java backend engineer jobs in Calgary

Innvenza Solutions in Calgary, Alberta, is seeking a senior backend engineer to own the backend systems that define how AI interacts with production environments. You will write Node.js and TypeScript, design APIs, and work on MCP-based tools and agent workflows, shaping the boundaries between AI and real systems. You will join a small senior team,...

Outlier is seeking OpenClaw Agent Builder contractors to help shape autonomous agents. This remote, freelance role offers up to $50 USD/hr with flexible, non-mandatory hours and weekly payments. Contributions support AI development and multi-step agent orchestration.Ideal candidates have 2+ years in backend engineering or AI automation, with a track record...

Outlier is seeking skilled contributors to build OpenClaw-like autonomous agent components. Remote freelance role with pay up to $50 USD/hour. You can set your own schedule, typically 5–10 hours/week, potentially up to 40 hours. Payments are made weekly and via multiple payment methods.Ideal candidates have 2+ years in backend engineering or AI automation...

Affirm, Inc. is seeking an experienced Capacity Modeling Engineer to own quarterly goals for the team and lead engineers through ambiguity while delivering capacity plans for peak sales events. You will translate demand forecasts into resource settings across regions and environments. You will collaborate with product, design and analytics, establish...

A leading digital transformation consulting firm in Calgary seeks a Senior Software Developer to join their team. The role involves designing and developing services in Java and JavaScript within a diverse environment. Candidates should have 3-7+ years of relevant experience and be proficient in various technologies including Core Java, Spring Boot, 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 backend AI infrastructure remotely with Affirm, using Python or Kotlin, distributed systems, and production LLM technologies across Canada. As a Senior Software Engineer on Affirm’s AI Platform team, you will build the governed path for AI systems. You will design gateway, runtime, and evaluation services, while supporting secure scale across...

At Affrim, 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 Observability team builds the platform every Affrim engineer relies on to understand the behavior and performance of our systems. Our platform ingests 200+ TB/day of...

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...

At Affrim, 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 Observability team builds the platform every Affrim engineer relies on to understand the behavior and performance of our systems. Our platform ingests 200+ TB/day of...

Build backend AI infrastructure remotely with Affirm, using Python or Kotlin, distributed systems, and production LLM technologies across Canada. As a Senior Software Engineer on Affirm’s AI Platform team, you will build the governed path for AI systems. You will design gateway, runtime, and evaluation services, while supporting secure scale across...

Accelerate your career as a Backend Java Developer skilled in microservices and RESTful services, working in a hybrid model. Utilize your Kafka and PL/SQL proficiency to transform data management processes. Your collaboration with cross-functional teams will gather vital requirements to produce high-quality technical specifications. Mentorship and guidance...

Shape the future of banking as a Software Engineer focusing on Java and the MEAN stack. Contribute to development by creating robust APIs and microservices in an Agile setting. You will leverage your extensive experience to work on innovative applications that enhance client interaction. Engage in automating workflows, ensuring high code quality, and...

Accelerate your career as a Backend Java Developer skilled in microservices and RESTful services, working in a hybrid model. Utilize your Kafka and PL/SQL proficiency to transform data management processes. As part of this role, you will design and implement efficient microservices architectures. Your collaboration with cross-functional teams will gather...

$60 - $65 Grow your career with an innovative global bank in Mississauga, ON as aSenior Forward Deployed Java Engineer in Test (SDET) / Quality Engineering Architect to define, champion, and drive the global quality engineering strategy across multi-tier, high-throughput trading platforms. Contract role with strong possibility of extension and conversion to...

Upsun seeks a Backend Software Engineer to enhance our billing systems. Focus on backend service development in Go for complex billing integrations and ensure accuracy in customer invoicing. In this role, you will build and maintain the backend services for our billing platform. Your expertise will drive projects that handle revenue across multiple...

Overview Tucows is a remote-first backend engineering role for Canada, building open‐internet products across domains, Ting, and Wavelo. Responsibilities Design and develop secure, scalable, reliable, and efficient backend services using modern frameworks and tools. Collaborate with frontend developers to define clear and consistent API endpoints,...

Advance your technical skills with StackAdapt as a Software Engineer focused on backend development. This position allows you to build and optimize scalable micro-services in a collaborative environment. StackAdapt invites applications for a Backend Software Engineer role requiring over two years of relevant experience. You will focus on creating...

Earn Up To $50/hr as an OpenClaw Agent Builder Shape the future of autonomous agents like OpenClaw. Freelance, remote, up to $50 USD/hr. Weekly payments. Trusted by 10,000+ software engineers worldwide MIN EXP REQUIRED 2+ years PAY RATE Up to $50 USD/hr Earn Up To $50 USD/hr— Plus Additional Incentives Rates vary based on expertise and project...

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 validation We leverage existing open source technologies like Kafka, Flink, Schema registry and also build our own as needed As a member of our team you would spend time identifying and...