Join Our Team

We are always looking to add to our talented team of knowledgeable experts to help us design, develop, manufacture, sell and support our portfolio of high quality products and services.

ESI is an equal opportunity employer. Please no recruiters!

Cloud Support Rep Lower


Why Work With ESI

    • Competitive Salaries
    • Vacation
      • Year 1 of ESI Employment - 2 weeks of vacation
      • Year 5 of ESI Employment - 3 weeks of vacation
      • Year 10 of ESI Employment - 4 weeks of vacation
      • Year 10+ of ESI Employment - Additional weeks of vacation per every 5 years of employment
    • Matched 401K Plan 
      • Many mutual funds currently available 
      • Employees can contribute up to 90% of their salary with an ESI match of 25 cents on the dollar (up to 6%)
    • We encourage employee growth through employee and family education (Education Assistance Program) 
      • ESI will reimburse employees for education expenses (based on academic performance) relating to the employee’s position or toward a degree plan
    • We enjoy fit, friendly and fun work and life styles (Excellent Benefits)
      • Medical, Dental, and Vision benefits for employees and their family members
      • Large incentives to employees for healthy lifestyles with large discounts on insurance premiums for employee wellness
    • We practice "Success with Significance" (Community Volunteering)
      • ESI participates in various charitable programs throughout the year.
      • Employees receive time off each year for volunteering with a charity of their choice.
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Available Positions

DevOps Engineer

Plano, TX

ESI is seeking a hands-on DevOps Engineer who will lead the way for our DevOps environment. The ideal engineer will bring their experiences, best practices, and a collaborative attitude to help drive DevOps initiatives. As a DevOps Engineer. You’ll be focused on continuous integration and delivery in Amazon Web Services (AWS) as we build and scale our online applications.

Key Responsibilities
  • Work directly with the development team to assist with continuous integrations and deployments
  • Build and set up new development tools and infrastructure
  • Work on ways to automate and improve deployment and release processes
  • Ensure that systems are safe and secure against cybersecurity threats
  • Identify technical problems and develop software updates and ‘fixes’
  • Work with software developers and engineers to ensure that the deployment follows established processes and works as intended
  • Contribute to planning out projects and being involved in project management decisions.
Job Requirements
  • Contribute to planning out projects and being involved in project management decisions.
  • Knowledge and experience with Networking concepts and systems
  • Knowledgeable understanding of the CI/CD Process, experience with the following CI/CD tools
  • Experience with development tools such as
  • Teamcity
  • Kubernetes
  • Docker
  • Experience with NoSql database management
  • Experience with REST APIs
  • Excellent troubleshooting skills on handling service failures
  • Experience as Linux System Admin and features such as
  • Firewalls, NAT configurations, Port settings, Subnetting, VPCs, VPNs
Preferred Requirements (not required)
  • Experience with Monitoring tools such as
  • DataDog
  • CloudWatch
  • Sentry
  • Experience with Javascript and frameworks such as NodeJS and/or ReactJS
  • Work remotely
  • PTO
  • Healthcare coverage
  • 401k

Business Development Representative (Telemarketer)

Department: Sales

We are looking for dynamic sales representatives that are focused on sourcing new prospective customers through telemarketing and email campaign activities, with the objective of qualifying the opportunity and scheduling a demo. We are confident that we have the services and solutions to significantly save future customers on the cost of their communication solutions and bring them to speed on the latest technology. We are searching for energetic and focused representatives who are looking to advance and grow in their sales career. ESI is invested in helping our sales team achieve success with the opportunity for promotion and to earn significant compensation benefits.


  • Ability to quickly gain an understanding of industry and products through company offered training programs
  • Become an expert on the ESI product line and be able to translate that knowledge to the customer through application identification and feature/benefit analysis
  • Successfully representing ESI and presenting product differentiators over the phone
  • Understand the business requirements of prospective prospects and adjust your pitch accordingly
  • Must be able to follow scripts and deal with objections in a persuasive yet professional manner
  • Must be able to show the customer potential ROI savings
  • Make outbound calls for a minimum of 6 hours per day
  • Make 70 to 90 outbound calls a day with the intention of qualifying the lead (prospect) and scheduling a demo
  • Generate a sales funnel leveraging marketing generated leads as well as self-sourced
  • Work with existing partners to ensure qualified opportunities are worked to completion
  • Must track all sales activities through internal CRM
  • Achieve sales objectives – consistently hit quota
  • Create/enter error-free quotes and orders
  • Facilitate interdepartmental communications to resolve issues as needed
  • Understand and be able to use all internal software tools such as Word, Excel, Slack, Odoo, etc.
  • Must be extremely organized and work well under pressure
  • Maintain technical knowledge by attending educational sessions and reviewing product/services documentation

