Senior Backend Programmer at Behaviour Interactive developing cloud - based gaming services. Collaborating with teams to enhance online gaming experiences in a dynamic studio environment.
About the role
- Senior Back-End Engineer at Toptal building an AI-powered career services platform. Collaborating on Rails API, event-driven systems, and third-party integrations.
Responsibilities
- Build, maintain, and own Rails API capabilities across multiple business domain packs.
- Design and implement background job workflows with Sidekiq for async and parallel processing.
- Integrate and optimize LLM-based features for resume analysis, writing, and generation.
- Build and maintain event-driven systems using pub/sub patterns for cross-domain communication.
- Design PostgreSQL schemas and data models with strong attention to data integrity.
- Integrate third-party services, including payment processors, email providers, and cloud services.
- Maintain and evolve a modular monolith architecture with explicit package and domain boundaries.
- Collaborate closely with front-end and infrastructure teams on API contracts, deployment workflows, and production reliability.
- Use AI development tools daily to increase delivery speed, improve code quality, and explore implementation options.
Requirements
- Senior or Principal-level back-end engineering experience, with a strong delivery track record.
- 8+ years of professional Ruby on Rails development.
- Strong PostgreSQL skills, including schema design, migrations, relational modeling, and query optimization.
- Experience with async/background processing systems such as Sidekiq or equivalent.
- Redis proficiency, especially caching and session management.
- Strong REST API design and implementation experience at production scale.
- Experience integrating external APIs such as payment processors, email providers, cloud storage, or support platforms.
- Comfortable working in modular monoliths or similarly structured codebases with clear domain boundaries.
- Ability to reason about scalability, performance, observability, and data integrity.
- Strong technical ownership, including architectural judgment and accountability for implementation decisions.
- Fast, independent, methodical working style with strong written and verbal English communication.
- Daily use of AI development tools to accelerate development and improve engineering quality.
Benefits
- Competitive salary
- Flexible working arrangements
Job title
Job type
Experience level
Salary
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Degree requirement
No Education Requirement
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