senior backend engineer python aws jobs in Toronto

The Streaming team at Affirm is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validationWe leverage existing open source technologies like Kafka, Flink, Schema registry and also build our own as neededAs a member of our team you would spend time identifying and...

Senior Consultant - Python Developer (Data Solutions & Analytics) Location: Toronto Other locations: Primary Location Only Date: Sep 8, 2026 Requisition ID: 1742084 At EY, we’re all in to shape your future with confidence. We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to...

Mecka AI is hiring a Senior Cloud Infrastructure Engineer to design, scale, and harden its AWS environment, focusing on networking and storage for global data ingestion and delivery. You will join the Platform Engineering & Infrastructure team as a senior IC, leading key projects and collaborating with ML, CV, and data teams. The role requires 6+ years in...

Ascendion is looking for a Lead Python Developer to innovate within our banking platform ecosystem. You will work with a talented team to architect and implement scalable solutions. In your role as a Senior Software Engineer, you will oversee feature delivery, ensuring quality and security. With a focus on Python and microservices, mentor junior engineers...

Job Description:Engineering and Architecture•Design, build, and maintain backend financial and payments systems flows (e.g., core banking, ACH, wire, card, and digital asset transaction processing).•Influence software architecture and lead design decisions for the Platform, with particular focus on payments and money-movement systems.•Develop, test,...

Job Description Toast is recruiting on behalf of this company for a Senior Software Engineer, AI to join their Engineering team in Toronto. They are looking for an experienced backend engineer who is excited to build and optimize LLM-powered systems that help users uncover meaningful business insights. Responsibilities Design, build, and maintain backend...

Become a pivotal Senior Software Developer focused on data engineering. Leverage your strong background in Python and AWS to create innovative data solutions in a hybrid setup. In this role, you will design and develop intricate data pipelines and transformation procedures to enhance organizational efficiency. You will provide mentorship to junior...

Senior Backend Engineer sought to build, ship, and maintain complex software projects using Elixir, Phoenix, and Postgres. Role involves API design, mentorship, and contributing to product improvements in a fully remote, async environment.

Leap Tools is seeking an experienced backend engineer to lead design and delivery of scalable backend systems for our AI-powered interior décor platform. You will mentor senior engineers, influence technical direction, and collaborate with product and engineering leaders to plan for growth.You will work in a remote-first environment with a strong ownership...

S'more About The TeamThe Production Scheduling Technology team builds and maintains the platform that powers how HelloFresh plans, sequences, and optimizes production across our operations. Our team has developed the first iteration of the next‑generation internal system with a planning engine that now automates the end‑to‑end planning process – a...

Become a key player at Feathery as a Senior Full Stack Engineer dedicated to developing AI-enhanced workflows and product capabilities. This role offers full ownership of features from conception to deployment in a growing tech environment. As part of the AI team, you will leverage your expertise to deliver innovative solutions that streamline insurance and...

Wipro Limited (NYSE: WIT, BSE: 507685, NSE: WIPRO) is a leading technology services and consulting company focused on building innovative solutions that address clients’ most complex digital transformation needs. Leveraging our holistic portfolio of capabilities in consulting, design, engineering, and operations, we help clients realize their...

TD is seeking an entry-level Cloud Network Engineer in Toronto to design, deploy, and support cloud networking across Azure, AWS and GCP. The role emphasizes automation using Terraform, Python, and Ansible and requires collaboration with cross-functional teams to deliver secure, scalable cloud networking solutions.The role focuses on building reusable IaC...

Senior Cloud Technical Account Manager , Enterprise Support AWS Applied AI Solutions (AAIS) is building toward a future where every business innovates with Amazon AI teammates. To get there, we build AI solutions that improve human capabilities and transform entire business functions. We create end-to-end products that surprise and delight out-of-the-box,...

Affirm is seeking a Senior Backend Engineer to set technical strategy for a distributed systems team building scalable backend services in Python or Kotlin. You will partner with product, design, and analytics to ensure sustainable, low-risk deliveries and own on-call operations.You will mentor engineers, define code review standards, and drive architecture...

At Affi, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.Marketing & Privacy Engineering (MPE) builds trusted, privacy-aware consumer web experiences and measurement systems that enable sustainable growth. Within MPE, the Marketing pillar...

Join MLSE as a Senior Software Engineer focused on driving software innovation through cloud infrastructure and developer tooling. Help build engaging fan experiences across sports and entertainment. This senior, hands-on engineering role requires extensive experience across software development and cloud platforms. You will design and enhance production...

## Senior AI EngineerApply: North York, Ontario: Toronto, Ontario: Waterloo, Ontario: Full time: Posted Today: JR00128210You are as unique as your background, experience and point of view. Here, you’ll be encouraged, empowered and challenged to be your best self. You'll work with dynamic colleagues - experts in their fields - who are eager to...

Senior Data Engineer Department: Development - Software Development Employment Type: Permanent - Full Time Location: Toronto Reporting To: Andrew Rawnsley Team and Role We’re looking for a Senior Data Engineer to help design and deliver scalable data solutions that power decision‑making across the organization. In this role, you’ll take ownership...

Build Java cloud services with strong DevOps expertise at Thomson Reuters in Toronto, using AWS, Spring Boot, and PostgreSQL within a hybrid model. As a Senior Software Engineer, you will design, deploy, and operate scalable cloud-native services. You will own solutions across delivery and production operations while improving reliability, deployment...