530 Vacatures voor Javascript in de Nederland

Medior Full-Stack JavaScript Developer bij Amdax - Amsterdam

Wij zoeken een Medior Full-Stack JavaScript Developer met een sterke focus op CMS-development voor het beheer en de doorontwikkeling van onze websites. Je werkt primair met Craft CMS en integreert het met onze frontends in Je zorgt ervoor dat onze CMS-oplossingen schaalbaar, efficiënt en gebruiksvriendelijk zijn en dat contentteams moeiteloos kunnen werken. Ervaring met PHP is een pluspunt.

Wat ga je doen?

• Beheren en doorontwikkelen van het CMS achter de websites.
• Ontwerpen en implementeren van oplossingen in Craft CMS voor flexibele contentbeheerfunctionaliteit.
• Integreren van API's en koppelingen tussen het CMS en externe systemen.
• Bouwen van schaalbare frontend-componenten in
• Optimaliseren van de CMS-ervaring voor interne gebruikers.
• Samenwerken met developers, UX/UI-designers en product owners in een agile werkomgeving.

Wat we jou bieden

• € €5.000 bruto p/m, afhankelijk van jouw kennis en ervaring
• 8% vakantiegeld
• Variabele beloning
• 25 vakantiedagen
• Laptop en headset
• Amdax participatieregeling; word zelf ook aandeelhouder van Amdax
• Pensioenregeling in bitcoin
• Reiskostenvergoeding incl. NS Business Card en/of leasefiets regeling
• Flexibiliteit om vanuit huis te werken
• Goede ontwikkel- en opleidingsmogelijkheden

Meer weten over Amdax, wat wij doen en wie wij zijn?

Neem dan een kijkje op

Solliciteren

Mocht deze functie goed bij jou passen, stuur dan ons jouw CV met een korte motivatie. We reageren snel, dus je hoeft niet lang in spanning te zitten

In de regel hebben we met elke kandidaat 2 of 3 interviews, afhankelijk van de functie. We werken in onze interviews met een persoonlijkheidstest en afhankelijk van de functie is er ook een assessment, test of case die we aan jou zullen voorleggen. Als daar sprake van is laten we je dat meteen aan het begin van het proces weten.

Wat we zoeken

• Minimaal 3 jaar ervaring als Full-Stack JavaScript Developer, met focus op CMS-development.
• Ervaring met Craft CMS of een vergelijkbaar headless CMS.
• Kennis van React, , TypeScript en
• Ervaring met MongoDB of PostgreSQL.
• Bekend met RESTful & GraphQL API's en integratie van third-party services.
• Basiskennis van PHP is een grote plus.
• Ervaring met Git, CI/CD en DevOps-principes.
• Je hebt sterke communicatieve vaardigheden in zowel Nederlands als Engels, aangezien je samenwerkt met verschillende teams binnen de organisatie.
• Zelfstandig, proactief en oplossingsgericht.
• Fulltime beschikbaar (40 uur)

Looking for impact in eCommerce?

Join a market leader in the Shopify ecosystem and help shape the future of online retail.

Vitals is an all-in-one Shopify app that 110+ million shoppers interact with every month across 30,000+ stores worldwide . We’ve earned a perfect 5/5 rating (with thousands of glowing reviews) on the Shopify App Store, placing us in the top 0.1% of 13,000+ Shopify apps.

As a profitable, bootstrapped company, we focus solely on delivering value to our merchants – no vanity projects or red tape, just a laser focus on building products that drive results. If you’re an experienced JavaScript engineer who thrives on innovation and is excited about using AI-powered development tools to boost productivity, this job is for you.

• Thrive in the Shopify ecosystem: Be part of a team that’s building one of the most popular apps on Shopify. Your work will directly influence the success of tens of thousands of e-commerce businesses.

• Remote-first flexibility: Work from anywhere (EMEA time zone preferred) with 100% remote forever.

• Bootstrapped & stable: Join a profitable startup with real customers and steady growth. No external investors means we prioritize product quality and user happiness above all else.

