We’re Hiring! “.NET/Mobile Developer Market-Leading Apple/Android Security Tracking Product (York)”

Technical Controller Working at His Workstation with Multiple Displays. Displays Show Various Technical Information. He's Alone in System Control Center.

We are seeking an enthusiastic and innovative .NET Developer to join the vibrant development team behind Vismo; a market-leading personal security tracking product designed for all mobile phone platforms (Apple, Android, Windows). Vismo is rapidly expanding in response to increasing sales, opening new sales offices in the US to complement the UK Head office. This role offers an exciting opportunity in a dynamic environment for a .NET developer keen to work at the leading edge of web and mobile development.

The product: Vismo (www.vismo.com)

  • A robust, and mature market-leading security tracking application used by some of the largest blue chip companies in the world in industries such as oil and gas exploration, banking and NGOs.
  • Vismo provides tracking, panic alerts, mapping, two-way SMS, geo-fencing and check-ins through a secure website.
  • Available on iPhone, Android, Windows Phone, sat phones and personal trackers
  • Award winner for innovation at last year’s ASIS global security conference.

The work

  • Developing the main web-based tracking portal.
  • Design and implementation of Web API supporting the product and third party integration.
  • Technical pre-sales meetings and conversations with technology partners and customers
  • Designing and creating innovative new features for the application
  • Development of the Vismo mobile application.
  • Configuring and deploying onto Microsoft Azure, making use of the built in Visual Studio tools.
  • Elements of second-line technical support for the Vismo product
  • Being responsible for ensuring code written is of high quality, using SOLID principles.
  • Testing code and participating in code reviews.
  • Taking responsibility for day to day progress of individual tasks

The Skills

We are seeking an innovative and creative and candidate equally comfortable in technical customer discussions as coding. Candidates must also have a drive to write clean, maintainable code of a high quality with a keen eye for code organisation and design. Candidates must have proven prior experience working with the .NET framework and a strong knowledge of the C# language and run-time library. Knowledge of web based applications is essential and experience with frameworks such as AngularJS would also be an advantage. Knowledge of building mobile applications ideally on iOS and Android is also desired.

The product is highly secure and subject to industrial-strength penetration tests and hence knowledge of secure programming techniques and models and the ability to write robust software are essential.

Any experience in mobile development would be useful but there will be the opportunity to cross-train into development on iOS, Windows Phone and Android mobile platforms,

Candidates should demonstrate strong experience in some of the following areas:

  • C# (with experience of LINQ, asynchronous programming etc.)
  • .NET framework (at least version 4.0)
  • Mobile Development experience on iOS and Android
  • SQL Server & T-SQL
  • ASP.NET MVC & Razor
  • ASP.Net Web API
  • .NET server technologies (such as Entity Framework, WCF)
  • Web client technologies (JavaScript, knowledge of REST based APIs)
  • Source control solutions (e.g. Git, TFS)
  • Visual Studio (including use of NuGet)

The Company

Vismo is a dynamic and rapidly growing company which is part of the £23m+ turnover Cellhire group. Cellhire is an expert in mobile communications with 30 years’ heritage with offices around the world. Vismo is going through a period of continued expansion due to the success of the product, expanding into the US and growing the sales, support and development teams. The majority of customers are US-based and there is potential for travel. This financial year will see revenues increase again year-on-year. In the light of global tragedies like Paris and Brussels, companies are becoming more aware of the need to know the location of their staff at any time. Vismo satisfies that need in an innovative and ground-breaking way and addresses a growing market. If successful, you would be joining a vibrant development team working on the latest platforms, operating out of the Vismo Global Headquarters in an attractive setting in York.

Contact Details

For more information regarding this position, please contact Colin Dale at colindale@vismo.com

Using a tracker in a hostile environment? Why you still need to make sure you have analogue support as well.

Author: Matt Timblin

Publication Date: November 4, 2016

Published: https://www.linkedin.com/pulse/using-tracker-hostile-environment-why-you-still-need-make-timblin/

The use of trackers – particularly ones that sit as mobile applications – has grown over the last few years. From everyday apps like “Find Friends”, through ones offered at a more commercial level, integrated organizationally or by individuals such as Vismo and then a whole host of other options in between.

trackingThere was a time that such technology was little used by individuals traveling to high risk environments and was the preserve of the bigger organizations; but times have changed and these applications have become accessible to pretty much anyone with a smartphone. The trouble is that with this accessibility often comes reliance and misplaced confidence. More and more I hear people tell me that they are using a tracker with panic alarm as the mainstay of their risk management strategy but, when you delve a little deeper, things are often amiss.

