Devedanos

Asnières-sur-Seine, France

Develop your satisfactory application within a given budget without compromising software quality

We develop your app within a given budget and without compromising software quality Devedanos is part of 3 different groups of French freelancers: La Collab (web development, marketing), Ash & Co (Custom full-stack development), GroupBees (Custom full-stack development, cloud computing, DevOps, AI, ML), and has its partners in copywriting in SEO and Copywriting, and UX/UI + No/Low Code development. As for Devedanos, we specialize in full-stack development with React, Node, Typescript, and AWS. We also provide DevOps and Agile Software development management services as we also specialize in Continuous Delivery. With all of our skills, we can help you start your SaaS, from the strategy, through the marketing, to its application development, maintain or create simple and more complex websites, create cloud computing services... Do you have an idea to develop? LET'S BOOK A FREE 30-MIN CALL to see if we can help you and define a strategy: https://calendly.com/snobour/consulting What makes us different? While most of the industry manages software development the wrong way (like investing millions of € over 3 years of development to realize only then that the market is not interested in their product), we strive to build the least complex yet satisfactory and stable solution to deliver something fast on the market. Our real strength is our project management skills: we know how to discern the real value for the users of an application thanks to our understanding of Lean Manufacturing and Agile Principles. This helps us to organize the development of the features by priority for the end users. This way, we build a solution 100% ready to be used to fulfill the promise made to the users within the defined budget and without compromising the software quality. We reject bureaucratic processes adding no value to the work (SAFe, Scrum...) for the end users and prefer direct interactions with them. Our proper network of trustworthy professional freelancers makes also a difference! How do we work? It is simple: we define a reasonable budget together, and our team works on developing the fastest solution yet stable, that delivers the expected essential service. Only then and if the budget is not burnt down would we build a more advanced solution or add non-essential features. This is the only way to respect your budget. We always leave the solution we develop in a usable/releasable state even if a more advanced solution is still in development. We want quick results and fast feedback on which to build a product that makes a real impact. All of this is thanks to our technical practices (such as continuous delivery, TDD, automated testing, and trunk-based development...). EVERY DAY WE RELEASE NEW FEATURES FOR THE END USERS AND OUR CUSTOMERS. AND YOUR APPLICATION IS ALWAYS IN A USABLE STATE! What do we technically do? We support you in the development and maintenance of single-page applications for the frontend, and backend services (REST, RPC, MQTT, Web-socket, Kafka...), setting up a continuous deployment and integration pipeline passing the code through batteries of tests. We also manage product development integrally. See you soon!

1 person in their team

Speaks English, French

4 projects in their portfolio

Works remotely across the globe

Sortlist member since 2023

Founded in 2019

8 awards conferred

5/5

(1 review)

Services

4 services offered by Devedanos

Description
We develop your entire solution: from UI design, integration, and development, to backend development, automated testing, and deployment.

Technically, we can do the following:
- front-end development of Single Page Applications via Server Side Rendering and Client Side Rendering;
- REST and JSON APIs and GraphQL, or real-time Pub/Sub via WebSocket on the backend;
- ensure code quality with the development of the automated tests (unit, integration, visual, interactive, application, system and performance);
- automate application deployment by setting up Continuous Delivery pipelines, leveraging containerization via Docker, and versioning solutions from Gitlab and GitHub

What are our prices?
We charge usually a €10,4k subscription per month. We require a minimum down payment of 50% before getting to work.
Also, if we define a budget of €50k to develop your idea, we will maybe not need to use it completely.
We will not ask you to pay it in one settlement. Rather, we keep charging for the work of the upcoming month until the application is developed as agreed, and hopefully, the €50k will not be completely consumed.

What we do not accept:
"I want you to commit to the time it will take for you to develop the features listed".
No, we do not estimate precisely how much time we'll spend on a task. Not out of fear of risk, but out of professionalism.
Programming is not a productive activity (where tasks look the same), but a creative activity dependent on several non-deterministic factors that we can't get to know beforehand.
ESTIMATES ARE NOT A RELIABLE PREDICTION TOOL, so we found a way to work without them: WE DON'T CREATE A FEATURE IN ITS MOST ADVANCED VISION IN THE FIRST PLACE, WE SIMPLIFY OR PROPOSE INTELLIGENT, TIME-SAVING ALTERNATIVES SO THAT WE RATHER UPDATES every day. We rely on daily deliveries to our customers and end users to get feedback on those simple features as soon as possible. We find out about their adjustments later. This allows a lot of adjustments at no extra charge for our customers.

