At BetSymphony, we are embarking on an ambitious project to revolutionize the online gambling industry. Our vision is to develop a cutting-edge gambling platform that will serve as the backbone for multiple different brands, each with its unique identity and target audience. This platform will leverage the latest technologies to ensure a seamless, secure, and engaging experience for users across the globe. 

As a Fullstack Developer on our team, you will own end-to-end delivery of the BetSymphony Backoffice and frontend applications — a mission-critical internal tool used by operators to manage players, trading, promotions, casino, payments, and reporting in a regulated environment where correctness, performance, and reliability are non-negotiable. 

We are a team that embraces AI-assisted development as a standard part of the engineering workflow. We expect our engineers to actively use AI tools to accelerate delivery, improve code quality, and reduce time spent on repetitive work — not as an experiment, but as an everyday practice. 

Mandatory:  

• 5+ years of total software development experience 

• 3+ years of production experience with React, including complex state management (Redux / Redux Toolkit) 

• 2+ years of Node.js experience, with hands-on use of Express.js in a production BFF or API layer 

• Strong proficiency in TypeScript across both frontend and backend 

• Experience with unit and integration testing (Vitest, Jest, or similar) 

• Experience working in a microservices architecture, including understanding of BFF layer integration 

• Familiarity with Docker and basic Kubernetes workflows 

• Proven experience using AI-assisted development tools (e.g., Claude, Cursor, GitHub Copilot, ChatGPT) in daily work (code generation, refactoring, debugging, testing, documentation) — this is a standard expectation, not optional 

• Strong English communication skills (B2+) 

• Self-organized, proactive, and comfortable working in a distributed team 

Desirable:  

• Experience with JIRA, and Confluence. 

• Experience with ElasticSearch 

• Experience in gambling or online gaming. 

• Experience with TDD development processes.  

• Strong interest in applying AI-powered tools (e.g. Claude, ChatGPT, Copilot, Cursor or similar) to speed up day-to-day development tasks. 

• Proven ability or strong motivation to use AI to reduce development time, improve code quality, and automate repetitive engineering work. 

Job Responsibilities

• New features development within the existing product. 
• Resolving technical problems as they arise. 
• Bug fixing of developed features.
• Actively leverage AI-assisted tools to improve efficiency across coding, testing, debugging, and other SDLC activities
• Writing Unit tests and integration tests. 
• Communicating with team members and the Product team. 
• Scrum ceremonies participation. 
• Mentoring middle and junior colleagues might be required.