Category Vacancy: Development

Responsibilities:

• Maintain, develop, and improve the company’s existing infrastructure
• Participate in the launch of new products and ensure the reliability and high availability of existing services
• Configure and maintain monitoring systems (Datadog, New Relic, Grafana), monitor infrastructure and microservices, and promptly respond to incidents, errors, and downtime
• Deploy, maintain, and optimize production and development environments for web applications
• Manage Infrastructure as Code (IaC) and ensure infrastructure reproducibility using Terraform
• Deploy and maintain services running in Kubernetes clusters
• Research emerging technologies, evaluate their applicability, and implement the most effective solutions
• Automate infrastructure and operational processes using Ansible, Terraform, and Docker
• Continuously improve professional skills, stay up to date with modern DevOps tools and best practices, and enhance technical expertise

Requirements:

• 1+ year of hands-on experience with Ansible
• Experience working with Terraform (Infrastructure as Code)
• Experience administering and operating Kubernetes
• Strong Linux administration skills, preferably Ubuntu-based systems
• Experience managing Bare Metal servers
• Hands-on experience with AWS cloud services (EC2, RDS, S3, CloudFront)
• Experience configuring and administering Cloudflare
• Experience setting up monitoring and metrics visualization systems (Grafana)
• Knowledge of and hands-on experience with MySQL 8 and Redis 6
• Basic knowledge of RabbitMQ administration
• Experience administering PHP 8+ (Laravel) projects
• Understanding of web infrastructure, networking concepts, and CI/CD processes will be considered an advantage

Responsibilities:

• Develop and maintain features in a high-load monolith, microservices, and internal packages (shared libraries, SDK)
• Integrate APIs and payment systems, work with webhooks and postbacks
• Optimize MySQL queries, caching with Redis, and background job processing with RabbitMQ / Horizon
• Implement realtime functionality based on WebSocket events (Centrifugo / Socket.IO)
• Write concurrency-safe code using locks, mutexes, and atomic operations
• Conduct code reviews and participate in technical decision-making

Requirements:

• 3+ years of commercial experience with PHP and strong knowledge of Laravel: events/listeners, queues, DI, service providers, FormRequest
• Practical understanding and application of SOLID principles
• Experience with MySQL: indexes, query execution plan analysis, optimization of heavy queries; Redis
• Hands-on experience with queues (RabbitMQ / Horizon or equivalents) and asynchronous processing
• Understanding of race conditions and practical experience preventing them
• Experience integrating REST APIs and payment systems, working with HMAC signatures and webhook idempotency
• Experience with Git / GitHub Flow, PRs, and code reviews
• Experience using Docker for local development
• Hands-on experience using AI coding agents — Claude Code, Codex, or similar tools

Working with Claude Code — we expect:

• Break tasks down into steps, use plan mode, and work with parallel subagents
• Critically review the agent’s output: check diffs, understand where the model may hallucinate, and take responsibility for the merged code

Nice to have:

• Vue 3 / Nuxt 3, TypeScript (we have a frontend monorepo)
• Ubuntu, Nginx, PHP-FPM, cron; CI/CD (GitHub Actions)

Responsibilities:

• Test Web / Client-Server systems at all stages of development
• Test REST APIs and Third-party integrations
• Test Admin Panels / Back-office systems
• Analyze application behavior using Chrome DevTools: Network, Console, Application
• Build and maintain testing workflows
• Create and maintain test documentation: test plans, checklists, test cases, and bug reports
• Collaborate with developers and the team to identify and resolve defects
• Track tasks and testing results in Jira, Confluence, and TMS

Requirements:

• 1.5–2+ years of commercial experience in testing Web / Client-Server systems, excluding internships
• Hands-on experience testing REST APIs and Third-party integrations
• Understanding of Webhooks, HTTP status codes, asynchronous requests, and JSON
• Understanding of testing transactional systems, user balances, and payment gateways
• Experience testing Admin Panels / Back-office systems and understanding of RBAC
• Strong knowledge of Chrome DevTools: Network, Console, Application
• Basic SQL knowledge: SELECT, WHERE, JOIN
• Experience working with Jira, Confluence, and Test Management Systems (TMS)
• Ability to independently build a testing process without ready-made test cases
• Ability to work with incomplete or non-formalized requirements
• Understanding of client-server architecture
• Ability to independently localize issues and determine whether they are on the Front-end, Back-end, or Third-party API side

Nice to Have:

• Technical education or technical background
• Basic knowledge of JavaScript / TypeScript
• Experience testing payment systems or products with transactional logic
• Experience working with integrations and external APIs