to focus on more complex tasks. Collaborating closely with customer service leaders, we ensure our solutions maintain the company’s voice and deliver exceptional experiences across all support channels.What you'll be doingDevelop autonomous AI agents using modern frameworks and APIs to streamline insurance processes and automate customer operations.Build a scalable backend platform to support rapid development, deployment, and management of AI solutions.Create reusable, declarative workflow definitions for AI agents to guide operations and decision-making.Apply advanced prompt engineering and orchestration to build reliable AI solutions with consistent performance.Advance operational excellence with monitoring, logging, and alerting systems to ensure reliable AI performance and positive impact on key business metrics.Collaborate with stakeholders to gather requirements, develop and test solutions, and support deployment and production systems.What we’re looking for from you6+ years of software engineering experienceExpertise in Java and Spring, and eagerness to learn moreExperience with developing and scaling complex microservices systemsPrevious experience with identifying, analyzing, and resolving system availability, reliability, and performance issuesExperience mentoring and guiding more junior members of the teamFamiliarity with AI frameworks, prompt engineering, and workflow orchestration for building autonomous agents is a plusExperience with TypeScript and a declarative framework, such as React to model user interfaces or interactive workflows is a plus.Our Tech StackJava 23 μServicesSpring Boot with Spring CloudMySQLTerraformDockerAWS FargateEvent SourcingDatadog, Opslevel, TeamCityPerks of the jobFlexible working: Spend 3 days a week with your team in our new collaborative London office. The rest is up to you*If this arrangement doesn’t work, don’t let it hold you back. We’re always open to making reasonable adjustments if this is a barrier to you in any way. Let us know and we’ll talk about our options. Competitive bonus scheme - designed to reward and recognise high performance Flexible benefits budget - £50 per month to spend on a Ben Mastercard meaning you get your own benefits budget to spend on things you want. Whether that’s subscriptions, night classes (puppy yoga, anyone?), the big shop or a forest of houseplants. Pretty much anything goes. Learning and development – Personal budgets for books and training courses to help you grow in your role. Plus 2 days a year - on us! - to further your skillset Mental wellbeing support – Access therapy and mental health sessions through Oliva Private health care - Enjoy all the benefits Vitality has to offer, including reduced gym memberships and discounts on smartwatches Medical cash plan - To help you with the costs of dental, optical and physio (plus more!)Tech scheme - Get the latest tech for less Our processWe break it up into 3 stages:Initial call with Tech Talent Acquisition team (35-45 minutes)An experience & culture interview with one of our Leadership team to check that your ways of working align with our processes, mission, and values (1 hour)Tech interview with two engineers that is centred on pair programming, systems design, and technical questions (1 hour 30 minutes)Everyone belongs at MarshmallowAt Marshmallow, we want to hire people from all walks of life with the passion and skills needed to help us achieve our company mission. To do that, we're committed to hiring without judgement, prejudice or bias.We encourage everyone to apply for our open roles. Gender identity, race, ethnicity, sexual orientation, age or background does not affect how we process job applications.We're working hard to build an inclusive culture that empowers our people to do their best work, have fun and feel that they belong.Recruitment privacy policyWe take privacy seriously here at Marshmallow. Our Recruitment privacy notice explains how we process and handle your personal data. To find out more please view it here.

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