Technology stack: Flutter Description: We are looking for a Flutter Senior Developer who knows how to make efficient, fluid mobile interfaces, beautiful UI, animations, transitions and interactions. Our project is Twake (https://twake.app), an open source, secure and privacy-focused chat What will need to be done:

• Together with UI UX designers, developers, analysts and QA to create a beautiful interface on Flutter
• Develop reusable front-end components and libraries
• Proactively analyze performance and improve it
• Mentor junior team members

• Write high-quality, clean, maintainable, reusable code using engineering best practices.
• Analyze requirements, design, and develop features.
• Understand the product, constantly optimize the product, identify and fix problems, improve stability and user experience.
• Collaborate with fellow developers, product managers, user experience designers, and operation engineers to build products with web technologies.
• Optimize application for maximum performance and scalability.
• Participate in regular internal technology sharing and other regional tech events.

BASIC QUALIFICATIONS

• Background in Computer Science/ Information Technology or equivalent
• Experiences with the entire software development lifecycle, including version control (Git), build process, testing, and code release
• Strong experience (3+ years) in NodeJS, Typescript, back-end frameworks (Expressjs, Fastify, etc)
• Highly proficient object-oriented programming paradigm
• 2+ year’s experience in front-end development
• Experience with both consuming and designing RESTful API
• Good level in English skills: written and spoken

PREFERRED QUALIFICATIONS

• Experience in cloud technologies, Docker and Kubernetes, microservices architecture
• Experience of SQL & NoSQL databases
• Experience in writing unit tests
• Experience in Application Security
• Experience mentoring junior software engineers to improve their skills, and make them more effective, product software engineers
• Experience in communicating with users, other technical teams, and senior management to collect requirements, describe software product features, technical designs, and product strategy

• Write high-quality, clean, maintainable, reusable code using engineering best practices.
• Analyze requirements, design, and develop features.
• Understand the product, constantly optimize the product, identify and fix problems, improve stability and user experience.
• Collaborate with fellow developers, product managers, user experience designers, and operation engineers to build products with web technologies.
• Optimize application for maximum performance and scalability.
• Participate in regular internal technology sharing and other regional tech events.

BASIC QUALIFICATIONS

• 3+ years of professional experience in developing websites & web applications
• 2+ years experience with front-end framework, SPA
• Highly proficient with JS framework and its core principles such as
  components, reactivity, and the virtual DOM
• Good understanding of HTML5 and CSS3, including {{ Sass or Less depending
  on your technology stack }}
• Knowledge of functional programming and object-oriented programming
  paradigms
• Good understanding of modern development tools, like Babel, Webpack, and Git
• Ability to write efficient, secure, well-documented, and clean JavaScript code
• Familiarity with automated JavaScript testing, specifically testing frameworks
  such as Jest or Mocha
• Experience with both consuming and designing RESTful APIs
• Experience in TypeScript
• Experience with cross-browser compatibility issues
• Client-side validation and error handling best practices
• English communication is required

NICE TO HAVE

• Experience Angular, VueJS
• Experience working UX/UI application Experience Linux, Docker, Open source
• French-speaking is a plus

Responsibilities:

• Understand proposed features and quickly design and build scalable API’s and
  Cassandra schema & queries
• Develop reusable user interface components and front-end libraries in React.js
• Proactively analyze website performance and implement solutions for improvement
• Collaborate with architects, developers, business analysts, and QA analysts to
  design, develop, and test applications

BASIC QUALIFICATIONS

• 7+ years of experience building complex web applications
• 7+ years of experience developing single page application
• 7+ years of experience coding in JavaScript, HTML, CSS
• 7+ years of experience with automated unit, integration and end-to-end testing
• 5+ years of experience working with Cassandra (or at least SQL) designing schemas and writing optimised queries
• 5+ years of experience integrating systems using Rest APIs and single sign-on
• 3+ years of experience coding robust and secure Rest API’s in Node.js, JSON
• 3+ years of experience developing in React.js, Flutter knowledge is a plus.
• Solid work experience using component-based development on the client side
• Experience with cloud infrastructure and docker
• Deep knowledge to create standards-compliant, cross-browser, mobile compatible front-end code with responsive design
• Deep knowledge of server-side and front-end performance optimization
• UI/UX design skills a huge plus
• Should be a self-starter who is excited to relentlessly solve many technical
  challenges
• Must have excellent written and verbal communication skills
• Should manage own time and work well both independently and as part of a team
• Speak English fluently, French is a plus

