Senior Backend Developer (GoLang)

We are seeking an experienced Backend Developer to take ownership of critical platform services spanning connectivity, data processing, automation, notifications, and authentication. You will design, develop, and maintain the core backend infrastructure that powers the entire platform, working closely with cross-functional teams to deliver robust, scalable solutions and developing and maintaining core platform services, connectivity infrastructure, data processing systems, automation workflows, and security components for a complex multi-module web platform. This role requires strong technical expertise across multiple domains, from protocol implementations and data processing to scripting engines and security systems.

Responsibilities

• Develop and maintain connectivity services supporting multiple protocols: MQTT, OPC, REST, Kafka, and others
• Implement and manage OPC UA Server functionality Ensure reliable data ingestion from diverse sources and systems
• Transform data from any format to platform-native format
• Handle data calculations, unit conversions, and calculation chaining
• Develop data analysis and alarming subsystems
• Build and maintain trending and historical data subsystems
• Develop executor for user-defined Python scripts and SQL queries
• Build and maintain service that handles and executes user-defined workflows and rule chains
• Enable user customization and extensibility through scripting capabilities
• Develop and maintain email notification infrastructure
• Implement multiple messaging services including Slack, Google Chat, SMS, and others Ensure reliable, timely delivery of notifications across channels
• Develop and maintain authentication services Second-Factor Security: Implement TOTP (Time-based One-Time Password) and other security measures
• Ensure platform security and user data protection
• Participate in architecture decisions with the development team
• Contribute to functionality design and technical planning
• Lead feature design from technical perspective
• Provide ongoing support for deployed services and troubleshooting
• Collaborate with frontend, QA, and product teams on feature development

Key Competencies

• 5+ years of backend development experience using Go programming language
• Proven track record building complex, multi-service platforms
• Strong problem-solving and system design skills Experience with IoT, industrial systems, or data-intensive applications (preferred)
• Self-motivated with ability to take ownership of entire subsystems
• Excellent collaboration and communication skills
• Comfortable working across the full backend stack
• Passion for clean code, testing, and maintainable architecture
• System Architecture: Design scalable, maintainable backend services
• Protocol Implementation: Work with diverse communication protocols and standards
• Data Processing: Handle high-volume data transformation and analysis
• Security: Implement robust authentication and authorization systems
• DevOps Mindset: Deploy, monitor, and maintain production services
• Documentation: Create clear technical documentation for services and APIs

Technical requirements

• Tools & Platforms
  • Operating Systems: Linux, Windows
  • Containerization: Docker
  • Development Environment: JetBrains products (IntelliJ, GoLand, PyCharm, etc.) or similar
  • Programming Languages & Technologies Go (primary backend language) C / C++ (system-level development) Python (scripting and automation) SQL (database queries and data management)
  • Experience with additional languages and technologies as neede

Technical Skills

• Strong understanding of distributed systems and microservices architecture
• Experience with message queuing and event-driven architectures
• Knowledge of industrial protocols (OPC UA, MQTT, etc.)
• Database design and optimization API design and development (REST, gRPC, etc.)
• Security best practices and authentication mechanisms I