Location: Gdańsk, Poland
On behalf of Survalyzer, Efisco is looking for a C# Back-End Developer with proven working experience and strong communication skills to join the Gdansk team on a full-time basis. We are looking for a valuable addition to our team and looking forward to meeting you.
About Survalyzer
Survalyzer is a constantly growing company located in Switzerland.
Survalyzer is a constantly growing Swiss company driven by visionary founders and a
passionate, international engineering team.
We build advanced software for market research, including a powerful online
questionnaire platform, next-generation data analytics dashboards, education platforms,
and audit portals.
Our focus is on performance, scalability, and usability, using modern cloud technologies
and clean engineering practices. We continuously improve our products with minimal
legacy code and a strong emphasis on quality.
Tasks you will be dealing with
- Implement client portals based on our SDK (HTML, CSS, JavaScript)
- Implement changes requested by customers
- Configure surveys and reports based on requirements and integrate them into the portal
- Configure simple mathematical formulas as a calculation base for the reports
- Deploy customer portals to web spaces and notify customers about delivery
- Work ticket-based with Jira and update Confluence project documentation
Reasons why you should join Survalyzer team @ Efisco
- Be part of a multi-national engineering team focused on high-quality product
- development
- Mature, friendly, and engineering-driven work environment
- Open and transparent communication
- Lots of new development and minimal legacy code
- Collaborative culture with pair programming, code reviews, and design
- discussions
- Stable, long-term employment directly with a Swiss company
- Modern technology stack: .NET 9, Azure, Redis, SQL, Dapper, AWS
Extended development and educational package:
- 800 EUR/year education budget (courses, certifications, conferences, your choice)
- 3 workdays a year to visit conferences
Social benefits package:
- Medical insurance (VIP package – Luxmed)
Requirements
Obligatory
- Strong experience with C# and .NET (.NET 8+; .NET 9 preferred)
- Solid experience in back-end development (Middle or Senior level)
- Strong knowledge of SQL databases (Azure SQL preferred)
- Hands-on experience with Dapper
- Good understanding of enterprise and architectural patterns
- Experience designing and maintaining RESTful APIs
- Experience with Azure App Services
- Experience with Azure Functions
- Experience with Azure Storage Accounts (Blob / Queue / Table)
- Experience with Azure Key Vault
- Experience with Azure Application Gateway
- Experience with Azure Redis Cache
- Understanding of asynchronous programming and performance optimization
- Experience with CI/CD pipelines
- Knowledge of secure backend development and cloud security best practices
- Strong English skills (written and verbal)
- Self-driven and self-motivated, able to work independently and in a team
Desirable
- Experience with OAuth 2.0 / OpenID Connect
- Experience with SSO authentication
- Experience with JWT / SAML
- Experience with Azure Front Door
- Experience with Azure Analytics Services or similar monitoring/analytics tools
- Experience integrating AWS services, especially: AWS SES, AWS SNS, AWS CloudWatch
- Experience with high-load or scalable SaaS systems
- Experience with distributed systems
- Familiarity with event-driven architectures
- Experience mentoring developers (for Senior level)
- Experience working in Agile/Scrum environments
About Efisco
Efisco is the comfortable home for Extended Teams of EU-based customers in Poland. We are located in Gdańsk Science and Technology Park and offer nice accommodation in our cozy office at Trzy Lipy St. We welcome you to be a part of our team!
If you are interested, please leave your detailed CV at job@efisco.net.