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Senior Product Engineer at Prime Penguin

Tjänst Senior Product Engineer
Publicerad 04 Mar 2026
Utgången 03 Apr 2026
Företag Prime Penguin
Plats Stockholms län | SE
Anställningsform Full Time

Jobbbeskrivning:

Senaste jobbinformationen från Prime Penguin för tjänsten som Senior Product Engineer. If the Senior Product Engineer lediga tjänsten i Stockholms län matchar dina kvalifikationer, vänligen skicka din senaste ansökan eller CV direkt via den uppdaterade Jobkos-portalen.

Observera att det inte alltid är enkelt att söka jobb, eftersom kandidater måste uppfylla vissa krav från företaget. Vi hoppas att karriärmöjligheten hos Prime Penguin för tjänsten som Senior Product Engineer nedan matchar din profil.

We’re looking for a Senior Product Engineer (.NET) to join our small engineering team and help build and evolve a high-traffic integration platform used by eCommerce and logistics businesses operating at scale.

This role is ideal for someone who enjoys working close to the product, understands how software decisions affect real customers, and likes improving existing systems step by step rather than rewriting everything from scratch.

You’ll work on features and integrations that directly impact how orders, invoicing, inventory, payments, and warehouse flows move through the platform.

What you will be working on
  • Developing and improving a core .NET product used in business-critical, high-volume environments
  • Building and maintaining integrations between eCommerce platforms, ERPs, WMSs, carriers, and third-party services
  • Improving reliability and performance during high-traffic peak periods
  • Working in a mainly monolithic application, with supporting microservices and external integrations
  • Background processing and async workflows using Hangfire
  • Incrementally improving test coverage, stability, and code quality in a mature production codebase
What we are looking for
  • Solid experience with .NET (Framework or Core) and C#
  • Ability to understand how technical changes affect users, customers, and business flows
  • Experience improving or extending systems without breaking what already works
  • Fluent in both Swedish and English (required)
  • Integrations & APIs
  • Hands-on experience with system integrations
  • Good understanding of REST APIs, async workflows, and error handling
  • Familiarity with monolithic systems and how they interact with external services
  • Comfortable moving across the stack when needed
  • Able to collaborate effectively with frontend or product-focused work
  • Quality & pragmatism
  • Experience writing unit and/or integration tests
  • Pragmatic approach to technical debt - improving things when it makes sense
  • Focus on stability, clarity, and maintainability over “perfect” solutions
Highly beneficialskills
  • Experience with integrations towards ERPs (Affärssystem)
Nice to Have (Not Required)
  • Experience with Azure (infrastructure, hosting, scaling)
  • Performance optimisation or handling high-volume systems
  • CI/CD pipelines and production deployments
  • Exposure to refactoring or evolving architectures over time
  • Curiosity about AI-assisted development tools
How You’ll Work
  • Close collaboration with product, integrations, and customer-facing roles
  • Real ownership of features and integrations end-to-end
  • Technical decisions grounded in real customer needs
  • A team culture that values clarity, pragmatism and low ego
About Prime Penguin

Prime Penguin builds an integration Platform as a Service (iPaaS) for e-commerce and logistics companies. Our platform connects stores, marketplaces, ERPs, warehouses, carriers, and third-party tools - giving customers real-time visibility across orders, inventory, and fulfillment.

Our software runs in high-volume, business-critical environments, especially during peak trading periods. We focus on evolving the product continuously: improving architecture, performance, reliability, and developer experience while adding new capabilities.

At Prime Penguin, developers are close to both the product and the customer. You’ll have real influence, clear ownership, and the opportunity to grow your role as the platform grows.

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Om tjänsten:

  • Företag: Prime Penguin
  • Tjänst: Senior Product Engineer
  • Arbetsplats: Stockholms län
  • Land: SE

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