Senior Backend Engineer (.NET)

Sweed AB

Job Overview

Location

Remote International

Job Type

Full-time

Full Job Description

📋 Description

• Design and develop backend services within a microservices ecosystem using C# and .NET 8+ to support a cannabis retail platform with e-commerce, order management, and customer engagement features.
• Build, maintain, and improve APIs used by internal teams and external customers, including the Public API platform expansion initiatives.
• Refactor and optimize existing services, particularly cart, checkout, and order lifecycle components, to enhance performance, reliability, and maintainability.
• Participate in architectural discussions and technical decision-making to evolve monolithic systems into independent microservices and transition synchronous communication to asynchronous patterns.
• Improve system observability and metrics using Grafana and implement better monitoring practices to reduce production incidents and improve debugging efficiency.
• Optimize caching strategies using Redis to resolve cache-related issues and reduce latency across critical customer journeys such as checkout and order status updates.
• Collaborate with engineers across multiple product teams, including other e-commerce and platform teams, to ensure alignment on integration points and shared infrastructure.
• Review code and share engineering best practices to maintain high code quality and promote knowledge sharing within the team.
• Troubleshoot and resolve performance bottlenecks and production issues in high-traffic systems with minimal downtime.
• Work within two-week sprint cycles, participating in regular planning sessions, retrospectives, and technical discussions.
• Rotate weekly support duty approximately once every two months to investigate and route technical issues during core business hours; this is not an on-call rotation.
• Contribute to the modernization of the tech stack by leveraging Docker, Kubernetes, AWS, RabbitMQ, gRPC, EF Core, and Dapper in a CI/CD pipeline managed via GitLab.
• Engage with AI tools in software development workflows to enhance productivity and code quality.
• Communicate clearly in English for written collaboration and occasional calls with international teammates across time zones.
• Maintain ownership of technical solutions from design through deployment, making independent decisions while aligning with team and product goals.
• Demonstrate curiosity by understanding product context and customer needs beyond technical tasks, contributing to product improvements through engineering insights.
• Adapt to shifting priorities in a fast-moving business environment where regulatory and market conditions in the cannabis retail sector evolve rapidly.

🎯 Requirements

• 5+ years of backend development experience.
• Strong commercial experience with C# and .NET.
• Experience building and maintaining production systems with microservices architectures.
• Strong knowledge of relational databases (MS SQL, PostgreSQL).
• Experience with RabbitMQ or similar messaging systems.
• Experience working with Redis or other caching solutions.

🏖️ Benefits

• Compensation in USD.
• B2B contract with a US company.
• 100% remote work.
• Flexible working hours with core collaboration hours 10:00–16:00 CET.
• 20 paid vacation days.
• 12 company holidays and 3 sick leave days.
• Medical insurance after probation.
• Equipment reimbursement.

Skills & Technologies

ASP.NET

PostgreSQL

Redis

AWS

Docker

Backend

Senior

Remote

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Sweed AB

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About Sweed AB

Swedish fintech Sweed AB delivers cloud-based point-of-sale and business-management software for restaurants, cafés, and fast-food chains across the Nordics. The platform unifies order taking, payments, inventory, staff scheduling, accounting, and customer loyalty in one SaaS suite that runs on iOS, Android and web. Real-time dashboards and AI-driven analytics help owners cut costs, speed service and increase revenue, while open APIs connect seamlessly to accounting, delivery and marketing services. Founded in Stockholm in 2016, Sweed targets small to mid-sized hospitality businesses seeking an integrated, mobile-first alternative to legacy POS systems.

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