DDI Network Engineer

BMO; Toronto; On-site; CAD 70,000 - 150,000; Full time

Benefits offered by this job

Health insurance

Tuition reimbursement

Life insurance

Retirement savings plan

Job summary

BMO Financial Group in Toronto seeks an experienced Senior Network Engineer to design, deploy, and run DNS/DHCP/IPAM services across global networks. You will translate complex requirements into scalable, reliable infrastructure and collaborate with cross-functional teams to ensure robust DNS/DHCP operations.

The role demands 8+ years in network engineering with 5+ years on DDI platforms, strong DNS/DHCP architecture, scripting, and cloud experience, with a focus on security and performance in

Qualifications

• 8+ years of network engineering experience with 5+ years on DDI platforms (Infoblox, BlueCat, Diamond IP).
• Bachelor’s degree in Engineering, Computer Science, or related field.

Skills

DNS architecture

DHCP architecture

Unix/Linux

Python/bash scripting

Network automation (SOAP/REST)

BGP/OSPF/EIGRP

DNS/DHCP configuration management

Public Cloud design (AWS/Azure)

Load balancers (LTM/GTM)

DNS security (DNSSEC, SPF, DKIM)

Education

Bachelor’s degree in Engineering/CS

Tools

Infoblox

BlueCat

Kea

Job description

Application Deadline:

10/29/2026

Address:

4100 Gordon Baker Road

Job Family Group:

Technology

DDI Engineering under the Network Engineering & Design division is responsible for the oversight, management, design, and engineering of the bank’s core network services (DNS, DHCP, IPAM) globally.

Requirements:

• 8+ years of network engineering experience with a minimum 5 years on DDI platforms (Infoblox, BlueCat, BT/Cygna Labs Diamond IP - an asset).
• Bachelor’s degree in Engineering, Computer Science, or a related technical field.

Technical Requirements:

• Expertise in DNS architecture and redundancy - ISC BIND & Microsoft DNS.
• Expertise in DHCP architecture and failover - ISC DHCP & Kea.
• Exceptional knowledge in DNS fundamentals and ability to differentiate between querying, forwarding, recursion, delegation, zone transfers and caching mechanisms.
• Exceptional knowledge in DHCP fundamentals – bootp, PXE, vendor options, client classes.
• Hands-on experience in IP management (IPv4 & IPv6 ), capacity planning , subnet aggregation, route summarization, and brand (IP & domain) protection measures.
• Hands-on experience with day-to-day DDI operations and DNS/DHCP configuration management in a large enterprise environment.
• Experience with Intranet (internal) & Extranet DNS design – vendor / B2B / peer networks.
• Experience with Public (external) DNS management – domain registrars, ownership transfers.
• Experience with Public IP & ASN management – regional registries (ARIN), IXPs, IRR, RPKI.
• Experience with CDNs (Akamai, Cloudflare), application delivery, and web (301/302) redirections.
• Experience with Public Clouds (AWS, Azure) and designing scalable Hybrid DNS architectures.
• Experience in providing DNS solutions in case of mergers, acquisitions, and divestitures ( M&A ).
• Experience with DNS security - DNSSEC, DNS Firewall, email (SPF, DMARC, DKIM), CAA.
• Advanced troubleshooting, reverse engineering, and root cause analysis (RCA) skills.
• Advanced scripting skills in Python and/or bash - telemetry & network tool integration experience.
• Advanced knowledge in Load Balancers (LTM /GTM ), GSLB , NTP, SSL/TLS, traffic steering.
• Strong proficiency in Unix/Linux operating systems – cronjobs, logging, hardening techniques.
• Strong proficiency in network automation using SOAP and/or RESTful APIs.
• Adept with routing protocols ( BGP , OSPF, EIGRP), NAC (DHCP snooping, 802.1x, MAC auth), IDS/IPS, IPSEC VPN, Firewalls ( NAT , PAT), Proxy (forward/reverse), SDA, SDWAN, and SASE.
• Practical understanding of data structures, algorithms , and database ( MySQL ) fundamentals.
• Excellent communication (verbal & written) skills with ability to create technical documentation (SOP, BCP, deploy guides, conventions/templates) and network diagrams.
• Analytical ability to decipher complex technical requirements and convey subsequent solutions in an effective manner to cross-functional teams & senior leadership.
• Willingness to learn, adapt to new processes , and deliver projects within specified deadlines.

Nice-to-Have:

• Banking / Finance experience a big plus.
• DDI Certifications and CCNA/CCNP.
• Audit & Compliance experience with internal and/or external regulatory bodies.
• Proficiency with SIEM platforms (Elastic ELK, Splunk) and vulnerability management.
• Familiarity with ITIL , ITSM, TOGAF, SDLC , Release Management, PM (Agile/Scrum, Waterfall).

Salary** :**

$70,000.00 - $150,000.00

Pay Type:

Salaried

The above represents BMO Financial Group’s pay range and type.

Salaries will vary based on factors such as location, skills, experience, education, and qualifications for the role, and may include a commission structure. Salaries for part-time roles will be pro-rated based on number of hours regularly worked. For commission roles, the salary listed above represents BMO Financial Group’s expected target for the first year in this position.

BMO Financial Group’s total compensation package will vary based on the pay type of the position and may include performance-based incentives, discretionary bonuses, as well as other perks and rewards. BMO also offers health insurance, tuition reimbursement, accident and life insurance, and retirement savings plans. To view more details of our benefits, please visit: https://jobs.bmo.com/global/en/Total-Rewards

About Us

At BMO we are driven by a shared Purpose: Boldly Grow the Good in business and life. It calls on us to create lasting, positive change for our customers, our communities and our people. By working together, innovating and pushing boundaries, we transform lives and businesses, and power economic growth around the world.

As a member of the BMO team you are valued, respected and heard, and you have more ways to grow and make an impact. We strive to help you make an impact from day one – for yourself and our customers. We’ll support you with the tools and resources you need to reach new milestones, as you help our customers reach theirs. From in-depth training and coaching, to manager support and network-building opportunities, we’ll help you gain valuable experience, and broaden your skillset.

To find out more visit us at https://jobs.bmo.com/ca/en.

BMO is committed to an inclusive, equitable and accessible workplace. By learning from each other’s differences, we gain strength through our people and our perspectives. Accommodations are available on request for candidates taking part in all aspects of the selection process. To request accommodation, please contact your recruiter.