Sr. II Backend Engineer, Mobile API

Posted 2 Days Ago
Be an Early Applicant
San Mateo, CA, USA
Hybrid
176K-220K Annually
Senior level
Consumer Web • Digital Media • eCommerce
Slickdeals is a community of millions of real people working together to save.
The Role
Lead design and delivery of mobile-facing backend APIs and services, own initiatives end-to-end, improve reliability and performance, mentor engineers, collaborate with Mobile, Web, Product, Design, and Platform teams, and modernize legacy systems while supporting high-traffic iOS and Android applications.
Summary Generated by Built In

About Slickdeals:

We believe shopping should feel like winning. That’s why 10 million people come to Slickdeals to swap tips, upvote the best finds, and share the thrill of a great deal. Together, our community has saved more than $10 billion over the past 26 years.

We’re profitable, passionate, and in the middle of an exciting evolution—transforming from the internet’s most trusted deal forum into the go-to daily shopping destination. If you thrive in a fast-moving, creative environment where ideas turn into impact fast, you’ll fit right in.

The Purpose:

Slickdeals is seeking a well-rounded Senior II Backend Engineer to provide technical leadership and dedicated API support for our iOS and Android applications. This engineer will own complex backend initiatives, shape architectural direction, and collaborate with Mobile, Web, Product, Design, and Platform teams to deliver reliable, scalable consumer experiences.

The ideal candidate brings deep backend expertise, strong technical instincts, and the ability to modernize an existing codebase while working effectively within established patterns. You should be a quick learner with experience refactoring legacy systems and a solid understanding of A/B testing, analytics, and application performance optimization. Full-stack experience is a plus, enabling you to contribute across platforms when needed.

In this role, you will design and deliver services that power innovative mobile features, lead large-scale cross-functional initiatives, and mentor other engineers. The position is ideal for someone who enjoys balancing hands-on execution with broader technical leadership and wants to help shape the future of the Slickdeals mobile platform.

We continually explore technologies and approaches that can strengthen our products, architecture, and engineering practices. If you bring additional experience that could help us evolve our platform, we would love to hear from you.

What You'll Do:

  • Lead the design and delivery of complex APIs and backend services supporting iOS and Android applications.
  • Own backend initiatives from discovery and technical planning through implementation, rollout, and production support.
  • Partner with mobile engineers to define API contracts, dependencies, release strategies, and backward-compatibility requirements.
  • Influence backend architecture and establish patterns that can be reused across mobile products.
  • Identify technical risks early and present practical options and tradeoffs to engineering and product partners.
  • Improve the reliability, scalability, performance, security, and observability of mobile-facing services.
  • Lead technical design reviews and raise engineering standards through code reviews, testing strategies, and documentation.
  • Diagnose complex production issues that span mobile clients, APIs, data services, and infrastructure.
  • Reduce technical debt and simplify legacy systems while balancing near-term product delivery.
  • Contribute to cross-platform including web API development when business priorities require it.

Required Qualifications: 

  • Experience supporting large-scale consumer iOS and Android applications.
  • Extensive professional experience in backend software development, including strong experience with PHP and a modern PHP framework.
  • Proven experience designing and operating high-traffic RESTful or GraphQL APIs.
  • Deep understanding of API contracts, versioning, authentication, authorization, caching, pagination, idempotency, and error handling.
  • Strong experience optimizing the performance of APIs that integrate internal services and relational databases, including caching strategies, API monitoring, and RDBMS query optimization, particularly with MySQL or PostgreSQL.
  • Experience implementing secure authentication and authorization using JWT or similar token-based approaches.
  • Experience with distributed systems and asynchronous processing technologies such as RabbitMQ, Valkey, Redis, Kafka, or other queue- and event-driven architectures.
  • Experience integrating mobile push notifications through Firebase Cloud Messaging and APNs.
  • Experience creating comprehensive unit, integration, contract, and API testing strategies 
  • Experience with cloud platforms, containers, Docker, Kubernetes, CI/CD pipelines, and modern deployment practices, including GitHub Actions.
  • Strong production experience with monitoring, logging, alerting, incident response, and root-cause analysis.
  • Experience with feature flags, experimentation platforms, analytics tracking, and A/B testing.
  • Demonstrated ability to lead projects across teams without relying on formal authority.
  • Strong written and verbal communication skills, including the ability to explain technical tradeoffs to non-engineering partners.

Preferred qualifications:

  • Strong understanding of mobile-specific constraints, including unreliable networks, latency, app-version fragmentation, backward compatibility, and phased releases.
  • Full-stack experience with Vue and TypeScript and a modern frontend framework.
  • Experience modernizing legacy services or decomposing monolithic applications.
  • Experience influencing engineering practices across teams.

What distinguishes the Senior II level:

  • Owns ambiguous, high-impact technical problems spanning multiple teams or systems.
  • Defines technical direction instead of focusing only on assigned implementation.
  • Anticipates dependencies and risks before they affect delivery.
  • Creates reusable solutions and raises engineering standards beyond an individual project.
  • Influences architecture and execution across Mobile, Backend, Web, and Platform teams.
  • Develops other engineers through technical guidance, and knowledge sharing.

Success in this role:

  • Mobile initiatives receive consistent backend leadership from discovery through release.
  • API requirements and dependencies are identified early, reducing delivery delays.
  • Mobile-facing services become more reliable, scalable, observable, and maintainable.
  • Mobile and backend teams operate with clearer ownership and fewer coordination gaps.
  • Architectural improvements create measurable benefits across multiple projects and teams. 
LOCATION: San Mateo, CA 
Hybrid schedule visiting our San Mateo office three days a week (Tues-Thurs).
 
