Senior Network Engineer
You will help design and build high performance and highly available network solutions for colocation and low latency environments.
We usually respond within three days
Opticore IT is currently searching for a Senior Network Engineer to join one of our Financial Services clients for a new data centre implementation project. This opportunity will require you to be in Central London up to 4 days a week.
Opticore IT is a specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within fast-paced, challenging environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more.
You will be responsible for the deployment, and configuration of cutting-edge data centre technologies. This opportunity requires someone with experience in Low Latency Networks, Colo Infrastructure and Automation.
What you'll be doing:
- Global WAN solutions
- Cloud connectivity
- Low latency networks, including layer 1 switching
- Timing solutions using GPS, PTP, NTP and PPS
- Packet capture solutions, including optical taps, SPAN, tap aggregation and timestamping
- Packet Analysis using Wireshark
- Interconnecting for market data and order entry in exchange collocations
- Multicast configuration and troubleshooting
- Automation tools, including Git, Python, Golang, Jenkins, Terraform and Ansible
What you'll bring:
- Minimum CCNP qualified network engineer
- Experience using Routing protocols - BGP
- Low latency networks, including layer 1 switching
- History working with Cisco IOS-XR, Cisco NXOS, Arista EOS routers and switches (one or more of these)
- Experience working on WAN networks, preferably OTN
- Implementation of new networks/WAN circuits
- Handover of new networks/WAN circuits
- Migration to new networks/WAN circuits
- Using automation for Day-1 deployment and Day-2 network management using Ansible and Python preferred
- Work on trading related networks
- Working with market data, exchanges, brokers
What you’ll gain:
Here at OpticoreIT we believe in investing in our team as we understand that we are only as great as our engineers, so learning and development is a big deal for us. Whether you’re going for a CCNP, CCIE, Hashicorp, Python, Cloud Technology or anything in between Opticore IT has your back with all our training, labs, courses, and shared knowledge and the most important part it’s all free! On top of that, we also give you:
- Competitive Salary & discretionary bonus
- 23 days holiday + bank holidays
- Private healthcare & dental
- Pension
- EV car, workplace nursery, tech, and cycle-to-work salary sacrifice schemes
- Team & Company Social events
- EMI share scheme
Diversity:
At Opticore IT we embrace diversity and are committed to equal opportunities. We actively recruit for an inclusive and diverse workforce and as such, want to ensure we do everything we can to support your application.
We want you to feel empowered to let us know if you require any adjustments to be made with your application or interview process so please speak to our recruitment team.
- Department
- Networks
- Locations
- London
- Employment type
- Full-time
- Job Type
- Hybrid, Office Based

About OpticoreIT
We offer best-in-class IT network solutions to keep organisations connected to their customers and clients, keep their data secure and, keep them ahead of the curve.
We pride ourselves on our people and the practical value we add in the development and deployment of technology.
Senior Network Engineer
You will help design and build high performance and highly available network solutions for colocation and low latency environments.
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