16 beste vacatures voor de functie van fullstack developer in haarlem, nh (nieuwe medewerkers gezocht)

Senior Full Stack Developer - Tradesyncer (NL) (SaaS Platform)
Tradesyncer B.V. —Amsterdam
- € 5.500 - € 7.000 per maand
- Fulltime
- Hybride werken
- Azure
- Engels
- SQL
- Reiskostenvergoeding
- Zorgverzekering
Snel solliciteren
3 dagen
Full-stack Developer
Sociale Verzekeringsbank —Amstelveen
- Tot € 6.395 per maand
- Hybride werken
- Azure
- DevOps
- Kantoor
Snel solliciteren
11 dagen
Medior Software Engineer
Attendi —Amsterdam
- € 6.000 - € 7.000 per maand
- Fulltime
- Hybride werken
- Master
- Bachelor
- Reiskostenvergoeding
- Budget voor professionele ontwikkeling
Snel solliciteren
1 dag
Fullstack Software Engineer - Core
Dataiku —Amsterdam
- Azure
- Java
- Master
FHIR Backend Developer | .NET
Firely —Amsterdam
- € 5.000 - € 6.000 per maand
- Fulltime
- Azure
- Informatica
- Engels
Snel solliciteren
2 dagen
Product Manager Payroll Intergrations
Epassi —Amsterdam Oost
- Hybride werken
- Analytisch vermogen
- Communicatieve vaardigheden
- Reiskostenvergoeding
DevOps Engineer (Cloud & Security)
Pacmed —Amsterdam Centrum
- Fulltime
- Hybride werken
- Azure
- Ziekenhuis
- DevOps
- Telefoonplan
Snel solliciteren
Key Customers Solutions Architect EMEA
Nebius —Amsterdam
- Thuiswerk
- Azure
- AWS
- Projectmanagement
Snel solliciteren
Senior Data Engineer
Hadrian —Amsterdam Centrum
- Hybride werken
- Master
- SQL
- AWS
- Telefoonplan
- Aanbrengbonus
Snel solliciteren
2 dagen
Senior Software Engineer Together Cloud Infrastructure
Together AI —Amsterdam
- Hybride werken
- Azure
- Troubleshooting
- Master
Senior Systems Engineer
Share —Amsterdam
- Fulltime
- Thuiswerk
- SQL
- Linux
Snel solliciteren
Senior Java / Kotlin Developer – Backend / Full‑stack
MatchMatters BV —Amsterdam
- € 700 - € 900 per jaar
- Fulltime
- Java
- Flexibele werkuren
Snel solliciteren
Product Engineer Pension Domain (Dutch Speaker)
Accenture —Amsterdam
- Fulltime
- Hybride werken
- DevOps
- Engels
- Java
- Zorgverzekering
- Flexibele werkuren
Principal Cloud Native Specialist
Dynatrace —Amsterdam
- Fulltime
- Hybride werken
- Informatica
- Azure
- Informatica
- Mentale gezondheidszorgprogramma's
- Flexibele werkuren
Dynatrace Lead Consultant | Monitoring & Observability team
Devoteam Netherlands —Amsterdam
- Fulltime
- Hybride werken
- Management
- DevOps
- Engels
- Reiskostenvergoeding
Snel solliciteren
Lead Dynatrace Monitoring Consultant
Atos —Amstelveen
- Fulltime
- Hybride werken
- DevOps
- Analytisch vermogen
- Linux
- Reiskostenvergoeding
- Budget voor professionele ontwikkeling

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Senior Full Stack Developer - Tradesyncer (NL) (SaaS Platform)
Tradesyncer B.V. —Amsterdam
You'll own how trade copying, journaling, analytics, expense tracking and risk management fit together, and how it all plugs into the brokers and prop firms…
€ 5.500 - € 7.000 per maand
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3 dagen

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Senior Full Stack Developer - Tradesyncer (NL) (SaaS Platform)

Tradesyncer B.V.
Amsterdam

Snel solliciteren

Vacaturegegevens

Uitzicht op vast | Fulltime
€ 5.500 - € 7.000 per maand
3 dagen geleden

Secundaire arbeidsvoorwaarden

Reiskostenvergoeding
Zorgverzekering
Telefoonplan
Pensioen
Werk vanuit huis
Budget voor professionele ontwikkeling
Vrijdagmiddagborrel
Mogelijkheid tot promotie

Kwalificaties

Azure
Rust
Node.js
React
Git
Engels
VMBO
SQL
Docker
JavaScript
PostgreSQL
Redis
Risicomanagement
TypeScript
Nederlands
HAVO

Volledige vacaturetekst

Full Stack Developer.