• Fresh fech & AI-driven culture: Work with a modern tech stack (TypeScript, Preact/React, Symfony, AWS) and a team that embraces new technologies. We use AI development tools (like Claude Code and Cursor) to code smarter and innovate faster.

• Direct impact & ownership: Small, agile team where transparency, ownership, and diversity are valued. Your ideas can quickly shape product features used by millions, and you won’t be bogged down by bureaucracy.

• Collaborate & ship solutions: Work closely with product managers and designers to plan, build, and ship new features that optimize the shopping experience and drive merchant sales. You’ll be involved end-to-end – from initial technical analysis and design to coding, review, and deployment.

• Leverage AI in development: Use AI coding assistants (e.g., Claude Code, Cursor) as part of your workflow to accelerate development, ensure code quality, and automate routine tasks. We encourage experimenting with new AI tools to boost productivity.

• Front-End development: Build fast and intuitive UI components and e-commerce features using TypeScript and React/Preact . Ensure our app’s widgets and interfaces are polished, mobile-friendly, and seamlessly integrated into merchants’ storefronts.

• Quality assurance: Write unit and integration tests (using Jest, React Testing Library, Playwright , etc.) to ensure features are reliable and bug-free. You’ll also monitor features in production and quickly squash any issues that pop up.

• Performance optimization: Continuously optimize applications for maximum speed and scalability . Whether it’s refining a React component or tuning an API call, you’ll make sure our app runs smoothly on stores of all sizes.

• Mentorship & code reviews: As a senior engineer, you’ll mentor less-experienced teammates, share knowledge, and lead by example. You’ll participate in code reviews and help uphold high engineering standards across the team.

• Senior Front-End experience: 8+ years of hands-on JavaScript/FrontEnd development. You have deep knowledge of modern FrontEnd frameworks (preferably React or similar) and TypeScript.

• AI-driven developer: Proven experience or strong interest in using AI tools for development. You’re familiar with tools like Claude Code, Cursor , or similar, and you actively use them to improve code quality and delivery speed.

• Strong problem solver: You excel at thinking in trade-offs and choosing the right solution for the situation. There’s no one “right” answer in engineering – you weigh pros and cons to make pragmatic decisions.

• Proactive & product-focused: You take initiative to identify what needs to be done without always waiting for direction. If something doesn’t feel right (technically or from a user experience perspective), you speak up and propose better solutions.

• Resilient & creative: When faced with an “impossible” task or a complex bug, you get excited by the challenge rather than discouraged. You enjoy brainstorming and aren’t afraid to think outside the box to find a solution.

• Strong communicator: You communicate clearly and early. If a potential issue arises, you raise it before it becomes a blocker. You can explain technical concepts to non-engineers and collaborate well in a remote team.

• Polyglot developer: Experience with multiple FrontEnd frameworks (React, Angular, Vue, etc.), and deep VanillaJS expertise. You can quickly adapt to new libraries and paradigms.

• Performance tuning: Knowledge of advanced performance optimization techniques for web apps (lazy loading, caching strategies, minimizing bundle size, etc.). Experience making dynamic storefronts lightning-fast is a plus.

• Build tools mastery: Familiarity with modern build systems and tooling (Webpack, Parcel, Vite, etc.) and the ability to configure and optimize them for large projects.

• Additional AI/automation experience: If you’ve experimented with other AI-driven development tools, automated testing frameworks, or CI/CD optimizations using AI, we’d love to hear about it.

What we offer

• Competitive compensation: We reward top talent with competitive pay.

• Remote work, always: Freedom to work from anywhere in the world. We trust you to get work done in the environment that suits you best. (Our team currently operates around EMEA time zones for collaboration.)

• Growth & learning: Work on a product at a massive scale using the latest tech. You’ll have opportunities to experiment with new technologies (including AI tools) and grow your skill set. We support continuous learning and will cover resources that help you advance.

• Impactful work: Your contributions directly shape the product and user experience for thousands of merchants and millions of shoppers. Few roles out there offer this level of influence on real-world outcomes in e-commerce.

