20 beste vacatures voor de functie van application developer in leiden (nieuwe medewerkers gezocht)

ReApplic8 - Co-Founder & CTO
HortiScience Innovation Center —Bleiswijk
- Parttime
- Hybride werken
- Master
- APIs
Snel solliciteren
Teamleider ICT
Universiteit Leiden —Leiden
- € 4.925 - € 6.682 per maand
- Parttime
- Engels
- Leidinggevende ervaring
- Bachelor
- Reiskostenvergoeding
Product Owner - Back Office, Integration & Ecosystem
C Teleport —Rotterdam
- Hybride werken
- ERP systemen
- Engels
- Master
Software Engineer DevOps
Dustin —Leiden
- Hybride werken
- DevOps
- AWS
- Bachelor
Mobile Software Security Evaluator
SGS Brightsight —Delft
- Fulltime
- Doctor
- Informatica
- Engels
Snel solliciteren
Developer Relations Intern
Azerion —Schiphol
- € 400 per uur
- Engels
- Master
- Bachelor
Snel solliciteren
Software Generalist — Tools, Dashboards, Frameworks & Performance (Python / Rust / C++ / Web)
Fiducial —Delft
- Fulltime
- Hybride werken
- C++
- Bachelor
- Python
- Reiskostenvergoeding
- Werk vanuit huis
Snel solliciteren
Product Owner – Global Navigation Satellite Systems (GNSS)
Fugro —Nootdorp
- € 4.900 - € 6.300 per maand
- Fulltime
- Engels
- Master
- Bachelor
- Kosteloos parkeren
- Reiskostenvergoeding
Quality Engineering Architect [Financial Services]
CGI —Randstad
- Fulltime
- Informatica
- Azure
- Informatica
Snel solliciteren
Principal Full Stack Engineer, AI Platform & Agents
Wolters Kluwer —Alphen aan den Rijn
- Fulltime
- Azure
- Master
- AWS
Solution Engineer – Device Security Hardware (Keysight Device Security)
Keysight Technologies, Inc. —Delft
- Parttime
- Laboratorium
- Master
- Presentatievaardigheden
Product Owner
Qualogy —Rijswijk
- € 4.250 - € 6.000 per maand
- Hybride werken
- Azure
- DevOps
- Engels
- Tankpas
- Budget voor professionele ontwikkeling
Information & Security Officer
Hunt & Hackett —Den Haag
- DevOps
Project Manager
Nearfield Instruments —Rotterdam
- Fulltime
- Engels
- Master
- Analytisch vermogen
Senior Security Evaluator – Crypto code review
SGS Brightsight —Delft
- Fulltime
- Doctor
- Engels
- Master
Snel solliciteren
MD Mexico
Stolze —Waddinxveen
- Fulltime
- Hybride werken
- Spaans
- Engels
- Master
Snel solliciteren
8 uur
Analog Electronics Engineer
Destinus —Katwijk aan Zee
- Hybride werken
- Doctor
- Laboratoriumervaring
- Master
Snel solliciteren
Thermo-Mechanical Engineer
cosine —Sassenheim
- Hybride werken
- Engels
- Master
- Communicatieve vaardigheden
- Budget voor professionele ontwikkeling
Snel solliciteren
1 dag
IT Product Manager
Kyndryl —Hoofddorp
- Fulltime
- Hybride werken
- Windows
- Analytisch vermogen
- ICT
- Aanbrengbonus
Afstudeerstage Software Development (HBO/WO) – Start september 2026
Qualogy —Rijswijk
- € 500 per maand
- Hybride werken
- Informatica
- Java
- Master
3 dagen

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ReApplic8 - Co-Founder & CTO

HortiScience Innovation Center
Bleiswijk

Snel solliciteren

Vacaturegegevens

Parttime | Fulltime

Kwalificaties

CI/CD
Node.js
Master
APIs
TypeScript

Volledige vacaturetekst

ReApplic8Co-Founder & CTO

Equity co-founder · Netherlands (remote possible) · Part-time full-time

Most solutions to today's hardest problems already exist — somewhere else, in another industry. A data-center sensor is exactly what a greenhouse grower needs. An aviation logistics model fixes a food cold-chain. ReApplic8 finds those connections and makes them happen.

We do it through K8, our AI voice agent and the linking pin between people, knowledge and ecosystems. K8 doesn't query a database — she has a real conversation, hears what someone is trying to build, and gets smarter with every call. That conversation data is our moat.

