Junior .NET Engineer: Ownership, Growth & Impact

Blackthorn Vision LLC.; Polska; Hybrid; PLN 70,000 - 120,000; Full time

Benefits offered by this job

Medical insurance

Professional development program

English classes

Paid vacation and sick leave

Relocation assistance (implicit in on‑

Job summary

Blackthorn Vision is seeking a Strong Junior .NET Engineer to join our client in the U.S. market. You will develop and maintain backend solutions, take ownership of delivering new features, and collaborate with product owners and users to clarify requirements.

With 2+ years of experience, you will work on microservice-based architecture, data access with EF and MongoDB, and both SQL and NoSQL databases. On-site visits and a professional development environment await.

Qualifications

• 2+ years of commercial backend .NET experience.
• Understanding of data access technologies incl. EF and MongoDB.
• Experience with SQL and NoSQL databases.
• Experience with microservices, parallel and async patterns.
• Knowledge of design and architectural patterns.

Responsibilities

• Develop and maintain high-quality .NET solutions.
• Take ownership of delivering new features end-to-end, including architecture, implementation, testing, and onboarding.
• Collaborate with product owners, support, and end users to understand requirements and deliver solutions.
• Participate in code reviews to improve code quality.
• Ensure applications are high-performing, responsive and of high quality.
• Troubleshoot and resolve issues and defects promptly.
• Create code docs, technical specs, and architecture diagrams for new features.
• Follow agile practices and participate in sprint planning and reviews.

Skills

Backend development

Microservices

Asynchronous programming

Design patterns

Ownership mindset

Tools

Entity Framework

MongoDB

SQL

NoSQL

RabbitMQ

Job description

Blackthorn Vision is seeking a Strong Junior .NET Engineer to join our client in the U.S. market. You will develop and maintain backend solutions, take ownership of delivering new features, and collaborate with product owners and users to clarify requirements.

With 2+ years of experience, you will work on microservice-based architecture, data access with EF and MongoDB, and both SQL and NoSQL databases. On-site visits and a professional development environment await.