A tracker and panic alarm might alert someone to the fact that you are in trouble and where you are…but it is the human response that will determine how that information is leveraged.

This is particularly true of what I will call the “lone” user who subscribes to one of the many potential offerings in this field. They are confident that, if things go wrong, they can press the button and raise the alarm. Unfortunately, what seldom seems to accompany this is the “and then what”? If you are going to use a tracking device and panic alarm, it is probably worth considering the following few questions;

  • Will it work?? Most smartphone applications rely on mobile data – is there coverage and do you have enough credit to sustain its use.
  • Do you have a back-up plan? Have you agreed a comms / check in schedule with anyone?
  • Who is alerted at the other end when the alarm goes off? Do they know they are the emergency response?
  • What do you want them to do if they receive the alarm? Have you briefed them on this?
  • Do they have contact numbers for people you are with and who they should call first?

Technology is great and its continuous evolution provides new and innovative ways to help manage and respond to threats. It should never be used on its own though and needs to have resiliency built in by way of a robust plan – this is never truer than when working in high risk environments.

However good our digital solutions are, they still need an ‘analogue’ human accompaniment for maximum effectiveness.

A tracker and panic alarm is only the initial trigger. What comes next and how effective the response will be depends, in large part, on what answers you have for the questions posed above.

Vismo Global Tracking Application Introduces New Timed Check-in Functionality

Vismo has now enhanced its existing Check-In function! The Check-In function, which enables travellers to submit their immediate location information back to the Vismo platform, has been augmented with an additional Safety Timer function.

Specifically designed to enhance the safety of travellers and lone workers who may face periods of increased or additional risk, Vismo’s Timed Check-Ins allow users to set a timer which will automatically trigger an alert if the traveller does not explicitly cancel it.

For example, if a traveller is required to enter a high-risk area for a short period, they may choose to Check-In with the control centre prior to entering the area and configure an appropriate safety timer (e.g. 30 minutes), which they may cancel once they have safely left the area. If the user fails to cancel the timer, the control centre is automatically notified by Vismo, regardless of whether the device is in mobile coverage, or even still working! As with other notifications, these can be configured to send an e-mail and/ or an SMS message.

The Timed Check In feature is available immediately on the Vismo Smartphone Application, which operates on iPhone and Android phones.

Timed Check Ins 1

For more information on Vismo, visit www.vismo.com or contact us on +44 (0) 1904 616666.

The Vismo Team tracks down Levison Wood!

Colin-Levison-WoodThe Vismo Team were delighted to meet British explorer, best-selling author and photographer Levison Wood at his performance of ‘An Evening with Levison Wood’ at the Grand Opera House, York. Levison Wood is currently touring the UK as he shares his experiences and behind the scenes moments from his extended walking expeditions across Africa, Asia and Central America, and on all occasions, Levison was tracked by Vismo.

In 2014, Levison undertook his first ever expedition, walking the entire length of the River Nile over the course of 9 months. In 2015, Levison took on an even more ambitious expedition to walk the length of the Himalayas from Afghanistan to Bhutan. Levison’s most recent expedition involved walking 1800 miles along the length of Central America from Mexico to Columbia. All expeditions had been documented in critically acclaimed Channel 4 series’, namely ‘Walking the Nile’, ‘Walking the Himalayas’ and ‘Walking the Americas’. All episodes can be viewed via the following link:


Vismo was integral to ensuring the safety and security of Levison during these expeditions, as Vismo was enabled on his smartphone with Tracking and Panic Button capabilities. Levision was reassured in the knowledge that in the event that something went wrong, his support team would be able to immediately identify his location through Vismo and provide necessary assistance.

For further information on Vismo and our work with Levison, please don’t hesitate to contact Colin Dale on +447566610610 or colindale@vismo.com.

The ISIS Hostage and Vismo Satellite Tracking

After being captured by ISIS fanatics in May 2013, freelance photographer Daniel Rye was held hostage for thirteen months in Syria. The ISIS Hostage is a moving and terrifying story that details Daniel’s friendship, suffering and survival under extreme circumstances.

