Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
• Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.

What we offer

• A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
• A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.                  

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 
Refer them! 

Speechify is committed to a diverse and inclusive workplace. 
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Opportunity to lead key engineering and product decisions
• Actively shipping production code for the Speechify iOS app
• Work within a dedicated product team
• Participate in product discussions to shape the product roadmap
• Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

• Experience. You've worked on products that scaled to a large user base
• Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
• Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
• Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Technical skills. Swift, SwiftUI

Technical Requirements:

• Swift Programming Language
• SwiftUI experience
• Experience in Multithreading Programming
• Working with CI/CD infrastructure
• Experience with Fastlane
• SOLID principles, the ability to write every single class according to SOLID
• Experience with Git and understanding of different Git strategies

What We offer:

• A fast-growing environment where you can help shape the company and product
• An entrepreneurial crew that supports risk, intuition, and hustle
• The opportunity to make a big impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
• Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
• Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
• Work in one of the fastest growing sectors of tech: Intersection of Artificial Intelligence and Audio

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

We're looking to hire for our Data side of our AI team at Speechify. This role is responsible for all aspects of data collection to support our model training operations. We are able to build high-quality datasets at petabyte-scale and low cost through a tight integration of infrastructure, engineering, and research work. We are looking for a skilled Software Engineer to join us.

What You’ll Do

• Be scrappy to find new sources of audio data and bring it into our ingestion pipeline
• Operate and extend the cloud infrastructure for our ingestion pipeline, currently running on GCP and managed with Terraform.
• Collaborate closely with our Scientists to shift the cost/throughput/quality frontier, delivering richer data at bigger scale and lower cost to power our next-generation models.
• Collaborate with others on the AI Team and Speechify Leadership to craft the AI Team’s dataset roadmap to power Speechify’s next-generation consumer and enterprise products.

An Ideal Candidate Should Have

• BS/MS/PhD in Computer Science or a related field.
• 5+ years of industry experience in software development.
• Proficiency with bash/Python scripting in Linux environments
• Proficiency in Docker and Infrastructure-as-Code concepts and professional experience with at least one major Cloud Provider (we use GCP)
• Experience with web crawlers, large-scale data processing workflows is a plus
• Ability to handle multiple tasks and adapt to changing priorities.
• Strong communication skills, both written and verbal.

What we offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest-growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Chez Decathlon, notre objectif est de « rassembler les gens à travers le sport dans le but de rendre le bien-être accessible à tous ». Tu rejoindras le domaine Value Chain, véritable colonne vertébrale de l’entreprise. Au sein du sous-domaine Industry & Manufacturing, notre ambition est de façonner une industrie responsable via des plateformes numériques intelligentes.

💡 Contexte Projet 

Le projet DPM (Digital Panel Management) est l'application web de référence qui permet aux acheteurs de Decathlon d'évaluer les fournisseurs avec lesquels ils travaillent, de planifier leur collaboration et de prendre des décisions stratégiques pour l'avenir. C'est l'outil qui transforme la gestion de notre panel industriel (environ 1 450 fournisseurs dans 45 pays) en une expérience digitale unifiée, remplaçant les processus manuels et les fichiers disparates.

🎯 Ta Mission 

En tant que développeur junior au sein du groupe de produit SRM & Industrial Costing, ta mission est de contribuer à la construction et à l'évolution de la plateforme DPM. Tu participeras au développement de fonctionnalités clés permettant de visualiser la performance des fournisseurs et d'orienter les choix de sourcing mondiaux de Decathlon. C'est un terrain de jeu idéal pour apprendre à manipuler des architectures web modernes tout en ayant un impact direct sur la stratégie d'achat du groupe.

🛠 Tes Responsabilités

• Développement Fullstack : Participer au développement des nouvelles fonctionnalités de DPM, en veillant à la qualité du code et au respect des standards de l'équipe.
• Valorisation de la Donnée : Aider à l'intégration et à la récupération des données pour alimenter les indicateurs de performance des fournisseurs.
• Qualité & Tests : Assurer la robustesse de tes développements par la mise en place de tests unitaires et d'intégration, garantissant la fiabilité des décisions prises via l'outil.
• Apprentissage DevSecOps : Collaborer avec le référent sécurité (Security Champion) pour monter en compétence sur la remédiation des vulnérabilités et la sécurisation des données.