Physical Requirements

  • Good command of the English language
  • Understandable telephone speaking voice
  • Ability to utilize a telephone and computer
  • Capable of being on the phone 6 plus hours a day

Successful Candidates must have the following characteristics

  • Minimum high school diploma -degree preferred
  • 2 years outbound sales experience required
  • Excellent outbound calling skills – ability to consistently drive and control the call
  • Excellent communication, presentation, and negotiation skills
  • Ability to handle and overcome objections
  • Ability to work well individually and/or in a team environment
  • Self-motivated
  • Goal-oriented/driven
  • Work well in a fast-paced environment
  • Enthusiastic/positive/upbeat personality
  • Persuasive and Persistent
  • Outstanding work ethic
  • Solution-oriented
  • The desire to learn, grow and develop personally and professionally
  • Good written and verbal skills
  • Working knowledge of business computer software

Product Manager for eSIP PBX Series

Plano, TX

ESI is on the search for an energetic, creative and diligent individual as the Product Owner and Champion of our eSIP Evolution and Titan pbx series products. The eSIP product line has been an exciting addition to ESI’s product portfolio. It has many more successes to come. Are you the person to join our team, working with all departments of the company and our partners, to push ESI eSIP even higher? If so, we want to hear from you.

Key Responsibilities

  • Manage, apply and deploy fixes and new features in the product
  • Work closely with various departments, primarily
    • Engineering - prioritize issues and features, drive platform stability, coordinate software and hardware releases
    • Inside Sales & External Partners- communicate via webinars, documentation, and video recordings regarding new features and important improvements
    • Internal Support - same objectives as sales with the addition of troubleshooting and best practices support
  • Report to Senior Management on product health and provide guidance on where we go next [with the product]
  • Leadership! - you are the leader and, using the resources around you, push us further

Desired Skills/Experience

  • Proven experience deploying highly visible products with multiple integration points
  • Analytical approach to problem solving with a focus on efficient and timely solutions
  • Experience negotiating technical scope and dependencies
  • Ability to clearly articulate product requirements and prioritize enhancement requests
  • Knowledge of Asterisk-based PBX, API, and UC Communications strongly preferred
  • Experience with Mobile App development (Android and iOS) a huge plus
  • Experience in project management methodologies (i.e., Agile) and tools (i.e. JIRA) preferred.
  • Excellent verbal and written communication skills

National Accounts Sales Representative

Plano, TX

This position acts as the lead representative focused on developing national accounts within the US. The National Accounts Rep will be responsible for prospecting, face to face presentations, virtual demonstrations, demoing, selling, and nurturing the relationship thereafter. The goal is to sell and leverage ESI’s complete portfolio of Cloud services. This position requires an aggressive, persistent, professional, intelligent, self-motivated individual that is focused on helping potential national accounts create the best communication solution for their business.


  • Provide a professional and comprehensive presentation of ESI’s portfolio of products
  • Understand the business requirements of prospective customers and develop a solution that fits those needs
  • Build and maintain a sales funnel of prospective national accounts within a CRM solution
  • Generate a sales funnel leveraging existing resellers accounts as well as self-sourced and referrals
  • Strategic and aggressive cold calling with the goal of having a deep sales funnel at all times
  • Average 75 cold calls per day
  • The National Accounts Rep is expected to hit quota every quarter
  • Excellence in customer service and building strategic customer relationships
  • Facilitate inter-departmental communication to ensure happy customers, successful deployments, and resolve customer issues as needed
  • Ability to quickly gain an understanding of industry and products through company offered training programs
  • Must be able to aggressively and successfully prospect through all social media outlets
Skills & Requirements
  • Must have a minimum of 5 years’ worth of telecom experience, selling Cloud/VoIP services
  • A high-energy, proactive, dynamic personality with a sense of urgency, and a strong work ethic
  • Demonstrated success as top sales performer/ hunter, consistently meeting or exceeding sales targets
  • Proven ability to develop business relationships with “C” level or business owner decision makers
  • Demonstrate the ability to source, generate, and acquire new sales opportunities
  • Excellent communication, presentation, closing and negotiation skills is a must
  • Enjoy working in a fast-paced, high energy sales environment
  • Ability to learn complex technical products and solutions and identify how these products and services align with a customer’s needs
  • Must be knowledgeable of MS Office (Excel, Outlook, Word, PowerPoint)

SIP PBX Technician

Plano, TX

The SIP PBX Technician position is a designated product and services support specialist in the Customer Services organization. The key role of the Customer Services organization is to field Reseller product or services inquiries which include trouble reporting and issue isolation/identification and correction. Specifically, the role of the SIP PBX Technician is to provide first line technical support to internal and external customers.

