python backend engineer jobs in Calgary

Apptad Inc in Calgary, AB is seeking a Java Developer to join our team and help deliver key initiatives. You will be a solid Java programmer with strong design and implementation fundamentals, collaborating with an energetic team on bleeding-edge projects using Java, Spring (Boot, MVC, Data, Security) and modern microservices.The role emphasizes designing...

Design, implement, and refine 3D game and simulation features using Panda3D.Develop custom tools and gameplay systems that provide flexibility and scripting capabilities.Collaborate with developers, artists, and researchers to translate project requirements into efficient and maintainable code.Optimize application performance across diverse hardware...

Miratech is seeking a Senior AI Engineer with strong Python experience and expertise in LangGraph and LangChain to join our US healthcare client. You will help build and enhance an enterprise AI platform enabling intelligent workflows, conversational experiences, and automation across multiple business functions. You will design, implement and optimize AI...

A leading technology company in Canada is seeking a Mid-Senior level Backend Developer to join their fully remote engineering team. You will be responsible for designing and maintaining Python-based services, managing databases, and ensuring system reliability. The ideal candidate has 3-5 years of backend experience, strong knowledge of AWS and RabbitMQ, and...

The Capacity Modeling team ensures Aff**irm can safely handle forecasted traffic—especially during peak sales events—by translating demand forecasts into concrete, testable capacity plans. You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and...

The Ledger Engineering team enables rapid financial product innovation by providing an audit-grade ledger platform that ties ambitious company growth to a highly regulated industry's real-world accounting controls. We are passionate about building robust, fault-tolerant, highly scalable systems that enable us to be on-time and precisely accurate in every...

Overview StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision. With 465 billion automated optimizations per second, the AI‐powered StackAdapt Marketing Platform seamlessly connects brand and performance marketing to drive measurable results across the entire customer journey. What...

At affirm, 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. Affirm's engineering team is building a large-scale, fault-tolerant, and global infrastructure that is shared across multiple financial products, merchants, and vendors. Ensuring...

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.The Streaming team at Affi is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validation. We...

At Affim, 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. As we build Affim's advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

Python and PySpark expertise define this Ottawa-based contract for a Data Engineer supporting an existing customer remotely. Convert code and optimize nightly ETL pipelines. LeverageTek seeks a Data Engineer for a five-month contract with an Ottawa-based customer. The work requires intermediate to senior hands-on experience with Apache Spark, PySpark, and...

As we build Affirms advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for consumer experiences. Search is one of the highest impact surfaces, and we are building a new team that will own not just the recommendations and search experiences, but also explore...

Build autonomous-agent evaluations remotely with OpenClaw, backend engineering, and AI automation experience on a flexible freelance schedule. Outlier is seeking contributors to help train large language models as proactive, multi-step agents. The work focuses on architectural workflows, live system interactions, and detailed technical feedback. Applicants...

At Affirms 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. As we build Affirms advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

Python and PySpark expertise define this Ottawa-based contract for a Data Engineer supporting an existing customer remotely. Convert code and optimize nightly ETL pipelines.LeverageTek seeks a Data Engineer for a five-month contract with an Ottawa-based customer. The work requires intermediate to senior hands-on experience with Apache Spark, PySpark, and...

Python AI evaluation engineering for Turing supports preference data, rubric design, and quality-focused model development. This fully remote contract emphasizes clear technical judgment.Turing seeks an engineer experienced with Python pipelines or TypeScript codebases. You will shape evaluation criteria, review preference data, and turn technical findings...

A tech development agency is seeking a .NET Developer to build backend systems and APIs while collaborating with frontend teams. The ideal candidate should have strong experience with .NET and C#, knowledge of RESTful APIs, and database management skills. This position offers remote work options and the opportunity to work on diverse projects across various...

A culture and arts platform is seeking a Mid-Senior Back End Developer in Ottawa to enhance its API for the Amuse platform. Candidates should have experience with Go or equivalent languages, and a knack for data analytics and GIS applications. This fully remote role offers equity, generous vacation, and collaborative team dynamics. Join us to enrich the...

Outlier is offering a freelance, remote OpenClaw Agent Builder role in Canada, paying up to $50 USD/hr with weekly payments. You'll help shape autonomous agents like OpenClaw by building modular, production-grade software that handles data parsing, logic processing, and reporting. The work supports multi-turn interactions in live environments and offers...

Outlier is inviting skilled contributors to help shape autonomous agents like OpenClaw. This freelance, remote role offers up to $50 USD per hour with weekly payments and the freedom to choose your schedule. Ideal candidates bring backend engineering or AI automation experience, with a track record in building production-grade systems and delivering clear,...