{"id":3575567,"url":"https://alion.io/job/performativ-senior-front-end-engineer","title":"Senior Front-End Engineer","company":{"id":2569542,"name":"Performativ","domain":"performativ.com","url":"https://alion.io/company/performativ","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Jest","optional":false},{"name":"Next.js","optional":false},{"name":"Playwright","optional":false},{"name":"React.js","optional":false},{"name":"shadcn/ui","optional":false},{"name":"TypeScript","optional":false},{"name":"Vitest","optional":false},{"name":"AG Grid","optional":true},{"name":"JavaScript","optional":true},{"name":"pnpm","optional":true},{"name":"Radix UI","optional":true},{"name":"Tailwind CSS","optional":true},{"name":"Turborepo","optional":true}],"status":"live","first_seen_at":"2026-10-30T23:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-30T23:00:00Z","board_verified":false,"closed_at":null,"days_open":3,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":3},"description":"As a Senior Front-End Engineer, you will co-own the front-end experience for Performativ's trading and analytics platform, building high-performance interfaces used by wealth managers and financial institutions. This is a hands-on engineering role with direct ownership of architecture, implementation, and production outcomes.\n\n**About The Team 👥\n\n**The engineering team owns the platform that powers portfolio management, trading, analytics, reporting, compliance, and client engagement at Performativ. Front-end engineers work closely with backend engineers, product, and design to turn complex financial workflows into software that advisors can use every day.\n\nThe team ships continuously and gives engineers ownership over implementation decisions. On the front end, the current focus is scaling a Next.js and React architecture across increasingly sophisticated workflows while keeping performance, server and client boundaries, theming, and shared components under control.\n\n**About The Role 🎯\n\n**We are looking for a Senior Front-End Engineer to co-own the quality, performance, and architecture of our trading and analytics interfaces. This role is responsible for building production UIs, shaping front-end architecture, and raising the standard of our shared component infrastructure.\n\nYou will work closely with backend engineering, product, and design to ship financial workflows from requirements through production. You will co-own the end-to-end front-end scope, including server and client boundaries, hydration strategy, state management, performance, multi-tenant theming, testing, and the component library used across the platform.\n\nThis role requires deep React and TypeScript expertise, strong architectural judgment, and the ability to turn complex financial workflows into fast, usable interfaces. You need to be comfortable making implementation decisions independently and shipping production software without management overhead.\n\nThis role is based in Copenhagen. We work together from our city-center office, with working from home possible when there is a good reason. You should already be based in Copenhagen or be ready to relocate.\n\nWhat you'll do 📈\n\nBuild high-performance trading, analytics, and portfolio management interfaces used by wealth management professionals.\n\nCo-own front-end architecture across Next.js 15, React Server Components, TypeScript, and our shared application infrastructure.\n\nDefine server and client boundaries, hydration strategies, and state patterns that keep the platform responsive as complexity grows.\n\nScale our shared component library and multi-tenant theming across the platform.\n\nImprove runtime performance, bundle size, rendering behavior, and application responsiveness.\n\nShip production features quickly while making architectural decisions that hold up as the product scales.\n\nUse AI coding agents where they improve engineering throughput while maintaining control over code quality and implementation decisions.\n\nStrengthen front-end testing and delivery across Vitest or Jest, Testing Library, Playwright, and CI/CD workflows.\n\nCo-own implementation decisions from product outcome through production deployment.\n\nWhat we're looking for 🔍\n\nHave built sophisticated production web applications with React and TypeScript and can structure front-end codebases that continue to work as product complexity grows.\n\nUnderstand modern React architecture, including React Server Components and the Next.js App Router, or can demonstrate the technical depth to become productive with them quickly.\n\nHave shipped production work using AI coding agents and understand where they improve engineering output and where direct engineering judgment is required.\n\nHave improved front-end performance through decisions around bundle size, hydration, rendering, data fetching, and runtime behavior.\n\nAre comfortable managing server state with TanStack Query and can make deliberate decisions about colocated state and client state libraries.\n\nHave built or extended component systems using tools such as Radix, shadcn/ui, or custom design systems.\n\nUnderstand usability, accessibility, and interaction design well enough to make sound UX decisions without treating design as somebody else's problem.\n\nHave shipped tested production software using tools such as Vitest or Jest, Testing Library, Playwright, and automated CI/CD pipelines.\n\n**Preferred Experience ➕\n\n**\n\nHave worked on trading, investment management, portfolio analytics, or other data-intensive financial applications.\n\nHave worked with AG Grid or comparable data-grid infrastructure for complex datasets and interactions.\n\nHave worked in a pnpm and Turborepo monorepo with generated API types from OpenAPI specifications.\n\nHave designed front-end systems supporting multiple tenants, brands, or configurable themes.\n\nHave mentored engineers or raised engineering standards without moving away from hands-on development.\n\nWhat we can offer you 🌱\n\nWork that reaches production fast. We ship weekly. Your work will be used by advisors and financial institutions within days, not quarters.\n\nColleagues who set a high bar. Our team comes from Goldman Sachs, McKinsey, BCG, and Amazon. Standards are high. Politics are absent.\n\nCareer compression. People here take on scope in twelve months that takes five years elsewhere. If you can carry it, we will give it to you.\n\nDirect access to founders, customers, and the market. You will sit in the rooms where decisions get made.\n\nBacking from leading venture funds, and a mandate to become the European standard rather than a regional alternative.\n\n**About Performativ 🚀\n\n**Wealth management runs on software built for a different era. Batch files. Overnight reconciliation. Client reports assembled by hand. Advisors spend more time fighting their systems than advising clients. The industry has accepted this for thirty years.\n\nWe are replacing that layer. Performativ is one platform for portfolio management, reporting, compliance, and client engagement, built from the ground up for how wealth is actually managed today. Banks, family offices, and independent advisors across Europe run on it.\n\nWe are a scaleup, not a startup. The product is live, the customers are real, and the growth is ahead of plan. We intend to be the system European wealth management runs on. That is not positioning. It is the plan we are executing against.\n\nYou can read more about our product at performativ.com\n\nThe bar 🔥\n\nWe are builders. We move fast, we say what we think, and we do not manage each other. Autonomy is the default, which only works if you are the kind of person who does not need to be told twice.\n\nThis is not a role for someone looking to coast inside a growing company. It is a role for someone who wants scope, wants pressure, and wants to point at something in two years and say they built it. If that is you, apply. 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