The table below provides summary statistics for permanent job vacancies with a requirement for knowledge and experience of Citrix products and/or services. Included is a benchmarking guide to the salaries offered in vacancies that have cited Citrix over the 3 months to 30 March 2017 with a comparison to the same period in the previous 2 years.

The figures below represent the IT labour market in general and are not representative of salaries within Citrix Systems.

Citrix
UK
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 136 103 75
Rank change year-on-year -33 -28  
Permanent jobs citing Citrix 2066 3014 3896
As % of all permanent IT jobs advertised in the UK 2.42% 2.88% 3.62%
As % of the Vendors category 5.51% 6.27% 7.67%
Number of salaries quoted 1699 2469 3265
Median salary £38,000 £39,000 £40,000
Median salary % change year-on-year -2.56% -2.50%  
90% offered a salary of more than £24,000 £25,000 £24,250
10% offered a salary of more than £62,500 £60,000 £62,500
UK excluding London median salary £35,000 £35,000 £37,500
% change year-on-year - -6.66%  

Citrix is in the vendor products and services category. The following table is for comparison with the above and provides summary statistics for all vendor product and service related skills in permanent job vacancies.

Vendor Product & Service Skills
UK
Permanent job vacancies with a requirement for skills associated with vendor products and/or services 37486 48082 50807
As % of all permanent IT job vacancies advertised in the UK 43.84% 45.98% 47.19%
Number of salaries quoted 30131 39279 40986
Median salary £46,000 £45,000 £45,000
Median salary % change year-on-year +2.22% -  
90% offered a salary of more than £27,500 £28,000 £27,500
10% offered a salary of more than £72,500 £70,000 £70,000
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

Citrix
Job Vacancy Trend

The job posting trend of jobs advertised citing Citrix as a proportion of all permanent or contract IT jobs with a match in the Vendors category.

Job vacancy trend for Citrix in the UK

Citrix
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Citrix.

Salary trend for Citrix in the UK

Citrix
Salary Histogram

The salary distribution of IT jobs citing Citrix over the 3 months to 30 March 2017.

Salary histogram for Citrix in the UK

Citrix
Top 30 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Citrix within the UK over the 3 months to 30 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -35 1954 £38,000 -2.56% 224
London -16 832 £42,500 -5.55% 80
South East -34 363 £37,000 +1.36% 39
City of London +26 185 £42,500 -7.10% 23
Yorkshire +11 158 £35,000 +2.94% 17
North West -33 155 £32,500 -7.14% 28
East of England -47 140 £42,500 - 16
Surrey +26 131 £37,500 +7.14% 8
West Midlands -12 124 £33,000 -1.49% 12
West Yorkshire +7 116 £35,000 -1.40% 14
Leeds +21 82 £37,500 +5.63% 9
Manchester -32 81 £39,000 +4.00% 15
South West -53 78 £25,500 -15.70% 8
Hampshire -27 70 £32,500 -10.95% 6
East Midlands -23 67 £40,000 +5.26% 15
Hertfordshire -34 63 £50,000 +20.48% 10
Birmingham -11 50 £41,250 +3.12% 2
Buckinghamshire +25 48 £32,000 -8.57% 10
Scotland +26 41 £50,000 +48.14% 4
Cambridgeshire +4 41 £32,500 -8.45% 4
Merseyside -4 40 £32,500 -27.77% 3
Berkshire -28 38 £57,500 +27.77% 8
North East +36 37 £30,000 +16.50% 7
Kent +10 37 £30,000 -
Tyne and Wear +37 35 £30,000 +16.50% 5
Peterborough +13 32 £31,250 -5.30% 1
Newcastle upon Tyne +35 29 £32,500 +26.21% 2
Liverpool -8 28 £30,000 -33.33% 2
Essex -19 26 £47,500 -5.00% 1
Milton Keynes +20 25 £53,750 +30.30% 8

For the 6 months to 30 March 2017, IT jobs citing Citrix also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for Citrix.

