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UniUni

Senior Staff Software Engineer

UniUni

Senior Staff Software Engineer at UniUni shaping software that optimizes e-commerce logistics systems and elevates technical standards in a dynamic environment.

Posted 4/28/2026full-timeRemote • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies
JavaScriptLaravelMicroservicesMongoDBMySQLPHPPostgresReactRedisSymfonyTypeScript

About the role

Key responsibilities & impact
  • Design, build, and maintain robust application software using PHP (core and frameworks) and TypeScript, with a focus on scalability and long-term maintainability.
  • Architect and implement full-stack solutions, seamlessly integrating server-side logic with frontend interfaces.
  • Lead troubleshooting and root-cause analysis of backend systems, identifying and resolving complex issues efficiently.
  • Design, build, and integrate RESTful APIs that support internal and external consumers.
  • Architect and manage relational and non-relational data storage solutions, ensuring performance, reliability, and data integrity.
  • Conduct comprehensive code reviews and drive continuous improvements to codebases for enhanced performance and maintainability.
  • Establish and enforce engineering best practices, coding standards, and documentation guidelines across the team.
  • Collaborate with product managers, designers, and cross-functional teams to deliver high-quality full-stack web applications.
  • Mentor and coach junior and mid-level engineers, fostering a culture of technical excellence and continuous learning.
  • Contribute to architectural decision-making and technology roadmap planning.

Requirements

What you’ll need
  • 10+ years of professional experience building production-grade applications, with strong backend expertise (PHP experience highly valued).
  • Deep expertise in one or more PHP frameworks: Laravel, Yii, or Symfony.
  • Strong proficiency in HTML, CSS, and JavaScript, with hands-on React experience.
  • Proven ability to design and manage relational (MySQL, PostgreSQL) and non-relational (MongoDB, Redis) databases, including schema design and query optimization.
  • Extensive experience with API design and integration (REST).
  • Expert-level knowledge of OOP principles, design patterns, and web architectural patterns (MVC, microservices, event-driven).
  • Track record of leading technical initiatives and delivering complex projects at scale.
  • Demonstrated ability to mentor engineers and elevate team-wide technical standards.
  • Strong communicator who can translate complex technical concepts for non-technical stakeholders.

Benefits

Comp & perks
  • Dental
  • Vision
  • Medical insurance
  • Paid Holiday
  • Paid Time Off
  • Paid Sick Leave
  • 401K
  • Management training program

ATS Keywords

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Hard Skills & Tools
PHPTypeScriptLaravelYiiSymfonyHTMLCSSJavaScriptReactRESTful APIs
Soft Skills
leadershipmentoringcommunicationcollaborationtroubleshootingroot-cause analysiscontinuous improvementtechnical excellenceproblem-solvingdocumentation