Lead Network Engineer

Swift Software; Brussel Hoofdstad; Hybrid; EUR 90,000 - 120,000; Full time

Job summary

Swift seeks a Lead Network Engineer to own and evolve DNS, NTP, and IPAM across global sites. You’ll design, implement, test, and operate critical DNS/NTП services, collaborating with multiple squads to ensure reliability.

Based in La Hulpe, Belgium, this hybrid role requires on-site presence two days per week, and entails 24x7 on-call rotations with a focus on Infoblox DDI, BIND and NTP technologies, plus automation with Ansible and CI/CD tooling.

Qualifications

• Bachelor’s or higher in a technical discipline or significant equivalent experience.
• 11+ years of specialized technical experience can substitute a degree.
• 5+ years hands-on Infoblox DDI and DNS engineering experience.

Responsibilities

• Manage authoritative and recursive DNS services with Infoblox DDI NIOS and BIND.
• Oversee DHCP, IPAM and DNS security features (RPZ, DNS Firewall, TLS).
• Lead NTP deployment and administration across global sites; participate in on-call rotations.
• Automate IP allocation and DNS updates via REST APIs (WAPI) and Ansible/Terraform.
• Plan non-disruptive NIOS upgrades and hardware refreshes; maintain technical docs.

Skills

Infoblox DDI

DNS engineering

Red Hat Linux

NTP

Python/scripting

Ansible/Terraform

Jenkins CI/CD

Education

Bachelor’s Degree in a technical discipline

Associate’s Degree in a technical discipline

11+ years of specialized, relevant technical experience

Tools

Infoblox NIOS

ISC BIND

Wireshark

Chronyd/NTPd

Red Hat Enterprise Linux

Ansible

Terraform

Jenkins

Job description

## Lead Network EngineerApply: Brussels area, Belgium: Full time: Posted Today: 2026-16405**ABOUT US**We’re the world’s leading provider of secure financial messaging services, headquartered in Belgium. We are the way the world moves value – across borders, through cities and overseas. No other organisation can address the scale, precision, pace and trust that this demands, and we’re proud to support the global economy.We’re unique too. We were established to find a better way for the global financial community to move value – a reliable, safe and secure approach that the community can trust, completely. We’re always striving to be better and are constantly evolving in an ever-changing landscape, without undermining that trust. Five decades on, our vibrant community reflects the complexity and diversity of the financial ecosystem. We innovate diligently, test exhaustively, then implement fast. In a connected and exciting era, our mission has never been more relevant. Swift now has a presence in 200+ countries and legal territories to serve a community of more than 12,000 banks and financial institutions.# **What to expect ?*** You will work as a squad member within the DNS and NTP squad to provide an end-to-end infrastructure (design, develop, test, implement, operate and support) focused on DNS and NTP in an Agile Context* You will be located in La Hulpe as a full time employee.* You will work onsite, in La Hulpe, minimum of 2 days a week.* You will troubleshoot, resolve and report complex to mission critical problems in accordance with Service Level Agreements (SLA)* You will actively participate in the identification, design, development and testing of improvements for all aspects of the supported mission critical infrastructure* You will deploy infrastructure and software according to our change management processes* You will follow-up and document our services (systems/applications/procedures) as they evolve* You will propose and implement measures to prevent reoccurrence of problems and cases reported* You will interact and collaborate with other squads to ensure excellent customer satisfaction* You will challenge and drive improvements to our existing processes and procedures* You will develop and maintain technical documentation and prepare and give presentations to customers on systems* You will participate in a 24x7 on call rotation together with other squad members* You will participate in a weekend rotation to deploy or activate changes on the supported mission critical infrastructure# # **Required Qualifications and Experience**To satisfy the Technical Expert criteria, candidates must meet one of the following education/experience paths:* Bachelor’s Degree in a technical discipline plus 3+ years of relevant technical experience.* Associate’s Degree in a technical discipline plus 7+ years of relevant technical experience.* A minimum of 11+ years of specialized, relevant technical experience in lieu of a degree.* Specialized Expertise: Minimum of 5 years of hands-on experience dedicated to Infoblox NIOS administration and DDI protocols, advanced expertise on DNS# **Key Responsibilities*** Strong experience or expertise required in Infoblox DDI, ISC BIND. Red Hat Enterprise Linux system administration and NTP (any technology).* Advanced DNS Engineering: Manage authoritative and recursive DNS services, including Infoblox DDI NIOS, ISC BIND, complex traffic steering, and high-performance caching for mission-critical enclaves.* DHCP Infrastructure: Architect and manage robust DHCP services with failover associations to support diverse endpoint types across global theater sites.* Enterprise IPAM: Maintain the global IP Address Management (IPAM) database, ensuring accurate tracking, subnet allocation, and integration with cloud/virtualized environments.* DDI Security: Implement DNS security features, including Response Policy Zones (RPZ), DNS Firewall, and Infoblox TIDE to mitigate DNS-based malware and data exfiltration.* Automation & APIs: Utilize the Infoblox WAPI (REST API) to automate IP allocation, DNS record updates, and integration with orchestration tools like Ansible or Terraform.* Upgrade Operations: Plan and execute non-disruptive NIOS software upgrades and hardware refreshes across the global Grid.* Monitoring & Analytics: Leverage Infoblox Reporting and Analytics to identify network trends,troubleshoot resolution issues, and perform capacity planning.* Red Hat Linux Enterprise system administration, from initial setup to daily operations, including troubleshooting and recovery activities (expertise in keepalived is an asset)* Scripting, integration experience, development knowledge (Python/JavaScript/bask/korn shell/Bitbucket(GIT))* Automation & Orchestration tools (CI/CD tooling like Jenkins, Orchestration like Ansible)* Proven experience implementing, managing and maintaining security and network infrastructure for medium/large scale enterprise, including hardware/software firewalls and monitoring systems.* NTP protocol experience, including clients (chronyd, ntpd) and servers (chronyd, Meinberg, Microchip)* Familiar with protocol analyzer software (Wireshark) and able to interpret network traces* Knowledge in protocols, distributed technology, web technology standards (TCP-based protocols, Web technologies, Docker (or other container technologies, security technologies (i.e. PKI, AES, TLS, ...) are a strong asset.# **What we offer***We give you the freedom to be yourself. We are creating an environment of unique individuals – like you – with different perspectives on the financial industry and the world. A diverse and inclusive environment in which everyone’s voice counts and where you can reach your full potential.**We are committed to an inclusive and accessible recruitment process. If you require a reasonable accommodation related to accessibility during your application or interview, please contact* *[e-mail]* *or indicate this in your application.**Please note that this mailbox is not monitored for general recruitment enquiries and should only be used for accessibility or accommodation-related requests (for example related to vision, hearing or neurodiversity).**All requests are confidential and will not affect your candidacy.**Don’t meet every single requirement? At Swift, we are dedicated to building a workplace where people can bring their full selves and ideas to the team, so if you are excited about this role, we encourage you to apply even if you do not meet every single qualification.*