Senior Software Engineer - Digital Job at Five Below, In.c, Philadelphia, PA

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  • Five Below, In.c
  • Philadelphia, PA

Job Description

Salary: $75,000 - 103,000 per year Requirements:

  • 7-10+ years of experience in full-stack development, with significant hands-on work on both frontend and backend
  • Proficient in Spring Boot services on AWS, with proven track record in designing and building backend microservices
  • Expertise in frontend frameworks (React, Next.js, or similar), and deploying with Netlify or equivalent static setups
  • Solid understanding of MACH and headless commerce architectures, with experience integrating with Commercetools or alike
  • Hands-on experience in performance/load testing, monitoring, and troubleshooting in production environments
  • Knowledgeable in API design and versioning, service reliability, data persistence, caching, and error management
  • Familiar with CI/CD tools, setting up test environments, version control, and automation in deployment
  • Strong emphasis on code quality practices, including tests and code reviews for maintainable architecture
  • Excellent mentorship and leadership skills; capable of contributing to architectural decisions and managing features end-to-end
  • Strong communication capabilities to articulate trade-offs and collaborate effectively across teams
  • Retail and Ecommerce experience is essential
  • High level of integrity, professionalism, and the ability to handle confidential matters with sound judgment
  • Highly self-motivated and proactive
  • Ability to support both onshore and offshore teams
Responsibilities:
  • Design and architect full-stack features, encompassing both UI/UX frontend and backend microservices
  • Document, version, and evolve APIs while ensuring backward compatibility for seamless integrations with the commerce platform
  • Enhance front-end performance, focusing on build times, bundle sizes, SEO readiness, and mobile-responsive user experiences
  • Create scalable backend services on AWS, including data modeling, caching, scaling, fault tolerance, and observability
  • Oversee and enhance CI/CD pipelines, deployment processes, versioning, and testing environments
  • Implement comprehensive monitoring, logging, tracing, and alerting across the stack, and conduct performance/load testing to identify and rectify bottlenecks
  • Maintain high code quality through unit, integration, and end-to-end tests; ensure robust test coverage and conduct code reviews
  • Address technical debt while advocating for clean, maintainable, and scalable architecture
  • Mentor junior and mid-level developers; lead discussions around design and architecture, and contribute to strategic roadmaps
  • Work closely with Product, UX, QA, DevOps, and other stakeholders to deliver features aligned with business objectives
  • Uphold security practices, including securing APIs, protecting data, and ensuring compliance where necessary
Technologies:
  • API
  • AWS
  • Architect
  • Backend
  • CI/CD
  • DevOps
  • Frontend
  • Support
  • Mobile
  • React
  • Security
  • Spring
  • Spring Boot
  • microservices
  • UX UI Design
  • Cloud
  • Zendesk

More:

At Five Below, we are driven by our purpose: to create an environment where fun and excitement flourish. With over 20,000 dedicated associates, we cultivate a culture that inspires creativity, energy, and passion. Our engineering team is crucial in developing innovative systems that support our retail footprint. We offer various benefits, including health coverage, financial and personal wellness programs, making Five Below an exceptional place to grow your career. Join us in our commitment to providing an amazing experience, packed with endless possibilities.

last updated 12 week of 2026

Job Tags

Full time

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