1 2988 (73.58%) Windows
2 2452 (60.38%) Active Directory
3 2382 (58.66%) VMware
4 2220 (54.67%) Microsoft
5 1573 (38.73%) Windows Server
6 1387 (34.15%) VMware Infrastructure
7 1202 (29.60%) ITIL
8 1199 (29.52%) MS Exchange
9 1128 (27.78%) MS Excel
10 1110 (27.33%) Cisco
11 1109 (27.31%) XenApp
12 976 (24.03%) Windows Server 2012
13 951 (23.42%) Windows Server 2008
14 823 (20.27%) Windows 7
15 799 (19.67%) Hyper-V
16 772 (19.01%) MS Office
17 753 (18.54%) Office 365
18 744 (18.32%) Finance
19 717 (17.66%) SQL Server
20 704 (17.34%) SQL
20 704 (17.34%) SAN
21 679 (16.72%) Firewall
22 665 (16.38%) SCCM
23 656 (16.15%) Microsoft Certification
24 652 (16.06%) DNS
25 651 (16.03%) Data Centre
26 575 (14.16%) Linux
27 527 (12.98%) XenDesktop
28 513 (12.63%) Microsoft Azure
29 508 (12.51%) DHCP

Citrix
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 1199 (29.52%) MS Exchange
2 502 (12.36%) Exchange Server 2010
3 404 (9.95%) Exchange Server 2013
4 396 (9.75%) SharePoint
5 339 (8.35%) IIS
6 310 (7.63%) Skype for Business
7 152 (3.74%) Exchange Server 2007
8 119 (2.93%) Blackberry Enterprise Server
9 102 (2.51%) Exchange Server 2003
10 79 (1.95%) Apache
11 67 (1.65%) Tomcat
12 60 (1.48%) SharePoint 2013
13 31 (0.76%) IBM Notes
13 31 (0.76%) SharePoint 2010
14 24 (0.59%) CMS
14 24 (0.59%) OpenStack
15 17 (0.42%) Site Server
16 16 (0.39%) JBoss
17 14 (0.34%) Alfresco
18 11 (0.27%) BizTalk Server
Applications
1 1128 (27.78%) MS Excel
2 772 (19.01%) MS Office
3 40 (0.98%) MS PowerPoint
4 37 (0.91%) MS Visio
5 9 (0.22%) MS Project
6 3 (0.074%) Acrobat
7 2 (0.049%) Adobe Premiere
7 2 (0.049%) Camtasia
8 1 (0.025%) Adobe Creative Suite
8 1 (0.025%) Spreadsheet
Business Applications
1 19 (0.47%) Dynamics CRM
1 19 (0.47%) Oracle Cash Management
2 13 (0.32%) Remedy ITSM
3 5 (0.12%) Dynamics AX
3 5 (0.12%) Dynamics NAV
3 5 (0.12%) Eikon
3 5 (0.12%) Maximo
3 5 (0.12%) OpenText MBPM
3 5 (0.12%) Visualfiles
4 4 (0.098%) Magento
5 3 (0.074%) Cognos TM1
5 3 (0.074%) Infor SunSystems
5 3 (0.074%) JDE OneWorld
5 3 (0.074%) SAP ERP
5 3 (0.074%) SAP Oil and Gas
5 3 (0.074%) Unit4 Business World
6 2 (0.049%) Sage 200
6 2 (0.049%) SAP Business One
6 2 (0.049%) Tesseract
6 2 (0.049%) thinkFolio
Cloud Services
1 753 (18.54%) Office 365
2 513 (12.63%) Microsoft Azure
3 340 (8.37%) Amazon AWS
4 112 (2.76%) Cloud Computing
5 108 (2.66%) IaaS
6 83 (2.04%) PaaS
7 62 (1.53%) Mimecast
8 52 (1.28%) Amazon EC2
9 39 (0.96%) SaaS
10 34 (0.84%) Azure Active Directory
11 20 (0.49%) Google Cloud Platform
12 17 (0.42%) OneDrive
13 16 (0.39%) G Suite
14 13 (0.32%) Amazon S3
15 12 (0.30%) Virtual Private Cloud
16 8 (0.20%) Route 53
17 6 (0.15%) AWS CloudFormation
18 5 (0.12%) Amazon CloudWatch
18 5 (0.12%) Amazon ElastiCache