• Supportive team culture: Join a tight-knit team that values transparency, ownership, and work-life balance . We celebrate diversity and believe in empowering each team member. You’ll find us candid, down-to-earth, and always ready to help each other succeed.

If you’re a proactive engineer who’s excited to use AI to improve the online shopping experience and isn’t afraid to go the extra mile to achieve outstanding results, we’d love to hear from you! This is your chance to work on a product that impacts millions, collaborate with a passionate team, and push the boundaries of modern web development.

Let’s build the future of e-commerce together.

Locatie: Schiphol

Uren per week: 36

Start: Zo snel mogelijk

Einddatum: 30 juni 2026

Deadline reageren: 3 oktober 2025 – 10:00

Max. tarief per uur: €105

ZZP toegestaan: Nee

Heb je ooit in een vliegtuig gezeten terwijl je dacht: "Waarom wachten we nog?" Achter die vraag zit een complex proces: de turnaround van een vliegtuig. Dit is een van de grootste bronnen van vertragingen én kosten.

Met Deep Turnaround pakken we dit probleem aan. Door middel van machine vision (AI) en data engineering verzamelen we nieuwe inzichten tijdens het turnaroundproces en delen deze real-time met alle betrokken partijen. Zo kunnen zij sneller en slimmer beslissingen nemen, waardoor vertragingen worden beperkt.

Als Software Engineer speel jij hierin een sleutelrol. Jij bent het technisch aanspreekpunt voor nieuwe luchthavencustomers en versterkt ons bestaande platform. Je werkt aan veilige integraties, bouwt betrouwbare services en zorgt voor betere monitoring en observability. Daarmee maak je onboarding sneller en onze dienstverlening stabieler.

Lees meer over Deep Turnaround: Deep Turnaround – Schiphol

• Integraties bij nieuwe luchthavens: realiseren van veilige data-uitwisseling, services en checks.
• Platform verbeteren: dashboards, alerting en procedures ontwikkelen om handmatig werk te verminderen.
• Services bouwen: kleine integratieservices in Go (voorkeur) of Python, gekoppeld aan Kafka/AMQP en REST/DB.
• Monitoring & observability: werken met Prometheus, Grafana, logs en tracing.
• Runbooks en checklists: standaardiseren van onboarding en supportprocessen.
• Beheer: schema governance, CI/CD pipelines en reproduceerbare configuraties.
• Incidenten: aanspreekpunt voor eigen integraties, post-mortems uitvoeren en verbeteringen doorvoeren.
• Security & privacy: bijdragen aan GDPR, toegangsbeheer, certificaten en beleid.

• Bachelor in Computer Science, Software Engineering of vergelijkbaar.
• Minimaal 5 jaar ervaring met productiesoftware.
• Go (vereist) en/of Python.
• Ervaring met Kafka of AMQP, PostgreSQL/Clickhouse/Object Storage.
• Bekend met CI/CD (Gitlab/Github Actions), Docker en Kubernetes/Nomad.
• Sterke kennis van Linux, netwerken, SFTP/FTP, certificaten, VPN en firewalls.
• Ervaring met monitoring tools (Prometheus/Grafana, logging, tracing).
• Communicatief sterk; prettig in contact met klanten en teams.
• Engels vloeiend; Nederlands is een pré.

• Ervaring met camera-/video-oplossingen, OpenCV, PyTorch, ONNX.
• Diepgaande kennis van Clickhouse, schema registraties.
• Bekend met Terraform/Helm, SSO/OAuth2/JWT.
• Achtergrond in luchtvaart, logistiek of safety-critical omgevingen.
• Bereidheid tot reizen en werken in verschillende tijdzones.

Je werkt hybride (50/50) op Schiphol en remote, binnen een team dat innovatie in de luchtvaart tastbaar maakt.

Our client, a leading prop trading firm in Amsterdam, are looking for team members who can contribute to the full-cycle development of their low-latency trading applications and algorithms.

Job Description

• Designing and developing sophisticated, high-performance software to ensure the highest quality standards.
• Collaborating on the construction of a cutting-edge low-latency infrastructure that seamlessly integrates hardware and software components, optimizing our clients HFT platform for efficiency and reliability.

