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Added 30 mins ago
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ServiceNow AIOps Architect / Toronto, ON / Onsite - (FTE)
AceStack
Toronto, ON
- Full-time
Design and oversee integrations between ServiceNow and enterprise monitoring, observability, cloud, network, infrastructure, application performance, and security platforms.
Added 30 mins ago
GW
Enterprise Applications Specialist
Gowling WLG
Ottawa, ON
- $80,000 to $90,000 CAD / year
- Full-time
The Enterprise Applications Specialist is a senior technical resource responsible for the reliability, security, integration, and continuous improvement of the Firm’s enterprise application…
Added 30 mins ago
GW
Enterprise Applications Specialist
Gowling WLG
Toronto, ON
- $80,000 to $90,000 CAD / year
- Full-time
The Enterprise Applications Specialist is a senior technical resource responsible for the reliability, security, integration, and continuous improvement of the Firm’s enterprise application…
Added 30 mins ago
GW
Enterprise Applications Specialist
Gowling WLG
Waterloo, ON
- $80,000 to $90,000 CAD / year
- Full-time
The Enterprise Applications Specialist is a senior technical resource responsible for the reliability, security, integration, and continuous improvement of the Firm’s enterprise application…
Added 30 mins ago
MI
Privacy Impact Assessment ( healthcare) 7+years of experience
Maarut Inc
Toronto, ON
- Contract
Holds an undergraduate or graduate degree in health, policy, IT, security, law or a related discipline
Added 30 mins ago
GT
Firewall Security Specialist
Global Technical Talent, an Inc. 5000 Company
Toronto, ON
- $90 to $95 CAD / hour
- Contract
The IT Security Delivery Specialist is responsible for provisioning security rules in support of business objectives while following the client's standards across on-premises and cloud…
Added 30 mins ago
GW
Enterprise Applications Specialist
Gowling WLG
Hamilton, ON
- $80,000 to $90,000 CAD / year
- Full-time
The Enterprise Applications Specialist is a senior technical resource responsible for the reliability, security, integration, and continuous improvement of the Firm’s enterprise application…
Added 45 mins ago
S
OH Lead Sarnia Refinery
Shell
Sarnia, ON
- Full-time
…legislation as well as being customer centric. You’ll provide specialist occupational health nursing input and professional leadership. This will be through leveraging the Shell Health core…
Added 1 hour ago
AI
System & API Gateway Support Specialist
Aptino, Inc.
ON · Ontario, Canada
- Contract
Collaborate with application, infrastructure, network, middleware, security, and API teams.
Added 1 hour ago
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System Configuration Specialist / Spécialiste en configuration de systèmes (CS002)
Potenco
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
Reporting to the Regional Installation Manager, the System Configuration Specialist plays a key role in supporting Our Client's operations by configuring, troubleshooting, and maintaining…
Added 1 hour ago
MC
Senior Support Specialist
MSP Corp
Kingston, ON
- Full-time
As we continue to grow, we are looking for a Senior Support Specialist to join our MSP Corp team.
Added 1 hour ago
MC
Senior Support Specialist
MSP Corp
Ottawa, ON
- Full-time
As we continue to grow, we are looking for a Senior Support Specialist to join our MSP Corp team.
Added 1 hour ago
MC
Senior Support Specialist
MSP Corp
Toronto, ON
- Full-time
As we continue to grow, we are looking for a Senior Support Specialist to join our MSP Corp team.
Added 1 hour ago
R&
IT - Security Specialist IV
Robertson & Company Ltd.
Toronto, ON
- Contract
Robertson is seeking a skilled IT - Security Specialist IV to join our client in support of an existing vacancy.
Added 1 hour ago
GW
Enterprise Applications Specialist
Gowling WLG
Vancouver, BC
- $80,000 to $90,000 CAD / year
- Full-time
The Enterprise Applications Specialist is a senior technical resource responsible for the reliability, security, integration, and continuous improvement of the Firm’s enterprise application…
Added 1 hour ago
Information Technology (IT) Support Specialist
AirSprint
Calgary, AB
Troubleshoot network issues, including WAN, LAN, routers, firewalls, and security, with guidance from the Technology Support Supervisor.
Added 1 hour ago
Staff Engineer, Infrastructure Solutions (12 month contract)
EQ Bank | Canada's Challenger Bank
Toronto, ON
…infrastructure strategies and roadmaps with a strong emphasis on network engineering initiatives. This role will involve finalizing designs and technical implementations that align with the…
Added 2 hours ago
IC
Network Security Engineer
Infotek Consulting Inc.
Toronto, ON
- $85 to $96 CAD / hour
- Contract
We are looking for an experienced IT Security Specialist to support enterprise firewall security, policy implementation, and application deployments across on-premises and cloud…
Added 2 hours ago
IS
IT Specialist
iN STUDIO
Toronto, ON
- Full-time
● Support our Unifi stack across network, access control, security and storage
Added 2 hours ago
TI
Security Specialist
TekStaff IT Solutions
Toronto, ON · Greater Toronto Area, Canada
- Contract
TekStaff's Client has a current vacancy for a Security/Network Specialist
Added 2 hours ago
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Spécialiste IA et automatisation de processus
EXFO
Quebec, QC · Greater Quebec City Metropolitan Area
- Full-time
EXFO is a global leader in intelligent network test, monitoring and analytics solutions. With more than 2,000 employees across 25+ countries, we develop hardware and software solutions that…
Added 2 hours ago
AI
Airport Applications Specialist
Avanciers Inc.
Toronto, ON
- $18 to $20 CAD / hour
- Contract
Coordinate with airport stakeholders, vendors, infrastructure, network, security, and project teams.
Added 2 hours ago
IO
Inspection Specialist
Imperial Oil
Nanticoke, ON
- Full-time
…professionally, with benefits built on our core categories of health, security, finance, and life. Imperial Oil has been recognized as one of Canada’s and Alberta’s top employers (2024) as…
Added 3 hours ago
AS
IT Procurement Project Manager
Alquemy Search & Consulting
Calgary, AB
- Contract
…Enterprise Architects, Infrastructure Managers, Information Security Officers, and software leads to uncover, synthesize, and structure complex architectural, security, and operational…
Added 3 hours ago
AI
System & API Gateway Support Specialist
Aptino, Inc.
ON · Ontario, Canada
- Contract
Collaborate with application, infrastructure, network, middleware, security, and API teams.