18 5 (0.12%) Yammer
Communications & Networking
1 704 (17.34%) SAN
2 679 (16.72%) Firewall
3 652 (16.06%) DNS
4 508 (12.51%) DHCP
5 483 (11.89%) WAN
6 468 (11.52%) LAN
7 452 (11.13%) VPN
8 432 (10.64%) TCP/IP
9 247 (6.08%) NetScaler
10 187 (4.60%) Network Security
11 178 (4.38%) VoIP
12 169 (4.16%) Skype
13 164 (4.04%) Internet
14 155 (3.82%) NAS
15 149 (3.67%) Wireless
16 137 (3.37%) Cisco ASA
17 126 (3.10%) VLAN
18 119 (2.93%) Remote Desktop
19 111 (2.73%) iSCSI
20 81 (1.99%) OSPF
Database & Business Intelligence
1 717 (17.66%) SQL Server
2 142 (3.50%) SQL Server 2008
3 107 (2.63%) MySQL
4 104 (2.56%) SQL Server 2012
5 58 (1.43%) SQL Server 2005
6 55 (1.35%) SQL Server 2014
7 45 (1.11%) DB2
8 44 (1.08%) Oracle Database
9 32 (0.79%) Amazon RDS
10 20 (0.49%) SQL Server Reporting Services
11 19 (0.47%) Crystal Reports
11 19 (0.47%) SQL Server 2000
12 18 (0.44%) Relational Database
13 15 (0.37%) Oracle Database 11g
14 14 (0.34%) SQL Server Integration Services
15 10 (0.25%) SQL Server 2016
16 9 (0.22%) NoSQL
17 8 (0.20%) Azure SQL Database
17 8 (0.20%) Big Data
17 8 (0.20%) GIS
Development Applications
1 46 (1.13%) MSI
2 26 (0.64%) JIRA
3 21 (0.52%) Git (software)
4 12 (0.30%) Visual Studio
5 10 (0.25%) Jenkins
5 10 (0.25%) Subversion
6 8 (0.20%) Atlassian Bamboo
6 8 (0.20%) Selenium
7 5 (0.12%) Team Foundation Server
8 4 (0.098%) AdminStudio
8 4 (0.098%) LoadRunner
9 3 (0.074%) JMeter
10 2 (0.049%) Hudson
10 2 (0.049%) SQL Server Management Studio (SSMS)
11 1 (0.025%) Android Studio
11 1 (0.025%) FogBugz
11 1 (0.025%) InstallShield
11 1 (0.025%) NeoLoad
11 1 (0.025%) Octopus Deploy
11 1 (0.025%) Vagrant
General
1 744 (18.32%) Finance
2 210 (5.17%) Legal
3 161 (3.96%) Banking
4 157 (3.87%) Law
5 127 (3.13%) Telecoms
6 93 (2.29%) Retail
7 74 (1.82%) Publishing
8 62 (1.53%) Advertising
9 58 (1.43%) Back Office
10 55 (1.35%) Manufacturing
11 41 (1.01%) German Language
12 40 (0.98%) Marketing
13 36 (0.89%) Financial Institution
14 29 (0.71%) Billing
15 27 (0.66%) French Language
16 26 (0.64%) Front Office
16 26 (0.64%) Investment Banking
17 18 (0.44%) Games
18 13 (0.32%) Pharmaceutical
19 11 (0.27%) Electronics
Job Titles
1 926 (22.80%) Analyst
2 541 (13.32%) Support Engineer
3 449 (11.06%) Infrastructure Engineer
4 406 (10.00%) Support Analyst
5 362 (8.91%) Service Analyst
6 350 (8.62%) IT Support
7 325 (8.00%) Service Desk Analyst
8 322 (7.93%) 2nd Line Support
9 296 (7.29%) 3rd Line Engineer
10 265 (6.53%) 3rd Line Support
11 250 (6.16%) Architect
12 245 (6.03%) Citrix Engineer
13 244 (6.01%) IT Engineer
14 221 (5.44%) Consultant
15 174 (4.28%) Infrastructure Analyst
16 170 (4.19%) Network Engineer
17 168 (4.14%) Windows Engineer
18 164 (4.04%) 2nd Line Engineer