The ISIS Hostage Snip

The book illustrates how Daniel’s story is linked within European, American and Arabian history and how it feeds into one of the most significant challenges the Middle East will face in upcoming years.

In handing over a £1.3m ransom for Daniel’s release, Daniel’s negotiator carried Vismo Satellite Tracking devices to provide the support team with his position every 60 seconds. Tracking was integral to ensuring the safety and security of the negotiator. Positional updates along with Geo-Fence and Country Change notifications were shown in the operations centre in Europe and to the local support teams.

For more information on Vismo, visit www.vismo.com or call us on +44 (0) 1904 616666.

Vismo Global Tracking Application now available on Windows 10 Mobile

Vismo-Windows-PhoneVismo uses GPS and other technologies to provide the best location service tracking updates, even indoors. Our patented technology works globally on GSM, 3G, WCDMA and CDMA networks. Vismo is also available on selected satellite phones providing tracking and security in the most remote places on Earth.
One of the most reassuring features of Vismo is the panic button. Pressing the panic button sends an immediate alert from the device to the central monitoring servers. The moment this is received, Vismo initiates SMS and email alerts to defined recipients containing details of the Vismo user and their location, allowing them to offer immediate advice on the particular situation. Whilst this is happening, Vismo will covertly record an audio clip which is and sent back to the central monitoring website where it can be played back and analysed.

Vismo uses real time Geo-Fencing capabilities, which use virtual fences around a real-world geographic area and alert employees via SMS and E-mail when they move into high-risk areas or leave safe zones. In using this feature, a user’s ability to prevent potential situations and respond effectively to an incident is enhanced.


Colin Dale, Business Development Director, Vismo, said “Vismo is a unique GPS tracking app that turns any smartphone or tablet into a Mobile Tracking device. International travellers can enhance their safety throughout the world as administrators track, protect and respond to their travellers using Vismo technology.”

“We’re delighted that Vismo is making their tracking application available to Microsoft customers,” said Craig Dewar, Senior Director of Windows Marketing at Microsoft Corp. “By offering the app in the Windows Store, Vismo makes it easy for mobile users to benefit from its safety functionality.”

To learn more about Vismo and their recent compatibility with Windows Mobile, please visit www.vismo.com/products/windows.

Ensuring Fire Fighter Safety In Emergency Responder Scenarios

Fire and rescue personnel can face serious danger in a variety of situations but particularly when they find themselves separated from their colleagues due to circumstances beyond their control, or when they are off duty and respond in a personal capacity to an incident or are caught up in an incident.

Such situations can be found in fire and explosions in an industrial complex, a building or facility collapse when a demolition goes wrong, terrorist incidents, floods, war zones, aircraft crashes, multiple vehicle accidents, bush, forest and moorland fires, domestic and commercial property fires, and incidents at sea. They can also happen where emergency services vehicles – fire, police, ambulance, helicopter etc – are broken down or damaged.

Lone workers of emergency services are especially vulnerable because of the nature of their work and their precise whereabouts being unknown or unsure of by their colleagues or other service.

Duty of care

Employees of businesses benefit from duty of care legislation, where those businesses come under the jurisdiction of countries with such legislation or understanding and take action to protect their staff in potentially dangerous situations. Increasingly, that action includes equipping staff with people tracking apps that can provide true global coverage if required. Satellite trackers are used for areas where mobile phones signals are weak or non existent.

Many Fortune 500 and FTSE 100 companies are equipping staff involved in commercial travelling with a people tracking app from Vismo, and providing the same for staff who work in potentially hazardous work environments and terrorism and kidnap hotspots. A number of UN agencies deploy the app in war zones and areas adjacent to them.

Individuals, acting on their own initiative, also purchase the app and download it to their phone of choice. The principal users are employees of larger companies, however.

Where fire and rescue personnel do not have a people tracking app, the organisation in charge of them, or which employ them, are advised to refer to duty of care legislation [or the spirit of it in countries where the legislation doesn’t exist].

People tracking can be useful in the unlikeliest of places.

People tracking can be useful in the unlikeliest of places.

Examples of use

Although industrial accidents and other non terrorist incidents are ideal for the application of the app, terrorism has been the focus in the past 18 months or so. During the attacks on the Charlie Hebdo offices and a supermarket in Paris in January 2015, 90 people – some, buyers in retail on their way to China – in the French capital had the app on their phones and were given advice by text as to what was happening, the areas to avoid and what to do if they were close to, or caught up in, the incidents.

