Messy spend management is tricky business. And tedious processes are a lose-lose situation for all involved, not just finance. At Pleo, we're changing that. We build spend solutions that make managing money seamless, empowering, and surprisingly effective for finance teams and employees alike - with a vision to help all businesses ‘go beyond’. The word ‘Pleo’ actually means ‘more than you’d expect’, and living by that mantra has been the secret to our success over the last 10 years. Now, we’re at a pivotal moment in our journey; every move we make has a direct impact on our 40,000+ customers, our business, and our collective success. We need people who take pride in uncovering customer needs, who turn complex problems into simple solutions, challenge the way things are done (respectfully), and always aim high. With great ambitions driving us forward, we can’t say we’ve got this whole thing figured out. And frankly, that’s half the fun! What we can say is that we’re a driven, progressive, and, importantly, a kind bunch of 850+ people from over 100 nationalities, all committed to delivering the future of business spending, together. We at Pleo are on a mission to make spend management surprisingly effective and empowering. We build a product used by thousands of companies across Europe, and our web app is a core part of that experience. We’re hiring a Staff Engineer to join Web Core — our frontend platform team. The Web Core team exists to enable product engineers across Pleo to build and ship high-quality web software. We own the foundations of the web stack (tooling, patterns, architecture, reliability of the developer workflow), and we partner closely with product teams to make delivery faster, safer, and more consistent. What Web Core does - Build and maintain a web platform that teams use to efficiently deliver excellent web experiences. - Drive technical excellence across Pleo’s web applications (architecture, patterns, quality, performance, accessibility). - Improve developer experience (DX) through tooling, CI reliability, and fast feedback loops. - Steward shared web foundations (libraries, conventions, golden paths) and support adoption. - Facilitate and contribute to the broader frontend community at Pleo. What you’ll be doing As a Staff Engineer in Web Core, you will be a force multiplier. You’ll work across teams and systems to remove constraints and raise the bar for how we build and run web software. - Set technical direction for parts of our web platform, and drive alignment across teams. - Identify the biggest leverage opportunities for web engineering at Pleo (quality, delivery speed, reliability) and execute on them. - Partner with product engineers and leads to design solutions that fit the wider ecosystem. - Build and evolve internal tooling, frameworks, and golden paths that scale across teams. - Improve the reliability and usability of our CI and local developer workflows. - Coach and mentor engineers, and help grow technical leadership in the frontend community. - Contribute hands-on in code. This role blends strategy and execution. You should expect to be coding a meaningful part of the time. You’ll bring solid experience with - Building and maintaining complex web applications at scale. - TypeScript and modern frontend engineering (React experience is a plus). - Designing maintainable systems (including frontend-facing APIs and platform boundaries). - Testing practices and tooling (unit, integration, end-to-end) and a strong quality mindset. - CI/CD and developer productivity improvements (faster, more reliable feedback loops). - Observability and monitoring practices for web systems (metrics, logging, tracing, alerting). - Working effectively across teams and stakeholders, and communicating tradeoffs clearly. Your colleagues would say you - Lead by example and raise the bar with pragmatism and care. - Communicate clearly, listen well, and bring people along in decisions. - Enjoy breaking down complex problems, gathering input, and driving to a solution. - Coach others and create space for people to grow. - Prefer progress over perfection, while still caring deeply about quality. Check out our Engineering Hiring Blog Post to get an in-depth overview of our hiring process and what to expect. Enjoy the reading! Show me the benefits! - Your own Pleo card (no more out-of-pocket spending!) - Lunch is on us - with catering in our Lisbon, Copenhagen and London offices or a monthly lunch allowance paid directly together with your salary in other markets 🍜 - Private health insurance to ensure you’re fit in body and mind to do your best work - Option to purchase 5 additional days of holiday - Wellbeing days - fully paid days off designed for a slower pace, allowing you to take time to recharge and prioritise self-care - We provide access to MyndUp to give our employees access to free mental health and wellbeing support with great success so far ❤️‍🩹 - Access to LinkedIn Learning - acquire new skills, stay abreast of industry trends and fuel your personal and professional development continuously - Paid parental leave - we want to make sure that we're supportive of families and help you feel that you don't have to compromise your family due to work 👶 About your application English first. Since it's our company language, please submit your application in English. You’ll be using it a lot if you join us. A fair look for everyone. Our talent team reads every single application to ensure the process is fair. To keep things running smoothly, we only accept applications through our system—our support team can’t pass on calls or emails. Diversity drives us. We can only reach our goals if our team reflects the world around us. That starts with you hitting apply, even if you don't tick every single box. We encourage people from all backgrounds and experiences to join us. Interview at your best. We want you to feel comfortable throughout the process. If you have any accessibility requirements or need a specific format, email belonging@pleo.io. We’ll design a process that works for you. Your data is safe. When you apply, we process your personal data as a data processor. For more information on how Pleo processes personal data, read our Privacy Policy here. Applying for multiple roles? Nothing is stopping you, and we assess every role independently. However, we do look for alignment, so make sure you can explain why your interest and experience are right for each specific role. Reapplying. If you’re applying for the same role again, please wait six months from your last decision before hitting submit.