Skills:
Architecture and concepts: MVC, FLUX, Data Down Actions UP (DDAU), OOP, SOLID patterns, REST, JSON, RPC, GraphQL, SOAP API, Single Page Application (Server Side Rendering, Client Side Rendering, Static Site Generation), JAMStack, web worker, microservices, serverless, containerization, virtualization, Infrastructure As Code, ORM/ODM,
TDD, BDD, tests (unit, integration, interaction, visual, application, system, performances),
Publish/Subscribe Protocols (Websocket, Message Queuing, Kafka), Design Patterns, Hexagonal Architecture, TMForum

Exploitation Systems(OS): Linux (Ubuntu, Debian, RaspBian, RaspiOS), Mac OS, Windows (XP, 10,11, Server 12,16)

Languages: JavaScript ES5, JSON, PHP7-8, SQL, HTML5, CSS3, XML, SASS, PostCSS, Java SE 8 to 21, Typescript

CSS and UI components Framoworks / Libraries: Bootstrap [4,5], TailwindCSS 2, Bulma CSS, Material UI/MUI, AntDesign, ParkUI

JS Frameworks / Libraries: React.js 16 - 18, Redux, React Apollo, React Router, Jotai, React Context, Ember.js, JQuery, Next.js 12 and 13, Lodash, React Hook Form, Formik, Joi, Zod, Emotion, luxon, svgo, PandaCSS ;

Module bundlers: Webpack, SWC, Babel;

Node.js frameworks: Express.js, Nest.js (Apollo-graphQL), SocketIO, Koa.js

Desktop Node.js frameworks: Electron.js

PHP Frameworks : Symfony (4,5), API-Platform

Databases: PostgreSQL, MySQL, OracleSQL, MongoDB, DoctrineORM, TypeORM, Mikro-ORM, Mongoose

Testing and Quality: Eslint, Prettier, Stylelint, Jest, Mocha, Chai HTTP, Qunit, Coverall, PHPUnit, Cypress, BrowserStack, Nightwatch, Playwright, testing-library, Cucumber, Gherkin, Husky, MirageJS

Versioning: Git, Github, Gitlab, Bitbucket

CI/CD: Gitlab CI, GitHub Actions, Travis CI, AWS Code Pipeline

DevOps: Docker and Docker compose, Serverless Framework

Cloud: Amazon Web Services (Lambda, ECS, ECR, EC2, S3, EFS, Amplify, Route53,
LightSail, IAM, SNS, SES, SQS, API Gateway, DymanoDB, CloudWatch, Secret Manager,
IAM, S3, DynamoDB, BitBucket, CloudFormation, API Gateway, EventBridge, Code Pipeline)

Project/Product management methods and tooling: Agile, Lean Manufacturing, CollabNet, Jira;

Documentation: Markdown, JSDoc, Chromatic, Storybook, Confluence;

Marketing method and tools: RGPD, defining a client avatar, niche and offer, SEO, Google, Analytics 4, Plausible, Axeptio;

Visual design tooling: Figma

CMS: Shopify, WordPress/Bedrock, WooCommerce, Strapi CMS, Ghost

Analytics and monitoring: pm2 services, Axiom, Grafana

No/Low Code: Webflow, Bubble
Skills in Web Application (22)
Web DevelopmentProgrammingResponsive DesignOpen SourceDevOpsAPI DevelopmentFull Stack DevelopmentWeb Application DevelopmentCI IntegrationTesting Services+12
Works in Web Application (4)
Clients in Web Application (4)
Groupe RapidoAutomotive | national
Product FeedbackMarketing & Advertising | international
IscoClothing & Accessories | international
ValeoAutomotive | international
Learn more about Web Application
Description
We develop your entire solution: from UI design, integration, and development, to backend development, automated testing, and deployment.