• Gather product requirements (functionalities, speed, safety standards)
• Inspect raw materials and machinery to identify defects and malfunctions
• Monitor all production stages to ensure safety procedures are followed
• Run quality controls on components and final products
• Develop test environments and test cases for all company software products
• Analyze test results, detect issues and track root causes
• Suggest fixes and improvements
• Document technical issues and solution
• Build automated testing systems for regular checks
• Ensure our products and procedures meet industry standards
• Develop the test script/code for technical testing
• Support/train other team members about technical test skills
• Research on other technical test areas and apply to our projects

• Design the software architecture for new features;
• Ensure the maintainability of the product through rigorous monitoring of all contributions to the project: code review, consistency and homogeneity of developments, unit tests;
• Contribute to the integration, testing and deployment of the solution;
• Participate in the life of an AGILE team (daily, demo, retrospectives, spring planning, grooming, …);
• Ensure the correction of anomalies, support tasks;
• Share your experience with other members of the product development team through internal training or facilitation of UDS (University of Knowledge – rapid sharing of experience (<1 hour)) with other employees of the business ;
• Participate in the facilitation of tutorials and tutorials for the OpenHackademy (https://openhackademy.com/) in order to pass on your knowledge to our future recruits;
• Write your feedback on the LINAGORA technology blog (https://blog.linagora.com/) and on (https://medium.com/linagora-engineering); our Medium instance
• Participate as an expert in the development and promotion of white papers published by the company;
• Participate in conferences, meet-ups or other Open Source events

You have real expertise in software development, test writing, TDD, integration and continuous deployment. You have worked on several Scrum projects and have shown particularly interesting velocity during your various experiences.

Required technical skills:

• Years: at least 3 years working with java;
• Languages: Java 11, Java 8;
• Tools: Eclipse, Maven, Git;
• Framework: Spring, Spring-Security, Spring Data, Hibernate;
• Database (languages ​​and design): PostgreSQL, MongoDB.

Appreciable technical skills:

• Jenkins, GitlabCI;
• Apache CXF;
• Tomcat, RabitMq, Swift…;
• Docker, Docker-compose, Kubernetes.

Beyond your skills in development, you have general knowledge of information systems: cloud architecture, databases, API, security, storage, devops … in addition, you have, ideally, participated in animated projects following agile rituals such as those of the SCRUM methodology. This knowledge is an asset in understanding your clients’ contexts.

You will work in the following technological environment:

• Java 11, Java 8, Eclipse, Maven, Nexus, Git, Gitlab, GitlabCI, Jenkins; Tomcat, PostgreSQL, MongoDB, RabitMq, Swift…;
• Spring, Spring-Security, Spring Data, Hibernate, Apache CXF;
• REST Full, XML, JSON;
• AngularJS, Vue.js, NodeJS, Grunt;
• Docker, Docker-Compose, Kubernetes, …

• Establish, maintain and maintain SaaS infrastructure and be responsible for ensuring that the infrastructure works as expected, set up alerts, analytics and logging.
• Develop processes for automatic deployment and testing.
• Determine what tools (API rate limiting, load balancer, security threat detection, etc.) will be needed and together with the team improve the existing infrastructure.
• It will be necessary to make a roadmap for the product with requirements and deadlines.

• Experience with one of the cloud services AWS, Azure, GCloud, or OVH
• Experience in managing all infrastructure including databases, replication, load-
  balancers, web servers, CDNs, CI CD
• Experience with any configuration management system: Ansible, Puppet, Chef, Terraform
• Experience with any CI CD system: Teamcity, Jenkins, Gitlab CI, Github Actions
• Experience with most of the components from our stack
• Ability to independently decompose tasks and bring them to the end.

Advanced English
* Will be a plus **:

• Experience in orchestrating stateful services
• Advanced developer skills
• Experience with multi-region deployments
• Have experience or understanding of STUN / TURN protocols and network operation for video conferencing

– Developing and delivering high-level and detailed storyboards, concept diagrams, user interface sketches, mock-ups, prototypes, and detailed design specifications to effectively communicate interaction and design concepts and solutions.
– Participating in the development/evolution of design systems, contributing visual design standards and front-end solutions based on UI components, color theory, typography, page templates, and more.
– Supporting your development team as they deliver products that implement your designs.
– Defining requirements, scheduling projects & conceptualizing visuals.

– Degree in Design, Fine Arts, or related field, 3+ years of experience in the same position.

– Good level of English.

– Proficiency in standard design and prototyping applications (i.e. Photoshop, Illustrator, InDesign, Adobe XD, Sketch, InVision, Figma).

– Strong sense of typography and layout and good attention to detail.

– Awareness of good contemporary digital design & pixel perfection.

– Good understanding of UX method (creation of personal, qualitative research, user flow, wireframe, interactive prototypes…).

– Some experience and knowledge of working with print is essential.

– Knowledge of HTML, CSS, Responsive web design a plus.

– Experience with video, animation, and motion graphics is highly regarded.