In the attacks on tourists at a holiday resort in Tunisia, also in 2015, when 30 British holidaymakers died from gunshot wounds, 27 people in the country had the app on their phones and were kept informed about what was going on and how to minimise risks to themselves.

At a multiple bomb blast and gunfire at an election rally in Baghdad in 2014, a team of journalists attending the event helped a colleague who had become separated from them and found where she was via the app. She was directed to safety via a crisis management centre that operates in association with employers, the app and Vismo. It’s one of a number of crisis management centres around the world that provides high level support to app users and information to their employers.

The centres keep employer organisations informed at all times, during an incident, about the whereabouts of their staff, including volunteers who work for them, and what is known about their safety and what is being done to reach an successful outcome.

The app was also in use in Paris in the attacks later in the year. including inside the Bataclan Theatre, where 89 people died and rescues services had a difficult time in their rescue bid due to gunfire. It was also on phones in Belgium when suicide bombers struck at Brussels Airport and the metro in the city in March 2016.

How it works

The app is downloaded and installed on BlackBerry, iPhone, Android and Windows devices and, for those areas where there is no 3G or 4G mobile phone coverage, on satellite devices.

If users want to let their whereabouts – and what their circumstances are – be known, they activate a panic button on their phone. Immediately, a covert recording is made via the inbuilt microphone in their phone and transmitted in real time to a crisis management centre, where it’s analysed along with any email, text and or voice message sent by the users.

In return, the users quickly receive advice and other information by text. The clearer the situation becomes to the crisis management centre, the more precise is the advice and information provided. In cases where a centre is aware of an incident before any individuals affected, it sends them an alert with information and the steps to take to minimise risk to themselves.

Each centre liaises closely not only with emergency services to share information, but with Vismo, whose servers integrate information received – after the panic button has been pressed – with the precise location [or locations if more than one individual is involved]. Each location is put into a mapping solution commonly used by emergency services, and the information received is shared among those services.

Search and rescue swing into action – or are able to become better focused if already underway – with two-way voice and/or text communication used wherever possible to keep the at-risk workers informed, and reassured that help is on the way as quickly as possible. In some situations an emergency evacuation of a building or area will be made or attempted, with at risk personnel being given precise information about what is happening including how the evacuation will be carried out and what they should do or shouldn’t do to facilitate it.

Even a benign scene will pose dangers if transformed the next moment by a major accident or terrorist attack.

Even a benign scene will pose dangers if transformed the next moment by a major accident or terrorist attack.

Features and capabilities of the app at a glance

  • GPS Tracking, giving regular GPS fixes of events and allowing a user organisation’s crisis management team to view current locations, historical trails, battery life and signal strength.
  • Incident Response, showing the most current position of employees in the vicinity of any incident and sends advice, by text, on what action they should take.
  • Geo-Fencing, enabling user organisations to set up “geo-fences” and receive text messages and email alerts when an employee moves into a high risk area or leaves a safe one.
  • Online control, enabling user organisations to manage the risk and safety of all affected emergency workers from one secure, central, online location.
  • Check-in/check-out, allowing personnel to register their arrival and departure to/from a location, via the app.

Optimised location accuracy while stretching battery life

Vismo was awarded a patent earlier this year for its technology for GPS tracking on mobile devices. The company previously had a patent pending and has now secured a full patent for its unique operation. The awarded patent, GB2470376, specifically covers the design behind the algorithms and innovative operations of the app to optimise location accuracy with minimal battery drain.

The algorithms use a combination of metrics from the phone, including speed of travel, GPS, network information and phone tower locations to determine optimal accuracy for locations without incurring the large battery drain usually typical of GPS tracking applications.

Critical to the approach is how Vismo utilises the functionality of mobile devices. The company minimises the use of navigational sensors by placing them into hibernation between pre-determined intervals and uses environmental information to quickly locate a device without lengthy GPS warm-up periods. Ultimately, this produces a chronological “trail” following a user’s location point-by-point on a map.

To conclude

Lone workers and personnel in emergency responder situations anywhere in the world can be helped – and reassured – through the use of a people tracking app. Using the latest technology to pinpoint the exact location of the user and extend battery life, the app as developed by Vismo could be viewed as a natural extension of the technologies already employed by fire and other emergency services to help the safety of their personnel.

For more information, go to www.vismo.com