Société de développement logiciel à Paris

La Station F et le pôle French Tech font de Paris la première place tech d'Europe continentale, portée par la fintech, la deeptech et le luxe digital. 011BQ conçoit des logiciels sur mesure pour les entreprises parisiennes — applications métier, plateformes SaaS et intégrations API — avec une conformité RGPD intégrée dès la conception, sans les coûts d'une agence locale.

10 000+

Entreprises tech à Paris et en Île-de-France

1 300+

Projets livrés dans le monde entier par 011BQ

4,9 / 5

Note moyenne client

350+

Spécialistes internes

Paris concentre plus de 10 000 startups tech et la plus forte densité de licornes d'Europe continentale, avec un écosystème particulièrement dynamique en fintech, IA et luxe digital, porté par Station F et le programme French Tech.

Chef de projet dédié — un seul interlocuteur pour toute la durée du projet

Certifié ISO 27001:2013 — sécurité des données conforme RGPD dès la conception

Contrats à prix fixe disponibles — budget maîtrisé avant le début du développement

350+ spécialistes internes en développement, design, QA et marketing

Tarification compétitive face aux agences parisiennes, sans compromis sur la qualité

Expérience sectorielle fintech et deeptech avec des résultats mesurables

Certifié ISO 9001:2015 — processus qualité adaptés aux exigences du marché parisien

Certifié ISO 27001:2013 — sécurité des données conforme aux obligations RGPD des entreprises françaises

Contrats à prix fixe disponibles — visibilité budgétaire totale avant le lancement du projet

Comment nous livrons un projet logiciel

Un processus structuré, de l'architecture au support post-lancement.

01

Cadrage et architecture

Nous définissons l'architecture technique et les contrats d'API avant d'écrire une ligne de code, pour que votre équipe et la nôtre travaillent sur la même base.

02

Développement en sprints

Des sprints de deux semaines avec une version fonctionnelle livrée à chaque fin de sprint, validée selon des critères d'acceptation définis avec vous.

03

Tests et sécurité

Tests unitaires et d'intégration, audit de sécurité et vérification de conformité RGPD avant toute mise en production.

04

Lancement et support

Suivi post-lancement, mises à jour des dépendances, et un accord de support pour faire évoluer le logiciel dans la durée.

Questions Fréquemment Posées

011BQ développe-t-il des logiciels conformes au RGPD pour les entreprises françaises ?
Oui. Notre certification ISO 27001:2013 encadre le traitement des données et nos architectures sont conçues pour respecter les exigences RGPD dès la conception (privacy by design).
Combien coûte un projet de développement logiciel sur mesure à Paris ?
Cela dépend de la portée du projet, mais nous proposons des contrats à prix fixe avec un budget clair validé avant le démarrage du développement.
Travaillez-vous avec des startups de la French Tech ?
Oui, nous accompagnons aussi bien des startups en phase d'amorçage que des entreprises établies, avec une expérience particulière en fintech et deeptech.
Quel est le délai de démarrage d'un projet ?
Une équipe dédiée peut généralement démarrer sous 1 à 2 semaines après la validation du cahier des charges.
Travaillez-vous avec des équipes internes existantes ?
Oui, nous pouvons intégrer nos développeurs à votre équipe existante ou livrer le projet de façon autonome, selon votre préférence.
Que se passe-t-il après la livraison du projet ?
Nous proposons des contrats de support et de maintenance pour les correctifs, mises à jour de sécurité et évolutions futures.

Avis des clients

Approuvé par l'industrie Leaders

The outcomes of our partnership with ByteQuest Softwares Pvt. Ltd. on an AI-Powered Predictive Analytics Platform surpassed our expectations. Their team's strong machine learning and data engineering skills allowed them to develop a solution that improved our operational efficiency and forecasting accuracy. During the project, ByteQuest provided insightful feedback to improve the system, followed deadlines, and communicated clearly. Every step of the process demonstrated their proactive attitude and dedication to excellence. ByteQuest Softwares Pvt. Ltd. is a superb choice for dependable and creative AI development services.

FL

Fred Lebhart

Agency Founder & CEO at efelle creative

We partnered with ByteQuest Softwares Pvt. Ltd. for end-to-end mobile app development for our service booking platform. From initial planning to final deployment, their team showed strong expertise in both frontend and backend technologies. They followed a structured project management approach with clear milestones, regular updates, and proactive feedback. Even with evolving requirements, they remained flexible and committed to delivering quality work. The final product met our functional and design expectations, with clean code and reliable performance. Post-launch support was prompt, addressing minor issues efficiently. ByteQuests professionalism, responsiveness, and focus on quality make them a trustworthy development partner. We confidently recommend them to businesses looking for dependable software development services.

