Senior Full Stack Developer

Symphony Anywhere / Ukraine

What is the project, and why should you care?

The project is a comprehensive monitoring and analytics platform that processes real-time data from IoT devices across different regions. The platform features advanced geographic mapping, environmental monitoring, device health tracking, and sophisticated data visualization.

We’re seeking a Senior Full Stack Developer with in-depth expertise in modern web technologies and AWS cloud services. You’ll be responsible for building scalable, secure, and performant solutions that handle massive amounts of time-series data while delivering intuitive user experiences.

You will be an excellent fit for this position if you have:

Required Qualifications

  • 5+ years of professional full-stack development experience
  • Expert-level React with modern hooks, context, and state management
  • Advanced Node.js backend development with Express.js or NestJS
  • Production AWS experience with Cognito, Lambda, API Gateway, S3
  • Data visualization libraries and frameworks (Chart.js, D3.js, Grafana)
  • Docker containerization experience
  • Geographic information systems (GIS) and mapping technologies
  • RESTful API design and best practices
  • Database design and optimization (SQL and NoSQL)
  • Security implementation (authentication, authorization, encryption)
  • Code quality practices (testing, linting, documentation)
  • Technical mentoring and code review experience
  • Agile/Scrum methodology experience

Preferred Qualifications

  • Time-series database experience (TimeStream, InfluxDB, or similar)
  • AWS certification (Solutions Architect or Developer Associate preferred)
  • IoT platform development experience with device management
  • Real-time data processing and streaming architectures
  • Multi-tenant SaaS architecture and implementation
  • WebSocket implementations for real-time features
  • Advanced AWS services (EventBridge, Step Functions, DynamoDB)
  • IoT protocols (MQTT, CoAP, HTTP) and device communication

Here are some of the things you’ll be working on:

Full-Stack Development

  • Develop scalable React applications with complex state management
  • Build robust Node.js APIs with proper error handling and validation
  • Implement responsive UI/UX designs
  • Develop real-time data visualization components and dashboards

AWS Cloud Architecture

  • Implement multi-tenant SaaS architecture on AWS
  • Integrate Amazon TimeStream for high-performance time-series data storage
  • Create dashboards for the solution
  • Implement authentication flows with role-based access control

IoT Data Platform

  • Work with real-time data ingestion pipelines for IoT device metrics
  • Develop geographic visualization features with interactive mapping
  • Create device monitoring dashboards with alerting capabilities
  • Implement data aggregation and analytics for environmental monitoring

Performance & Optimizations

  • Optimize database queries and API performance for large datasets
  • Implement secure authentication and authorization patterns
  • Ensure CORS, JWT, and API security best practices
  • Monitor and optimize application performance and user experience

The perks of being a Symphonian

Workation
Laptop as a gift
Symphony Academy
Medical insurance
NEO Program
Loyalty Program
Team Buildings
30 days of vacation
Check all benefits ➔

What is Symphony Solutions?

Symphony Solutions is a Cloud and AI-driven IT company headquartered in the Netherlands. With a remote-first mindset, we have established a global presence spanning over 20 countries. We are a premier software provider of custom iGaming, Healthcare, and Airline solutions. We are devoted to delivering the highest quality of service and offer our expertise in full-cycle software development, cloud engineering, data and analytics, AI services, digital marketing orchestration, and more. 

15 years

on the market

7 offices

in 6 locations

Virtual office

Symphony Anywhere

Why Symphony Solutions could be
a good choice for you:

We are Anywhere. Symphony Anywhere virtual office discovers talent worldwide! With a hybrid model of work and Workation, choose when and where to work, while we provide the tools.

We are experts. Meet and work with top industry leaders in iGaming, Cloud, Agile, and more. We focus on building rapport, bringing forth our expertise, and delivering value to clients.

We disrupt. We embrace the future and contribute to it. In our diverse pool of projects, we work with visionaries that strive to disrupt the market and create solutions with impact.

We are a community. Symphonians build up the foundation for our core beliefs and values, committed and dedicated to the cause, they have passion and drive that embraces and lifts you up.

We learn. Symphony Solutions creates an environment for you to thrive and grow as an expert. We provide opportunities for your professional growth with Symphony Academy and more.

We are Agile! Symphony Solutions is all about Agile, and we mean it! We bring the Agile philosophy to every aspect of our work and set our clients on their Agile transformation journey.

So, you have applied. What’s next?

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