Tradesyncer (NL)

Amsterdam, on-site preferred, hybrid possible

Full-time

Salary: €10,000 to €12,000 per month

Start: as soon as possible

Be the builder behind our trading platform — and the interfaces traders actually touch. From backend logic to responsive frontend, owned end to end.

About Tradesyncer

Tradesyncer is the fastest growing platform futures traders use to scale and improve their trading. Trade copying across unlimited evaluation and funded accounts in under 100 ms, plus a trading journal, analytics, expense tracking and risk management, all in one cloud-based place. No installs.

We operate 24/7 and integrate with the world's leading futures brokers (NinjaTrader, Tradovate, Rithmic, TradingView, and more) across every major prop firm our traders are evaluated and funded by. We're a small, fast-moving team building infrastructure that serious futures traders depend on every day. Now we're looking for a Full Stack Developer t to help us scale what we've built and take it to the next level.

The Role

As a Full Stack Developer, you'll work across the stack — designing and building API endpoints on the backend and bringing them to life as the React interfaces traders use every session. You'll own features end to end and ship work that thousands of traders rely on daily.

This role is for someone who likes owning a feature from data model to interface, keeps their code clean and well-documented, and moves fast with AI tooling in a scale-up environment.

The platform you'll scale

Tradesyncer gives futures traders the full infrastructure to scale and improve, not just one tool. You'll own how trade copying, journaling, analytics, expense tracking and risk management fit together, and how it all plugs into the brokers and prop firms traders run on.

One platform, everything traders need to scale: trade copying, trading journal, analytics, risk management, expense tracking, propfirm tracker, AI coach.

Brokers and platforms: NinjaTrader, Tradovate, Rithmic, TradingView, ProjectX, Deepchart, and more.

What you'll do

Design and build API endpoints in TypeScript (Node) — clean, documented, and wired straight into the product.
Bring those endpoints to the front end as fast, responsive React / TypeScript interfaces traders rely on every session.
Own features end to end — data model → endpoint → frontend → the last 10% of polish that makes it feel right.
Build real-time flows over WebSockets so dashboards and account states update live.
Keep the codebase clean and lean — well-structured code, sensible patterns, and clear documentation of your work are part of the role, not an afterthought.
Move fast with AI — Cursor, Claude and AI-assisted workflows are core to how we build, not a novelty.

What you bring

3–5 years building production web apps with JavaScript / TypeScript.
Strong React and modern frontend skills — you build interfaces that are fast, responsive and dependable.
You're comfortable designing and building backend API endpoints (Node / TypeScript; Rust a bonus).
Solid with SQL and Supabase / Postgres; Redis and WebSockets a plus.
Nice to have: familiarity with Docker and a cloud provider (AWS or Azure).
Fluent with AI-assisted development (Cursor, Claude) — this is genuinely how we work day to day.
Based in or able to commute to Amsterdam for a hybrid setup. Comfortable working in English.
Bonus: an interest in trading, markets, or fintech.

What we offer

Based in Amsterdam, on-site preferred, working side by side with the founding team.
Direct impact: your decisions reach our entire trader community from day one.
Real ownership: a small team where you own outcomes, not just tickets.
Full platform access, plus our prop firm partnerships.
Monthly compensation of €5500 to €7000, paid reliably every month.
Budget for hardware, tools and learning.

Interested?

Send your CV and a short note about what you've built. We read every one, tell us about the hardest system you've designed and what you'd change about it today.

[email protected]

Salaris: €5.500,00 - €7.000,00 per maand

Arbeidsvoorwaarden:

Budget voor professionele ontwikkeling
Mogelijkheid tot promotie
Pensioen
Reiskostenvergoeding
Telefoonplan
Vrijdagmiddagborrel
Werk vanuit huis
Zorgverzekering

Werklocatie: Hybride werken in 1019 Amsterdam

Snel solliciteren

Verfijn je zoekopdracht

fullstack developer vacatures in haarlem, nh

Senior Full Stack Developer - Tradesyncer (NL) (SaaS Platform)

Full-stack Developer

Medior Software Engineer

Fullstack Software Engineer - Core

FHIR Backend Developer | .NET

Product Manager Payroll Intergrations

DevOps Engineer (Cloud & Security)

Key Customers Solutions Architect EMEA

Senior Data Engineer

Senior Software Engineer Together Cloud Infrastructure

Senior Systems Engineer

Senior Java / Kotlin Developer – Backend / Full‑stack

Product Engineer Pension Domain (Dutch Speaker)

Principal Cloud Native Specialist

Dynatrace Lead Consultant | Monitoring & Observability team

Lead Dynatrace Monitoring Consultant

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Ik wil de nieuwste vacature-alerts ontvangen voor de functie van fullstack developer in haarlem, nh

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