RV

Remon Vos

CEO at CTP

We worked with ByteQuest Softwares Pvt. Ltd. on a full-cycle development project, and our experience has been thoroughly positive. From the initial consultation to final delivery, their team maintained clear communication and demonstrated strong technical expertise in both frontend and backend development. Project milestones were well-defined, and timelines were mostly respected, even when minor scope adjustments were required. Their flexibility and willingness to incorporate feedback made the process smooth and efficient. The final product was delivered with clean, robust code and met all our functional and design expectations. Post-deployment support was prompt minor issues were resolved quickly and professionally. ByteQuests structured project management and dedication to quality make them a dependable partner for custom software development projects. We would confidently recommend ByteQuest Softwares Pvt. Ltd. to any organization seeking reliable, skilled developers and an organized project delivery process.

SD

Shane Delia

Director at Delia Group

We partnered with ByteQuest for an AI development project, and the results exceeded expectations. Their team demonstrated deep technical expertise, delivering scalable and efficient AI solutions tailored to our needs in the financial services sector. They were proactive, responsive, and committed to understanding our business goals. ByteQuest helped us streamline operations and unlock new insights through advanced analytics. Their professionalism and innovation made them a standout partner. Highly recommended for any organization seeking AI-driven transformation.

PS

Peter Stephenson

PRDE Compliance Manager at Arca

Partnering with BYTEQUEST SOFTWARE on our digital strategy was one of the most pivotal decisions weve made at Digital Umbrella. As an agency focused on delivering marketing excellence, we needed a strategic partner who could bring structure, clarity, and measurable direction to our own digital transformation. BYTEQUEST exceeded every expectation.Their team conducted a thorough audit of our online presence, competitive landscape, and customer behavior. They then crafted a customized strategy that addressed our positioning, SEO, performance metrics, and omnichannel opportunities. Every recommendation was backed by research and industry insight, and their ability to connect data with action was truly impressive.BYTEQUEST didnt just deliver a planthey worked closely with our leadership to align it with our business goals and internal capabilities. They helped us streamline our messaging, optimize our content flow, and identify high-impact digital channels. The improvements in visibility, engagement, and lead generation were noticeable within the first quarter.What sets BYTEQUEST apart is their commitment to results and long-term growth. They were responsive, detail-oriented, and proactive throughout the entire process. For any business serious about scaling with strategy at its core, BYTEQUEST SOFTWARE is a trusted partner worth investing in.

BH

Beyler Heshimli

Lead Frontend Developer at Digital Umbrella

At DPDK Digital Agency, weve worked with numerous development partners globally, but BYTEQUEST SOFTWARE stood out for all the right reasons. We engaged them for a highly customized web development project that required not only technical execution but also strategic thinking and collaborative agility.From the onset, BYTEQUEST demonstrated a deep understanding of our vision. They translated our complex design specifications into a clean, high-performing, and scalable web experience. Their team was incredibly responsive, quick to iterate, and well-versed in the latest frameworks and web standards. Communication was consistent and proactive a rare trait in offshore development teams.What we especially appreciated was their ability to think beyond code. BYTEQUEST offered valuable insights during UX decisions, performance optimization, and mobile responsiveness. The final product was delivered on schedule and exceeded our expectations in both functionality and user experience.Theyve since become our go-to development partner, and we confidently recommend BYTEQUEST SOFTWARE to any agency or business looking for a skilled, reliable, and innovative tech team.

MV

Micheal Vromans

Chief Creative Officer (CCO) at DPDK Digital Agency

ByteQuest Software surpassed our expectations with a sleek, responsive website that aligns perfectly with our brand. Their design team is adept at creating visually engaging layouts leveraging whitespace, cohesive typography, and intuitive navigation to enhance clarity and usability. The site performs flawlessly across devices, ensuring fast loading times and seamless browsing. ByteQuest collaborative approach made all the difference: they welcomed feedback, offered thoughtful design adjustments, and explained choices clearly. Their work resulted in a polished, user-centric web presence that's already driving higher engagement. Highly recommended for any business seeking a standout,

CM

Chris Massetti

President at Donwil

ByteQuest Software brought a high level of technical expertise and innovation to our project. They understood complex requirements with ease and proposed smart, scalable solutions that greatly improved our product. Their team stays ahead of industry trends and integrates the latest technologies seamlessly. We were particularly impressed by their problem-solving skills and ability to think outside the box.ByteQuest Software didn't just build what we asked for they improved it. They're a valuable asset to any business looking to innovate and grow.