The Right Candidate

• Has at least 3 years of development experience in a high-level object-oriented language (preference for Java and C++)
• Is a university graduate in Computer Science (with a high GPA)
• Has experience building complex, high-scale, high-performance software

• Is curious by nature and a quick learner

• Ideally Experienced with

• Advanced OOP and design patterns

• Performance and low latency optimizations
• Linux operating system, its internals, and ecosystem
• Interaction with tools such as Kubernetes, Docker, or similar
• Has architectural abilities to design a large scale and complex systems
• Experience and knowledge in financial markets infrastructure
• Familiar with CI/CD and develop

We offer an exciting opportunity for a Software Engineer to join our innovative aerospace technology company. In this role, you will be responsible for developing internal application solutions to control, display, and monitor systems under test. You will design and develop remote control solutions for our battlefield systems, ensuring they are effective and user-friendly. Your mission? To design and implement robust, user-friendly remote-control solutions for our next-generation battlefield systems. At the core of this job is building the software that powers our defense technologies—and supporting it every step of the way.

This position offers numerous opportunities to define and implement the most efficient solutions for front-end applications across multiple platforms. You will collaborate with a talented team of professionals and contribute to cutting-edge projects in the aerospace industry.

At Destinus, we are revolutionizing the defense industry with cutting-edge Unmanned Aerial Vehicles (UAVs). Our innovative technologies are designed to meet the unique demands of modern defense operations, delivering unparalleled speed, precision, and cost effectiveness. Destinus partners with government agencies and defense organizations worldwide to provide advanced solutions for mission-critical operations, enabling a new era of efficiency and technological superiority. Join us in shaping the future of defense with groundbreaking aerospace innovations.

What You´ll Do

• Develop and implement software tools with efficient GUI for end-users.
• Develop infrastructure for real time communication, between battlefield assets and operators
• Build, test and deploy software solutions for critical functions such as flight control, navigation, guidance and sensor data processing
• Take end-to-end ownership of software development cycles, from architectural planning through to deployment and in-field diagnostics
• Continuously evaluate and integrate new technologies and frameworks to advance the capabilities of our autonomous flight systems

What You´ll Need

• Bachelor's or Master's degree in computer science, engineering, or a related technical field.
• Network Security Experience would be a plus.
• Experience in interfacing the application with remote sensors would be a plus.
• Experience in protocols such as CAN, Serial, TCP/IP would be a plus.
• Excellent written and verbal communication skills.
• Strong analytical and problem-solving skills, crucial for algorithm development and data analysis.
• Languages - English is mandatory. French and/or Spanish are beneficial.

Who You Are

You move fast, think faster, and build with purpose. Challenges aren't roadblocks—they're fuel. You write code that's sharp, intentional, and built to matter. Always curious, always learning, and always all-in. You're here to make real impact—not just ship, but shift what's possible.

Why Join Us?

The Thrill of the Future – Work on cutting-edge projects that redefine aerospace.

Global Innovation Hub – Collaborate with top engineers from all over the world.

Fast-Paced & High-Growth – Experience the rush of working in a rapidly expanding company.

Real Impact – Your work won't be theoretical—it will shape the future of flight.

Destinus is an equal-opportunity employer. We value diversity in our companies and our teams and do not discriminate based on age, race, religion, color, country of origin, gender, sexual orientation, or disability status.

Destinus – Challenge the limits of time, space, and human potential.

P-1317

At Databricks, we are passionate about enabling data teams to solve the world's toughest problems — from making the next mode of transportation a reality to accelerating the development of medical breakthroughs. We do this by building and running the world's best data and AI infrastructure platform so our customers can use deep data insights to improve their business. Founded by engineers — and customer obsessed — we leap at every opportunity to solve technical challenges, from designing next-gen UI/UX for interfacing with data to scaling our services and infrastructure across millions of virtual machines. And we're only getting started.

As a software engineer with a backend focus, you will work with your team to build infrastructure and products for the Databricks platform at scale.

