Johnson Controls

 Required Experience/Qualifications 

• 3+ years of production experience with Go 

• Deep understanding of REST API design, batch processing, and websocket-based real-time data 

• Strong experience with MariaDB/MySQL, including query optimization and data modeling 

• Familiarity with GORM ORM 

• Experience with RabbitMQ as an event broker • Ability to read and understand PHP code (used for legacy migration) 

Nice to have: 

• Performance tuning for high-load systems (10K+ RPS) 

• Experience integrating or using Centrifugo (subscriptions, pub-sub messaging) 

• Familiarity with profiling tools and scalable Go architectures • Experience with PHP-to-Go migrations is a big plus 

Responsibilities 

• Develop and maintain core backend services (REST APIs, batch jobs, WebSocket services) 

• Ensure the system scales and performs reliably under high load 

• Optimize database interactions and handle complex relational data models 

• Assist in refactoring and migrating business logic from PHP 

• Collaborate with DevOps and frontend teams to deliver robust functionality 

Company Offers 

• Fully remote work setup 

• Competitive compensation 

• 8-hour working day 

• 20 days paid vacation + 8 days paid sick leave 

• Medical insurance 

• Friendly, professional team and long-term project 

Johnson Controls is a global leader in smart, sustainable building solutions, security, and fire protection. With over 140 years of innovation, we develop cutting-edge technologies that enhance efficiency, safety, and comfort in buildings worldwide. Our mission is to create a smarter, healthier, and more sustainable future through intelligent automation and advanced energy solutions.

Required Experience/Qualifications 

• 3+ years of experience with JavaScript frontend development 

• Strong knowledge of React and Redux • Hands-on experience with Material UI (MUI v5) and Material Design 3 

• Experience with RESTful APIs and WebSocket-based interactions 

• Familiarity with external charting libraries (e.g., Chart.js, Recharts, etc.) • Good understanding of UI/UX principles and component-based architecture 

• Willingness to work with legacy code during a migration period 

Nice to have: 

• Initiative in introducing testing best practices (e.g., unit/integration tests) 

• Experience with performance tuning and accessibility 

• Familiarity with UI/UX best practices 

• Willingness to learn backend technologies (Go, Gin, Centrifuge) Responsibilities 

• Participate in the migration from Material Design 2 to Material Design 3 • Refactor and improve existing UI components and architecture 

• Implement new UI features and optimize existing ones 

• Collaborate with backend developers to integrate APIs and real-time data 

• Gradually phase out legacy UI while building the new frontend from the ground up 

• Participate in design discussions and propose improvements 

Company Offers 

• Fully remote work setup 

• Competitive compensation 

• 8-hour working day 

• 20 days paid vacation + 8 days paid sick leave 

• Medical insurance 

• Friendly, professional team and long-term project 

About the Project: Johnson Controls is an international developer and manufacturer of high quality electronic security systems and components, operating in Ukraine via its subcontractor in Kyiv. You will join during a critical UI modernization phase, contributing directly to the new user experience aligned with modern design standards.

We are looking for a highly skilled mid-level Flutter Developer to join our team. 

If you're passionate about building high-quality mobile applications and enjoy working in a collaborative environment, this role is for you.

Required Experience & Qualifications

• In-depth experience with Flutter architecture and widget lifecycle
• Strong knowledge of Reactive Programming (e.g. Streams, RxDart)
• 3+ years of professional experience in iOS or Android development
• Solid understanding of Object-Oriented Programming (OOP) and SOLID principles
• Practical, hands-on experience with RESTful APIs
• Proficiency in Redux or other state management solutions (e.g. Provider, Bloc)

• Familiarity with Test-Driven Development (TDD) and writing unit tests

   

What We Offer

• $2500–$5000 salary range (depending on qualifications and technical proficiency)
• Option to work remotely (or from our Kyiv office)
• Flexible 8-hour workday
• 20 paid vacation days annually
• Health insurance package

• A professional, growth-oriented environment

   

Responsibilities

• Develop and maintain cross-platform Flutter applications
• Write clean, testable code and maintain unit tests
• Perform regular code reviews and ensure code quality
• Collaborate on defining and improving application architecture

About the Project:

Visonic is an international leader in the development and manufacturing of high-quality electronic security systems and components.

About Johnson Controls

Johnson Controls is a global leader in smart, sustainable building solutions, security, and fire protection. With over 140 years of innovation, we develop cutting-edge technologies that enhance efficiency, safety, and comfort in buildings worldwide. Our mission is to create a smarter, healthier, and more sustainable future through intelligent automation and advanced energy solutions.

Full Stack Developer (Middle)

Location: Remote | Salary: €4,500–€8,000

Johnson Controls is looking for a passionate Middle Full Stack Developer to join our team and work on innovative web applications in the field of smart security systems.
If you enjoy writing clean, scalable code and want to grow in a professional and supportive environment — we’d love to hear from you!

What You’ll Do:

• Design and develop scalable, high-quality web applications
• Build and integrate RESTful APIs
• Create clean, responsive, and maintainable code
• Work closely with the engineering team to launch new features
• Maintain code integrity, consistency, and performance

What We’re Looking For:

• 4+ years of experience in PHP, JavaScript, HTML, and CSS development
• Strong knowledge of OOP principles
• Hands-on experience with React and Redux
• Solid background in building and integrating RESTful APIs
• Good knowledge of MySQL or MariaDB databases
• Experience with Node.js is a plus
• Familiarity with Go, Dart, or Apache Thrift RPC will be an advantage
• Strong communication skills and ability to work in a team

We Offer:

• Fully remote work with flexible working hours
• Competitive salary: €4,500–€8,000 (depending on skills and experience)
• 20 paid vacation days + 8 paid sick days
• Medical insurance
• A professional, friendly, and supportive environment

• Opportunity to work on global, high-impact projects

   

About Johnson Controls:

Johnson Controls is a global leader in smart building solutions, security, and fire protection systems.
With over 140 years of innovation, we are committed to creating smarter, safer, and more sustainable environments through cutting-edge technologies and intelligent automation.
In Ukraine, we operate through our partner office in Kyiv, delivering world-class security solutions to global markets.