Mobile App Developer

...
IntroFor this position we are only looking for candidates located in Greece, Germany or Austria.

Nairon GmbH is a Swiss startup building AI voice agents that answer and make phone calls for businesses. Our platform runs real-time conversations over the phone and on the web, connected to our customers' telephony and business tools. We value clear communication, thoughtful engineering, and a collaborative approach to problem-solving. Join us as we continue to develop tools that make a difference.

TasksAs a Full-Stack & Mobile Engineer at Nairon GmbH, you will build our product on the web and on the phone in the customer's hand. Your responsibilities will include:

Designing, developing and maintaining our web application with Next.js, React, Tailwind CSS and TypeScript: the flow editor, call analytics, billing and partner tools.
Building our native companion app with Expo / React Native or Swift.
Building features across the stack, from the user interface to the database with Prisma and PostgreSQL, and the Python services behind them.
Owning features end to end: turning customer needs into requirements, shipping them and checking that they help.
Applying DevOps practices to support development and deployment, including Docker and, when appropriate, Kubernetes.
Participating in technical discussions, code reviews and architectural planning.
RequirementsExperience:

Any relevant experience in web or mobile development is welcome; we are open to junior, mid-level and senior candidates who demonstrate strong practical skills and a willingness to learn.

Technical Skills:

Required:

Proficiency with Next.js, React and TypeScript.
Experience building mobile apps with Expo / React Native, Swift or a comparable stack.Nice to have:

Tailwind CSS, Prisma, PostgreSQL or Supabase.
Python and FastAPI for backend services.
Docker and Kubernetes basics; experience with real-time features, audio or AI products.Communication:

English proficiency is essential, both written and …

...Wir suchen einen erfahrenen Senior Full Stack Developer mit fundierten Kenntnissen in PHP, Laravel und vue.js. Du bist verantwortlich für die Entwicklung und Wartung moderner Webanwendungen und arbeitest eng mit unserem Frontend- und DevOps-Team zusammen.

Aufgaben

Entwicklung und Wartung von Backend-Systemen mit PHP und Laravel

Entwurf und Implementierung von RESTful APIs

Integration von Frontend-Komponenten mit vue.js

Optimierung von Datenbankabfragen (MySQL/PostgreSQL)

Sicherstellung von Code-Qualität durch Code-Reviews und Tests

Zusammenarbeit mit Frontend- und DevOps-Teams

Analyse und Behebung von Fehlern und Performance-Problemen

Dokumentation von Prozessen und Architekturen

Qualifikation

Mehrjährige Berufserfahrung als Backend Developer

Sehr gute Kenntnisse in PHP und Laravel

Erfahrung mit vue.js und modernen Frontend-Technologien

Sicherer Umgang mit relationalen Datenbanken (MySQL/PostgreSQL)

Erfahrung mit Versionskontrollsystemen (z.B. Git)

Kenntnisse in der Entwicklung von RESTful APIs

Erfahrung mit agilen Entwicklungsmethoden (Scrum/Kanban)

Von Vorteil: Erfahrung mit Firebase

Gute Deutsch- und Englischkenntnisse

Benefits
Full Remote

Flexible Arbeitszeiten

Stelle ist auf Stundenbasis / monatliche Abrechnung

Bitte geben Sie bei einer Bewerbung den gewünschten Stundensatz mit an. Vielen Dank.

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...Chez Datarelevant, nous transformons la manière dont les entreprises exploitent leurs données grâce à l'IA. Notre solution SaaS combine analyse documentaire intelligente, génération de requêtes SQL assistée et création automatisée de dashboards, le tout au service de la performance des métiers. Start-up dynamique et en forte croissance, nous recherchons un(e) Business Developer pour accompagner notre développement commercial.

Vos missions

Participer à la définition de la stratégie commerciale et d'acquisition clients

Identifier et qualifier de nouveaux prospects (startups, PME, ETI, grands comptes)

Générer des leads et prendre des rendez-vous avec des décideurs

Participer à des démonstrations produits et aider à la construction des offres commerciales

Suivre et relancer les prospects jusqu’à la signature

Travailler en étroite collaboration avec l'équipe marketing pour améliorer les outils d’aide à la vente (présentations, pitchs, cas clients)

Contribuer activement à l'amélioration continue du process commercial

Vos compétences

Étudiant(e) en école de commerce, de management ou équivalent

Vous avez une appétence forte pour l'innovation, la tech et l'IA

Vous etes orienté(e) résultats, proactif(ve) et enthousiaste

À l'aise à l'écrit comme à l'oral, vous savez convaincre avec naturel

vous avez un excellent niveau de français, et un bon niveau d'anglais est un plus

Avantages

Une expérience au cœur d'une start-up innovante, avec de vraies responsabilités

Une montée en compétences rapide sur la vente B2B dans l’univers tech/IA

Une ambiance bienveillante, entrepreneuriale et tournée vers l'excellence

La possibilité de pré-embauche à la fin du stage

La possibilité de travailler en full remote

Rejoins Datarelevant et participe à l’aventure d’une start-up ambitieuse qui révolutionne l’exploitation de la donnée grâce à l’IA.