The Impact You'll Have
Our backend teams span many domains across our essential service platforms. For instance, you might work on challenges such as:

• Problems that span from product to infrastructure including: distributed systems, at-scale service architecture and monitoring, workflow orchestration, and developer experience.
• Deliver reliable and high performance services and client libraries for storing and accessing humongous amount of data on cloud storage backends, e.g., AWS S3, Azure Blob Store.
• Build reliable, scalable services, e.g. Scala, Kubernetes, and data pipelines, e.g. Spark, Databricks, to power the pricing infrastructure that serves millions of cluster-hours per day and develop product features that empower customers to easily view and control platform usage.

What We Look For

• BS (or higher) in Computer Science, or a related field
• 2+ years of production level experience in one of: Java, Scala, C++, or similar language.
• Experience developing large-scale distributed systems.
• Experience working on a SaaS platform or with Service-Oriented Architectures.
• Good knowledge of SQL.

About Databricks
Databricks is the data and AI company. More than 10,000 organizations worldwide — including Comcast, Condé Nast, Grammarly, and over 50% of the Fortune 500 — rely on the Databricks Data Intelligence Platform to unify and democratize data, analytics and AI. Databricks is headquartered in San Francisco, with offices around the globe and was founded by the original creators of Lakehouse, Apache Spark, Delta Lake and MLflow. To learn more, follow Databricks on Twitter, LinkedIn and Facebook.

Benefits
At Databricks, we strive to provide comprehensive benefits and perks that meet the needs of all of our employees. For specific details on the benefits offered in your region, please visit

Our Commitment to Diversity and Inclusion
At Databricks, we are committed to fostering a diverse and inclusive culture where everyone can excel. We take great care to ensure that our hiring practices are inclusive and meet equal employment opportunity standards. Individuals looking for employment at Databricks are considered without regard to age, color, disability, ethnicity, family or marital status, gender identity or expression, language, national origin, physical and mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other protected characteristics.

Compliance
If access to export-controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such positions, and Employer may decline to proceed with an applicant on this basis alone.

Python / C++ / Rust Developer – Technology Trading - 250K OTE+ - Hybrid

Do you have a passion for Python, Rust, or C++ and are you looking for a place where you can work on the low latency infrastructure that supports technology trading?

You will work in a company with around 50 people and with its trading systems they are trading in different regions across the globe. Think of high performance and a lot of complexity.

Keywords:
C++, / Rust / Python, low latency, Multithreaded, parallel computing, Linux, Python

The company:

The company is active in a highly demanding and fast market: trading It has built its own platform now trading across the globe every day. The company has offices in the Netherlands and other countries.

Required skills:

• Bachelor or Master in Computer Science (or similar);
• Experience in C++;
• Interest in low-latency;
• Experience with multithreaded applications is a big plus;
• Experience in Finance/Trading is a big plus.
• Hybrid.

Benefits:

Competitive Salary

Holiday Allowance

Big bonus component

30% tax ruling for expats (if applicable)

• Travel allowance

Wij zijn op zoek naar een Golang Software Engineer: een collega met een open blik en een oprechte passie voor het ontwikkelen van hoogwaardige oplossingen die geschikt zijn voor missie-kritieke omgevingen. We helpen onze klanten met uiteenlopende uitdagingen, zoals het creëren van gebruiksvriendelijke online banken die wekelijks kunnen veranderen, industriële backends die grote en cruciale bedrijfsprocessen beheren, of het slimmer maken van fabrieken door cloud- en IoT-technologie te combineren.

Binnen Schuberg Philis volgen we graag de nieuwste ontwikkelingen, zodat we altijd het juiste gereedschap kunnen kiezen voor de complexe missie-kritieke ecosystemen die we beheren. In onze droomprojecten integreren we moeiteloos de nieuwste technologie in bestaande landschappen om duurzame, hoogwaardige software te bouwen.

Ben jij net zo gepassioneerd over softwareontwikkeling en heb je je vaardigheden de afgelopen jaren ontwikkeld in een uitdagende omgeving? Dan ontmoeten we je graag.