UE

Umaima Ejaz

Co-Founder at Your Handle

ByteQuest Software truly stand out for their exceptional customer support and collaborative spirit. From day one, they made us feel like partners, not just clients. They were always available to answer questions, provide updates, and make thoughtful recommendations. Their friendly and approachable team made communication easy and effective. Every suggestion we made was taken seriously, and their ability to adapt to our needs was impressive. ByteQuest Software made the development process enjoyable and productive we couldn't have asked for a better team.

RS

Raymond Smith

Licensed Real Estate Salesperson at Byson Real Estate Co.

Working with ByteQuest Softwares was an excellent experience from start to finish. Their team is highly professional, responsive, and truly committed to delivering quality results. They took the time to understand our needs and exceeded our expectations in every way. Communication was clear and timely, and their technical expertise was evident throughout the project. We appreciated their attention to detail and innovative solutions. I highly recommend ByteQuest Softwares to anyone looking for a reliable and skilled development partner.

PC

Paul Chu

Junior Web Designer / Developer at Comit Developers

I recently worked with ByteQuest softwares for the development of my e-commerce website, and I couldn't be more pleased with the results.From the very start, their team demonstrated a deep understanding of my business needs. They took the time to listen to my vision and provided insightful recommendations that truly improved my project. The communication throughout the process was exceptional; I was kept informed at every stage and felt like a valued partner.

JB

Joan bardeletti

Head of product at mano mano

I've had the privilege of working with Shashank for over a month, and I can confidently say he's an outstanding developer for your project. Shashank goes beyond just writing code; he draws on his deep expertise to steer you toward the best solutions, clearly explaining why certain methods may not work. By choosing him for your development needs, you're assured of being in expert hands. His patience, humility, and dedication make every interaction smooth and enjoyable. With Shashank, you can expect a seamless process and successful results.

ReactJS Website Audit and Optimization

The outcomes of our partnership with ByteQuest Softwares Pvt. Ltd. on an AI-Powered Predictive Analytics Platform surpassed our expectations. Their team's strong machine learning and data engineering skills allowed them to develop a solution that improved our operational efficiency and forecasting accuracy. During the project, ByteQuest provided insightful feedback to improve the system, followed deadlines, and communicated clearly. Every step of the process demonstrated their proactive attitude and dedication to excellence. ByteQuest Softwares Pvt. Ltd. is a superb choice for dependable and creative AI development services.

FL

Fred Lebhart

Agency Founder & CEO at efelle creative

We partnered with ByteQuest Softwares Pvt. Ltd. for end-to-end mobile app development for our service booking platform. From initial planning to final deployment, their team showed strong expertise in both frontend and backend technologies. They followed a structured project management approach with clear milestones, regular updates, and proactive feedback. Even with evolving requirements, they remained flexible and committed to delivering quality work. The final product met our functional and design expectations, with clean code and reliable performance. Post-launch support was prompt, addressing minor issues efficiently. ByteQuests professionalism, responsiveness, and focus on quality make them a trustworthy development partner. We confidently recommend them to businesses looking for dependable software development services.

RV

Remon Vos

CEO at CTP

We worked with ByteQuest Softwares Pvt. Ltd. on a full-cycle development project, and our experience has been thoroughly positive. From the initial consultation to final delivery, their team maintained clear communication and demonstrated strong technical expertise in both frontend and backend development. Project milestones were well-defined, and timelines were mostly respected, even when minor scope adjustments were required. Their flexibility and willingness to incorporate feedback made the process smooth and efficient. The final product was delivered with clean, robust code and met all our functional and design expectations. Post-deployment support was prompt minor issues were resolved quickly and professionally. ByteQuests structured project management and dedication to quality make them a dependable partner for custom software development projects. We would confidently recommend ByteQuest Softwares Pvt. Ltd. to any organization seeking reliable, skilled developers and an organized project delivery process.

SD

Shane Delia

Director at Delia Group

We partnered with ByteQuest for an AI development project, and the results exceeded expectations. Their team demonstrated deep technical expertise, delivering scalable and efficient AI solutions tailored to our needs in the financial services sector. They were proactive, responsive, and committed to understanding our business goals. ByteQuest helped us streamline operations and unlock new insights through advanced analytics. Their professionalism and innovation made them a standout partner. Highly recommended for any organization seeking AI-driven transformation.

PS

Peter Stephenson

PRDE Compliance Manager at Arca

Partnering with BYTEQUEST SOFTWARE on our digital strategy was one of the most pivotal decisions weve made at Digital Umbrella. As an agency focused on delivering marketing excellence, we needed a strategic partner who could bring structure, clarity, and measurable direction to our own digital transformation. BYTEQUEST exceeded every expectation.Their team conducted a thorough audit of our online presence, competitive landscape, and customer behavior. They then crafted a customized strategy that addressed our positioning, SEO, performance metrics, and omnichannel opportunities. Every recommendation was backed by research and industry insight, and their ability to connect data with action was truly impressive.BYTEQUEST didnt just deliver a planthey worked closely with our leadership to align it with our business goals and internal capabilities. They helped us streamline our messaging, optimize our content flow, and identify high-impact digital channels. The improvements in visibility, engagement, and lead generation were noticeable within the first quarter.What sets BYTEQUEST apart is their commitment to results and long-term growth. They were responsive, detail-oriented, and proactive throughout the entire process. For any business serious about scaling with strategy at its core, BYTEQUEST SOFTWARE is a trusted partner worth investing in.