Technically, we can do the following:
- front-end development of Single Page Applications via Server Side Rendering and Client Side Rendering;
- REST and JSON APIs and GraphQL, or real-time Pub/Sub via WebSocket on the backend;
- ensure code quality with the development of the automated tests (unit, integration, visual, interactive, application, system and performance);
- automate application deployment by setting up Continuous Delivery pipelines, leveraging containerization via Docker, and versioning solutions from Gitlab and GitHub

What are our prices?
We charge usually a €10,4k subscription per month. We require a minimum down payment of 50% before getting to work.
Also, if we define a budget of €50k to develop your idea, we will maybe not need to use it completely.
We will not ask you to pay it in one settlement. Rather, we keep charging for the work of the upcoming month until the application is developed as agreed, and hopefully, the €50k will not be completely consumed.

What we do not accept:
"I want you to commit to the time it will take for you to develop the features listed".
No, we do not estimate precisely how much time we'll spend on a task. Not out of fear of risk, but out of professionalism.
Programming is not a productive activity (where tasks look the same), but a creative activity dependent on several non-deterministic factors that we can't get to know beforehand.
ESTIMATES ARE NOT A RELIABLE PREDICTION TOOL, so we found a way to work without them: WE DON'T CREATE A FEATURE IN ITS MOST ADVANCED VISION IN THE FIRST PLACE, WE SIMPLIFY OR PROPOSE INTELLIGENT, TIME-SAVING ALTERNATIVES SO THAT WE RATHER UPDATES every day. We rely on daily deliveries to our customers and end users to get feedback on those simple features as soon as possible. We find out about their adjustments later. This allows a lot of adjustments at no extra charge for our customers.

Skills:
Architecture and concepts: MVC, FLUX, Data Down Actions UP (DDAU), OOP, SOLID patterns, REST, JSON, RPC, GraphQL, SOAP API, Single Page Application (Server Side Rendering, Client Side Rendering, Static Site Generation), JAMStack, web worker, microservices, serverless, containerization, virtualization, Infrastructure As Code, ORM/ODM,
TDD, BDD, tests (unit, integration, interaction, visual, application, system, performances),
Publish/Subscribe Protocols (Websocket, Message Queuing, Kafka), Design Patterns, Hexagonal Architecture, TMForum

Exploitation Systems(OS): Linux (Ubuntu, Debian, RaspBian, RaspiOS), Mac OS, Windows (XP, 10,11, Server 12,16)

Languages: JavaScript ES5, JSON, PHP7-8, SQL, HTML5, CSS3, XML, SASS, PostCSS, Java SE 8 to 21, Typescript

CSS and UI components Framoworks / Libraries: Bootstrap [4,5], TailwindCSS 2, Bulma CSS, Material UI/MUI, AntDesign, ParkUI

JS Frameworks / Libraries: React.js 16 - 18, Redux, React Apollo, React Router, Jotai, React Context, Ember.js, JQuery, Next.js 12 and 13, Lodash, React Hook Form, Formik, Joi, Zod, Emotion, luxon, svgo, PandaCSS ;

Module bundlers: Webpack, SWC, Babel;

Node.js frameworks: Express.js, Nest.js (Apollo-graphQL), SocketIO, Koa.js

Desktop Node.js frameworks: Electron.js

PHP Frameworks : Symfony (4,5), API-Platform

Databases: PostgreSQL, MySQL, OracleSQL, MongoDB, DoctrineORM, TypeORM, Mikro-ORM, Mongoose

Testing and Quality: Eslint, Prettier, Stylelint, Jest, Mocha, Chai HTTP, Qunit, Coverall, PHPUnit, Cypress, BrowserStack, Nightwatch, Playwright, testing-library, Cucumber, Gherkin, Husky, MirageJS

Versioning: Git, Github, Gitlab, Bitbucket

CI/CD: Gitlab CI, GitHub Actions, Travis CI, AWS Code Pipeline

DevOps: Docker and Docker compose, Serverless Framework

Cloud: Amazon Web Services (Lambda, ECS, ECR, EC2, S3, EFS, Amplify, Route53,
LightSail, IAM, SNS, SES, SQS, API Gateway, DymanoDB, CloudWatch, Secret Manager,
IAM, S3, DynamoDB, BitBucket, CloudFormation, API Gateway, EventBridge, Code Pipeline)

Project/Product management methods and tooling: Agile, Lean Manufacturing, CollabNet, Jira;

Documentation: Markdown, JSDoc, Chromatic, Storybook, Confluence;

