--- title: "Resource Requirement - Senior Specialist/Engineer Service Operations for Mission Critical Radio & Cellular Systems" ocid: "ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce.json" source: "Contracts Finder" current_stage: "Tender" buyer: "Sita" published: "2026-08-12" --- # Resource Requirement - Senior Specialist/Engineer Service Operations for Mission Critical Radio & Cellular Systems Buyer: Sita Current stage: Tender OCID: ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce.json) ## Summary SITA is seeking a senior specialist or engineer to provide technical leadership for the operational support, maintenance and continual improvement of Heathrow Airport’s mission-critical communications infrastructure. The service covers a diverse estate of legacy and modern radio systems, RF-over-fibre distributed antenna systems, public and private cellular networks, and IP-based communications platforms. Scope includes TETRA, DMR, PMR and MPT1327 radio, 2G/3G/4G/5G cellular infrastructure, mission-critical dispatch systems, fibre and IP communications, subscriber devices, vehicle installations, antennas and RF distribution. The work supports communications across terminals, tunnels, plant rooms, communications rooms, baggage facilities, engineering areas and airside operational environments at Heathrow Airport. This is a specialist technical service, classified under recruitment services and technical services. The process has reached tender: SITA invited suppliers to submit offers for the requirement. The tender deadline set by the buyer is 4 September 2026 at 5:00pm. The contract is scheduled to run from 1 October 2026 to 31 August 2028. Its estimated value is between £150,000 and £250,000, inclusive of the stated minimum and maximum values, in GBP. The opportunity is identified as suitable for small and medium-sized enterprises. The requirement is presented as a single service covering the senior specialist engineering role and associated operational support. Suppliers should assess the detailed tender requirements and prepare an offer addressing the technical and service leadership responsibilities described for Heathrow’s communications environment. This opportunity suits an experienced mission-critical communications engineering provider or specialist individual able to take senior technical ownership of a complex operational estate. Relevant capability includes advanced radio-frequency and cellular engineering across TETRA, DMR, PMR, MPT1327 and 2G/3G/4G/5G systems, together with RF-over-fibre distributed antenna systems, IP networks, fibre infrastructure and dispatch platforms. Suppliers should be able to lead fault resolution, maintenance and continual service improvement while keeping communications resilient and supportable. The role also demands operational leadership, service transition, supplier and manufacturer management, engineering-partner coordination and effective engagement with customers, project teams and other stakeholders. Experience supporting subscriber equipment, vehicle installations and communications across demanding airport or other safety-critical environments would be particularly relevant. The opportunity is suitable for SMEs with the necessary specialist capacity. ## Notice SITA is releasing an opportunity for a required Senior Specialist in Mission Critical Radio & Cellular Systems, you will need to provide technical leadership for the operational support, maintenance and continual improvement of Heathrow Airport's critical communications infrastructure. Working across a diverse technology estate spanning legacy and modern radio systems, RF over Fibre Distributed Antenna Systems (DAS), public and private cellular infrastructure and IP-based communications platforms, you'll lead the resolution of complex technical issues while helping shape the future direction of operational communications at Heathrow. The requirement is for advanced engineering expertise with operational leadership, supplier management, service transition and stakeholder engagement. You'll work closely with customers, project teams, equipment manufacturers and engineering partners to ensure services remain resilient, supportable and ready to meet Heathrow's evolving operational requirements. You'll work across one of the most diverse operational communications estates in the UK, including: Mission Critical TETRA radio systems Commercial DMR and PMR radio systems Legacy MPT1327 infrastructure RF over Fibre Distributed Antenna Systems (DAS) Multi-Operator Cellular Infrastructure (2G/3G/4G/5G) Mission Critical Dispatch Systems Fibre and IP communications infrastructure Radio subscriber devices, vehicle installations and associated accessories Airport-wide antenna and RF distribution systems Supporting critical infrastructure across terminals, tunnels, plant rooms, communications rooms, baggage facilities, engineering areas and airside operational environments. You'll help operate and evolve one of the UK's most technically diverse mission-critical communications environments, working with industry-leading technologies that keep Heathrow Airport connected every minute of every day. You'll be trusted to lead, innovate and influence the future direction of operational communications while working alongside experienced engineers who are passionate about delivering exceptional service. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/bb3089e3-2b30-432c-ba6a-acfceab35dea | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Not Specified | | Procurement method details | Not specified | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 12 Aug 2026 | | Submission deadline | 4 Sep 2026 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 1 Oct 2026 - 31 Aug 2028 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £250,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | Sita | | Locality | HAYES | | Postcode area | Southall | | Postcode | UB3 1HA | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI7 Outer London - West and North West | | ITL 3 | TLI74 Harrow and Hillingdon | | Local authority | Hillingdon | | Electoral ward | Hayes Town | | Westminster constituency | Hayes and Harlington | | Delivery location | Not specified | ## CPV Codes ### Divisions - 71 - Architectural, construction, engineering and inspection services - 79 - Business services: law, marketing, consulting, recruitment, printing and security ### Codes - 71356000 - Technical services - 79600000 - Recruitment services ## Release History - 12 Aug 2026 at 16:10 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/bb3089e3-2b30-432c-ba6a-acfceab35dea ## Documents - https://www.contractsfinder.service.gov.uk/Notice/bb3089e3-2b30-432c-ba6a-acfceab35dea 12th August 2026 - Opportunity notice on Contracts Finder - https://www.competefor.co.uk/business/viewOpportunityDetailsSupplier.html?id=117380749 Please follow this link to view the notice. ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-870696f5-cf15-4b85-ac51-139c9b6272ce.json.