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$88,000–$132,000/yr
Germany Austria

  • Own features end-to-end, from idea and prototype to production release.
  • Engage directly with customers and sales teams to turn pain points into engineering priorities.
  • Run product discovery hypotheses and validate with lightweight experiments using data.

Node.js TypeScript NestJS React German

20 jobs similar to Senior Fullstack Engineer

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$87,000–$131,000/yr
Europe

  • Own features end-to-end — from hypothesis and prototype through to production release — for a product used by thousands of companies across Europe.
  • Lead product discovery by designing and running rapid experiments to validate ideas before committing to large-scale builds.
  • Maintain close, recurring contact with customers, partners, and Sales to surface real pain points and translate them into product decisions.

The company is an early-stage, European-headquartered startup building an AI-powered phone assistant for small and medium-sized businesses. Having grown from a handful of people to ~50 in under two years, it offers a high-ownership, low-bureaucracy environment with direct impact on product and company direction.

$86,400–$129,600/yr
Europe

  • Own features from discovery through implementation and continuous improvement.
  • Build scalable applications using TypeScript, React, Node.js, and NestJS.
  • Work directly with customers to understand challenges and validate solutions.

They develop AI-powered communication solutions that help businesses automate customer interactions. The company is one of Europe's fastest-growing AI companies, with a culture focused on ownership, deep work, and customer impact.

Europe

  • Own features end-to-end: from discovery and hypothesis through architecture, implementation, and release.
  • Maintain close, recurring contact with customers, partners, and the Sales team to surface real pain points and translate them into product decisions.
  • Take radical ownership of initiatives — move things forward independently without waiting for sign-offs.

A seed-stage AI voice communication startup headquartered in Vienna, Austria, building an AI phone assistant platform used by thousands of small and medium-sized businesses across Europe. The company is a fast-growing, high-autonomy startup with a focus on the German-speaking market and European data sovereignty.

Germany

  • Act as the technical bridge between product and customer setups, translating business requirements into production-ready implementations.
  • Lead end-to-end rollouts of AI assistant configurations in production, including workflows, logic, data flows, prompts, and guardrails.
  • Implement integrations with third-party systems via APIs and webhooks, covering CRMs, calendars, ticketing, payments, and common auth patterns.

This company builds AI phone assistants for small and medium-sized businesses. The team is lean (~50 people) and growing rapidly with a strong engineering culture and a proprietary orchestration layer built in-house.

Europe

  • Develop and maintain modern full stack web applications with a strong focus on back-end architecture and scalability.
  • Design and implement AI-powered features and intelligent workflows, building reliable and secure cloud-native services.
  • Collaborate with cross-functional teams, contribute to architecture discussions, and promote engineering excellence and AI adoption.

Sigma Software develops scalable products for healthcare and life sciences, focusing on scientific computing, AI-powered workflows, and cloud-native engineering. The company values engineering excellence, collaboration, and continuous learning, providing a supportive professional environment.

Global

  • Build full-stack features across React, React Native, and Node.js, including AI chat UI and workflows.
  • Design and implement AI systems such as tool-using agents, RAG, and human-in-the-loop flows.
  • Ensure system reliability, scalability, and performance while mentoring team members.

WorkHero is building the AI-powered back office for the skilled trades, starting with the HVAC industry. They are a small, senior team with deep experience in AI, product, and the trades.

Germany 7w PTO 9w maternity 9w paternity

  • Build new product features end-to-end, from rapid prototypes to scalable production implementations.
  • Develop and enhance AI-powered product capabilities by integrating new data sources, tools, and workflows.
  • Create complex React-based interfaces that are performant, reliable, maintainable, and well tested.

The company develops AI-powered tools and knowledge management experiences for teams worldwide. It is a remote-first organization with a collaborative culture focused on trust and ownership.

Europe South America

  • Lead a high-velocity engineering team developing advanced AI tools and data platforms.
  • Set goals, facilitate technical discussions, and ensure high code quality through frequent reviews.
  • Mentor team members, conduct performance reviews, and drive personal and career growth.

Toptal is a global network of top talent in business, design, and technology that enables companies to scale their teams on-demand. With over $200 million in annual revenue and a fully remote workforce, Toptal fosters innovation and social interaction across borders.

Czech Republic

  • Facilitate effective communication with client stakeholders and craft high-quality, scalable code using React, TypeScript, and Node.js.
  • Actively participate in agile development, mentoring team members, and driving project delivery from concept to deployment.
  • Engage with engineering communities to share knowledge and support the growth of technical capabilities.

3Pillar Global is a software development company that partners with clients to build digital products and transform industries. The company fosters a global, remote-first culture with a focus on well-being, diversity, and professional growth.

EU

  • Build and optimize Node.js/TypeScript microservices for scalable AdTech and Retail Media solutions.
  • Develop and maintain React applications with Next.js and Material-UI, implementing advanced form logic.
  • Integrate high-throughput data systems like MongoDB, Redis, and Algolia, and handle distributed messaging.

Redcare Pharmacy is Europe's No.1 e-pharmacy, providing online pharmacy services with a focus on innovation and health. They foster a collaborative, purpose-driven work environment where every employee feels valued.