19 159 (3.92%) Administrator
20 155 (3.82%) IT Analyst
Libraries, Frameworks & Software Standards
1 84 (2.07%) Web Services
2 76 (1.87%) .NET
3 46 (1.13%) CSS
4 39 (0.96%) HTML
5 26 (0.64%) 802.1X
5 26 (0.64%) ASP.NET
5 26 (0.64%) Middleware
5 26 (0.64%) Software Packaging
6 22 (0.54%) Ajax
6 22 (0.54%) LAMP
7 16 (0.39%) FIX Protocol
8 15 (0.37%) XML
9 9 (0.22%) WAP
10 6 (0.15%) .NET Framework
10 6 (0.15%) EDI
11 5 (0.12%) Oracle Fusion
11 5 (0.12%) SAML
12 4 (0.098%) LINQ
13 3 (0.074%) MAPI
13 3 (0.074%) XMPP
Miscellaneous
1 651 (16.03%) Data Centre
2 222 (5.47%) Analytical Skills
3 204 (5.02%) Blackberry
4 140 (3.45%) Clustering
5 136 (3.35%) Driving Licence
6 130 (3.20%) Fat Client
6 130 (3.20%) Thin Client
7 116 (2.86%) Computer Science
8 113 (2.78%) Management Information System
9 102 (2.51%) Public Cloud
10 90 (2.22%) CMDB
11 89 (2.19%) iPad
12 65 (1.60%) iPhone
13 56 (1.38%) Video Conferencing
14 51 (1.26%) Enterprise Storage
15 50 (1.23%) Hybrid Cloud
15 50 (1.23%) Replication
16 46 (1.13%) PKI
17 45 (1.11%) Smartphone
17 45 (1.11%) User Experience
Operating Systems
1 2988 (73.58%) Windows
2 1573 (38.73%) Windows Server
3 976 (24.03%) Windows Server 2012
4 951 (23.42%) Windows Server 2008
5 823 (20.27%) Windows 7
6 575 (14.16%) Linux
7 410 (10.10%) Windows Server 2003
8 355 (8.74%) Windows 10
9 289 (7.12%) Windows 8
10 193 (4.75%) Unix
11 102 (2.51%) Red Hat Enterprise Linux
12 92 (2.27%) Mac OS X
13 89 (2.19%) Windows XP
14 84 (2.07%) Android
15 60 (1.48%) Apple iOS
16 49 (1.21%) Ubuntu
17 37 (0.91%) Mac OS
18 34 (0.84%) Solaris
19 25 (0.62%) CentOS
19 25 (0.62%) Debian
Processes & Methodologies
1 1202 (29.60%) ITIL
2 343 (8.45%) Service Delivery
3 332 (8.18%) Service Management
4 297 (7.31%) Presales
5 217 (5.34%) Disaster Recovery
6 206 (5.07%) Migration
7 185 (4.56%) Project Management
8 166 (4.09%) Mentoring
9 162 (3.99%) IT Strategy
10 156 (3.84%) ITIL V3
11 155 (3.82%) Continuous Improvement
12 151 (3.72%) Line Management
13 140 (3.45%) PRINCE2
14 126 (3.10%) Change Control
15 115 (2.83%) Change Management
15 115 (2.83%) Root Cause Analysis
16 113 (2.78%) Incident Management
17 110 (2.71%) Problem Management
18 103 (2.54%) Customer Requirements
19 102 (2.51%) Capacity Planning
Programming Languages
1 704 (17.34%) SQL
2 455 (11.20%) PowerShell
3 84 (2.07%) VB
4 55 (1.35%) Java
5 50 (1.23%) VBScript
6 42 (1.03%) Python
7 41 (1.01%) C#
8 29 (0.71%) C
9 28 (0.69%) VBA
10 24 (0.59%) Bash Shell
11 23 (0.57%) Perl
12 21 (0.52%) PHP
13 20 (0.49%) C++
14 17 (0.42%) Shell Script
15 16 (0.39%) JavaScript
16 8 (0.20%) T-SQL
16 8 (0.20%) VB.NET
17 4 (0.098%) Ruby
18 3 (0.074%) Delphi
18 3 (0.074%) FoxPro (VFP)
Qualifications
1 656 (16.15%) Microsoft Certification
2 446 (10.98%) MCSE