💻 La Stack Technique

• Frontend : React (Design System Vitamin).
• Backend : NestJS
• Data : PostgreSQL, Databricks
• Cloud & Ops : 100% Google Cloud Platform (GCP), Kubernetes, Github Actions.
• Monitoring : Datadog.

👤 Ton Profil

• Formation : Diplômé(e) d'une école d'ingénieur ou d'un Master en informatique.
• Premiers pas : Tu as une première expérience (stage, alternance) en développement NodeJS et / ou sur l'écosystème React.
• Rigueur technique : Tu es convaincu(e) que le testing est indissociable d'un développement de qualité.
• Esprit d'analyse : Tu aimes comprendre le besoin métier derrière une ligne de code (ici, aider les acheteurs à mieux piloter leurs partenaires).
• Collaboration : Tu apprécies le travail en équipe agile et tu es prêt(e) à partager tes idées.
• Anglais : Capacité à travailler dans un contexte international.

🎁 Ce que nous offrons

• Mentorat technique : Tu seras entouré(e) d'ingénieurs expérimentés et de Tech Leads pour t'accompagner dans ta progression.
• Flexibilité : Mode de travail hybride
• Localisation : Lille (BTWIN Village).
• Package : Actionnariat salarié, primes, et accès aux certifications Decathlon Academy.

Prêt(e) à digitaliser le futur de notre panel industriel ? Rejoins l'aventure DPM ! 🔥

Chez Decathlon, notre objectif est de « rassembler les gens à travers le sport dans le but de rendre le bien-être accessible à tous ». Tu rejoindras le domaine Value Chain, véritable colonne vertébrale de l’entreprise, dont la promesse est de développer, produire et livrer durablement nos produits partout dans le monde. Au sein du sous-domaine Industry & Manufacturing, notre ambition est claire : façonner une industrie responsable via des plateformes numériques intelligentes et de la donnée génératrice de valeur.

💡 Contexte Projet

Le projet Price Your Component (PYC), est une initiative stratégique majeure pour la maîtrise de nos coûts de revient. Son objectif est de collecter et de permettre la négociation des prix composants auprès de nos fournisseurs. En rejoignant l'équipe PYC, tu participes à l'automatisation de l'analyse des coûts des produits finis, un levier essentiel pour garantir la compétitivité et la transparence de notre panel industriel.

🎯 Ta Mission 

Accompagné(e) par des experts techniques et intégré(e) au groupe SRM & Industrial Costing, ta mission est de contribuer au développement de la plateforme PYC lancée en février 2026. Tu transformeras des flux de données complexes sur les composants en outils digitaux performants pour nos acheteurs mondiaux. C'est l'opportunité idéale pour un(e) développeur(se) junior de monter en compétence sur une stack moderne (Java 21 / React) au sein d'un environnement international à fort impact business.

🛠 Tes Responsabilités

• Développement Fullstack : Participer à l'implémentation des nouvelles fonctionnalités de PYC, en assurant la liaison entre le backend et les interfaces utilisateurs.
• Modernisation Frontend : Contribuer activement au déploiement de React et de notre design system Vitamin Play sur le projet pour offrir une expérience utilisateur fluide et cohérente.
• Fiabilité des Données : Travailler sur l'automatisation de l'intégration des prix composants pour garantir des analyses de coûts (Cost Breakdown) précises et automatisées.
• Culture Testing : Garantir la robustesse de ton code via la mise en place de tests unitaires et d'intégration, indispensables pour un outil traitant des données financières critiques.
• Apprentissage DevSecOps : Collaborer avec le Security Champion de l'équipe pour intégrer les meilleures pratiques de sécurité dès les premières phases de développement.

💻 La Stack Technique

• Frontend : React (NextJS).
• Backend : Java 21 (Spring Boot 3+).
• Data : Architecture Event-Driven (Kafka), PostgreSQL
• Cloud & Ops : 100% Google Cloud Platform (GCP), Kubernetes, Github Actions.
• Qualité : Approche API-First et monitoring via Datadog.

👤 Ton Profil

• Formation : Tu es issu(e) d'une formation supérieure en informatique (Bac+5 ou équivalent).
• Première Expérience : Tu justifies d'une première expérience (stage, alternance ou premier emploi) en Java/Spring Boot et tu as de solides bases en JavaScript/React.
• Curiosité Technique : Tu as soif d'apprendre et tu souhaites évoluer dans un environnement technologique de pointe (Java 21, Cloud natif).
• Sensibilité Produit : Tu comprends l'importance de la donnée pour le business et tu aimes résoudre des problématiques concrètes.
• Anglais : Tu es capable d'échanger avec des interlocuteurs internationaux (Europe, Asie).

