LoadUp · 9 hours ago
Senior Software Engineer
LoadUp is a fast-growing company offering modern pickup and assembly services through a tech-enabled platform. They are seeking a Senior Software Engineer with expertise in Ruby on Rails to scale their platform and contribute to architectural decisions while mentoring team members.
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Responsibilities
Design, build, and maintain scalable, high-performance web applications using Ruby on Rails
Lead technical design discussions and contribute to architectural decisions
Collaborate with Product, UX, and QA teams to deliver impactful product features
Build and maintain frontend functionality using React, Stimulus, Turbo, and TypeScript
Optimize client-side and server-side performance, including database queries, memory usage, and HTTP requests
Develop and maintain APIs, background jobs, and third-party integrations using GraphQL, Redis, and Sidekiq Pro
Mentor junior and mid-level engineers through thoughtful code reviews and technical guidance
Participate in agile development processes and adapt to evolving product requirements
Qualification
Required
5+ years of experience building web applications using Ruby on Rails
5+ years of experience working with SQL databases, ideally PostgreSQL or RDS
5+ years working within a product organization alongside Product Managers, QA, and UX teams
5+ years of frontend development experience using JavaScript and TypeScript
5+ years of experience building responsive web applications with HTML and CSS
3+ years of experience translating wireframes into clean, semantic, and performant UI
Strong understanding of performance optimization across frontend and backend systems
Experience with server-side rendered Rails views (HTML/ERB) and page-mounted React components
Ability to design scalable frontend architectures with attention to performance and memory management
Hands-on experience with cloud platforms such as Heroku, AWS, or Azure
Proficiency with Git and GitHub-based workflows
Strong communication skills and the ability to learn and adapt quickly
Experience mentoring engineers and supporting team growth
Proactive, strategic mindset with strong interpersonal skills
Comfortable working within agile product development teams
Preferred
Experience integrating with payment APIs such as Stripe, Ruby Pay, or Braintree
Leadership aspirations with a passion for mentoring and technical excellence
Experience scaling and operating production cloud-based systems
Bachelor's degree in Computer Science or equivalent practical experience preferred
Benefits
Comprehensive Health & Wellness Benefits – Medical, Dental, Vision, and Life Insurance.
Flexible Spending & Savings Options – FSA and HSA plans for personalized healthcare planning.
401(k) with 5% Company Match – Invest in your future with generous company support.
Employee Recognition Program – Be celebrated for your contributions.
Monthly Lifestyle Stipends – Support for essentials or extras that enhance daily life.
Referral Rewards Program – Get rewarded for helping us build a high-performing team.