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Senior Staff Software Engineer

Remote, USA Full-time Posted 2026-06-13

What you'll do 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.

Qualifications

Technical Skills 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). Leadership & Collaboration 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.

Nice-to-Have

Qualifications Bachelor's degree or higher in Computer Science, Software Engineering, or a related field — or equivalent hands-on experience. Experience in logistics, supply chain, or e-commerce technology platforms. Familiarity with cloud infrastructure (AWS) and containerization (Docker, Kubernetes). Exposure to CI/CD pipelines and DevOps practices. Exceptional critical thinking and systems-level problem-solving skills.

Benefits

Competitive compensation package, Dental, Vision, Medical insurance, Paid Holiday, Paid Time Off, Paid Sick Leave, 401K, Management training program, etc Our Commitment to Inclusion UniUni is an equal opportunity employer. We believe diverse teams build better products, and we are committed to creating an inclusive environment where everyone can do their best work. We welcome candidates from all backgrounds — if you don't meet every requirement but believe you're a strong fit, we encourage you to apply. Apply To This Job

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