Strong Junior .NET Engineer

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 looking for a Strong Junior .NET Engineer. Our client, established in 2011 and based in Colorado, is a leading player in the U.S. application management market. We’ve had a successful partnership with this client and are seeking candidates who are eager to take ownership and improve a product already trusted by over 6,000 enterprises.

Requirements:

• 2+ years of commercial experience working on the backend as a .NET developer.
• Understanding of data access technologies, including Entity Framework and MongoDB.
• Experience with both SQL and NoSQL databases.
• Experience with microservice-oriented architecture, parallel, and asynchronous programming design patterns.
• Knowledge of design and architectural patterns.

Nice To Have:

• Experience with Kubernetes, Docker, and RabbitMQ.

Responsibilities:

• Develop and maintain high-quality software solutions using .NET 10.0.
• Take full ownership of delivering new features to end users, including designing architecture, implementing, testing, and onboarding the customer support team with new functionality.
• Collaborate with product owners, the support team, and end users to understand project requirements and deliver solutions.
• Participate in code reviews to enhance overall code quality.
• Ensure applications are high-performing, responsive, and of excellent quality.
• Troubleshoot and resolve technical issues and defects promptly.
• Create code documentation, technical specifications, and architecture diagrams for new features.
• Follow agile methodologies and participate in regular sprint planning and review meetings.

You are compatible with us if you:

• Have a strong product mindset.
• Have a proactive approach to taking ownership of decisions/features.
• Possess a strong, curiosity-driven mindset.
• Are comfortable with challenges.
• Have the ability to collaborate and build relationships with diverse personalities.
• Demonstrate customer-focused decision-making.
• Exhibit clear and timely communication.
• Are open to giving and receiving constructive feedback.
• Value the quality of your code.
• Are able to solve the required technical tasks and communicate throughout the process (for example, asking clarifying questions promptly).

We offer:

• exciting and challenging work in a friendly and professional environment;
• excellent career opportunities and competitive salary;
• on-site visits to customers;
• professional development program with internal seminars on technical topics;
• courses, certifications, and access to the corporate library;
• free English classes;
• 18 working days of paid vacation (24 calendar days), 5 full-paid sick leave days, paid public holidays;
• medical insurance;
• maternity leave;
• employee referral program;
• recognition program with gifts and awards;
• pet-friendly and eco-friendly;
• direct and easy communication with management and much more.