🎁 Ce que nous offrons

• Mentorat : Un accompagnement par des Tech Leads expérimentés pour accélérer ta carrière.
• Flexibilité : Mode de travail Hybride
• Localisation : Bureaux basés à Lille (BTWIN Village).
• Package : Actionnariat salarié, primes mensuelles/trimestrielles, matériel au choix (Mac ou Windows).

Prêt(e) à donner du sens à ton code ? Rejoins l'aventure Price Your Component ! 🔥

We are looking for talented Senior Software Engineers, based in Lille

>> Kindly send your resume in english.

At Decathlon, we're passionate about bringing people together and make wellbeing accessible for all.. Our mission is to inspire and enable people to embark on, and enrich their sporting journey, whether they are curious or demanding, beginner or professional. Through innovative product design, sustainability initiatives, and a commitment to customer satisfaction across channels, we aim to revolutionize the way people experience sports.

The Know Your Customer domain is dedicated to building 360° customer insights, driving powerful business levers through an increasingly personalized digital lifecycle. We are currently scaling from local teams to a global organization, spearheading a massive technological transition (Full APIs, Data/Event-Driven Architecture, Microservices, Headless). Operating in 45+ countries with 200 million accounts, we handle 30,000 new sign-ups daily and billions of interactions across channels. Our mission? Delivering the best personalized sport and product recommendations, tailored to each customer's journey and interactions within the Decathlon eco-system

If you're passionate about leveraging technology to enhance the sports experience for hundreds of millions of customers in 70 countries around the world, we want to hear from you.

Are you ready to play?

In this stimulating environment, your role will be to shape the personalization offering of tomorrow, alongside the software that powers it.

• Architecture: Design and evolve microservices (Java 21, SpringBoot 3) ensuring high availability and resilience for global traffic (30k new users/day).
• Collaboration: Collaborate closely with Data Scientists and Engineers to build high-performance APIs that expose personalized recommendations to our customers. Act as a technical multiplier by conducting high-quality code reviews, facilitating knowledge sharing, and mentoring peers without formal management
• Continuous Improvement: Proactively identify and resolve bottlenecks in the code, architecture, or team processes to constantly improve the "Sport User Intelligence" platform.
• Code excellence: Champion software quality by promoting clean code, robust design patterns, and supervising the implementation of TDD to ensure stable deployments.
• DevSecOps Culture: Drive daily production deployments through optimized CI/CD pipelines, enhanced observability , and a "shift-left" approach to security.
• Problem solving: Lead the resolution of complex technical challenges within cross-functional teams, ensuring solutions align with global Decathlon standards.
• Tech Watch: Stay at the forefront of the ecosystem (Event-Driven/Kafka, Cloud-Native/GCP) to prototype and integrate the tools that will power tomorrow’s customer experience.

About the Team/Tech

• Global organization with offices in Amsterdam, Paris, Lille and Nantes, providing 70 countries with digital solution
• Backend & architecture: Java 21+, Spring Boot 3+ (Reactive Programming), Microservices, Event-Driven (Kafka).
• Data & intelligence: Airflow, Spark, OpenSearch (powering recommendation engines)
• Cloud & Infrastructure: GCP, Aiven, Docker, Kubernetes (K8S), FluxCD (GitOps).
• Persistence: PostgreSQL, Redis, Datadog.
• Observability: Datadog
• Quality & CI/CD: GitHub, GitHub Actions, SonarCloud, Karate, JMeter.
• Frontend (Admin UI): React, TypeScript.
• Collaboration: Slack, Google Suite, Confluence, Jira.

What you bring

• 5+ years of experience as a Java Backend Developer (Spring Boot) in high-scale environments.
• Mastery of Backend Design: Expert in building microservices, RESTful APIs, and event-driven architectures (Kafka).
• Operational Mindset: A "you build it, you run it" approach, with experience in monitoring, alerting, and incident management (RCA).
• Engineering Excellence: Solid experience in CI/CD, TDD, and all testing layers (Unit, Integration, Load Testing).
• Cloud & Infrastructure: Proficient with Kubernetes, Terraform, and GCP, ensuring global scalability and resilience.
• Collaborative Leadership: Ability to drive projects across teams and mentor peers through high-quality code reviews.
• Plus: A keen interest in the Data stack or basic knowledge of React for internal UI tools.

