Senior Software Engineer - Frontend Major

Title: Senior Software Engineer - Frontend Major Location: New York HI, WE’RE BACK MARKET. We’re here to help make tech reliable, affordable, and better than new. We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new. Yep, you read that right. Turns out refurbished tech is way better for the planet than new. In fact, With every device purchased on Back Market, our positive impact on the planet grows. From our Customer Care representatives to our software engineer, every individual at Back Market cuts the planet — and consumers — a break. Our mission is simple: to do more with what we already have. Are you ready to join us? About the team We are looking for a Senior Software Engineer to join our Appmericans squad 💚. The US Engineering Team is a product engineering team focused on growing Back Market's customer base and improving product-market fit for American shoppers. We build web and mobile experiences that make refurbished technology easier to discover, compare, trust, and purchase. We are looking for a Senior Software Engineer with a strong frontend focus to help us build high-quality digital experiences for the US market. Your primary area of ownership will be frontend engineering, while your full-stack capabilities will help you design APIs, contribute to backend services, and deliver complete end-to-end features. You will work with product managers, designers, frontend and backend engineers, mobile engineers, data partners, and other technical teams to turn customer needs into simple, scalable, and measurable product experiences. You will contribute to experiences such as deals discovery, product pages, promotions, cart and checkout improvements, order tracking, and features that help customers feel more confident choosing refurbished technology. We’re looking for versatile engineers who show strong ownership and are motivated to take on new challenges across the technical stack while helping us move our technology forward. You will be working in an agile "build it and run it" environment where engineering teams build, launch, monitor and support the product that they own. Driven by the desire to craft outstanding products, you understand how to deliver seamless user experiences at scale. We are looking for passion in creating systems by producing clean, consistent and well-organised code. As well as a good team player supporting colleagues and creating a learning and sharing environment! What will be your next missions? - Own frontend features from discovery through production, including technical design, implementation, testing, rollout, monitoring, and iteration. - Design and implement responsive, accessible, and reliable web experiences using JavaScript, TypeScript, Vue 3, and Nuxt 3. - Build server-side-rendered experiences and consider browser behavior, network performance, caching, hydration, and resilience. - Develop reusable interfaces with component libraries and established design patterns. - Improve web performance, accessibility, internationalization, and overall frontend quality. - Translate customer insights into product experiences that make refurbished technology easier to discover, compare, and purchase. - Support experimentation through feature flags, instrumentation, controlled rollouts, and data-informed iteration. - Partner with backend engineers to define clear API contracts and integrate services built with Python and Go. - Contribute targeted backend changes when needed to deliver complete, end-to-end features. - Use product analytics and observability data to understand customer behavior, identify issues, and guide improvements. - Write and maintain unit, integration, end-to-end, visual regression, and accessibility tests as appropriate. - Deliver high-quality, non-disruptive releases and take ownership of quality and customer experience improvements. - Participate in incident response and an on-call rotation as appropriate for the role. - Write clear, maintainable code and provide thoughtful code reviews that improve quality across the team. - Share knowledge through documentation and technical discussions. - Take ownership of technical projects, manage dependencies, and balance product impact with delivery timelines. Our technical environment Backend stack: Python - FastAPI , SQLAlchemy, Celery, Golang, Django (being phased out) Frontend stack: VueJS, Typescript, Nuxt, Revolve ( our design system) Data: PostgreSQL, Redis, Kafka, RabbitMQ, BigQuery Infrastructure: GCP, Kubernetes, Docker, Datadog, ArgoCD, CircleCI, Github As a Senior Engineer: Produce, Innovate & Share - Facilitates meaningful discussions around complex issues. - Suggests or makes improvements for existing designs and architecture for quarter-bounded projects or mission-critical areas in their squad. - Explores technologies with sizable potential impact for the team. - Is able to contribute actively to high impact chaos mitigation. - Identifies and advocate for prioritization of tasks that can optimize delivery Required Skills and Experience - 5+ years of professional software engineering experience, with strong experience building production frontend applications. - Strong proficiency in JavaScript and TypeScript. - Professional experience with a modern frontend framework such as Vue, React, or a similar technology. Experience with Vue 3 and Nuxt 3 is strongly preferred, but transferable experience is welcome. - Strong understanding of frontend architecture, component design, state management, routing, API integration, and browser fundamentals. - Experience building responsive and accessible user interfaces with HTML and CSS. - Good understanding of server-side rendering, frontend performance, caching, and web application behavior. - Experience delivering production features with attention to accessibility, SEO, internationalization, privacy, and legal requirements. - Experience working with component libraries, design systems, or reusable frontend patterns. - Experience writing and maintaining frontend tests, including unit, integration, end-to-end, visual regression, or accessibility tests. - Solid understanding of APIs and microservices, with the ability to collaborate effectively with backend engineers and reason about service boundaries. - Working knowledge of at least one backend language, preferably Python or Go, and the ability to make or review backend changes when needed. - Experience with production releases, CI/CD, feature flags, monitoring, and incident management. - Strong communication skills and the ability to explain technical decisions clearly to product, design, engineering, and business stakeholders. Recruitment process - HR screening - (45 min) - Coding & Testing module - Frontend (60 min) - System design feature (60 min) - Tech leadership + Meet your manager ( 75 min) - BM Values (45 min) Hybrid policy - NY office 3 days / week at the office - Monday is mandatory WHY SHOULD YOU JOIN US ? ✌🏼 At Back Market, we’re committed to hiring and supporting diverse teams of people from all backgrounds, experiences, and perspectives — it’s one of the reasons we’re such a high-scoring certified B Corp company (93.2). No matter your role and seniority level, you’ll enjoy impact-driven work with hands-on career development in an innovative, driven, and fast-paced environment — with benefits to match, like: - A mission driven work environment where your day to day makes an impact on the planet. Seriously. - Hybrid work environment, with 2 remote days a week and 1 remote work week per quarter, plus 3 flex days. - Employee Resource Groups, including mentorship programs, comprehensive accessibility policies, and cultural competency training. At Back Market, we strive to create a workplace that embodies the world we’re trying to change. We’ve embedded our diversity, equity, and inclusion principles into our DNA — from dedicated staff to employee resource groups to our company values. We know that the perfect background for a role doesn’t mean the perfect fit — we encourage you to apply for a role even if you think you may not have all the qualifications. If reasonable accommodations are needed for the interview process, please do not hesitate to discuss this with the Talent Acquisition Team.