Explore 4 c net python developer jobs from 3 hiring companies in Sudden Valley, WA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Purdys Chocolatier

PosiTrace

UnitedHealth Group

Hybrid

Onsite

Remote

PosiTrace builds a real-time GPS fleet tracking SaaS platform -- vehicle location, telemetry processing, reporting, dispatching, and fleet management tools for SMB and enterprise customers across Canada and Mexico. Our backend processes millions of GPS data points daily across multiple receiver protocols. 
We're migrating toward MACH (Microservices, API-first, Cloud-native, Headless) and need a senior backend engineer to co-own that evolution. 
This is a full-time, on-site position at our Burnaby, BC headquarters. Not available for remote or hybrid.
 
What You'll Do
<ul>
<li>Build and maintain backend services in .NET 8 / C# and Python (FastAPI, Dramatiq workers, Dask data pipelines)</li>
<li>Design microservice boundaries, API contracts, and data flows as we decompose a monolithic Rails application into independent services</li>
<li>Work directly on core platform systems: GPS telemetry ingestion, history processing, reporting engine, dispatching services, billing and subscription management</li>
<li>Write and review production-grade, test-driven code; enforce quality through code reviews across .NET and Python codebases</li>
<li>Design and optimize MySQL queries and schemas for high-volume transactional workloads (10M+ row tables, complex joins across billing/device/contract hierarchies)</li>
<li>Build and consume RESTful APIs; design webhook delivery systems and event-driven integrations</li>
<li>Deploy to production via BitBucket Pipelines, Docker, and Kubernetes (GKE) with zero-downtime rolling updates</li>
<li>Produce architecture documentation: system diagrams, data flow diagrams, ADRs in Confluence</li>
<li>Manage async job processing with RabbitMQ and Dramatiq/Delayed Job workers</li>
<li>Operate within Google Cloud Platform: GKE, Cloud SQL, Cloud Storage, Secret Manager, BigQuery</li>
<li>Collaborate with the Rails team, DevOps, and QA; work with the Engineering Team Lead and VP of Engineering on technical direction</li>
<li>Estimate tasks, communicate blockers, and participate in sprint planning using Jira and GitFlow branching</li>
</ul>
 
What You Bring
<ul>
<li>Production experience with .NET 8 / C# -- building, testing, and deploying backend services</li>
<li>Production experience with Python -- FastAPI or Flask, async task processing, data manipulation (Pandas, Dask)</li>
<li>Strong MySQL skills: query optimization, indexing strategies, schema design for high-load systems</li>
<li>Experience with at least one of: PostgreSQL, Elasticsearch, MongoDB, BigQuery</li>
<li>Hands-on Docker + Kubernetes (GKE preferred): writing Dockerfiles, managing deployments, debugging pod issues, reading container logs</li>
<li>Experience with RabbitMQ or similar message brokers and async job queues</li>
<li>Track record of designing and implementing microservices -- service decomposition, inter-service communication, API versioning, backward compatibility</li>
<li>Familiarity with Redis for caching and session management</li>
<li>Experience with Git/GitFlow branching workflow and BitBucket or similar platforms</li>
<li>Ability to write clear technical documentation and communicate tradeoffs to both engineers and non-technical stakeholders</li>
<li>Strong written and spoken English</li>
</ul>
 
What Sets You Apart
<ul>
<li>Experience with Ruby on Rails; understanding Rails conventions and ActiveRecord is critical for designing migration paths</li>
<li>Experience with Go</li>
<li>MongoDB experience</li>
<li>Experience with Elixir</li>
<li>Background in IoT / telematics: GPS device protocols, high-throughput telemetry ingestion, real-time data pipelines</li>
<li>Experience with AI/ML integration: MCP servers, LLM API orchestration</li>
<li>WebSocket experience for real-time data delivery</li>
<li>Experience with Angular frontend; helpful for full-stack debugging</li>
<li>SOC2 compliance experience</li>
<li>Monitoring and observability: Zabbix, GrayLog, GCP Cloud Monitoring</li>
<li>API documentation practices (Swagger/OpenAPI)</li>
</ul>
 
What We Offer
<ul>
<li>On-site, full-time at our Burnaby headquarters -- no remote, no hybrid</li>
<li>Salary: CA$110,000 -- CA$145,000/year based on experience</li>
<li>Direct architectural impact on a multi-service SaaS platform processing real-time GPS data at scale</li>
<li>State-of-the-art hardware, JetBrains licenses (Rider, PyCharm, RubyMine)</li>
<li>Paid vacation, holidays, and sick days</li>
<li>Architect-track career progression</li>
<li>Work across the full stack: .NET microservices, Python data pipelines, Rails, GKE infrastructure</li>
<li>Individualized development plan and continuous learning opportunities</li>
</ul>
 
We welcome all qualified applicants, prioritizing skill and character. Let's talk.

Senior Backend Engineer, .NET & Python

Backend Engineer

Senior backend engineer with production experience in .NET 8/C# and Python, database design, microservices, and cloud deployments.