US

  • Take end-to-end ownership of features and products across the stack, from interfaces to backend infrastructure.
  • Work closely with product, design, operations, and finance to gather requirements, prototype quickly, and ship with confidence.
  • Own features from first prototype through launch, iteration, and beyond.

Agora is building stablecoin infrastructure, including AUSD and a full-service platform for issuing, managing, and integrating stablecoins. It is a small, mission-driven startup backed by Paradigm and Dragonfly, with a culture of high ownership, clear thinking, and high-velocity decision making.

UK 7w PTO

  • Build production-ready AI-powered products integrating LLMs, RAG, and agentic workflows into real-world financial processes.
  • Develop scalable event-driven microservices and APIs with Node.js, TypeScript, and modern React frontends.
  • Architect cloud-native systems on AWS and implement monitoring, evaluation, and observability for production AI systems.

Aveni is redefining how financial institutions use AI by building production-ready agentic systems that replace fragmented processes. Backed by investors including Puma Private Equity, the company completed one of Scotland's largest Series A rounds and is scaling its team to meet growing demand.

Europe

  • Design, develop, and maintain scalable full-stack applications and backend systems using Node.js, TypeScript, React Native, and AWS.
  • Build and maintain REST APIs, manage PostgreSQL databases, and integrate AI-driven capabilities into products.
  • Collaborate with cross-functional teams, apply Agile/DevOps best practices, and deploy applications to App Store and Google Play.

The company provides personalized digital learning experiences in language education, serving K-12, higher education, and corporate learning. It operates as a fully remote, international team with a focus on modern technology and collaboration.

Europe

  • Design and implement full-stack features using Node.js, React, and React Native.
  • Own the mobile app end-to-end, working directly with engineering and product leadership.
  • Contribute to a consumer-first, test-driven development culture with A/B testing and PLG.

SimpleStudy is a consumer AI platform for exam preparation, described as 'Duolingo for exam prep.' The company is post-seed with 1.5M+ students, ~20 people, lean and product-obsessed.

$19,440–$38,880/yr
Global

  • Develop and maintain web applications using modern technologies across frontend and backend.
  • Use AI tools like Claude, Cursor, and GitHub Copilot to improve productivity and code quality.
  • Collaborate with designers, product owners, and other developers in a structured international environment.

Lasting Dynamics is an award-winning international software development company specializing in custom engineering, SaaS platforms, and mobile apps. Founded in Italy in 2015, it has grown into a remote-first team across Europe, Norway, and the Middle East, focusing on long-term partnerships and quality over volume.

Europe

  • Develop and maintain robust software applications using TypeScript/JavaScript, Node.js, Nest.js, and React.
  • Implement new functionality from scratch, such as role-based access control services and API integrations, under the guidance of Senior Developers.
  • Work in an AI-augmented development environment, leveraging tools like Claude Code, Cursor, and Microsoft Copilot.

Sigma Software is a global technology company delivering impactful solutions with modern technologies. They foster a supportive environment that values curiosity, collaboration, and continuous learning.

US

  • Write and maintain scalable enterprise quality software using JavaScript/Node.js/TypeScript and React/Angular.
  • Set up and maintain cloud infrastructure on AWS (Lambdas, Code Build, Cognito, API Gateway) for microservices.
  • Drive feature engineering and experimentation to improve algorithm performance while negotiating solutions with stakeholders.

Railroad19 builds custom software solutions and provides top-tier development services. As a specialized team of developers and architects, they foster a culture of hard work and thought leadership, with a distributed team across the US.

Brazil

  • Design and develop full-stack features for internal platforms supporting finance, compliance, and transaction workflows.
  • Build scalable backend services, APIs, and integrations with third-party platforms.
  • Develop modern frontend applications and dashboards for operational metrics.

The company builds modern technology platforms to improve operational efficiency in the real estate industry. It operates as a remote-first team with a focus on product ownership and collaboration with global teams.

Europe 7w PTO

  • Build core capabilities for SoSafe's Agentic AI Platform, including agent runtimes, model routing, and tool registries.
  • Develop production-grade platform services and developer tooling using Node.js, TypeScript, NestJS, and React.
  • Design reusable AI infrastructure enabling engineering teams to deploy and operate AI agents securely at scale.

SoSafe is a human risk management provider that uses behavioral science and data-driven learning to improve cybersecurity. Backed by leading VCs like Highland Europe and Global Founders Capital, it is one of the fastest-growing security awareness scale-ups worldwide.

$93,400–$106,800/yr
Australia 5w PTO

  • Design and build robust, scalable solutions for complex problems, balancing performance, maintainability, and delivery speed.
  • Design and implement agentic workflows that take a requirement from spec to code to review to deploy.
  • Produce clean, well-tested, maintainable code across the TypeScript/React/Node stack.

Budgetly builds an AI-first platform that simplifies expense management for SMEs, helping them gain cash flow visibility and spend control. The company is a small fully remote team with a light-touch structure, emphasizing ownership and AI-enabled workflows.