Where we stand

Two co-founders — Erik (COO, BD, tech (now)) and Desh (CEO, vision, commercial) — now building the third corner of the founding team. Live stack today: Vapi + Twilio (voice), Supabase (data), LLM orchestration across providers. We're validating direction in customer conversations right now — the mission and the re-application mechanic are fixed; the roadmap is co-created, including with you.

We start in Dutch horticulture, but the platform is sector-agnostic by design.

Traction is building through genuine interest from many ecosystem partners and companies such as: Yes!Delft, Delphy, Kas als Energiebron, Rabobank, Global Alliance for Horticulture regions, WUR, FME, Samenwerkingsverband Start-up Scale-up Zuid Holland, etc.

The ambition: 30,000 food-transition challenges connected to 300,000 solutions by 2030.

The role

A hands-on CTO co-founder at the intersection of building and commercial thinking. Not pure engineering, not pure management. You take over K8, write code daily, and own the technical architecture and product direction. As we grow you will build and manage the developer team as well.

What we are today: we don't train models (yet) — we orchestrate AI agents on top of commercial LLMs. The craft is agent design, prompt/context engineering, RAG, and making voice-first AI reliable in production. Not ML research.

Your first job is focused: ship a version of K8 that works and feels good, in real users' hands.

Then architect to grow into a platform:

Multi-tenant by design — isolated, access-controlled company knowledge layers.
Secure external-DB connections — organisations link private knowledge via encrypted APIs. GDPR-compliant, zero data leakage. Getting this demonstrably right is what unlocks enterprise.
White-label ready — from “Powered by K8” to fully white-labeled, and eventually custom AI personas organisations own. Early architecture decides feature vs. rebuild.
Voice-first economics — voice minutes cost real money; metering, session limits and conversion triggers are product features, not afterthoughts.

Later phase: a system that learns from every conversation. Don't build it day one — but architect so the door stays open. The roadmap is a direction, not a spec — you'll be in the customer conversations that shape it, and you'll help decide what we build, in which order.

Success in the first 6 months for us is shipping a version of K8 that works and inspires, feels good and shows user the potential of what we are building. The architecture of multi-tenant design is set and the first business customers are connected to our platform including a company knowledge layer.

Requirements

What we're looking for

Proven track record shipping digital products — AI apps, SaaS, or marketplaces. We care what you've shipped, not your credentials.
Hands-on LLM product experience: agent orchestration, RAG and vector search, prompt/context engineering, OpenAI/Anthropic. Voice agents (Vapi, Twilio, ElevenLabs, Cartesia) a bonus.
Strong judgment in platform architecture, backend (TypeScript/Node or similar), and multi-tenant data design. Secure third-party integration, GDPR, or white-label experience a strong plus.
Concept MVP scalable platform, including the unglamorous parts: evals, reliability, CI/CD, unit economics.
Fluent in AI-native dev workflows — you ship faster with AI coding agents and expect your future team to.
Reads the business context yourself. Comfortable when assumptions still need validating and priorities shift fast.
Founder-minded, mission-driven, in it for the long-term upside. Netherlands-based preferred — we value meeting in person.

Benefits

What you get

Meaningful true co-founder-level equity — you shape the company, not just the codebase.
No salary in the early phase, with an honest path to competitive comp as we grow.
Full ownership of product, technology and direction, plus the chance to build and lead the engineering team.
A founding team with strong ecosystem networks and commercial track record, backed by the HIC Venture Studio (venture building, business design, fundraising, partnerships).

Interested, or know someone who is? Show us something you've built — reach out directly.

www.ReApplic8.com

Snel solliciteren

Verfijn je zoekopdracht

application developer vacatures in leiden

ReApplic8 - Co-Founder & CTO

Teamleider ICT

Product Owner - Back Office, Integration & Ecosystem

Software Engineer DevOps

Mobile Software Security Evaluator

Developer Relations Intern

Software Generalist — Tools, Dashboards, Frameworks & Performance (Python / Rust / C++ / Web)

Product Owner – Global Navigation Satellite Systems (GNSS)

Quality Engineering Architect [Financial Services]

Principal Full Stack Engineer, AI Platform & Agents

Solution Engineer – Device Security Hardware (Keysight Device Security)

Product Owner

Information & Security Officer

Project Manager

Senior Security Evaluator – Crypto code review

MD Mexico

Analog Electronics Engineer

Thermo-Mechanical Engineer

IT Product Manager

Afstudeerstage Software Development (HBO/WO) – Start september 2026

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