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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Symfony backend Senior developper - **Company:** CrowdStrike - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $84,000.0 - $115,000.0 - **Contract:** Permanent contract - **Skills:** PHP (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, ARM Architecture, Automation of Tests, Big Data, Static Program Analysis, Code Review, Databases, Continuous Integration, Cursor (Graphical User Interface Elements), Multi-Factor Authentication, Github, Machine Learning, MongoDB, Routing, OAuth, Payment Gateway, Query Optimization, Queueing Systems, RabbitMQ, Redis, Web Application Security, Symfony, Usage Analysis, Phpunit, Database Optimization, Software Security, State Machines, Caching, Indexer, Backend, Rate Limiting, Low Latency, Sentry, Vertica, Hubspot, Api Design, Restful APIs, Messenger, Doctrine (orm), Api Management, Docker - **Published:** July 30, 2026 - **Apply:** https://anyip.bamboohr.com/careers/34?source=BuiltInNationwide ## About the Role Technical Skills & Experience * Symfony expertise: 5+ years professionally with Symfony, including Security, Serializer, Validator, Messenger, and Workflow * API development: Strong experience with API Platform (or equivalent REST API frameworks) - custom operations, DTOs, filters, extensions * Document databases: Hands-on MongoDB + Doctrine ODM, including schema design, indexing, and query optimization for large datasets * Message queues: Production experience with RabbitMQ or similar brokers for async workloads * Performance: Ability to optimize PHP apps for throughput, memory, and latency * Security: Solid grasp of web security, JWT auth, and safe payment/callback handling * Quality: Comfortable with automated testing (PHPUnit), static analysis, and code review standards * AI-assisted development: Practical experience working with AI tools such as Cursor, Claude, or Cortex - writing effective prompts, reviewing AI-generated code critically, and integrating these tools into a productive engineering workflow Must-Have Knowledge * Symfony 7.x architecture, DI, event subscribers/listeners, and Messenger workers * API Platform custom operations, filters, and Doctrine extensions * MongoDB indexing strategies and aggregation/query optimization * RabbitMQ / Messenger patterns (routing, retries, failed messages, consumers) * Domain modeling for subscription/billing flows (state machines / workflows preferred) * PHP 8.x+ features and modern typing practices (readonly, enums, attributes) * JWT authentication and API authorization best practices * Docker-based local development and CI workflows Desirable Experience * ClickHouse or similar analytical databases * Redis (caching, rate limiting, clusters) * Subscription billing and payment gateway integrations (Paddle, crypto, etc.) * Product analytics / CRM integrations (PostHog, HubSpot, Intercom, Sentry) * Multi-factor authentication * Architecture fitness tools (PHPStan, PHPArkitect) and parallel test suites * OAuth2 / social login flows ## Description Lead backend development on a production Symfony stack: maintain and evolve API and domain layers, optimize high-traffic endpoints, implement async processing with RabbitMQ, manage subscription/billing workflows, integrate payment providers and analytics, strengthen API security, improve CI/CD and developer experience, and mentor the engineering team., We're looking for an experienced Senior Symfony Backend Developer to own and evolve our API and domain layer. You'll maintain and optimize an existing, complex codebase, ship new features and integrations, and help raise the bar on architecture, testing, and operational quality. You should be comfortable using AI coding tools as part of your daily workflow., * Lead backend development with Symfony 7.4, API Platform, and MongoDB (Doctrine ODM) * Design and implement API resources, custom operations, filters, and security rules * Optimize high-traffic endpoints and high-volume traffic/consumption processing * Evolve asynchronous processing with Symfony Messenger and RabbitMQ (workers, retries, routing) * Own subscription lifecycle logic (workflows, entitlements, plan changes, top-ups) * Integrate and maintain payment providers (e.g. Paddle, crypto gateways) * Develop and maintain data pipelines between MongoDB and ClickHouse for analytics * Strengthen API security (JWT, OAuth, authorization, rate limiting) * Improve CI/CD and developer experience with Docker and GitHub Actions * Use AI coding tools (Cursor, Claude, Codex, or similar) to accelerate delivery while keeping code reviewable and high quality * Lead code reviews and mentor teammates ## Related Videos - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Profiling Symfony & PHP apps with Blackfire](https://www.wearedevelopers.com/videos/265-profiling-symfony-php-apps-with-blackfire) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [Delay the AI Overlords: How OAuth and OpenFGA Can Keep Your AI Agents from Going Rogue](https://www.wearedevelopers.com/videos/1637-delay-the-ai-overlords-how-oauth-and-openfga-can-keep-your-ai-agents-from-going-rogue) ## Related Articles - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)