Tech Lead Fullstack Engineer: React.js / Next.js / Node.js

workidentity GmbH
Hamburg, Germany
yesterday

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Hamburg, Germany

Tech stack

HTML
JavaScript
API
CSS
Mobile Application Development
Global Distribution Systems
MongoDB
MySQL
Node.js
NoSQL
Next.js
SQL Databases
Data Streaming
Systems Integration
TypeScript
React
Caching
Backend
Low Latency
InfluxDB
Build Tools
GraphQL
Api Design

Job description

  • Design and evolve distributed fullstack architectures using React/Next.js + Node.js
  • Shape API models (REST, GraphQL), data flows, and integration logic
  • Drive the technical vision for scalability, reliability, and long-term maintainability

Fullstack Engineering Excellence

  • Build highly performant user interfaces with React, Next.js, HTML, CSS, JS
  • Develop backend services, APIs, integrations, and complex logic in Node.js
  • Implement advanced rendering (SSR/SSG/ISR, Server Components)
  • Build PWAs and contribute to native application features where relevant

Performance, Observability & Scale

  • Engineer systems for low latency, global distribution, and resilience
  • Lead caching, data modeling, and optimization strategies
  • Ensure observability and robustness in mission-critical flows

Influence & Leadership

  • Mentor other engineers, lead discussions, challenge assumptions
  • Define engineering principles, coding standards, and architectural guardrails
  • Collaborate closely with Product, Design, R&D, and Platform Engineering

Requirements

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., You don't just "know" the stack, you command it:

  • Deep expertise in React, Next.js, Node.js, TypeScript
  • Strong fundamentals in JavaScript, CSS, HTML and UI/UX best practices
  • Strong experience with REST & GraphQL API design
  • Experience with PWAs and/or native apps
  • Solid understanding of SQL/NoSQL systems: MySQL, MongoDB, InfluxDB
  • You understand system design: patterns, trade-offs, complexity
  • You thrive in fast-scaling environments
  • You 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., * A technically ambitious environment that pushes you to your highest level

  • A team of exceptional engineers, no average performers
  • A platform with huge growth potential and increasing complexity
  • Real ownership through equity participation
  • Hamburg HQ
  • A culture defined by intensity, trust, curiosity and momentum

Benefits & conditions

What Makes This Role Unique

  • You'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., 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 Chancen Viele spannende Positionen werden nicht öffentlich ausgeschrieben. Wir öffnen Dir diese Türen zu Unternehmen und Projekten, die zu Dir passen.

Passgenaues Matching Wir verbinden Erfahrung und Marktkenntnis mit moderner Technik. Das Ergebnis: Angebote, die fachlich UND menschlich zu Dir passen.

Persönliche Begleitung Vom ersten Gespräch bis zur Vertragsunterschrift sind wir an Deiner Seite. Wir hören zu, geben klares Feedback und unterstützen Dich bei den nächsten Schritten.

Langfristige Perspektive Wir denken an Deine gesamte Karriere, nicht an eine schnelle Vermittlung. Ob Aufstieg, Wechsel oder Neuausrichtung: wir planen nachhaltig mit Dir.

Vielfalt als Haltung Unterschiede machen uns stärker. Als Teil der Charta der Vielfalt leben wir eine Kultur, die Diversität fördert und individuelle Potenziale sichtbar macht.

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