Backend .Net Developer

Backend Developer

Scope: 100%

Duration: 4 months with possibility for prolongation

Location: Stockholm City

Maximum allowed notice period for selected candidate: Available immediatley

Language: English is required; Sweidhs is plus

Responsibilities

Backend Development & Cloud Infrastructure

• Design, 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 Experience

You 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 Infrastructure

You 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 Experience

Required

• University 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 Have

• Experience 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 Qualities

• Pragmatic 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 Platform

• Charging Network and POI Management

  • Ingesting and enriching charging location data.

  • Maintaining a sanitized dataset suitable for HDV.

  • Distributing usable location information to downstream consumers.

• Charging Sessions and Pricing

  • Ingesting 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 Workflows

  • Supporting customer data, invoicing and billing flows.

  • Charging card ordering and integrations.