Key Responsibilities

  • Provide first responder Technical Support in the Customer Support Center
    • Receive, analyze and address inquiries (Phone or Electronic) directed to the Customer Support Center.
    • Log and update customer interactions in the Kayako Ticket System.
    • Troubleshoot, diagnose and resolve customers issues related to ESI Services or Systems
    • Expedite customer complaints (Phone or Electronic)as necessary to the appropriate parties for escalation or resolution.
    • Document and report any System Software or Hardware defect through appropriate channels.
    • Monitor and update esiAcademy Forum as assigned.


  • Provide high quality assistance to ESI dealers requiring assistance with ESI products and promoting customer satisfaction with ESI products and services.
  • Answer inbound calls and assist them with operational questions, system programming, as well as troubleshooting failures on ESI equipment.
  • Escalate potential problem sites to management as required for resolution
  • Generate advance replacement return authorizations (RAs), in accordance with established ESI Policies and Procedures, as needed for equipment hardware failures in the field.
  • Follow up daily with ESI customers on unresolved site issues.
  • Input all daily calls received into the database.
  • Any duties that may be prescribed by management from time to time.

Additional Requirements

  • Ability to review Wireshark packet captures
  • Knowledge and ability to read/follow SIP setup messaging
  • Previous IP PBX experience, myPPX , Digium, Altigen, Asterisk
  • Must have excellent written, verbal, and interpersonal skills in interfacing with all departments.
  • Previous customer service experience, with a portion of this time supporting telephony (phone systems) , networks and/or services
  • Excellent verbal and interpersonal skills for interfacing with Resellers. Fluent in English.
  • Ability to sit at a workstation and computer keyboard for long periods of time and use the telephone extensively.
  • Have a good attitude with willingness and flexibility.

Implementation Technician

Plano, TX

The Implementation Technician position is a designated product and services specialist in the Customer Services organization. Our Implementation Technician will stay up to date on specific products, services, tech updates, and more.


ESI Hosted Services


  • Demonstrate technical leadership with incident handling and troubleshooting
  • Execute end-to-end new customer deployment, including: 
    • CPE Data Switch and router configuration
    • Hosted turn-up and deployment
    • Voice and data routing adjustments 
    • Gathering appropriate information to provision customer Domain’s
  • Identify, diagnose, and resolve complex problems with the voice and data infrastructure as the new deployment occurs
  • Create and maintain comprehensive documentation for all implemented solution 
  • Provide pre-sales and post-sales technical support 
  • impact and maximizing the productivity of company resources
  • Obtain and maintain required certifications for partnership with key vendors
  • Update job knowledge by participating in educational opportunities; reading professional publications; maintaining personal networks; participating in a professional organization
  • Other duties as directed by Management


  • Associate degree in Computer Science or Equivalent experience
  • Current CCNA certification or equivalent 
  • Hands-on experience implementing, administrating network devices, setting and maintaining policies and rights/security within a service provider environment
    • Firewalls
    • Cisco and Juniper network switches 
    • Cisco and Juniper routers 
    • HP, Dell server platforms 
    • Linux and FreeBSD expertise 
    • Previous responsibility for providing customer support
  • Demonstrable level of competence including: 
    • A understanding of the OSI network model, Ethernet, and TCP/IP networking
    • Intermediary knowledge on IP routing protocols like BGP, OSPF and IS-IS
    • Working knowledge of common network monitoring and security utilities
  • Ability to learn very specialize systems in a short period of time
  • Passion for voice communication products & services.
  • Excellent communication and interpersonal skills 
  • Excellent customer presentation skills
  • Strong oral and written communication skills.
  • Minimum of 2 years supporting VoIP infrastructure
  • Minimum of 4 years working in a Service Provider environment 
  • Must be willing to work on non-standard shifts
  • CCNP Desired

Region Sales Representative

Plano, TX

Manage the premium accounts within the assigned territory through initiated sales activity.