What we offer

• Hybrid Work: 2 days of remote work per week.
• Location: Based in our vibrant Decathlon Digital hub in Lille.
• Gear: High-end equipment (Mac or Windows) provided in line with our societal commitments.
• Global Network: A local project team within a worldwide network (offering international career opportunities).
• Growth: Continuous skill development and support (diverse projects, technical certifications in your first year, internal/external training).
• Rewards: Competitive compensation package (employee profit-sharing, monthly/quarterly bonuses).

L'équipe BCP Digital Payment recherche un·e Senior Frontend Software Engineer basé·e à Lille

Nos équipes, regroupées au sein de la BCP (Business Capability Platform), développent la colonne vertébrale nouvelle génération du commerce à Decathlon. Nous fournissons une plateforme composée de multiples briques : gestion du catalogue de produits, des prix, des scénarios de livraison des commandes, du paiement, des avis clients sur nos produits... et ces briques microservices vont être combinées pour construire toutes les expériences commerce à Decathlon: sites Web e-commerce, application mobile, site des séjours sportifs Decathlon ou des activités (randonnées organisées, coach sportif...), "seconde vie" (produits d'occasion), location etc.

REJOINS L'ÉQUIPE DIGITAL PAYMENT

Au sein de cette organisation, l'équipe Digital Payment, est constituée de 3 produits digitaux: 

• OnePay : l'orchestrateur de paiement (le core), qui permet à nos marchands une standardisation et une flexibilité d'accès aux moyens de paiement (plugins) en choisissant le plus pertinent par rapport au contexte, au panier ou au client. Onepay propose notamment un widget de paiement directement intégrés par les différents front-office web
• OneWallet : le portefeuille numérique, qui sauvegarde de manière sécurisée les tokens des différents moyens de paiement et permet ainsi une expérience d'achat sans couture pour nos clients.
• Payment Preview: module d’éligibilité permettant d’exposer les moyens de paiement possibles au plus tôt de l’expérience d’achat.
  
  

TA FUTURE CONTRIBUTION

• Concevoir et optimiser l’architecture du widget de paiement et son intégration transparente chez les marchands partenaires (architecture micro-frontend).
• Développer et maintenir les nouveaux plugins de paiement (front-end) pour diversifier l'offre et l'expérience utilisateur.
• Améliorer et faire évoluer les widgets clés, notamment la simulation de paiement, le Third Party Checkout, et le widget d’intégration sur les systèmes de caisses.
• Contribuer au co-design des solutions avec l’équipe mobile pour l'évolution des SDK natifs.
• Garantir que toutes les solutions développées respectent les standards de performance, d'accessibilité et d'évolutivité les plus élevés.
• Assurer la fiabilité des composants par la rédaction de tests complets et d’une documentation technique de qualité pour faciliter l’adoption par les autres équipes.
• Participer activement aux revues de code et être une force de proposition dans l'évolution de l'architecture front-end de Decathlon.

STACK TECHNIQUE 

• Javascript: typescript, svelte, react

• CI/CD : Github actions, Docker, K8s

• Cloud - Native : GCP / Aiven

• Observability: Datadog, Prometheus, Grafana
  
  

CE QUE TU APPORTES

• Plus de 5 années d'expérience, en tant que développeur.se frontend

• Excellente maîtrise des architectures

• Solide expérience dans la mise en place d’une CI/CD & de toutes les couches de test.

• Bonne connaissance des outils de monitoring et d’alerting. 

• Capacité à travailler efficacement dans un environnement Agile/Scrum.

• Bonnes compétences en résolution de problèmes et en débogage. 

CE QUE NOUS T’OFFRONS

• 2 jours de télétravail par semaine ;

• Matériel fourni en accord avec tes missions et nos engagements sociétaux (Mac, Windows, ou Chromebooks) ;

• Une équipe de projet locale au sein d'un réseau mondial (possibilité de carrière internationale) ;

• Développement des compétences et accompagnement (diversité des projets, certifications techniques dès la première année, formations internes et externes, etc.) ;

• Package de rémunération (participation des employés aux actions de l'entreprise, bonus mensuels/trimestriels).