3 323 (7.95%) Cisco Certification
4 263 (6.48%) Degree
5 238 (5.86%) VMware Certified Professional (VCP)
6 214 (5.27%) CCNA
7 213 (5.25%) Citrix Certification
8 191 (4.70%) MCP
9 185 (4.56%) MCSA
10 177 (4.36%) CCNP
11 138 (3.40%) CCA
12 124 (3.05%) ITIL Certification
13 111 (2.73%) MCITP
13 111 (2.73%) Security Cleared
14 52 (1.28%) SC Cleared
15 48 (1.18%) CCIE
16 42 (1.03%) ISEB
16 42 (1.03%) PMI Certification
16 42 (1.03%) PMP
17 39 (0.96%) MCDST
Quality Assurance & Compliance
1 484 (11.92%) SLA
2 61 (1.50%) QA
3 54 (1.33%) ISO/IEC 27001
4 22 (0.54%) Disclosure Scotland
5 20 (0.49%) PCI DSS
5 20 (0.49%) PMO
6 11 (0.27%) Sarbanes-Oxley
7 10 (0.25%) Cyber Essentials
8 8 (0.20%) COBIT
9 4 (0.098%) BS25999
9 4 (0.098%) ISO 9001
9 4 (0.098%) SSAE 16
10 3 (0.074%) Dodd-Frank
10 3 (0.074%) EMIR
10 3 (0.074%) ISO/IEC 20000
10 3 (0.074%) MiFID
10 3 (0.074%) PMBOK
11 2 (0.049%) COSO
11 2 (0.049%) ISO 14001
11 2 (0.049%) ISO13485
System Software
1 2452 (60.38%) Active Directory
2 1387 (34.15%) VMware Infrastructure
3 1109 (27.31%) XenApp
4 799 (19.67%) Hyper-V
5 527 (12.98%) XenDesktop
6 385 (9.48%) vSphere
7 143 (3.52%) Microsoft App-V
7 143 (3.52%) XenServer
8 138 (3.40%) VMware ESX
9 115 (2.83%) Virtual Machines
10 109 (2.68%) VMware ESXi
11 108 (2.66%) Terminal Services
12 69 (1.70%) Virtual Servers
13 57 (1.40%) Virtual Desktop
14 45 (1.11%) Terminal Server
15 36 (0.89%) Firmware
16 35 (0.86%) Forefront TMG
17 34 (0.84%) VMware Server
18 29 (0.71%) Microsoft Virtual Server
19 27 (0.66%) VMware Workstation
Systems Management
1 665 (16.38%) SCCM
2 208 (5.12%) SCOM
3 153 (3.77%) Backup Exec
4 104 (2.56%) WSUS
5 61 (1.50%) Microsoft Clustering
6 55 (1.35%) AirWatch
7 54 (1.33%) Nagios
8 50 (1.23%) NetBackup
8 50 (1.23%) SCVMM
9 47 (1.16%) XenMobile
10 41 (1.01%) Norton AntiVirus
11 39 (0.96%) Cisco CUCM
12 38 (0.94%) Opscode Chef
13 37 (0.91%) Puppet
14 36 (0.89%) McAfee ePO
15 29 (0.71%) Ansible
16 25 (0.62%) EdgeSight
17 24 (0.59%) Cisco UCCX
18 20 (0.49%) Symantec Enterprise Vault
18 20 (0.49%) ThinApp
Vendors
1 2382 (58.66%) VMware
2 2220 (54.67%) Microsoft
3 1110 (27.33%) Cisco
4 500 (12.31%) HP
5 373 (9.18%) NetApp
6 191 (4.70%) EMC
7 188 (4.63%) CheckPoint
8 183 (4.51%) Juniper
9 177 (4.36%) Apple
10 161 (3.96%) Oracle
11 140 (3.45%) Dell
12 133 (3.28%) Symantec
13 125 (3.08%) IBM
13 125 (3.08%) Veeam
14 123 (3.03%) AppSense
15 119 (2.93%) Red Hat
16 117 (2.88%) SolarWinds
17 101 (2.49%) 3PAR
18 98 (2.41%) F5
19 83 (2.04%) Intel Security
Stockport, Cheshire
Chassam Contract
Salary: Up to £40,000 per annum
Posted: 3 hours ago
Lincoln, Lincolnshire
HAYS INFORMATION TECHNOLOGY
Salary: £18000.00 - £24000.00 per annum
Posted: 4 hours ago
Halifax, West Yorkshire
Erin Associates