Marketing method and tools: RGPD, defining a client avatar, niche and offer, SEO, Google, Analytics 4, Plausible, Axeptio;

Visual design tooling: Figma

CMS: Shopify, WordPress/Bedrock, WooCommerce, Strapi CMS, Ghost

Analytics and monitoring: pm2 services, Axiom, Grafana

No/Low Code: Webflow, Bubble
Skills in Software Development (10)
A/B TestingAgile DevelopmentCustom Software DevelopmentNodeJS DevelopmentSoftware ArchitecturePHP DevelopmentSQL ProgrammingLegacy Code RemovalObject OrientedSoftware Consulting
Works in Software Development (4)
Clients in Software Development (4)
Groupe RapidoAutomotive | national
Product FeedbackMarketing & Advertising | international
IscoClothing & Accessories | international
ValeoAutomotive | international
Learn more about Software Development
Description
We develop your entire solution: from UI design, integration, and development, to backend development, automated testing, and deployment.

This can be a one-pager landing page, or a multi-page static or dynamic website for a showcase or e-commerce website.
In javascript, PHP, Bubble, Worpdress, Webflow with our partners. On Vercel, OVH, AWS, Heroku, or anything else.

Technically, we can do the following:
- front-end development of Single Page Applications via Server Side Rendering and Client Side Rendering;
- REST and JSON APIs and GraphQL, or real-time Pub/Sub via WebSocket on the backend;
- ensure code quality with the development of the automated tests (unit, integration, visual, interactive, application, system and performance);
- automate application deployment by setting up Continuous Delivery pipelines, leveraging containerization via Docker, and versioning solutions from Gitlab and GitHub

What are our prices?
- A one-pager website on Webflow or Bubble with UX/UI Design: price starts at 1500€
- A landing page content optimized for SEO and copywriting in French: 633€
- Technical maintenance: 82€ per hour
- An e-commerce website on WordPress with Woo Commerce: price starts at 2500€

Our prices do not include the VAT. But we include the support of our clients throughout the whole process

What we do not accept:
"I want you to commit to the time it will take for you to develop the features listed".
No, we do not estimate precisely how much time we'll spend on a task. Not out of fear of risk, but out of professionalism.
Programming is not a productive activity (where tasks look the same), but a creative activity dependent on several non-deterministic factors that we can't get to know beforehand.
ESTIMATES ARE NOT A RELIABLE PREDICTION TOOL, so we found a way to work without them: WE DON'T CREATE A FEATURE IN ITS MOST ADVANCED VISION IN THE FIRST PLACE, WE SIMPLIFY OR PROPOSE INTELLIGENT, TIME-SAVING ALTERNATIVES SO THAT WE RATHER UPDATES every day. We rely on daily deliveries to our customers and end users to get feedback on those simple features as soon as possible. We find out about their adjustments later. This allows a lot of adjustments at no extra charge for our customers.

Skills:
Architecture and concepts: MVC, FLUX, Data Down Actions UP (DDAU), OOP, SOLID patterns, REST, JSON, RPC, GraphQL, SOAP API, Single Page Application (Server Side Rendering, Client Side Rendering, Static Site Generation), JAMStack, web worker, microservices, serverless, containerization, virtualization, Infrastructure As Code, ORM/ODM,
TDD, BDD, tests (unit, integration, interaction, visual, application, system, performances),
Publish/Subscribe Protocols (Websocket, Message Queuing, Kafka), Design Patterns, Hexagonal Architecture, TMForum

Exploitation Systems(OS): Linux (Ubuntu, Debian, RaspBian, RaspiOS), Mac OS, Windows (XP, 10,11, Server 12,16)

Languages: JavaScript ES5, JSON, PHP7-8, SQL, HTML5, CSS3, XML, SASS, PostCSS, Java SE 8 to 21, Typescript

CSS and UI components Framoworks / Libraries: Bootstrap [4,5], TailwindCSS 2, Bulma CSS, Material UI/MUI, AntDesign, ParkUI

JS Frameworks / Libraries: React.js 16 - 18, Redux, React Apollo, React Router, Jotai, React Context, Ember.js, JQuery, Next.js 12 and 13, Lodash, React Hook Form, Formik, Joi, Zod, Emotion, luxon, svgo, PandaCSS ;

Module bundlers: Webpack, SWC, Babel;

