Senior Software Developer I

Dahrouge Geological Consulting Ltd.; Edmonton; On-site; CAD 120,000 - 180,000; Full time

Job summary

Dahrouge Geological Consulting Ltd. in Edmonton seeks a senior software lead to design architectures, own delivery, and mentor a growing team in a geoscience-focused environment.

You will drive secure, observable cloud services using React, TypeScript, Python, FastAPI, and PostgreSQL, aligning technical decisions with business needs.

The role requires 8+ years of experience, strong DevOps mindset, and the ability to explain trade-offs to non-technical stakeholders.

Qualifications

• Bachelor’s degree in Computing Science, Software Engineering, or related field, or equivalent practical experience.
• 8+ years of professional software development experience, including 2+ years as a senior or lead owning production systems.
• Experience taking over or rewriting an existing codebase in stages while it remains in use.
• Certifications in cloud platforms or machine-learning specializations are assets.
• Knowledge of React/TypeScript, Python, PostgreSQL, and cloud infrastructure.

Responsibilities

• Design and document the system architecture for assigned products, recording key decisions and trade-offs.
• Plan and lead staged rebuilds of existing products so current clients see no disruption or data loss.
• Select tools, frameworks and patterns that balance delivery speed, cost and long-term maintainability.
• Work with the lead developer to shape the technical roadmap and identify technical debt worth paying down.
• Translate business requirements into technical designs, estimates and clear stories with acceptance criteria.

Skills

React

TypeScript

Python

FastAPI

OpenTelemetry

Azure

CI/CD

Agile/Scrum

Code reviews

AI coding assistants

Education

Bachelor’s degree in Computing Science, Software Engineering, or related field

Tools

Next.js

Docker

GitHub Actions

PostgreSQL

OAuth 2.0/OpenID Connect

Azure App Service

Container Apps

Key Vault

Job description

Responsibilities

• Design and document the system architecture for assigned products, recording key decisions and trade-offs.
• Plan and lead staged rebuilds of existing products so current clients see no disruption or data loss.
• Select tools, frameworks and patterns that balance delivery speed, cost and long-term maintainability.
• Work with the lead developer to shape the technical roadmap and identify technical debt worth paying down.
• Translate business requirements into technical designs, estimates and clear stories with acceptance criteria.

Product Delivery & Ownership

• Own large features and projects from design through to production, delivered on schedule and to agreed quality.
• Contribute to sprint planning, estimation and retrospectives, helping keep the team’s delivery predictable.
• Work with stakeholders and non-technical colleagues in various context and complexities to clarify requirements and explain trade-offs.
• Ensure every release is tested, reviewed and documented before it reaches clients.
• Monitor delivered features after launch and act on feedback, bugs and performance issues.

Security, Reliability & Observability

• Apply secure development practices across products, including threat modelling and secrets management.
• Design and maintain authentication and access control so each client’s data stays separate.
• Ensure every service has logging, monitoring, alerting and backups, with tested recovery procedures.
• Maintain CI/CD pipelines and Azure cloud infrastructure, keeping hosting costs under control.
• Lead the response to production incidents, identify root causes and put preventive fixes in place.
• Create SOPs to maintain coding standards, review guidelines and best practices.
• Conduct thorough code reviews that raise the quality of the team’s code, including AI-assisted code.
• Mentor junior developers through pairing, feedback and progressively larger assignments, and track their growth.

Position Requirements

Education

• Bachelor’s degree in Computing Science, Software Engineering, or a related field, or equivalent practical experience.

Experience

• 8+ years of professional software development experience, including 2+ years as a senior or lead developer owning production systems.
• Experience taking over or rewriting an existing codebase in stages while it remains in use.

Designations & Certifications

• None required.
• Certifications in cloud platforms (e.g., Microsoft Azure, AWS, or Google Cloud) or machine-learning specializations are considered an asset.

Knowledge, Skills & Abilities

• Expert React and TypeScript, including Next.js (App Router) and state management for both server and client state.
• Strong Python for backend services: FastAPI or similar, async, pydantic, strict typing and pytest.
• PostgreSQL in depth: schema design, migrations, query performance and row-level security.
• Authentication: OAuth 2.0 and OpenID Connect, Microsoft Entra ID, and access control for many clients in one system.
• Application security: secure development practices, threat modelling and secrets management.
• Microsoft Azure in production: Container Apps or App Service, managed PostgreSQL, Key Vault, networking and cost management.
• Observability: structured logging, metrics and tracing (OpenTelemetry, Azure Monitor or Application Insights), alerting and incident handling.
• CI/CD with GitHub Actions, and Docker.
• Agile and Scrum, including writing clear stories and acceptance criteria.
• Uses AI coding assistants daily and reviews their output as rigorously as a colleague’s code.
• Able to explain technical trade-offs to non-developers.

Assets (Nice to have)

• PostGIS and geospatial work: GeoPandas, Shapely, MapLibre or Leaflet.
• Supabase and Vercel.
• Payload CMS or another headless CMS.
• Mining, exploration or geoscience experience.
• Experience leading or growing a small dev team.
• Ability to communicate in French.

Working Conditions

Office Work

• Primarily works in a standard office environment with minimal exposure to physical hazards.
• May encounter high-stress situations, especially when dealing with multiple projects and tight deadlines.
• This position requires that the candidate will be in front of a computer for long periods, up to 8 hours a day.
• Potential discomfort when working with computers for long periods may happen.

Overall

• A strong commitment to safety is required, with adherence to protocols.
• Clear communication is essential for safety and maintaining a supportive work environment.