Senior System Architect

Location: London

Department: Technology - System Engineering Space | Terrestrial

About Us

Avanti Communications (“Avanti”) is a global multi-orbit provider of fully integrated connectivity services and solutions.

Founded in 2002, with a mission to help the world become better connected, Avanti leverages satellite technology to create custom solutions that protect communities and unlock opportunities for individuals, communities, businesses, and governments all over the world.

As a global business, Avanti is able to deliver reliable, high-performance solutions worldwide, even in the most challenging of locations. It uses its scale and expertise to connect those in hard-to-reach rural areas, improving access to education and helping to create a safe environment for people to live and work. Avanti is the leading Ka-band high-throughput satellite capacity partner to the communications industry in Europe, the Middle East and Africa.

For more information, please visit

Role Purpose

The role will report directly into the Head of System Engineering and whilst specific responsibilities will be dependent upon the changing needs of the Avanti business, the following provides an overview of the role’s key responsibilities and measures

  • Architect, Design and Deliver solutions using existing Infrastructure components. Where new infrastructure technologies are being introduced, implement them, and establish best practice for their adoption. Resolve incidents that have not been seen before and initiate change to ensure that issues can be easily dealt with in future.
  • Contribute to the Technology Roadmap for Avanti Technology Data Centres and Avanti Services
  • Evaluate new tools and techniques being able to understand their value and impact.
  • Lead group design discussions on my area of expertise and be able to present with authority to a variety of audiences.
  • Collaborate with Digital Engineering team to understand their requirements and assist them consuming Infrastructure in the most seamless way possible.
  • Coach and mentor system engineers across Technology who are at a more junior level. Ensure that my own team’s designs are of a high quality and understand the impacts to any other areas of infrastructure.
  • Keep technical skills up to date and keep track of new technologies, understanding how they might benefit the Technology team and wider Avanti.
  • Introduce automation for high performance and effectiveness.
  • Be the key technical and design authority for the Team and along with the Solution Engineering, the main relationship holder with the Architecture and Product Team. They will work closely to both feed in design and business practicalities and limitations to sculpt architectural strategy and roadmaps as well as translate these into Networks and facilitate these goals into real-world designs the team can deliver.

Key Accountabilities & Responsibilities

  • Experience designing and deploying solutions for large, complex global organisations
  • Analytical and structured approach to design, process, and advanced troubleshooting
  • Understand Avanti Technology and business strategies and convert into technology roadmaps and innovative solutions that best achieve these goals
  • Ability to produce and maintain high quality HLD/LLD and Standards documentation
  • Well organised self-starter who takes personal ownership and accountability at required levels of the work stream and project life cycles; willing to go the extra mile at every opportunity
  • Builds and maintains positive relationships within and across teams
  • Provides technical leadership within teams and mentoring for individuals
  • Communicates effectively, able to deliver and present both written and verbal, designs, strategies and concepts clearly and affectively to Senior & Jnr staff alike
  • Take ownership, to keep up-to-date and embrace the latest industry technologies and associated supplier solutions like SDN and SDWAN 

Skills & Qualifications

Required Technology Skills (Applicant should possess a min 3 of the below)

  • Excellent/CCNA levels of practical experience in designing/building, operating large-scale, Multilayer
  • Switching and Routing using Juniper or preferably Arista and Cisco equipment and OS in a WAN and LAN environment using technologies like Multicast, Port Channelling, EIGRP, CDP, GLBP, VRF, QoS
  • Very good knowledge of Wide Area Networking technologies and protocols, such as MPLS, WAN,CoS, DWDM. Ideally, with experience of dealing with major Global Comms suppliers
  • Excellent technical knowledge of OSI network topologies, troubleshooting and design eg Routing Protocols (BGP, OSPF, iGRP), DNS, DHCP, IP Address Management and TCP/UDP Port RFC & IEEE 802-based standards.
  • Juniper/Cisco switches deployed in Spine/Leaf topology
  • High levels of VPN experience along with associated technologies and protocols eg IPSec, Public/Private
  • Key Encryption, TLS/SSL, digital cert techniques like ISA/KMP GRE and DMVPN
  • High levels of Load balancing & Global/DNS balancing technologies and techniques, preferably Fortinet hardware and/or software appliances/cloud versions
  • Good understanding of browser-based technologies and protocols like HTML, HTTP/HTTPS and XML
  • Good understanding of Network Management technologies and protocols like SNMP, Netflow, IPSLA, along with practical experience of associated Network Management & Alerting Tools

Desired Technical Skills (on top of the above mandatory skills)

  • Good technical knowledge of Firewalls Platforms and Technologies, including build/configuration of some of the following Fortinet (pref along with associated Management Systems and Firewall rule analysis tools eg Skybox, Tufin
  • High levels of knowledge of remote access and two factor authentication technologies and AAA solutions, eg RSA, Juniper/Pulse, Cisco ACS, Radius
  • Sound knowledge of the main Cloud/Hyper-Scalers technologies from likes of Azure, AWS and Google and associated Private and Hybrid Cloud solutions especially when it comes to network connectivity like Express Route and Direct Connect and how these function over CoLo provider technology like Equinix Cloud Exchange
  • High levels of experience of Threat prevention and detection techniques and associated technologies like IPS, IDS, APT/SEIM, Secure Proxy.
  • SDN/automation technologies/configuration tools/ ZTP and rom likes of Juniper/MIST along with more open source/Technology-wide solutions like GIT, Chef, Anisble or Puppet, preferably in a DevOps environment
  • Automation and Scripting knowledge (eg Python, Unix/Linux or PowerShell & Batch)


  • A Competitive Salary, pension scheme, and life assurance & private medical insurance
  • A generous and highly achievable bonus scheme – paid annually based on individual and company performance against targets
  • Along with 25 Days Annual Leave (excluding bank holidays) plus an Additional Day on us for your Birthday
  • Buy or sell up to 3 holiday days per annum
  • Free access to the Employee Assistance Programme

In addition to the above responsibilities, the jobholder is required to perform other reasonable duties as assigned by the line manager from time to time. 

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