Senior Mainframe Engineer - Payments & Production Reliability
MainframeMaster
TD Securities offers a Sr. Mainframe Application Engineer position in Toronto to design, develop, deliver, and support high‑volume payment systems across mainframe and distributed components.
The role emphasizes reliability, performance, and security within a large, global technology team. We seek 5+ years in mainframe MVS/TSO/COBOL/JCL with Endevor, CA‑7, MQ and DB2/IMS, and the ability to lead complex initiatives in an Agile environment.
#J-18808-Ljbffr- ..., the focus is on improving application reliability throughout the release lifecycle. You will... ...on-call. The SRE team will own SLOs, production readiness, release gates, reliability practices... ...: Strong SRE and reliability engineering experience, including SLOs, SLIs, error...SeniorFull timeContract work
- ...Docebians around the world and help us reinvent the way people learn, because learning never stops. The Adventure Ahead As a Senior Product Engineer, you bring strong expertise in either backend or frontend engineering alongside the ability and willingness to work across...SeniorFull timeFor contractorsWork at officeWorldwide3 days per week
$150k - $185k per year
...We’re looking for a Manager, Site Reliability Engineering to lead 2 teams of 4-6 platform engineers... ...pipelines to high-availability, scalable production environments. This role is pivotal... ...Coach, mentor, guide, and motivate a senior team of cross-functional cloud platform...SeniorLong term contractFull timeRemote workFlexible hours$150k - $180k per year
...Software Engineer, Payments and Revenue Location: Toronto GTA (on-site) · Type: Full-... ...operations to replace manual workflows with reliable, auditable systems. What you'll do... ..., or similar is strongly preferred ~ Production backend and high-concurrency systems where...SuggestedFull time$153.82k - $277k per year
...thrive, we can’t wait to meet you. Site Reliability Engineers (SREs) at Braze are responsible for... ...discipline, and mature automation to our production environments. We specialize in... ...our customers' end-users daily. This Senior SRE role is specifically focused on supporting...SeniorPermanent employmentFull timeInternshipWork at officeLocal areaRemote workFlexible hoursRotating shift- ...belonging, collaboration, and accomplishment. Being a Senior Site Reliability Engineer at iManage Means… You are an engineer, a builder, and a... ...iManage is experiencing explosive growth in its flagship cloud product. We’re seeking senior software and systems engineers...SeniorFull timeWork at officeLocal areaRemote workWorldwideMonday to fridayFlexible hours
- ...driver's seat of the high-octane engine that powers Docebo’s... ...and force multiplier for our product and engineering teams, solving... ...DynamoDB, PostgreSQL, and MySQL. Reliability & Observability Guru: Deep understanding... ...with the hiring manager and a senior software engineer, where they’...SeniorLong term contractFull timeFor contractorsWork at officeWorldwide3 days per week
$140k - $182k per year
...global client base with operations throughout North America, Central America, Europe, Australia, and Japan. As one of our Senior Site Reliability Engineers, you will be 100% hands-on across infrastructure and software development. You will support and help inform the...SeniorFull time- ...because learning never stops. The Adventure Ahead As a Senior Product Engineer II, you bring deep expertise in backend engineering... ...deliver complete solutions. Your primary strength is building reliable backend systems, designing scalable APIs, and shaping cloud...SeniorLong term contractFull timeFor contractorsWork at officeImmediate startWorldwide3 days per week
$160k - $222k per year
...in town — we help them discover the best products from around the world to sell in their stores... ...come join ours. About The Role Our Engineering organization owns the software that makes... ...listen to the data; and iterate. As a Senior Software Engineer, Product Security, you'...SeniorWork at officeLocal areaRemote workMonday to friday3 days per week$130k - $180k per year
...provided) Our Platform is growing and we are looking to hire a Senior Site Reliability Engineer (SRE) / Cloud Engineer Our main Cloud Platform is... ...-level objectives that are instrumental in maintaining product reliability. Maintain and enhance version control systems...SeniorFull timeRemote workVisa sponsorshipWork visaFlexible hours- ...digital partner that combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions that deliver... ...real fixes. QUALIFICATIONS ~6+ years in SRE, platform reliability or observability engineering, with strong hands-on AWS experience...Full time
$140k - $155k per year
...on their LinkedIn profiles! This is a hands-on senior engineering role focused on improving production resilience, strengthening security, driving... ...practices that enable engineering teams to ship secure, reliable, and scalable software with confidence. You will help...SeniorRemote jobPermanent employmentFull timeFlexible hours- ...combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions... .... We’re looking for a Site Reliability Engineer to keep a shared observability... ...Hands-on experience running ClickHouse in production, including replication and Keeper quorum...Full time
- ...Summary We’re looking for an experienced Senior Product Designer to join AutoSync’s Consumer... ...filtering, and comparison to vehicle details, payment exploration, trade-in valuations,... ...workflows. You’ll partner with Product and Engineering to balance consumer needs with dealer...SeniorShift work
