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Wise Integration

Freelance Senior (.NET) Software Engineer (B2B Contract)

LocationVilnius
Work moderemote
Typecontract
DepartmentBackend
Company size11+ people
First seen4d ago
Last seen2d ago
Location: Vilnius, Lithuania — preferably hybrid, or remote within the EU / UK
Contract period: 1 October 2026 – 31 December 2026
About the role
About the Role
We are looking for an experienced .NET Software Engineer to join a mature, highly skilled squad working on a modern, distributed banking platform.
You will contribute to the design and development of a scalable, reliable, and secure solution built around native AWS services and high-criticality data pipelines.
Responsibilities
Key Responsibilities
•
Design and develop robust enterprise applications using .NET 10.
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Build modern, distributed solutions leveraging native AWS services.
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Develop highly scalable and reliable solutions for high-criticality data pipelines.
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Contribute to maintaining high standards of software quality, performance, and security.
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Investigate and resolve incidents, bugs, and production issues.
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Work effectively within a self-organizing Scrum team and contribute to an agile way of working.
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Create and maintain comprehensive technical documentation where required.
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Collaborate closely with software architects, engineers, business analysts, and other stakeholders.
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Contribute to the development of a modern, robust, and secure banking platform.
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Stay current with emerging technologies and contribute to continuous technical improvement.
Requirements
Requirements
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3–5+ years of professional experience developing and delivering robust enterprise products or applications.
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Strong experience with .NET 10 / C#.
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Thorough understanding of cloud technologies, particularly AWS, including services such as:
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AWS Lambda
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Amazon S3
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Amazon SQS
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AWS Step Functions
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Amazon DynamoDB
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and other native AWS services.
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Experience with GitHub Enterprise.
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Hands-on experience with CI/CD automation.
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Experience with Infrastructure as Code (IaC), particularly Terraform.
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Experience working in Agile / Scrum environments.
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Bachelor’s degree or higher in Engineering, Computer Science, or a related field.
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Upper-Intermediate English (B2+), both written and spoken.
Nice to have
Nice to Have
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Experience with enterprise-grade data platforms, particularly Databricks.
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Experience with message streaming / queueing platforms such as Apache Kafka.
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Experience working with distributed systems and high-volume data processing.
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Previous experience in banking or other highly regulated environments.
Benefits
What You Can Expect
•
Work alongside a mature team of highly skilled technology professionals.
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Opportunity to work with modern .NET and AWS technologies.
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Exposure to distributed systems and high-criticality data platforms.
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A self-organizing Scrum environment with a strong engineering culture.
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Collaboration with experienced architects, engineers, and business analysts.
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Opportunity to contribute to a modern banking platform where reliability, security, and scalability are critical.
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