  • Manage the premium accounts within the assigned territory through initiated sales activity
  • Improve ESI’s share of telecom spend from multi-vendor resellers
  • Increase quarter-over-quarter results from premium resellers in regards to CPE revenue, SIP trunks, and Cloud PBX seats 
  • Achieve the Region’s assigned sales objectives – improve revenue production year over year
  • Recruit new partners in targeted markets – take the lead with inside sales to ensure continual prospecting and lead generation is being completed. Have a continual pipeline of prospects.
  • Serve as face-to-face contact for premium reseller site visits
  • Interface with ESI partners to determine and secure ESI product sales commitments
  • Pre-plan sales call/agenda prior to every field visit
  • Set ESI sales volume level expectations with partners
  • Frequently and consistently engage in end user contacts with sales reps -to help close deals
  • Engage partners sales teams to ensure ESI products are top of mind in their daily sales activities
  • Focus on application selling and ESI’s specific competitive strengths – proactively provide competitive data to resellers
  • Communicate current ESI marketing programs, drive and track their utilization to the appropriate level in the organization
  • Communicate all other pertinent information regarding ESI, its products, pricing and policies
  • Train owners, technicians and sales people to understand the ESI products, how they operate, their features and applications. This includes conducting training and product/application discussion roundtables, frequently
  • Determine volume of outstanding ESI sales opportunities and drive growth (sales funnel) 
  • Develop and implement account and territory management strategies and tactics for their region
  • Take the lead with the inside sales rep as to any performance gaps or other issues which need to be addressed 
  • Be an expert on the entire ESI product line including the 900, Comm Servers, SIP Trunks, Cloud PBX, operation of the ESI demo kit and you must be able to translate that knowledge to the ESI partner through application identification, feature operation description and feature/benefit analysis
  • Stay technically competent on all future ESI technologies
  • Facilitate interdepartmental communications to resolve reseller issues as needed

Physical Requirements

  • Good command of the English language and an understandable in-person and telephone speaking voice
  • Professional demeanor and appearance
  • Ability to travel by airplane and automobile up to 4 days per week

Additional Requirements

  • Minimum high school education or equivalent
  • Must have a minimum of four years experience in Telecom
  • Good written and verbal skills
  • Expert knowledge of the sales process/ proven closer
  • Excellent prospecting skills
  • Good face-to-face negotiation skills
  • Excellent organizational skills
  • Powerful motivator
  • Working knowledge of computer software, i.e. Outlook, Excel, Word, ACT, Power Point, file creation/management and internet navigation

Strategic Sales Specialist

Plano, Texas

ESI is looking for a Strategic Sales Specialist who must be an aggressive- (proven) hunter/closer. Self-motivated and driven to obtain goals/quota. A never-give-up mentality with the drive to seek client acquisition opportunities. If this sounds like you, we would like to talk to you!


  • Must be an aggressive- (proven) hunter/closer
  • Self-motivated and driven to obtain goals/quota
  • Recruit resellers/partners to join ESI and sell our products
  • Must be skilled at contact planning, prospect identification, and closing
    • Determine the prospects potential through fact-finding
    • Follow ESI’ guidelines for getting the partner signed up
    • Drive revenues to hit quota
    • Track all activities thoroughly
  • Skilled at successfully representing ESI over the phone
  • Educate resellers/partners on the benefits of selling ESI and our differentiators
  • Teach resellers/partners best practices in all situations
  • Achieve assigned sales objectives (Quota)
  • Serve as primary contact for resellers/partners who join ESI
  • Assist the ISR and RSR in developing and implementing account management strategies
  • Populate and maintain the ESI communications database for new resellers/partners
  • Manage initial sign up, quotes, and tracking of new resellers/partners
  • Become an expert on the ESI product - SIP and Cloud Phone Systems
  • Facilitate interdepartmental communications to resolve reseller/partner issues as needed
  • Understand all internal software tools including Excel, MAS 500, HubSpot and maintain timely and accurate database updates
  • Facilitate sales webinars and demo’s
  • Spend 6 hours or more a day at assigned desk making calls

Physical Requirements

  • Good command of the English language and an understandable telephone speaking voice
  • Ability to extensively utilize a telephone (headset, if necessary) and PC
  • Spend six hours or more at an assigned desk making calls

Additional Requirements

  • Minimum high school education or equivalent
  • Good written and verbal skills
  • Expert knowledge of the sales process, inside sales experience required
  • Excellent telephone sales skills
  • Working knowledge of computer software, i.e. Excel, Word, file creation/management and internet navigation