Node.js frameworks: Express.js, Nest.js (Apollo-graphQL), SocketIO, Koa.js

Desktop Node.js frameworks: Electron.js

PHP Frameworks : Symfony (4,5), API-Platform

Databases: PostgreSQL, MySQL, OracleSQL, MongoDB, DoctrineORM, TypeORM, Mikro-ORM, Mongoose

Testing and Quality: Eslint, Prettier, Stylelint, Jest, Mocha, Chai HTTP, Qunit, Coverall, PHPUnit, Cypress, BrowserStack, Nightwatch, Playwright, testing-library, Cucumber, Gherkin, Husky, MirageJS

Versioning: Git, Github, Gitlab, Bitbucket

CI/CD: Gitlab CI, GitHub Actions, Travis CI, AWS Code Pipeline

DevOps: Docker and Docker compose, Serverless Framework

Cloud: Amazon Web Services (Lambda, ECS, ECR, EC2, S3, EFS, Amplify, Route53,
LightSail, IAM, SNS, SES, SQS, API Gateway, DymanoDB, CloudWatch, Secret Manager,
IAM, S3, DynamoDB, BitBucket, CloudFormation, API Gateway, EventBridge, Code Pipeline)

Project/Product management methods and tooling: Agile, Lean Manufacturing, CollabNet, Jira;

Documentation: Markdown, JSDoc, Chromatic, Storybook, Confluence;

Marketing method and tools: RGPD, defining a client avatar, niche and offer, SEO, Google, Analytics 4, Plausible, Axeptio;

Visual design tooling: Figma

CMS: Shopify, WordPress/Bedrock, WooCommerce, Strapi CMS, Ghost

Analytics and monitoring: pm2 services, Axiom, Grafana

No/Low Code: Webflow, Bubble

UX/UI Design: Figma, User Testing, Persona elaboration, Prototyping, Wireframe, Moodboard
Skills in Website Creation (20)
Website DevelopmentShowcase WebsiteResponsive Web DesignWeb ContentInternetSmall Business Web DesignWeb Hosting ManagementWebsite OptimizationFront End DevelopmentMultilingual Website+10
Works in Website Creation (3)
Clients in Website Creation (3)
Groupe RapidoAutomotive | national
Product FeedbackMarketing & Advertising | international
ValeoAutomotive | international
Learn more about Website Creation
Description
As we are specialized in full-stack development, we can obviously also maintain them: troubleshooting bugs, monitoring the performances, adding new features if the technology used for your solution allows it.

Your issue is related with PHP, Node.js, React, Wordpress... Or a hosting service like Heroku, Vercel, OVH. A DNS configuration that prevent your website to be online or email delivery issue? We can help you

Our price start at 82€ for one hour.
Skills in Website Administration (2)
Server ConfigurationDomain Management
Works in Website Administration (3)
Review in Website Administration (1)
Elynis Martis
Clients in Website Administration (3)
Groupe RapidoAutomotive | national
IscoClothing & Accessories | international
ValeoAutomotive | international
Learn more about Website Administration

Team

1 member in Devedanos's team

StoryDevedanos was created in France, in 2019, by Sébastien NOBOUR, a full-stack developer who debuted in this domain in 2017 by passion. We noticed that most of the industry manages software development the wrong way. Not with us as we are Lean and truly Agile

Awards

Devedanos was awarded 8 times

React API-Platform CRM development2020-9-1PHP, Javascript, REST API, Single Page Application

Symfony 5 Monolithic app development2019-11-1PHP, Symfony Development

Serverless Framework Node.js AWS Lambda Function2021-2-1AWS, Lambda Function, backend develpment, Cloud development

Nest.js Backend REST and GraphQL APIs development2021-2-1Node.js backend development

Reviews

1 review for Devedanos

5/5

(1 reviews)

Elynis MartisOwner at Bunitessa

5/5

I really enjoyed working with Sébastien. You can really feel he has a lot of passion and knowledge. Sébastien is very clear in his way of communicating. He as well does not hesitate to give additional tips or advice when needed. He did an EXCELLENT job for my website!

ServiceWebsite Administration

SectorManagement Consulting

Team1 - 2

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Contact

Contact details of Devedanos

Details

https://www.devedanos.com

Headquarter4 Avenue Laurent Cély, Asnières-sur-Seine, France