Senior Backend Engineer — API Modernization (Symfony/Laravel)

DuskByte
Punjab

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Job details

Full-time

Qualifications

CI/CD
Laravel
Master's degree
SQL
PHP
Docker
PostgreSQL
Continuous integration
Redis
RabbitMQ
Back-end development
REST
APIs
Linux
GraphQL
MySQL
Design patterns

Full job description

Legacy Refactoring, API Design (REST/GraphQL), & Database Optimization.

Remote / Hybrid

Full-Time

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."

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