Kvinivel Inc (ex Tesseris Pro)

Joined in 2019
25% answers

WHO WE ARE — A team of professional developers, quality engineers, business analysts, designers and managers; — We see ourselves as a the software development partner that you can count on; — Our goal is to satisfy our clients’ needs and to make their ideas come true; — We have been developing complicated custom software for our clients since 2011; — Our team works remotely. WHAT SERVICES DO WE OFFER? 1. Full cycle of software development: — Business analysis; — Requirements specification; — Software development and development operations; — Quality assurance; — Initial support. 2. We have experience in following areas: — Web applications with modern architecture and design; — Cross-platform mobile applications; — Desktop applications for data analysis, specialized editors and others. WHAT TECHNOLOGIES DO WE USE? — Cutting-edge UI development frameworks like ReactJS and Angular; — Desktop HTML/JS technologies like ElectronJS; — Lightweight and fast server solutions like NodeJs, AWS Lambda and .Net Core; — Modern Web technologies like WebSockets, WebRTC, HTTP2 and others; — Cross-platform mobile technologies like Apache Cordova and React Native; — Microsoft .Net technology stack including ASP.Net, WPF, MS SQL Server, Azure Services, Unity and many others; — NoSQL DBMS like MongoDB.

  • · 357 views · 138 applications · 6d

    Full-Stack JavaScript Developer (React/Node.js)

    Full Remote · Countries of Europe or Ukraine · 1 year of experience · B1 - Intermediate
    Requirements: Expert knowledge of JavaScript, HTML, CSS, and modern JS libraries. Strong proficiency in React.js, Redux.js, React Native. Experience with Node.js and frameworks (Express.js, NestJS). Work with SQL/MySQL databases. Experience with cloud...

    Requirements:

     

    • Expert knowledge of JavaScript, HTML, CSS, and modern JS libraries.
    • Strong proficiency in React.js, Redux.js, React Native.
    • Experience with Node.js and frameworks (Express.js, NestJS).
    • Work with SQL/MySQL databases.
    • Experience with cloud services (AWS or similar).
    • Strong debugging and problem-solving skills.
    • Ability to optimize applications for speed, scalability, and performance.
    • English level: B2 or higher.
      Strong communication, task management, and stress management skills.
    • Experience working in fast-paced, dynamic environments.

     

    Key Responsibilities:

     

    • Develop and maintain web applications across the full stack.
    • Optimize applications for performance, scalability, and reliability.
    • Debug and resolve technical issues across frontend and backend.
    • Design and implement search functionalities and performance improvements.
    • Work with Docker and cloud-based services (AWS).
    • Write clean, maintainable, and well-documented code.
    • Research, develop, and demonstrate proof-of-concepts using the latest tools and technologies.

     

     

     

     

     

    More
  • · 132 views · 34 applications · 6d

    Software Engineer (WPF)

    Full Remote · Countries of Europe or Ukraine · 1 year of experience · B2 - Upper Intermediate
    Software Engineer (WPF / .NET) Responsibilities: Develop and maintain WPF applications using .NET. Solve algorithmic challenges involving real-time data streams. Perform basic memory and performance optimizations. Participate in code reviews, bug...

    Software Engineer (WPF / .NET)

     

    Responsibilities:

     

    • Develop and maintain WPF applications using .NET.
    • Solve algorithmic challenges involving real-time data streams.
    • Perform basic memory and performance optimizations.
    • Participate in code reviews, bug fixing, and performance analysis.

       

    Requirements:

     

    • 1.5+ years of experience in software development.
    • Solid knowledge of C#.
    • Experience with WPF and MVVM.
    • Strong understanding of data structures and algorithms.
    • Basic understanding of memory profiling and garbage collector (GC) behavior.
    • Familiarity with unit testing frameworks (xUnit/NUnit).
    • Knowledge of low-allocation techniques.
    • Ability to write clean, maintainable, and testable code.
    • Basic understanding of network protocols (TCP, WebSockets, gRPC).

       

    Would be a plus:

    • Knowledge of JavaScript, HTML, CSS, and other web technologies.

     

    English — Upper-Intermediate or higher.

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  • · 89 views · 32 applications · 13d

    Manual QA Engineer

    Full Remote · Countries of Europe or Ukraine · 1 year of experience · B1 - Intermediate
    We are looking for a detail-oriented Manual QA Engineer What you need to do: - Manual testing of web and mobile applications - Writing and supporting test cases, checklists - Creating bugs in Jira or similar systems - Checking UI, logic, cross-browser...

    We are looking for a detail-oriented Manual QA Engineer 

     

    What you need to do:

    - Manual testing of web and mobile applications

    - Writing and supporting test cases, checklists

    - Creating bugs in Jira or similar systems

    - Checking UI, logic, cross-browser compatibility

    - Close interaction with developers and product

    - Regression and exploratory testing

    - Reading documentation and communicating in chats in English

     

    Requirements:

    - 0.5-1  year of experience in manual testing

    - Knowledge of test documentation and QA processes

    - Experience with bug tracking systems (Jira, Trello, etc.)

    - Attention to detail, systems thinking

    - English level: B1+ (reading and writing technical documentation , chatting, communication with employees and clients)

     

    A plus:

    - Experience/understanding of API testing (Postman, REST)

    - Basic knowledge of SQL

     

    What we offer:

    - Remote + flexible schedule

    - Friendly team, no bureaucracy

    - Growing international project

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