Aptino, Inc.

System & API Gateway Support Specialist

ON, Canada
Ontario, Canada, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 26, 2026
Posting language: English
Posted: Oct 27, 2026

Original job description

WE’RE HIRING | System & API Gateway Support Specialist

Location: Toronto, ON, Canada

Work Model: On-site 4 days per week - mandatory

Interview: Face-to-face interview required (L1 and/or CI)

Looking for an experienced System & API Gateway Support Specialist!

We are seeking a skilled technical support professional with strong hands-on experience in API Gateway platforms, enterprise application support, troubleshooting, and production operations. The ideal candidate will ensure the stability, availability, security, and performance of critical API services across production and non-production environments.

Key Responsibilities:

Provide day-to-day technical and operational support for enterprise systems and API Gateway platforms.
Support API consumers with onboarding, integration, connectivity, testing, deployment, and post-production activities.
Troubleshoot API connectivity, authentication and authorization, configuration, performance, latency, and service availability issues.
Manage SSL/TLS certificates, certificate chains, keystores, truststores, and mutual TLS (mTLS) configurations.
Use Splunk and Dynatrace for log analysis, application monitoring, performance troubleshooting, alerts, and root-cause investigation.
Coordinate production incidents, escalations, stakeholder communication, and resolution across technical teams.
Collaborate with application, infrastructure, network, middleware, security, and API teams.
Maintain operational documentation, runbooks, troubleshooting guides, and support procedures.
Coordinate vulnerability remediation and support scheduled releases and production implementations.

Required Skills & Experience:

✅ Strong experience in enterprise application, middleware, API, or production support.

✅ Hands-on experience with API Gateway / API Management platforms.

✅ Strong knowledge of REST APIs, HTTP/HTTPS, and web-based integrations.

✅ Experience troubleshooting authentication, authorization, and API connectivity issues.

✅ Solid understanding of SSL/TLS, digital certificates, certificate chains, keystores, truststores, and mTLS.

✅ Hands-on experience with Splunk and Dynatrace.

✅ Strong incident management, troubleshooting, and stakeholder communication skills.

✅ Experience supporting production and non-production environments in large enterprises.

Nice to Have:

Experience with IBM products and technologies in API, middleware, or integration environments.
Financial services or large enterprise experience.
Knowledge of ITIL Incident, Problem, and Change Management.
Familiarity with vulnerability management and security remediation.

📩 Interested or Know Someone Suitable?

If this opportunity matches your experience, please send me your updated resume via LinkedIn DM or share this post with your network.

#Hiring #Capgemini #APIgateway #APIsupport #Splunk #Dynatrace #ITJobs #TorontoJobs #ContractJobs #ProductionSupport #Middleware #TechJobs

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More about this job

Responsibilities

Provide operational support for enterprise systems and API Gateway platforms, including consumer onboarding, integrations, deployments, and production activities. Troubleshoot API and certificate issues, monitor services with Splunk and Dynatrace, coordinate incidents and releases, and maintain support documentation.

Requirements

Candidates need hands-on experience in enterprise application, middleware, API, or production support, including API Gateway platforms and REST-based integrations. They should be proficient in troubleshooting authentication, connectivity, and performance issues; managing SSL/TLS and mTLS configurations; and using Splunk and Dynatrace.

Skills

API Gateway Support
Enterprise Application Support
Production Support
REST APIs
HTTP/HTTPS
API Integration
Authentication and Authorization
SSL/TLS
Digital Certificates
Keystores and Truststores
Mutual TLS
Splunk
Dynatrace
Incident Management
Troubleshooting
Stakeholder Communication

Visa sponsorship

Not detected in the job text

Keywords

API Gateway
API Management
Enterprise Application Support
Middleware
Production Support
REST APIs
HTTP/HTTPS
Web Integrations
Authentication
Authorization
API Connectivity
SSL/TLS
Digital Certificates
Certificate Chains
Keystores
Truststores
Mutual TLS
Splunk
Dynatrace
Log Analysis
Application Monitoring
Incident Management
Root-Cause Analysis
Vulnerability Management
ITIL
Change Management
Problem Management
Production Releases
IBM Technologies
Financial Services

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