DDI Network Engineer

Posted 7 Days Ago
Be an Early Applicant
Toronto, ON, CAN
In-Office
70K-150K Annually
Senior level
Financial Services
The Role
Designs, engineers, and operates global DNS, DHCP, and IPAM services in a large enterprise environment. Responsibilities include DDI architecture, DNS and DHCP security, public and hybrid cloud DNS, IP and ASN management, CDN and traffic steering, network automation, troubleshooting, capacity planning, and merger or acquisition integration. The role also develops technical documentation, diagrams, scripts, and scalable solutions while collaborating with cross-functional teams and senior leadership.
Summary Generated by Built In

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.

Note to Recruiters: BMO does not accept unsolicited resumes from any source other than directly from a candidate. Any unsolicited resumes sent to BMO, directly or indirectly, will be considered BMO property. BMO will not pay a fee for any placement resulting from the receipt of an unsolicited resume. A recruiting agency must first have a valid, written and fully executed agency agreement contract for service to submit resumes.

Skills Required

  • 8+ years of network engineering experience
  • At least 5 years of experience with DDI platforms
  • Bachelor's degree in Engineering, Computer Science, or a related technical field
  • Expertise in DNS architecture, redundancy, and DNS fundamentals
  • Expertise in DHCP architecture, failover, and DHCP fundamentals
  • Hands-on IP management experience with IPv4 and IPv6
  • Experience with DDI operations and DNS/DHCP configuration management in a large enterprise
  • Experience with internal, external, intranet, and extranet DNS design and management
  • Experience with public IP and ASN management, including ARIN, IXPs, IRR, and RPKI
  • Experience with CDNs, application delivery, and web redirections
  • Experience with AWS, Azure, and scalable hybrid DNS architectures
  • Experience providing DNS solutions for mergers, acquisitions, and divestitures
  • Experience with DNS security, DNSSEC, DNS Firewall, SPF, DMARC, DKIM, and CAA
  • Advanced troubleshooting, reverse engineering, and root cause analysis skills
  • Advanced scripting skills in Python and/or Bash
  • Advanced knowledge of load balancers, GSLB, NTP, SSL/TLS, and traffic steering
  • Strong proficiency with Unix/Linux operating systems
  • Strong proficiency with SOAP and/or RESTful APIs for network automation
  • Knowledge of routing, NAC, IDS/IPS, VPN, firewalls, proxies, SDA, SD-WAN, and SASE
  • Understanding of data structures, algorithms, and MySQL fundamentals
  • Excellent verbal and written communication skills
  • Ability to create technical documentation and network diagrams
  • Banking or finance experience
  • DDI certifications and CCNA or CCNP
  • Audit and compliance experience with regulatory bodies
  • Proficiency with SIEM platforms such as Elastic ELK or Splunk
  • Vulnerability management experience
  • Familiarity with ITIL, ITSM, TOGAF, SDLC, release management, and project management methodologies

BMO Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about BMO and has not been reviewed or approved by BMO.

  • Parental & Family Support — Paid parental leave up to 16 weeks at full pay for all new parents, plus up to $20,000 for adoption, surrogacy, and fertility, and 10 days of paid backup childcare indicate robust family support. These elements stand out within BMO’s U.S. package.
  • Retirement Support — A 401(k) design combining a core employer contribution with dollar-for-dollar matching up to a set portion of pay, plus immediate vesting on match and employee contributions, signals strong retirement funding. The core contribution’s three-year vesting is clearly defined.
  • Leave & Time Off Breadth — Vacation accrual scales with grade and service, alongside 9–10 paid holidays and additional paid time off buckets (bereavement, school activities, civic duties, blood donation, volunteering). This breadth offers multiple avenues for time away beyond standard vacation.

BMO Insights

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The Company
HQ: Toronto, Ontario
51,885 Employees

What We Do

At BMO, banking is our personal commitment to helping people at every stage of their financial lives. The truth is, people’s needs change: so we change too. But we never change who we are. Which means we’ll never waiver from providing our customers the best possible banking experience in the industry. Our incredible team of over 46,000 people is just the tip of the iceberg. You should get to know us. We’re here to help.

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