Network Engineer / Site Reliability Engineer

Edenred; Swindon; Hybrid; GBP 50,000 - 65,000; Full time

Benefits offered by this job

25 days annual leave

Hybrid working environment

Pension scheme

Discretionary bonus

Medical & travel cover

Life insurance

Wellbeing program

Season ticket loan

Cycle to work

Employee discounts

Referral bonus

Digital learning

Snacks in office

Volunteering programme

Social events

Job summary

Edenred PayTech in Swindon is seeking a Network Engineer / Site Reliability Engineer to design, build, and operate large-scale, fault-tolerant systems. The role combines software, systems, and networking engineering across on‑prem and cloud environments.

You will implement SLOs/SLIs, monitor performance, and drive security and cost optimisations while collaborating with AWS architects and Infosec. Hybrid work with in-office days is required.

Qualifications

• Strong expertise in AWS services and architecture.
• Certifications in relevant technologies.
• Experience with PCI DSS and security frameworks.
• Strong problem-solving, collaboration and incident management.
• Working knowledge of Cisco Switching and Routing.
• Firewall knowledge: Check Point and FortiGate.
• TCP/IP, Ethernet, Wi‑Fi, cabling.
• Observability tooling: monitoring, logging, alerting.

Responsibilities

• Ensure PCI DSS compliance and implement security best practices.
• Collaborate with AWS architects to design scalable, secure AWS infrastructure.
• Establish and advocate for networking and infrastructure best practices.
• Automate with IaC tools like Terraform and Env0.
• Monitor and optimise system and network performance and security.
• Scale systems through automation and reliability improvements.
• Collaborate with cross-functional teams to align tech with business goals.
• Conduct security audits, vulnerability assessments and BCP reviews.
• Evaluate new technologies to enhance platform capabilities.
• Develop and maintain architecture and process documentation.
• Maintain resilience, availability, and disaster recovery.
• Define, implement, and monitor SLAs with SLOs/SLIs.

Skills

AWS

PCI DSS security

Incident management

Networking basics

Observability tooling

DevOps mindset

Agile

Jira experience

Communication

Tools

Terraform

Env0

Cisco switching & routing

Check Point & FortiGate

Python scripting

Bash scripting

PowerShell

Job description

Take a step forward and let Edenred surprise you.

Every day, we deliver innovative solutions to improve the life of millions of people, connecting employees, companies, and merchants all around the world.

We know there are hundred ways for you to grow. With us, you will expand your skills in a multicultural, challenging, and dynamic environment.

Network Engineer / Site Reliabilty Engineer

Swindon – Hybrid

Salary - £50,000 - £65,000 dependant on experience + Annual Bonus

We are hiring for a Network Engineer (SRE), who will combine software, systems, and networking engineering principles to design, build, and operate large-scale, highly distributed, and fault-tolerant systems.

Working closely with the wider team, you will help to ensure that Edenred Paytech's services, including both critical internal platforms and external-facing systems, achieve high reliability and meet or exceed uptime requirements by defining and maintaining clear Service Level Objectives (SLOs) derived from Service Level Agreements (SLAs). Using industry best practices, you will establish measurable Service Level Indicators (SLIs) that provide precise, data-driven metrics to evaluate performance against these SLOs. You will continuously monitor and analyse these indicators, including network performance metrics to detect deviations early, enabling proactive incident response and targeted improvements.

You will oversee system and network capacity and performance, manage resource utilisation efficiently, and conduct thorough cost analytics to identify optimisation opportunities.

