Senior Fullstack Developer

Your daily tasks may include:

Building and improving modern web applications, backend services, APIs and data models

Working across frontend, backend and infrastructure depending on the needs of the client project

Helping clients choose suitable technologies, architecture and delivery approaches

Contributing to cloud environments, CI/CD pipelines, deployments and production operations

Debugging, testing, monitoring and improving production-grade systems

Working on products or tooling related to customer-facing services, internal platforms, identity, martech, customer support, analytics, content, online stores, integrations, developer tooling or SDKs

Collaborating directly with client tech teams, business stakeholders, designers, product people and other disciplines

Clarifying ambiguous requirements and turning them into working software

Taking responsibility for delivery while making sure the team is supported and no one is left behind

Using modern development practices, including openness to AI-assisted development tools and workflows

To thrive in this position, you’ll need:

Must-haves

Strong experience in modern frontend development, for example with TypeScript and React or comparable technologies

Strong experience in backend service development, for example with Node.js, Java, Kotlin, Python or comparable technologies

Experience building, shipping and improving production-grade digital products

Comfortable working across the full delivery lifecycle, from implementation to testing, deployment and production operations

Understanding of cloud environments, CI/CD, deployments and how production systems are operated

Ability to work directly with clients, stakeholders and other disciplines in a senior, consultative role

Strong problem-solving skills and the ability to bring clarity to ambiguous product or technical situations

A hands-on mindset - you are technically credible, actively contribute to the work and help the team move forward

Fluent verbal and written English skills to collaborate in an international environment

We do not have a hard requirement around years of experience, but we have noticed that this level of fullstack, client-facing and production ownership usually takes several years of professional experience to build.

Nice-to-haves

Experience from customer-facing digital products, online services, ecommerce, subscriptions, internal platforms, analytics, content, martech or similar product domains

Experience with high-traffic or business-critical production systems

Deeper experience with platform engineering, infrastructure-as-code or DevOps practices

Experience with customer-facing products, internal tools, integrations, SDKs or developer tooling

Familiarity with mobile development

Adaptability

Willingness to work in a hybrid setup. This means balancing office, client premises and remote work depending on the client project and team needs.

Benefits

At Reaktor Amsterdam, our benefits and perks evolve with our community, and we're always open to new ideas that will support the wellbeing of Reaktorians. Currently, we offer the following perks:

Tools: a top-spec computer and a phone to work with and use at work and home

Phone & internet: unlimited phone plan and home internet

7% pension plan

Extensive health insurance

Mental health support

Wellbeing benefit with YourCampus

Commuting benefit with NS card

We're an equal opportunity employer

Strong experience in modern frontend development with TypeScript and React or comparable technologies, Strong experience in backend service development with Node.js, Java, Kotlin, Python or comparable technologies, Experience building, shipping and improving production-grade digital products, Comfortable with full delivery lifecycle: implementation, testing, deployment, production operations, Understanding of cloud environments, CI/CD, deployments and production operations, Ability to work directly with clients, stakeholders and other disciplines in a senior, consultative role, Strong problem-solving skills and ability to bring clarity to ambiguous situations, Hands-on mindset and active contribution to the team, Fluent written and spoken English

#J-18808-Ljbffr