Middle Backend Developer (IoT domain) at Sigma Software

• Design, develop, and maintain backend services using TypeScript and NestJS within a microservices architecture 
• Integrate third-party services and APIs into the platform, ensuring high reliability and performance 
• Work with PostgreSQL, MongoDB, and Redis for efficient data storage and retrieval 
• Collaborate with cross-functional teams to deliver new features for the platform’s new product 
• Participate in the full software development lifecycle, from requirements analysis to deployment and support 
• Support DevOps activities, including CI/CD processes, infrastructure setup, and monitoring 
• Monitor and optimize application performance, scalability, and security 
• Troubleshoot and resolve technical issues 
• Ensure code quality by following best practices and project conventions 
• Contribute to improving team processes and technical documentation 
• Proactively identify and communicate risks, blockers, and improvement opportunities 
• Adapt to changing requirements and priorities 

• At least 3 years of commercial experience in backend development with JavaScript/TypeScript stack 
• Strong experience with Node.js and NestJS 
• Experience integrating third-party services and APIs 
• Proficiency with PostgreSQL, MongoDB, and Redis 
• Familiarity with microservices architecture and messaging systems (RabbitMQ) 
• Upper-Intermediate English level 
• Strong communication and teamwork skills 
• Ability to work proactively and independently 
• Experience collaborating in cross-functional teams 

WILL BE A PLUS

• DevOps experience (Docker, Kubernetes, Terraform) 
• AWS services (EC2, VPC, S3, Step Functions, Lambda, IAM, Cognito) 
• Experience with Grafana, Prometheus, GitHub Actions 
• Knowledge of Kafka, GraphQL, Linux 
• Experience with real-time data processing and/or EV charger integration 

PERSONAL PROFILE

• Strong self-organization skills with efficient task management 
• Ability to prioritize tasks to meet project goals 
• Proactive in identifying and resolving blockers 
• Clear and open communication with team members and stakeholders 
• Transparency in work progress and outcomes 
• Comfortable working in a dynamic environment with evolving requirements