Jobs / Opportunities


Business Partners / Co-Directors

Looking for a change of direction?

In short, I am Mark Trowbridge founder of ConXhub and I am looking for Business partners – this could be the opportunity of a lifetime or the death of you!

I didn’t have the luxury of starting ConXhub with a couple of student friends, dreaming up the corporate direction & how we were going to spend the millions…  but  when you think about it that’s quite logical; I am too dunce to be a student and I certainly haven’t got any friends!!!

I had it lucky when ConXhub simply appeared in front of me. It’s an amazing product, beautifully engineered with a $multi-billion market and all I do is swan around like Little Lord Fauntleroy spending every profitable penny I can!

As a Boss I suck! If you have time to complain then you have more time to get work done!  … and as for benefits? Well, you’re lucky to have a job at all! As a partner; I’ll lure you in with promises of loads of spare time, money pouring out of every orifice, amazing travel opportunities, and even day-drinking……  Fame, Riches, Freeeedom! All kibosh…and Don´t wake me, I´m working!…   if you do, you´ll find I am cantankerous, one-dimensional, stubborn, arrogant, self-opinionated & obstinate. I just want people around me I can shout at, irritate and ensure they have nightmares every day & night (yep, I expect work 24/7, 365)!

I couldn´t care less about what you have done before, what you have achieved to date – that´s the past, it’s irrelevant, I’m only interested in what I can pull from you moving forward; blood, sweat and tears while you run back to your mammas bosom!

If you are still reading then you´ll need to consider if the above is for real or maybe a bit tongue in cheek.

ConXhub is still a start up, but a profitable one. It has been growing month on month sometimes as much as 20% and clients love it! If you don´t mind rolling up your sleeves,  getting your hands dirty and you don´t mind the challenge of helping grow a multi-million dollar company, then contact Paula to set up a call…. or maybe that will just wreck your life!


Help!!! CMO, CIO, Sales Director and more…


Send covering email to



Senior VoIP Engineer

Required Skills:

  • 3-5 years of experience working with VoIP PBX’s and Unified Communications
  • Expert-level knowledge of VoIP protocols
  • Ability to analyse call flows with Wireshark and use tcpdump, ngrep and sngrep
  • Good knowledge of network technologies (OSI model, TCP/IP, LAN, WAN, DNS, DHCP, QOS)
  • Good knowledge of Linux OS
  • Knowledge of virtualisation technologies (HyperV, vmWare)
  • Experience in problem analysis and resolution, previous experience in technical assistance / help desk
  • Experience with Telecommunications standards DECT / SIP / ISDN / Analog
  • Strong communication, technical and analytical skills
  • Quick learner, eager to learn new products and technologies
  • Team player with high level of dedication and commitment

Primary Responsibilities:

Respond to support queries by phone, email, chat, ticketing system

  • Advise customers on the proper use of the product
  • Work closely with Partners and assist with large scale deployments
  • Work on integrations between ConXhub and 3rd party products
  • Identify, analyze and troubleshoot technical issues to provide help in a timely manner
  • Work in collaboration with other members of the Technical Support Team and help with bugs / improvements
  • Advice on technical pre-sales queries
  • Train partner engineers on the correct use of products
  • Use technical skills to work on complex technical solutions
  • Manage supplier, pricing tools and billing reconciliation
  • Desirable skills:
  • Multiple industry and vendor certifications such as Microsoft and Cisco;
  • Knowledge / work experience with Asterisk, freeswitch, webRTC; billing

We offer:

  • Apartment in Spain ;
  • Competitive Salary;
  • MacBook;
  • Flexible working.


  • Send covering letter & CV to:



IOS / Swift Developer

Job Description

We are looking for an iOS developer responsible for the ongoing development and maintenance of our core application. Your primary focus will be the onward development of our iOS application and its integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.


Build and maintain our core application and modules for the iOS platform
Ensure the performance, quality, and responsiveness of applications
Collaborate with a team to define, design, and ship new features
Identify and correct bottlenecks and fix bugs
Help maintain code quality, organization, and automatization


Proficient with Swift
Experience with iOS frameworks such as Core Data, Core Animation, etc.
Experience with offline storage, threading, and performance tuning
Familiarity with RESTful APIs to connect iOS applications to back-end services
Knowledge of other web technologies and UI/UX standards
Understanding of Apple’s design principles and interface guidelines
Knowledge of low-level C-based libraries is preferred
Experience with performance and memory tuning with tools
Familiarity with cloud message APIs and push notifications
Knack of bench-marking and optimisation
Proficient understanding of code versioning tools


Send CV and covering letter to



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