Backend .Net Developer

Job Description

Backend DeveloperScope: 100%Duration: 4 months with possibility for prolongationLocation: Stockholm CityMaximum allowed notice period for selected candidate: Available immediatleyLanguage: English is required; Sweidhs is plusResponsibilitiesBackend Development & Cloud InfrastructureDesign, build, and maintain backend services using modern .NET / C#.Develop and operate containerized services on AWS (primarily ECS/Fargate).Build and manage infrastructure as code using Pulumi.Develop integrations between internal services and external platforms.Contribute to solution design, architecture decisions, and technical planning.Improve and maintain GitLab CI/CD pipelines, deployment workflows, and automated testing.Enhance monitoring, logging, tracing, and alerting using the LGTM observability stack (Loki, Grafana, Tempo, Mimir).Platform & Charging ExperienceYou will shape how we packages and delivers a seamless electric charging experience, including data ingestion, aggregation, and classification, for example mapping charging locations to determine accessibility and logistical feasibility for heavy vehicles.Payment & Billing InfrastructureYou will contribute to the end-to-end payment ecosystem enabling charging across networks and countries, covering:Charging cards (physical and digital).Card distribution.Integration with charging station partners.Aggregated invoicing.Credit handling.VAT compliance across multiple jurisdictions.Integration with financial and accounting systems.Required ExperienceRequiredUniversity degree or equivalent practical experience.Minimum 2 years of backend development experience.Solid experience with modern .NET / C# (recent versions).Hands-on experience building and operating containerized services in AWS.Experience with Infrastructure as Code, ideally Pulumi, Terraform, or similar tools.Familiarity with CI/CD pipelines and automated delivery workflows (e.g. GitLab CI).Experience designing and building integrations with third-party systems and APIs.Strong communication skills in English; Swedish is a plus.Nice to HaveExperience with observability tooling and the LGTM stack (Loki, Grafana, Tempo, Mimir).Experience with OpenTelemetry.Background in e-mobility, eMSP, payment systems, or the EV charging domain.Personal QualitiesPragmatic and solution-oriented mindset.Trustworthy and relationship-driven.Strong communication skills and a collaborative attitude.Comfortable working independently with a strong sense of product ownership.Structured and self-driven.Entrepreneurial mindset.Key Areas of the PlatformCharging Network and POI ManagementIngesting and enriching charging location data.Maintaining a sanitized dataset suitable for HDV.Distributing usable location information to downstream consumers.Charging Sessions and PricingIngesting customer charging sessions from third-party systems.Enriching them with contextual data.Calculating incoming and outgoing costs.Performing plausibility monitoring to ensure data correctness.Customer WorkflowsSupporting customer data, invoicing and billing flows.Charging card ordering and integrations.