Salary: £25000 - £35000 per annum + Benefits
Posted: 5 hours ago
Leamington Spa, Warwickshire
Spectrum IT Recruitment (South) Ltd
Salary: £35000 - £37500 per annum + training & benefits
Posted: 6 hours ago
North London
Coded People
Salary: £55000 - £60000 per annum
Posted: 4 hours ago
Southampton, Hampshire
Spectrum IT Recruitment (South) Ltd
Salary: £30000 - £50000 per annum + Training & Benefits
Posted: 6 hours ago
Newport, Gwent
Spectrum IT Recruitment (South) Ltd
Salary: £30000 - £50000 per annum + Training & Benefits
Posted: 6 hours ago
Worcester, Worcestershire
Certes Computing Ltd
Salary: £35000 - £40000 per annum + + car
Posted: 3 hours ago
Chelmsford, Essex
Michael Bailey Associates
Salary: Market Salary
Posted: 4 hours ago
Manchester, Lancashire
onezeero.
Salary: £40000 per annum + bens
Posted: 11 hours ago
Camberley, Surrey
Dane Partnership
Salary: £32,000 per annum (negotiable)
Posted: 12 hours ago
Bournemouth, Dorset
HAYS INFORMATION TECHNOLOGY
Salary: £30000 - £40000 per annum + Car, Pension, Healthcare Package
Posted: 1 hour ago
London
Austin Fraser
Salary: £60000 - £65000 per annum + Bonus & Car
Posted: 4 hours ago
Leeds, West Yorkshire
The Bridge Ltd
Salary: Unspecified Excellent Salary and Benefits package
Posted: 6 hours ago
Woking, Surrey
Michael Bailey Associates
Salary: MARKET SALARY
Posted: 8 hours ago
City, London
Red10
Salary: £30000 - £36000 per annum
Posted: 4 hours ago
Bournemouth, Dorset
HAYS INFORMATION TECHNOLOGY
Salary: £55000 - £65000.00 per annum
Posted: 7 hours ago
East London
Millshill Recruitment Ltd
Salary: £39000 - £40000 per annum + bens
Posted: 11 hours ago
London
Burns Sheehan
Salary: £20000.00 - £26000.00 per annum
Posted: Yesterday
Nottingham, Nottinghamshire
Cognizant
Salary: Competitive + Benefits
Posted: 2 hours ago
London
Joseph Harry Ltd
Salary: £45000 - £65000 per annum + 20% Bonus + 10% Pension
Posted: 11 hours ago
City, London
Millshill Recruitment Ltd
Salary: £60000 per annum + bens
Posted: 11 hours ago
London
McGregor Boyall
Salary: £50000 - £60000 per annum
Posted: 10 hours ago
City, London
Senitor Associates
Salary: £25000 - £27000 per annum
Posted: Yesterday
London
Plan-Net
Salary: Unspecified Competitive rate
Posted: 6 hours ago
Milton Keynes, Buckinghamshire
Reed Technology
Salary: £30000 - £40000 per annum
Posted: Yesterday
Manchester, Lancashire
Morson International
Salary: £20000.00 - £25000.00 per annum + £4k shift + Pension
Posted: Yesterday
Warrington, Cheshire
Mortimer Spinks
Salary: £28000 - £30000 per annum
Posted: Yesterday
Northampton, Northamptonshire
Emponics Ltd
Salary: £ negotiable + bens
Posted: 3 hours ago
Bournemouth, Dorset
HAYS INFORMATION TECHNOLOGY
Salary: £20000.00 per annum
Posted: Yesterday