• Own and evolve frontend systems that span multiple product areas, ensuring consistency, quality, and scalability • Partner with engineering leadership, product, and design to shape frontend technical strategy and long-term direction • Lead high-impact initiatives such as architectural evolution, performance improvements, or major UX foundations • Establish and uphold frontend standards around component design, state management, accessibility, and testing • Act as a force multiplier for the team: guiding technical decisions, reviewing designs, and mentoring engineers • Help define how frontend engineering is practiced as the company grows

• Lead the development and evolution of critical frontend features for an Artificial Intelligence platform using React or Angular; • Architect and implement end-to-end project setup and configuration flows via the user interface; • Design and develop the platform's informational layer, including observability dashboards, model status panels, and complex data visualizations; • Implement model deployment flows through the UI with deep integration to backend APIs; • Develop production monitoring screens and components with real-time updates; • Define componentization, performance, and accessibility standards for the platform frontend; • Lead frontend technical reviews and ensure architectural consistency between the UI, design system, and APIs.

• Design of sophisticated user interfaces for use by business stakeholders to manage a machine learning based marketing system • Implement design as a web application using React • Integrate with APis provided by the backend development team • Contribute to solution design workshops to advise on implementation approaches • Partner with client stakeholders, and team members, to gather business requirements, collaborate on design decisions, and translate them into technical and design requirements. • Operate within an iterative delivery team using Agile delivery tools and practices.

Role Description As a Senior Frontend Engineer at Simple Machines, you’ll be at the heart of groundbreaking projects, collaborating closely with both our talented internal team and forward-thinking clients. In this hands-on role, you'll drive the development of sophisticated, scalable solutions, working with our high-performing engineering teams to deliver user interfaces for products used by data science and ML teams. If you’re passionate about solving complex problems and pushing the boundaries of what’s possible, this role offers the perfect platform for you to make a real impact. Key Responsibilities - Design of sophisticated user interfaces for use by business stakeholders to manage a machine learning based marketing system - Implement design as a web application using React - Integrate with APIs provided by the backend development team - Contribute to solution design workshops to advise on implementation approaches - Partner with client stakeholders, and team members, to gather business requirements, collaborate on design decisions, and translate them into technical and design requirements - Operate within an iterative delivery team using Agile delivery tools and practices Qualifications - Strong written and verbal English - A consultative approach to software development and software engineering - Strong experience with frontend development tools including React.js, Redux, Tailwind, Typescript - Past project experience with large scale web services - Previously designed user interfaces that catered for complex business use cases - Experience eliciting business requirements and translating them into technical and design requirements - Familiarity with various git workflows and ability to tailor them to project needs - Experience of unit and integration testing and test automation for React - A passion and proven background in picking up and adopting new technologies on the fly Requirements - You must be based in Poland with citizenship or full-time working rights to be considered for the opportunity - This is a fully-remote role, on either a B2B or Permanent basis