Onze ideale collega heeft:

• Minimaal 3 jaar ervaring in softwareontwikkeling
• Minimaal 3 jaar ervaring met Golang
• Ervaring met het ontwerpen, bouwen en onderhouden van microservices
• Ervaring met event-driven architectuur
• Ervaring met het ontwikkelen, releasen en onderhouden van hoogwaardige softwareproducten en -diensten
• Ervaring met werken in een ontwikkelteam
• Vermogen om hoogwaardige, herbruikbare en testbare code te schrijven
• Ervaring met best practices voor veilige softwareontwikkeling
• Ervaring met performance-optimalisatie en hardware-tuning

Wat zou voor ons een mooie plus zijn:

• Ervaring met andere talen, zoals Rust of C++
• Ervaring met low-level protocollen
• Sterke focus op operationele betrouwbaarheid
• Ervaring met het bouwen van containerized microservices
• Operationele ervaring met microservices op k8s
• Ervaring met continuous delivery pipelines en tools
• Kennis van softwarearchitectuur (bijv. design patterns, C4, DDD)

Everyone we work with and consider working with has a right to equal treatment. The hiring and appraisal process at Schuberg Philis is designed to be thorough and equitable, implementing fair payment, benefits, and opportunities across all demographics.

It is our desire to be a company that brings together multiple nationalities, cultures, religions, genders, abilities, and talents within and across our teams. We welcome colleagues from diverse backgrounds to join Schuberg Philis and actively support diversity and inclusion in the tech industry.

Are you a creative developer who enjoys solving tricky problems and building smart, secure software? We're looking for a
(Medior) Software Engineer
to join our team.

You'll work on meaningful privacy-first software products used across the worls, and help us scale as we grow

As a core member of our development team, you'll collaborate with directly with the founders of Sendent. This is a fantastic opportunity to grow with a startup environment where your contributions have real impact and visibility.

About Sendent

Sendent is a fast-growing software company at the forefront of privacy-first collaboration and communication tools. We specialize in developing secure, user-friendly software that integrates Microsoft and Nextcloud, helping organizations worldwide safeguard sensitive data while working more efficiently.

Our mission is to build secure and sustainable digital tools that empower teams to work securely. We are committed to creating an innovative, collaborative, and diverse work environment where individuals can thrive and make a significant impact.

At Sendent, you'll be part of a dynamic, forward-thinking team dedicated to delivering reliable, secure software for the digital workplace. We offer opportunities for professional growth and a supportive environment where you can develop your career.

Tasks

What You'll Work On**

• Build and maintain secure applications using and TypeScript

• Collaborate with product and design teams to shape user-friendly, privacy-respecting features

• Solve real-world coding challenges with creativity and persistence

• Write clean, testable code and contribute to our growing documentation

• Suggest improvements — in the product, codebase, and how we work together

Requirements

What We're Looking For

Core Skills (Must-Haves)

• Proficient in and TypeScript

• Comfortable with Git workflows and code collaboration

• Strong analytical mindset and problem-solving skills

• Creative thinker who doesn't give up easily

• Based in the Netherlands, able to travel to Den Bosch ±2x/month

Nice-to-Haves

• Experience with PHP, , C#/.NET, or unit testing

• Previous work in a startup or small team environment

• Degree in Software Engineering or equivalent coding education and experience.

• Experience in extracurricular development (e.g., personal projects, open source contributions).

• Proactive and curious, willing to learn new tools and frameworks

Benefits

What You'll Get

• A salary €3,000 and €3,500 gross (based on 40 hours, depending on experience)

• 8% holiday pay on top of your salary

• Company laptop + home office budget

• Work-from-home allowance

• Remote-first culture with monthly visits (~2x/month) to Den Bosch (travel reimbursed)

• 25 vacation days + public holidays

Ready to Apply?

If you're excited by startups, passionate about privacy, and love building things the right way — we'd love to hear from you.

*Please note that, due to the hybrid nature of this role, applicants must be based in the Netherlands and possess a valid work permit.

*Acquisition on this vacancy is not appreciated, same as mid-lance or off shore constructions.