Middle Full-Stack Engineer (JS + Go)

• Build and improve product dashboards and internal web tools used across the AdTech domain, including publisher- and platform-facing experiences
• Develop and maintain backend APIs and microservices powering reporting, integrations, and core product workflows
• Support internal services used by engineering and threat research teams, translating operational needs into reliable product capabilities
• Refactor and enhance existing codebase for performance and maintainability
• Collaborate closely with teammates on feature delivery, bug fixing, integration testing, and deployment through development/staging environments
• Work across multiple products and codebases within the same sprint
• Participate in engineering routines such as ticket grooming, task breakdown, estimation, and technical improvements
• Contribute to system reliability and modernization efforts, including service migrations and improved deployment/rollback practices
• Participate in code reviews, knowledge sharing, and team best practices
• Document work clearly to support maintainability and knowledge sharing

• 3+ years of experience in software engineering
• Strong knowledge of JavaScript core concepts (Event Loop, Promises, Async/Await, Prototypes, Closures)
• Solid understanding of Golang fundamentals (Goroutines, Channels, Interfaces, Error handling)
• Experience with React (hooks, state management via Redux Toolkit/Zustand/Context API, component lifecycle)
• Strong backend development skills with Node.js and RESTful APIs using Express.js, NestJS, or Fastify
• Experience in working with relational and non-relational databases, combined with a drive to optimize queries and enhance existing database architectures
• Basic Docker knowledge for managing local development environments
• Advanced Git workflows (feature branching, rebasing, conflict resolution)
• Experience writing unit and integration tests (Jest, React Testing Library, Go testing package)
• Upper-Intermediate level of English

WILL BE A PLUS

• Snowflake: DWH concepts, data processing, analytical queries
• MongoDB: NoSQL concepts, document modeling, aggregation pipelines
• SQL: Writing/optimizing complex queries, understanding indexes, joins, relational database design
• Basic DevOps tooling: Kubernetes (view logs, basic concepts), Grafana (use dashboards for monitoring)

PERSONAL PROFILE

• Collaborative mindset and open communication style
• Curiosity and willingness to learn new tools
• Good organizational skills and task management in fast-paced environments