[Remote] Senior Software Engineer – Full-Stack

Note: The job is a remote job and is open to candidates in USA. VWO is seeking a Senior Software Engineer to join its engineering team and build, maintain, and evolve reliable, scalable software products. This backend-heavy full-stack role focuses on PHP backend systems, APIs, databases, cloud infrastructure, frontend contributions, production troubleshooting, and end-to-end technical ownership.

Responsibilities

• Design, develop, and maintain scalable, reliable, and maintainable backend services and APIs, primarily using PHP
• Build and enhance services and integrations using Node.js where appropriate
• Work with relational databases and SQL, including schema design, query optimization, indexing, and troubleshooting database performance issues
• Design and implement effective caching strategies using Redis for performance, scalability, and distributed application requirements
• Work with event-driven and asynchronous architectures, including queues, background jobs, event processing, and related failure-handling patterns
• Contribute to frontend development when required, working across the stack to deliver complete product functionality
• Investigate and resolve complex production issues, including application, database, infrastructure, performance, and integration-related problems
• Analyze logs, traces, metrics, and application behavior to identify root causes, rather than relying only on surface-level fixes
• Design solutions that consider performance, scalability, reliability, security, and maintainability
• Work with AWS services and cloud infrastructure to deploy, operate, and troubleshoot applications
• Write clean, testable, well-structured code and contribute to improving engineering standards and development practices
• Participate in code reviews, technical discussions, design reviews, and architectural decisions
• Automate repetitive engineering and operational tasks wherever possible
• Work closely with Product, QA, Support, and other engineering teams to understand requirements and solve customer-impacting problems
• Take ownership of features and technical problems end-to-end, from understanding the problem to implementation, deployment, monitoring, and resolution
• Stay current with modern technologies, development practices, and AI-powered engineering tools, and identify opportunities to use them effectively

Skills

• 3+ years of professional software engineering experience with strong hands-on production experience
• Strong hands-on experience with PHP and backend development
• Good practical experience with Node.js and building backend services/APIs
• Strong understanding of SQL and relational databases, including query optimization, indexing, and database design fundamentals
• Hands-on experience with Redis, including caching and/or other key-value use cases
• Understanding of event-driven and asynchronous architectures, such as queues, workers, background processing, and event-based communication
• Basic working knowledge of AWS and cloud fundamentals, including concepts such as compute, storage, networking, and managed services
• Strong debugging, troubleshooting, and root-cause analysis skills
• Good understanding of REST APIs, HTTP, authentication, and common backend architecture patterns
• Ability to work effectively with an existing codebase, understand unfamiliar systems quickly, and make safe changes in production environments
• Strong ownership and problem-solving skills, with the ability to independently drive technical problems to resolution
• Good understanding of software engineering fundamentals, including data structures, algorithms, design principles, testing, version control, and code quality
• Experience with Docker and containerized application development
• Basic understanding of Kubernetes and container orchestration
• Experience working with cron jobs, scheduled processes, background workers, and batch jobs
• Familiarity with monitoring, logging, alerting, tracing, and application observability tools
• Experience with CI/CD pipelines and deployment automation
• Experience with message brokers or event-streaming technologies such as Kafka, RabbitMQ, SQS, or similar systems
• Experience with AWS services such as ECS/EKS, Lambda, SQS, S3, RDS, CloudWatch, or Kinesis
• Experience with frontend technologies such as JavaScript/TypeScript, React, or similar frameworks
• Experience with performance optimization and debugging high-volume or distributed systems
• Experience building automation tools, scripts, or internal developer tooling
• Familiarity with AI-assisted software development tools such as coding agents, AI-powered IDEs, code generation/review tools, or LLM-based developer workflows
• Experience working in a SaaS, product engineering, or high-scale environment

Company Overview