Slickdeals Compensation, Benefits, Perks:
 
The expected base pay for this role is between $176,000 - $220,000. Pay is based on a number of factors including market location and may vary depending on job-related knowledge, skills, and experience. Exact compensation will be discussed during the interview process and tailored to the candidate's qualifications. 
  • Competitive base salary, annual bonus, and equity package
  • Competitive paid time off in addition to holiday time off
  • A variety of healthcare insurance plans to give you the best care for your needs
  • 401K matching above the industry standard
  • Professional Development Reimbursement Program

Work Authorization
Candidates must be eligible to work in the United States.
Slickdeals is an Equal Opportunity Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender (including pregnancy, childbirth, or related medical conditions), national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other protected status. Slickdeals will consider qualified applicants with criminal histories consistent with the "Ban the Box" legislation. We may access publicly available information as part of your application.

Slickdeals participates in E-Verify. For more information, please refer to E-Verify Participation and Right to Work.

Slickdeals does not accept unsolicited resumes from agencies and is not responsible for related fees.

Skills Required

  • Experience supporting large-scale consumer iOS and Android applications.
  • Extensive backend development experience with PHP and a modern PHP framework.
  • Proven experience designing and operating high-traffic RESTful or GraphQL APIs.
  • Deep understanding of API contracts, versioning, authentication, authorization, caching, pagination, idempotency, and error handling.
  • Experience optimizing API performance integrating internal services and relational databases, including caching and RDBMS query optimization (MySQL or PostgreSQL).
  • Experience implementing secure authentication and authorization using JWT or similar token-based approaches.
  • Experience with distributed systems and asynchronous processing technologies (RabbitMQ, Valkey, Redis, Kafka, or similar).
  • Experience integrating mobile push notifications via Firebase Cloud Messaging and APNs.
  • Experience creating comprehensive unit, integration, contract, and API testing strategies.
  • Experience with cloud platforms, containers, Docker, Kubernetes, CI/CD pipelines, and modern deployment practices (including GitHub Actions).
  • Strong production experience with monitoring, logging, alerting, incident response, and root-cause analysis.
  • Experience with feature flags, experimentation platforms, analytics tracking, and A/B testing.
  • Demonstrated ability to lead cross-team projects and communicate technical tradeoffs to non-engineering partners.
  • Strong written and verbal communication skills.
  • Understanding of mobile-specific constraints (unreliable networks, latency, app-version fragmentation)
  • Full-stack experience with Vue and TypeScript and a modern frontend framework.
  • Experience modernizing legacy services or decomposing monolithic applications.
  • Experience influencing engineering practices across teams.

Slickdeals Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Slickdeals and has not been reviewed or approved by Slickdeals.

  • Healthcare Strength Healthcare is described as platinum-level across medical, dental, and vision, with consistently strong sentiment on plan quality. This points to robust core coverage and positive experiences using it.
  • Retirement Support Retirement offerings include a 401(k) with a match described as above industry standard, with long-term wealth components like company equity highlighted alongside the match. Together these elements present solid long-horizon financial support.
  • Wellbeing & Lifestyle Benefits Workstyle and lifestyle perks emphasize hybrid flexibility, flexible schedules, commuter support, wellness programs, pet-friendly offices, and office amenities. Development-oriented perks like tuition reimbursement and conferences complement the day-to-day benefits.

Slickdeals Insights

Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: San Mateo, CA
156 Employees
Year Founded: 1999

What We Do

Slickdeals is a community of millions of real people working together to save, so consumers can be confident they’re getting the best deal. Twelve million shoppers help other shoppers by vetting and voting up the very best products at the best prices from all the top retailers. Through the power of human intelligence, the community at Slickdeals has saved its savvy shoppers $10 billion. Slickdeals is one of the top ten most visited shopping sites in the U.S. per Similarweb.

Why Work With Us

We're leveling up across the board and that gets a venture where you have startup like themes of hustle, opportunity, and growth potential, while also having benefits of a 21 year old organization like resources, learnings, and data against which to make decisions.

Gallery

Gallery

Similar Jobs

Easy Apply
Remote or Hybrid
USA
208 Employees
16K-200K Annually

True Anomaly Logo True Anomaly

Director, People Business Partners

Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
In-Office
Long Beach, CA, USA
300 Employees
175K-285K Annually

Relativity Space Logo Relativity Space

Staff Global Supply Manager, Machining

Aerospace • Hardware • Robotics • Software • Manufacturing
Easy Apply
In-Office
Long Beach, CA, USA
2200 Employees
141K-211K Annually

Relativity Space Logo Relativity Space

Senior Global Supply Manager, Machining

Aerospace • Hardware • Robotics • Software • Manufacturing
Easy Apply
In-Office
Long Beach, CA, USA
2200 Employees
118K-178K Annually

Similar Companies Hiring

PRIMA Thumbnail
Travel • Software • Marketing Tech • Hospitality • eCommerce
US
15 Employees
Scotch Thumbnail
Artificial Intelligence • eCommerce • Fintech • Payments • Retail • Software • Analytics
US
35 Employees
Golden Pet Brands Thumbnail
Digital Media • eCommerce • Information Technology • Marketing Tech • Pet • Retail • Social Media
El Segundo, California
178 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account