• Own our fundamental cloud services and tooling. You will manage our cloud networks, security policies, and other low-level cloud services. Our engineering team provisions cloud infrastructure on top of this foundation, using infrastructure as code tools like Terraform. • Own our application platform. You will administer our Kubernetes clusters to meet the needs of the engineering team. You will explore new tools and services that improve the security and reliability of our applications running on the platform. • Own our developer experience. You will assist engineers with best practices for using and deploying to the platform. You will administer our CI/CD and other internal tools to make this as easy as possible.

BioLM is building an AI platform for molecular discovery, enabling researchers to design and analyze biological sequences using state-of-the-art language models. We are seeking a Lead Platform Engineer to own the architecture, development, and evolution of our core product platform. You'll work directly with the founding team to make high-leverage technical decisions - and be accountable for the reliability, scalability, and quality of what we ship. Responsibilities - Ship products and features with startup-caliber velocity and a high bar for quality - Lead the development of agentic workflows for molecular design and discovery - Build and extend platform UI features that enable researchers to create, manage, and deploy fine-tuned protein and DNA models - Integrate our Console, Builder, and Solutions apps into a seamless full-stack experience for molecular development - Build API integrations with sequence and assay ordering providers, including internal data modeling and full-stack UI development Experience - 5+ years of full-stack engineering experience, with a track record of shipping production systems end-to-end, from infrastructure to user-facing interface - Led technical projects - scoped work, delegated effectively, and delivered on time - Designed and operated cloud infrastructure at scale - Built and maintained complex third-party integrations or API-driven systems - Brought product instincts and UI sensibility to ambiguous, early-stage problems Required Qualifications - Deep proficiency in Python and React/Node.js - Strong command of cloud infrastructure (AWS or equivalent), CI/CD, and Docker - Solid understanding of relational data modeling and API design patterns - Experience with REST, WebSockets, and modern integration patterns including agentic/MCP-based systems - A good eye for UI design and the product thinking to match Preferred Qualifications - Experience building tooling for scientific, research, or ML/AI-adjacent workflows - Familiarity with interactive data visualization (D3.js, Plotly, Vega-Lite) - Experience integrating or deploying large-scale ML model APIs or agentic AI systems - Background or genuine interest in biology, bioinformatics, or computational life sciences

• Design, implement, and maintain cloud-based infrastructure and services at the intersection of agentic AI and petabytes of multimodal patient data. • Own specific critical platform components end-to-end. • Drive technical standards, architectural reviews, and best practices across the engineering department. • Mentor junior/mid-level engineers. • Contribute to the design and evolution of our product architecture across a number of use cases of scalable scientific computing, data processing and AI engineering. • Collaborate with software engineers, data engineers, researchers and data scientists to understand their needs and implement solutions that enhance their productivity. • Support and improve our CI/CD pipelines, development workflows, and security practices. • Participate in incident response to ensure high availability and reliability. • Contribute to maintaining the confidentiality, integrity and availability of data (security by design, vulnerability reduction). • Improve the modularity and the performance of our solution. • Improve the observability of the stack and increase its resiliency. • Contribute to and improve our development tooling and processes. • Participate in a team wise shared on-call rotation.