Senior Backend Engineer — API Modernization (Symfony/Laravel)
Legacy Refactoring, API Design (REST/GraphQL), & Database Optimization.
The Mission
In the world of Enterprise SaaS, the Backend is where the battle for stability is won or lost. At DuskByte, we specialize in taking 10-year-old PHP monoliths and transforming them into high-performance, modular engines. As a Senior Backend Engineer, you will use your decade of experience to decouple "spaghetti" code, modernize database schemas, and build the APIs that power the next generation of our clients' platforms.
What You Will Do (The Role)
Monolith Decoupling
Lead the strategic refactoring of massive Symfony or Laravel applications into clean, service-oriented architectures.
API Modernization
Design and implement robust, versioned RESTful or GraphQL APIs to replace aging, undocumented internal endpoints.
Database Hardening
Audit and optimize complex SQL (PostgreSQL/MySQL) environments, fixing N+1 queries, poor indexing, and data integrity issues.
The "Strangler" Strategy
Build the middleware and "wrappers" necessary to transition legacy business logic to modern services without breaking front-end functionality.
Performance Engineering
Implement advanced caching strategies (Redis/Memcached) and asynchronous processing (RabbitMQ/SQS) to stabilize high-traffic B2B platforms.
The Modernization Tech Stack
You are a master of the PHP ecosystem and its infrastructure
The Frameworks
Deep, expert-level knowledge of Symfony (5.x/6.x) and Laravel (9.x/10.x/11.x).
The Language
Mastery of modern PHP 8.x features (Attributes, JIT, Fiber) and how to upgrade legacy 5.x/7.x codebases safely.
The Data
Expert SQL optimization and experience with ORMs (Eloquent/Doctrine) vs. raw, high-performance queries.
The Architecture
Strong grasp of Design Patterns (Solid, Repository, Factory) and Domain-Driven Design (DDD).
The Infrastructure
Comfort with Docker, Linux environments, and CI/CD pipelines.
Who You Are (Requirements)
10+ Years of Experience
You've lived through the evolution of the web. You know why certain architectural decisions were made in 2014 and why they need to change in 2026.
The "Spaghetti" Specialist
You don't get frustrated by messy code; you see it as a puzzle. You have the patience and discipline to refactor safely.
Documentation-First
You believe that an API is only as good as its documentation (Swagger/OpenAPI).
Mentor Mindset
You enjoy sharing your "Battle Scars" with mid-level engineers to help them avoid the mistakes of the past.
Why This Role is Critical at Duskbyte
You are the "Foundation Specialist." While others focus on the cloud or the UI, you ensure the core business logic is indestructible. You are the one who turns a "Slow, Buggy Legacy App" into a "Fast, Reliable Enterprise Engine."