BH

Beyler Heshimli

Lead Frontend Developer at Digital Umbrella

At DPDK Digital Agency, weve worked with numerous development partners globally, but BYTEQUEST SOFTWARE stood out for all the right reasons. We engaged them for a highly customized web development project that required not only technical execution but also strategic thinking and collaborative agility.From the onset, BYTEQUEST demonstrated a deep understanding of our vision. They translated our complex design specifications into a clean, high-performing, and scalable web experience. Their team was incredibly responsive, quick to iterate, and well-versed in the latest frameworks and web standards. Communication was consistent and proactive a rare trait in offshore development teams.What we especially appreciated was their ability to think beyond code. BYTEQUEST offered valuable insights during UX decisions, performance optimization, and mobile responsiveness. The final product was delivered on schedule and exceeded our expectations in both functionality and user experience.Theyve since become our go-to development partner, and we confidently recommend BYTEQUEST SOFTWARE to any agency or business looking for a skilled, reliable, and innovative tech team.

MV

Micheal Vromans

Chief Creative Officer (CCO) at DPDK Digital Agency

ByteQuest Software surpassed our expectations with a sleek, responsive website that aligns perfectly with our brand. Their design team is adept at creating visually engaging layouts leveraging whitespace, cohesive typography, and intuitive navigation to enhance clarity and usability. The site performs flawlessly across devices, ensuring fast loading times and seamless browsing. ByteQuest collaborative approach made all the difference: they welcomed feedback, offered thoughtful design adjustments, and explained choices clearly. Their work resulted in a polished, user-centric web presence that's already driving higher engagement. Highly recommended for any business seeking a standout,

CM

Chris Massetti

President at Donwil

ByteQuest Software brought a high level of technical expertise and innovation to our project. They understood complex requirements with ease and proposed smart, scalable solutions that greatly improved our product. Their team stays ahead of industry trends and integrates the latest technologies seamlessly. We were particularly impressed by their problem-solving skills and ability to think outside the box.ByteQuest Software didn't just build what we asked for they improved it. They're a valuable asset to any business looking to innovate and grow.

UE

Umaima Ejaz

Co-Founder at Your Handle

ByteQuest Software truly stand out for their exceptional customer support and collaborative spirit. From day one, they made us feel like partners, not just clients. They were always available to answer questions, provide updates, and make thoughtful recommendations. Their friendly and approachable team made communication easy and effective. Every suggestion we made was taken seriously, and their ability to adapt to our needs was impressive. ByteQuest Software made the development process enjoyable and productive we couldn't have asked for a better team.

RS

Raymond Smith

Licensed Real Estate Salesperson at Byson Real Estate Co.

Working with ByteQuest Softwares was an excellent experience from start to finish. Their team is highly professional, responsive, and truly committed to delivering quality results. They took the time to understand our needs and exceeded our expectations in every way. Communication was clear and timely, and their technical expertise was evident throughout the project. We appreciated their attention to detail and innovative solutions. I highly recommend ByteQuest Softwares to anyone looking for a reliable and skilled development partner.

PC

Paul Chu

Junior Web Designer / Developer at Comit Developers

I recently worked with ByteQuest softwares for the development of my e-commerce website, and I couldn't be more pleased with the results.From the very start, their team demonstrated a deep understanding of my business needs. They took the time to listen to my vision and provided insightful recommendations that truly improved my project. The communication throughout the process was exceptional; I was kept informed at every stage and felt like a valued partner.

JB

Joan bardeletti

Head of product at mano mano

I've had the privilege of working with Shashank for over a month, and I can confidently say he's an outstanding developer for your project. Shashank goes beyond just writing code; he draws on his deep expertise to steer you toward the best solutions, clearly explaining why certain methods may not work. By choosing him for your development needs, you're assured of being in expert hands. His patience, humility, and dedication make every interaction smooth and enjoyable. With Shashank, you can expect a seamless process and successful results.

ReactJS Website Audit and Optimization

1 300+ projets · 50+ pays

Certifié ISO 9001:2015 & ISO 27001:2013.

Commencez Votre Projet

Prêt à commencer ?

Construisons leEnsemble pour l'avenir !