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Adastra Corporation
Senior Back-end EngineerAdastra Corporation • Winnipeg, Canada
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Senior Back-end Engineer

Senior Back-end Engineer

Adastra Corporation • Winnipeg, Canada
9 days ago
Job type
  • Full-time
Job description
Overview We are looking for a Senior Back‑end Engineer to design and build scalable, secure, and high‑performance backend systems that power modern SaaS applications. In this role, you will lead the architecture and development of .NET‑based microservices, define APIs that align with frontend workflows, and contribute to cloud‑native solutions on Azure. You will work closely with cross‑functional teams to deliver reliable backend services that support real‑time user experiences, AI‑driven capabilities, and enterprise‑grade platforms.

Primary Location:

Across Canada or USA

Work Model:

Fully Remote

Employment Type:

Contractor

Vacancy Status:

New

RESPONSIBILITIES

Design and implement scalable backend architectures supporting frontend SaaS applications using .NET microservices

Define and maintain API contracts aligned with frontend workflows and UI data requirements

Lead the design of microservices for knowledge base management, agent configuration, integrations, and chat services

Architect and implement secure authentication and authorization services using enterprise identity solutions

Build high‑availability REST and event‑driven APIs to support real‑time user interactions

Design and maintain Azure‑based cloud infrastructure including App Services, API Management, Service Bus, and storage solutions

Develop Python‑based services for AI model orchestration, data processing, and retrieval‑augmented generation pipelines

Implement scalable services for conversation history and context management

Establish CI/CD pipelines and DevOps practices for microservices deployment

Ensure system observability through logging, monitoring, and distributed tracing

Define backend performance optimization strategies and caching mechanisms

Mentor backend engineers and promote architectural best practices

QUALIFICATIONS, SKILLS & EXPERIENCE

Strong experience designing and building backend systems using .NET and microservices architectures

Experience designing and consuming REST and event‑driven APIs

Hands‑on experience with Azure cloud services and cloud‑native architectures

Proficiency in backend API design, scalability, and performance optimization

Experience with authentication and authorization in enterprise environments

Working knowledge of CI/CD pipelines and DevOps practices

Experience with Python for backend services, data processing, or AI‑related workloads

Ability to collaborate effectively with frontend engineers, architects, and product teams

Experience mentoring engineers or providing technical leadership

NICE TO HAVE

Experience working with AI platforms, model orchestration, or RAG pipelines

Familiarity with distributed systems observability tools and practices

Experience designing real‑time or conversational systems

Exposure to large‑scale SaaS or enterprise platforms

Experience with Retrieval-Augmented Generation (RAG) patterns for AI-driven applications

WHAT WE OFFER

Opportunity for advancement and career progression

Competitive compensation

Successful referral program

The opportunity to work with one of Canada’s 50 Best Managed Companies

Satisfaction of working for a reputable company

A flexible, dynamic, and diverse workplace

EQUAL OPPORTUNITY EMPLOYER In our commitment to promote fair and equitable treatment of all employees and applicants, Adastra Corporation provides equal employment opportunities for all individuals regardless of age, sex, disability, race, ethnic origin, citizenship, creed, sexual orientation, marital status, or any other ground as described in the Ontario Human Rights Code. In addition, accommodation will be provided during the hiring process. Adastra Corporation’s implementation and support of employment initiatives encourage diversified labour force participation and equal access to opportunities based on merit and performance.

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Senior Back-end Engineer • Winnipeg, Canada

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