What you will be doing:

• Ensure PCI DSS compliance and implement best practices such as the latest encryption, access control, documentation and patching to maintain the highest level of security.
• Collaborate with AWS architects to design and implement scalable, secure AWS infrastructure that effectively supports application deployment and operations, providing input and expertise as necessary.
• Establish and advocate for best practices in networking and infrastructure connectivity, enhancing system efficiency and reliability.
• Automate processes using Infrastructure as Code (IaC) tools like Terraform and Env0 to improve operational efficiency and deployment speed.
• Monitor and optimise system performance and security of both on-prem, and cloud resources.
• Scale systems sustainably through mechanisms like automation and evolve systems by pushing for changes that improve reliability and velocity.
• Collaborate with cross-functional teams to align technical strategies with business objectives.
• Perform regular security audits, vulnerability assessments, and business continuity plan (BCP) reviews, collaborate with Infosec to maintain secure platforms and ensure timely implementation of security patches.
• Evaluate and recommend new technologies and tools to enhance platform capabilities and overall performance.
• Develop and maintain comprehensive documentation for systems architecture, processes, and procedures to facilitate knowledge sharing and compliance.
• Maintaining and verifying resilience, availability, and disaster recovery.
• Define, implement, and monitor SLAs by establishing measurable SLOs and SLIs, using data-driven insights to ensure service reliability meets business expectations and proactively address any deviations.

What you will bring:

Essential Criteria:

• Strong expertise in AWS services and architecture: Proven experience in designing, implementing, and managing scalable and secure cloud infrastructures using AWS tools and services.
• Certifications in relevant technologies: Possession of industry certifications to validate expertise.
• Experience with compliance and security standards: Familiarity with PCI DSS and other relevant security frameworks to ensure the infrastructure meets regulatory requirements and best practices.
• Strong problem-solving collaboration and incident management capabilities.
• Working knowledge of Cisco Switching and Routing.
• Working knowledge of Check Point Firewall and FortiGate Firewalls.
• Strong TCP/IP and Ethernet experience, including cabling, fibre optics, and Wi‑Fi.
• Working knowledge of VLAN, VPN, and WAN technologies/protocols, such as MPLS and BGP.
• Strong understanding of observability tooling (monitoring, logging, and alerting).

Desirable Criteria:

• Proficiency in scripting and automation: Skills in programming/scripting languages such as Python, Bash, or PowerShell and Terraform for automating tasks and processes.
• Understanding of DevOps practices: Familiarity with DevOps principles and methodologies to enhance collaboration between development and operations teams.
• Ability to evaluate and implement new technologies: An aptitude for assessing emerging technologies and tools to enhance the organisation's cloud strategy and infrastructure.
• Strong communication and interpersonal skills: The ability to effectively collaborate with cross‑functional teams and convey technical concepts clearly to non‑technical stakeholders.
• Experience with Agile methodologies: Familiarity with Agile frameworks, such as Scrum or Kanban, to support collaborative development and iterative delivery.
• Experience with Jira
• Good working knowledge of ITIL processes such as changes, incident, and problem management.

Why Edenred PayTech?

We are a subsidiary of the Edenred group and leaders in prepaid solutions including banking, virtual cards, debit, credit, and prepaid processing.

As an Edenred PayTech employee you will get the support and structure that you need to enjoy your work and develop your career while doing what you love and making a difference in a fast‑paced and innovative business.

What you will get:

• 25 days annual leave plus Bank Holidays
• Hybrid working environment (min. 3 days per week in the office)
• Pension Scheme – employer 6% with minimum employee contribution 3%
• Discretionary bonus scheme based on company and personal performance.
• Medical & international travel cover (leisure and action sports)
• Life insurance (4x salary)
• Wellbeing Employee Assistance Program (extended access to family members)
• Holiday trading scheme
• Season ticket loan
• Cycle to Work scheme
• Employee discount shopping platform
• Employee referral bonus scheme
• Digital learning platform
• Complimentary fruit and other ‘in office’ snacks & refreshments
• Volunteering programme
• Social events

Diversity:

Edenred PayTech are proud to be an equal opportunity employer. We will not discriminate against any applicant or employee based on age, race, colour, creed, religion, sex, sexual orientation, gender, gender identity or expression, national origin, citizenship, marital status or civil partnership/union status, disability, pregnancy, genetic information, or any other basis prohibited by applicable country or local laws.