Back End Developer (AI Infrastructure)

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Calgary to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices that handle real-world traffic at scale. This is a fully remote, flexible contract role. Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things that matter. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 10–40 hours/week What You'll Do Design, develop, and maintain robust back end services, APIs, and data pipelines Build scalable, high-performance server-side architecture to support AI training and inference workloads Write clean, well-documented, and testable code following engineering best practices Integrate with databases, message queues, cloud services, and third-party APIs Optimize system performance, reliability, and scalability as usage grows Collaborate asynchronously with distributed teams of engineers, researchers, and product leads Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions Work independently on task-based and project-based assignments on your own schedule Who You Are Proficient in one or more back end languages — Python, Go, Java, Node.js, Rust, or similar Solid understanding of RESTful API design, microservices architecture, and distributed systems Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.) Comfortable working with cloud platforms such as AWS, GCP, or Azure Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes) Strong problem-solving skills and the ability to debug complex systems independently Self-motivated, reliable, and effective when working asynchronously Clear communicator who can document decisions and collaborate across time zones Nice to Have Experience building infrastructure for machine learning or AI systems Familiarity with data processing frameworks (Apache Kafka, Spark, Airflow, or similar) Background in performance optimization, caching strategies, or high-throughput systems Knowledge of authentication, authorization, and security best practices Experience with serverless architectures or event-driven design patterns Contributions to open-source projects or a strong portfolio of personal/professional work Why Join Us Work on cutting-edge AI infrastructure projects alongside leading research labs Fully remote and flexible — set your own hours and work from anywhere Freelance autonomy with access to meaningful, technically challenging work Build systems at the intersection of software engineering and artificial intelligence Collaborate with a global network of talented engineers and researchers Potential for ongoing work and contract extension as new projects launch

Design and maintain robust back end services, APIs, and data pipelines to support AI training and inference workloads. Collaborate asynchronously with distributed teams to optimize system performance, reliability, and scalability.

Proficiency in back end languages like Python or Go and experience with cloud platforms and containerization is required. Candidates should have a solid understanding of distributed systems and relational or NoSQL databases.

• Flexible hours • Remote work • Freelance autonomy

• Microsoft AzurePreferred
• KubernetesPreferred
• Node.jsPreferred
• GoPreferred
• RedisPreferred
• PostgreSQLPreferred
• DockerPreferred
• RustPreferred
• Amazon Web ServicesPreferred
• MongoDBPreferred
• JavaPreferred
• Google CloudPreferred
• PythonPreferred

Identified from the job description. Confirm important requirements above.

• Python
• Go
• Java
• Node.js
• Rust
• RESTful API Design
• Microservices Architecture
• Distributed Systems
• PostgreSQL
• MongoDB
• Redis
• AWS
• GCP
• Azure
• Docker
• Kubernetes

• Software
• Technology
• Engineering
• Data & Analytics
• Science & Research

Minimum experience

2+ years

Apply by

Sep 4, 2026

Posting language

English

Working hours

40 hours per week

Location requirements

Country, Calgary, Alberta, Canada

Seniority

Entry level