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Senior Software Engineer
Greenville, South Carolina
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Applied on March 3, 2021
Job Id #44740 Posted December 14, 2020


  • These roles will focus on continuing the evolution of the API Security, Certification and automation platform, Stargate. Stargate provides centralized, self-service API gateway for applications as well as cataloging and quality assurance tools.
  • Immediate efforts for the project focus on tracking and managing APIs provide by applications hosted on public cloud providers.


  • API Gateway to develop certification and self-service automation to extend tracking and control of APIs deployed on premises and public cloud. Integrate preferred on premises API gateway with PEP automation platform, PRM.


  • Proficient in several modern programming languages (Python/Java/C++/LUA)
  • Experience with the an API gateway
  • Experience running containerized workloads
  • Experience with DevOps, Continuous Integration, and Continuous Delivery


  • 1 year experience: API Gateways; Nginx/OpenResty/Kong or equivalent
  • 2 years experience: Java
  • 2 years experience: Familiar with container platforms (docker)
  • 2 years experience: CI/CD - Jenkins, Ansible

Experience will set candidates apart from one another:

  • Direct support of an API Gateway.
  • Experience both with networking hardware and software development
  • Security background


  • 8-12 Engineers 1 Engineering Manager.

Primary Responsibilities:

  • Design, modify, develop, write and implement software programming applications in support of the API Gateway.
  • Participate in the testing process through test review and analysis, and skilled in Agile development methodologies, including unit testing and continuous integration.
  • Working on an Agile team, participating in Scrum ceremonies and working as a team to fix bugs and work on new features for Kong API Gateway and supporting applications.
  • Customer interaction providing support for Gateway issues by reading Splunk logs and troubleshooting the network stack.
  • Developing Plugins and features into Kong API Gateway product and contributing back to open source.
  • Enhancing monitoring/alerting of application using Splunk and Grafana/Prometheus.
  • Troubleshooting of network issues using Splunk and working with other teams such as Firewall, F5, and private cloud teams.
  • Part of an on-call support rotation to handle support issues working with application teams to troubleshoot and fix issues.
  • Responsible for large and more complex components, while influencing overall product architecture and patterns.
  • Influences the team designs and solutions. Mentors software engineers through code reviews, and hands on design sessions.

Required Qualifications:

  • Undergraduate degree or equivalent experience in Software Engineering
  • 2+ year in platform engineering
  • 2+ year software development or engineering
  • Experience in full software lifecycle activities
  • Experience with Agile methodology
  • Experience operationalizing larger products

Preferred Qualifications:

  • OSI L4 and L7 networking knowledge, TCP/IP, TLS, IP/DNS
  • Kong/OpenResty API Gateway
  • Java/Python/LUA development
  • Identifies solutions to non-standard requests and problems
  • Solves complex problems and/or conducts complex analyses
  • Works with minimal guidance; seeks guidance on only the most complex tasks
  • Experience with Cassandra, Splunk, Prometheus, Grafana
  • Experience working in agile environment
  • CI/CD leveraging Github/Docker/Jenkins
  • Direct API Gateway knowledge including Nginx, OpenResty/Kong
  • System Reliability Engineering practices
  • Familiar with HTTP and REST API best practices
  • Administration of Cassandra


  • a. How many rounds? 2 with the second one being the longest (1st manager screen, 2nd panel interview)
  • b. Video vs. phone? Video

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.

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Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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