- ...growing our team and looking for contributors of all seniorities. Join Tenstorrent as a Staff Reliability Engineer and help define the reliability strategy behind... ...'ll drive reliability from architecture through production, partnering across hardware, software, and...Permanent employmentFull timeInternshipSecond job
$150k - $190k per year
...fintech company that has been simplifying payments in Canada since the early 2000s. We... ...outpacing the way we sell it. Our payment products span multiple rails, settlement models, and... ...increasingly sophisticated, with their own payments engineers and product teams who expect a technical...Full timeContract workTemporary workSummer workInternshipSummer holidayWork at officeLocal area$114.3k - $164.3k per year
...We’re looking for outstanding engineers with a passion for technology... ...and maintain Zynga’s core Payments platform, which enables flawless... ...existing services to improve reliability, scalability and to lower... ...collaboratively across teams to understand product/customer requirements and...Full timeLocal area- ...Docebians around the world and help us reinvent the way people learn, because learning never stops. ️ The Adventure Ahead As a Senior Product Engineer I at Docebo, you aren't just writing code; you are the architect of a world-class SaaS platform that empowers millions to...SeniorFull timeFor contractorsWork at officeWorldwide3 days per week
- ...because learning never stops. The Adventure Ahead As the Senior Product Engineer II , you bring expert-level proficiency in frontend... ...platform engineers to translate customer problems into intuitive, reliable experiences and clearly communicate technical and UX...SeniorLong term contractFull timeFor contractorsWork at officeImmediate startWorldwide3 days per week
$100k - $125k per year
...experienced and motivated Software Engineer to join our dynamic Site Reliability Engineering (SRE) team. As a Site Reliability... ...culture, the quality of our product and the capabilities of our people.... ...Tipalti Our tech teams are the engine behind our business. Tipalti’s tech...Full timeWork at officeFlexible hours$120k - $150k per year
...Operations team ensures the accuracy, reliability, and consistency of data and workflows... ...efficiency. The role will work closely with engineering, product, culinary, editorial, and business... ...for expansion, we are looking for a Senior Software Engineer with strong backend experience...SeniorFull timeCasual workManual laborWork at officeRemote workWork from homeFlexible hours2 days per week3 days per week$110k - $130k per year
..., and it defines our culture. About the job As a Site Reliability Engineer II on the Serving Platforms team within Infrastructure Engineering... ...in the team's on-call rotation to support critical production systems and ensure operational resilience. Develop and maintain...Full timeWork at officeLocal areaWorldwideFlexible hours2 days per week$129.5k - $178k per year
...in town — we help them discover the best products from around the world to sell in their stores... ...investing with us. As a product engineer on the team, you'll own features end-to-end... ...and product experiences that stay fast and reliable as our advertiser base grows, and...Full timeWork at officeLocal areaRemote workMonday to friday3 days per week- ...sized organizations in Canada/US. We are currently hiring a Senior Mainframe Developer - Application Design - Hybrid for our consulting client... ...for full System Development Life Cycle Participate in production support Provide Solution Delivery Methodology artifacts associated...MainframeSeniorFull timeContract workInternship
$172k - $229k per year
...looking for a Staff Software Engineer to set and drive our company-wide... ..., shipping, and operating reliable software. This is a high-impact... ...will work across engineering, product, infrastructure, and customer-... ...and will never ask for payment, banking details, or sensitive...Long term contractPermanent employmentFull timeFor contractorsWork at officeLocal areaWork from homeFlexible hours- ...world-class investors including Canaan, BrandProject, Real Ventures, D1 Capital, and Upper90. About the team Product & Design is Clutch’s creative engine. We solve some of the hardest problems in the business: improving the customer experience, building internal tools...SeniorFull timeInternshipManual labor
$120k - $170k per year
...seeking a highly skilled and motivated Senior DevOps Engineer to join our dynamic team and play a... ...and drive improvements that increase reliability and operational efficiency; Write... ...hybrid-flexible approach to support your productivity and work-life balance. If you’re...SeniorFull timeWork at officeLocal areaFlexible hours- ...Job Description The SRE Role · SREs are engineers with the right mix of knowledge and skills in... ...and observation to entire systems to improve reliability, performance and operability). · We constantly evaluate products and services before and after production releases...Full time
- ...’t wait to get to know you! The Work The AV & Event Production Engineer is responsible for end-to-end planning, preparation, technical... ..., and audience engagement skills to deliver professional, reliable, and inclusive experiences. Working closely with event owners...Hourly payPermanent employmentFull timeInternshipWork at office
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Mainframe Engineer - Payments & Production Reliability. Be the first to apply!