Nous n’attendons plus que toi pour grandir ensemble !

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...Please do not apply if you are only Germany speaking PM and not a Frontend Developer ! Thanks.

Aufgaben

WordPress Frontend Design

Customizing Templates

Developing WordPress Sites

Setting Up WooCommerce Products and Variants

Modifying Design, Templates, Add-ons

Updating Content and Images via FTP (WordPress, Typo3, E-commerce Shops)

Editing HTML/CSS Templates

Seeking Long-term Partnership

Remote Work Only

Direct Communication with Developers and Clients

Installing/Modifying HTML Templates

Creating Responsive and Valid HTML

Availability During Business Hours

Developing Extensions

Specializing in Wordpress and WooCommerce

Qualifikation
mandatory:

German speaking / German reading

contacts directly customer by email or phone/s kype (german language)

paid by hours on project basis

at least 3 year experience wordpress / frontend

Benefits
- Full Remote

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...With our brands Holzprofi24 and Leondo, we operate some of the leading e-commerce platforms for home & garden in Europe. We combine cutting-edge web technologies, data-driven online marketing and powerful logistics to deliver an outstanding shopping experience to millions of customers. Our shops are active across multiple European markets and continue to grow rapidly – with a strong focus on user experience, performance, scalability and modern frontend architectures.

Design and develop modern, high-performance and user-friendly user interfaces for our Europe-wide online shops

Continuously improve and optimize our frontend architecture, especially using Vue.js and Nuxt

Collaborate closely with UX/UI designers, backend developers, product owners and stakeholders

Analyze user requirements and translate them into technical concepts, implementation plans and effort estimates

Optimize performance of existing systems with a focus on loading times, Core Web Vitals and conversion rates

Ensure high code quality through code reviews, testing and clean architecture



Strong experience with JavaScript, TypeScript, HTML and CSS

Very good knowledge of modern JavaScript frameworks, ideally Vue.js and Nuxt

Experience working with REST APIs

Basic knowledge of e-commerce platforms (e.g. Shopware) is a plus

High quality standards, structured working style and passion for clean, maintainable code

Enthusiasm for modern web technologies, performance optimization and UX

Very good German skills or fluent English

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...This is a dual role, split between approximately 60% AI-assisted development and agent orchestration, and 40% SQL Server development supporting large-scale data migration. You’ll work within the development team and report to the Software Manager, combining practical AI skills with strong SQL expertise to deliver reliable, efficient solutions.

Key Responsibilities

AI-Assisted Development & Agent Orchestration (c. 60%)

Use AI coding assistants, such as Claude Code or GitHub Copilot, across the development lifecycle, including code generation, refactoring, testing, documentation and review.

Build and maintain effective prompts, system instructions, reusable skills and context to produce consistent, reliable AI outputs.

Design and orchestrate agents and multi-agent workflows, including task decomposition, tool use, agent hand-offs and human-in-the-loop checkpoints.

Connect agents to internal systems, databases and APIs, for example through MCP or function calling.

Evaluate AI output for accuracy, regression, cost and latency, and refine workflows based on results.

Apply appropriate safeguards for data privacy, security and hallucination risk, particularly when customer or school data is involved.

Identify and prototype opportunities to apply AI to development and data migration, and share best practice by supporting and coaching colleagues.

SQL Server & Data Migration (c. 40%)

Design, develop and maintain scalable SQL Server T-SQL solutions and related tools for data cleansing, migration and reconciliation.

Provide database performance-tuning expertise for internal and third-party systems, using AI tooling where appropriate.

Define technical requirements with non-technical colleagues in the Data Migration Team, and work with third parties to understand their software and support migration projects.

Manage SQL Server database environments used for data migration, including backup and recovery in test environments.

Prepare and expose data safely for age…

...Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

Innovate with Tether

Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.

But that’s just the beginning:

Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.

Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.

Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.

Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.

Why Join Us?

Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as …