Lead- / Senior Fullstack Engineer: React / Next.js - onsite or offside

EinleitungFor Engineers Who Operate at the Highest LevelReact / Next.js / Node.js / TypeScript / Cloud ArchitectureHamburg or Remote (EU) | Equity IncludedMost engineering roles want “good developers”.This one does not.This role is for people who build systems others consider impossible. For engineers who see patterns in complexity, who design clean architectures under pressure, who question defaults and then outperform them.A hyper-scaling tech company with a category-defining platform is searching for a rare kind of Fullstack Engineer: someone who combines deep technical mastery with architectural intuition, rapid execution, and the ability to think far beyond feature boundaries.If you’re one of the few who genuinely stand out, you’ll feel at home here.What Makes This Role UniqueYou’ll work in the core engineering group that pushes the platform to its next scale level.Your architectural decisions will have immediate product and business impact.You’ll solve challenges without templates, problems no one has solved yet.You get real equity, because people at this level shape the company’s trajectory.This is not for developers who want comfort.This is for those who want challenge, autonomy, and mastery.Deine AufgabenArchitecture & System EngineeringDesign and evolve distributed fullstack architectures using React/Next.js + Node.jsShape API models (REST, GraphQL), data flows, and integration logicDrive the technical vision for scalability, reliability, and long-term maintainabilityFullstack Engineering ExcellenceBuild highly performant user interfaces with React, Next.js, HTML, CSS, JSDevelop backend services, APIs, integrations, and complex logic in Node.jsImplement advanced rendering (SSR/SSG/ISR, Server Components)Build PWAs and contribute to native application features where relevantPerformance, Observability & ScaleEngineer systems for low latency, global distribution, and resilienceLead caching, data modeling, and optimization strategiesEnsure observability and robustness in mission-critical flowsInfluence & LeadershipMentor other engineers, lead discussions, challenge assumptionsDefine engineering principles, coding standards, and architectural guardrailsCollaborate closely with Product, Design, R&D, and Platform EngineeringDein ProfilWho You Are (Top-Tier Only)You don’t just “know” the stack, you command it:Deep expertise in React, Next.js, Node.js, TypeScriptStrong fundamentals in JavaScript, CSS, HTML and UI/UX best practicesStrong experience with REST & GraphQL API designExperience with PWAs and/or native appsSolid understanding of SQL/NoSQL systems: MySQL, MongoDB, InfluxDBYou understand system design: patterns, trade-offs, complexityYou thrive in fast-scaling environmentsYou learn fast. You build fast. You think ahead.And above all:You operate at a level where others come to you for clarity, structure, and direction.BenefitsWhat Awaits YouA technically ambitious environment that pushes you to your highest levelA team of exceptional engineers, no average performersA platform with huge growth potential and increasing complexityReal ownership through equity participationHamburg HQ or fully remote (EU)A culture defined by intensity, trust, curiosity and momentumThis is a place for high performers who want impact, autonomy, mastery and scale.----------------------------------------About the TeamYou’ll join a multidisciplinary engineering group that values depth, precision, and long-term thinking.Flat hierarchy, strong collaboration, high speed.A team where passion, excellence, and ambition are non-negotiable.People here don’t just develop,They build what others can’t.----------------------------------------If you are a top-tier Fullstack Engineer, you’ll know it.And if you are, this opportunity will speak to you immediately.Reach out and I’ll walk you through the real challenges, vision, and expectations, confidentially.Über unsFinde den Job, der zu Dir passt - mit Deinem Karrierebegleiter an Deiner Seite. Wir geben nicht nur Unternehmen ein Gesicht, wir geben auch Deiner Karriere die richtige Bühne. Bei workidentity bringen wir Dich mit Arbeitgebern zusammen, die zu Deinen Zielen, Werten und Deinem Potenzial passen. Ob Du den nächsten Karriereschritt planst, eine neue Herausforderung suchst oder Dich strategisch neu ausrichten möchtest: Wir sind an Deiner Seite. Was uns für Dich besonders macht? Zugang zu exklusiven ChancenViele spannende Positionen werden nicht öffentlich ausgeschrieben. Wir öffnen Dir diese Türen zu Unternehmen und Projekten, die zu Dir passen.Passgenaues MatchingWir verbinden Erfahrung und Marktkenntnis mit moderner Technik. Das Ergebnis: Angebote, die fachlich UND menschlich zu Dir passen.Persönliche BegleitungVom ersten Gespräch bis zur Vertragsunterschrift sind wir an Deiner Seite. Wir hören zu, geben klares Feedback und unterstützen Dich bei den nächsten Schritten.Langfristige PerspektiveWir denken an Deine gesamte Karriere, nicht an eine schnelle Vermittlung. Ob Aufstieg, Wechsel oder Neuausrichtung: wir planen nachhaltig mit Dir.Vielfalt als HaltungUnterschiede machen uns stärker. Als Teil der Charta der Vielfalt leben wir eine Kultur, die Diversität fördert und individuelle Potenziale sichtbar macht.