Lead Developer

7+ years app development; 2+ years in lead role; ERP/CSI experience; .NET Core, C#, React, Python; SQL Server; Azure DevOps; Bitbucket; cloud (Azure/AWS); AI tooling; strong leadership.

7+ years application development; 2+ years in a technical/lead role; strong .NET Core, C#, React (Next.js), Python, HTML/CSS/JS/TypeScript, and SQL Server; ERP experience with Infor SyteLine (CSI) preferred; cloud and AI tooling experience; strong communication skills.

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together. We are seeking a Senior Software Engineer to design, build, and operate cloud-based services that power large-scale, mission-critical platforms. In this role, you will take end-to-end ownership of features—from requirements and system design through deployment and production operations—while balancing new feature delivery with technical debt reduction. You’ll collaborate closely with product and engineering partners, uphold a high engineering bar, and help the team continuously improve how we build, test, ship, and support software. You’ll enjoy the flexibility to work remotely * from anywhere within the U.S. as you take on some tough challenges. For all hires in the Minneapolis or Washington, D.C. area, you will be required to work in the office a minimum of four days per week. Primary Responsibilities:<ul><li>Contribute to planning and execution of software development for new capabilities, including estimating, sequencing work, and identifying dependencies</li><li>Design, develop, deploy, and operate cloud-based services in a CI/CD environment with a strong focus on reliability, performance, and security</li><li>Balance delivery of new features with ongoing maintenance and reduction of technical debt, proactively surfacing risks and tradeoffs</li><li>Write high-quality, scalable, supportable code with appropriate unit tests, automated test coverage, documentation, and operational readiness (monitoring, alerting, runbooks)</li><li>Partner with user representatives and cross-functional engineering teams to clarify requirements, propose solutions, and implement necessary modifications</li><li>Collaborate proactively with other teams to remove blockers, resolve integration issues, and ensure smooth delivery across services</li><li>Lead by example through technical excellence—driving good design decisions, improving engineering practices, and mentoring others as needed</li><li>Continuously identify and champion opportunities to improve developer productivity, system maintainability, and the team’s responsiveness to change</li><li>Leverage enterprise-approved AI tools to enhance productivity and innovation by streamlining workflows and automating repetitive tasks</li></ul> You’ll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in. 
Required Qualifications:<ul><li>7+ years of professional software engineering experience building and maintaining production systems</li><li>Solid hands-on experience with C#, .NET, and ASP.NET Core in service-oriented or microservice-based architectures</li><li>Experience maintaining large, complex codebases with multiple services, shared libraries, and cross-team dependencies</li><li>Experience with API design, backend integrations, asynchronous processing, and debugging distributed systems</li><li>Experience with containerized development and deployment using Docker</li><li>Experience with CI/CD, automated testing, code reviews, and code-quality tooling</li><li>Experience deploying and operating production workloads on cloud platforms (GCP, AWS, or Azure)</li><li>Working knowledge of frontend development with React, TypeScript, and modern JavaScript tooling Familiarity with databases and data-access patterns in high-scale systems</li><li>Proven solid troubleshooting skills across application, infrastructure, and integration layers</li><li>Proven solid communication skills and the ability to lead technical decisions, mentor engineers, and improve engineering practices</li></ul> Preferred Qualifications:<ul><li>Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent practical experience</li><li>Experience with Google Cloud Platform (e.g., GKE, Cloud Run, Pub/Sub, Spanner, Dataflow)</li><li>Experience with healthcare or regulated-domain software</li><li>Experience supporting imaging, archive, workflow, or integration platforms such as PACS, VNA, or enterprise imaging systems</li><li>Experience modernizing legacy services while preserving backward compatibility and production stability</li><li>Experience with observability (structured logging, metrics, tracing) and production incident response</li><li>Experience with test strategy across unit, integration, and end-to-end test suites</li><li>Experience working with mixed technology stacks, including some combination of Java, Python, Node.js, and .NET</li><li>Experience improving developer workflows, repository health, dependency management, and platform maintainability</li><li>Experience with agentic development (e.g., building workflows that use tools, planning, and automation)</li><li>Familiarity with healthcare interoperability standards such as DICOM, HL7, and FHIR</li><li>Familiarity with event-driven/message-based architectures, protobuf contracts, and background job/workflow patterns</li></ul> *All employees working remotely will be required to adhere to UnitedHealth Group’s Telecommuter Policy Canada Residents Only: The salary range for Canada residents is $82,700 to $171,900 annually. Pay is based on several factors including but not limited to education, work experience, certifications, etc. At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone–of every race, gender, sexuality, age, location and income–deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes — an enterprise priority reflected in our mission.

Senior Software Engineer - Remote

Senior Software Engineer

7+ years of professional software engineering; strong C#, .NET, ASP.NET Core; cloud experience; CI/CD; frontend with React/TypeScript; Docker; multiple cloud platforms; healthcare domain familiarity preferred.

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