Polus Solutions is looking for a highly experienced Senior .NET Backend Developer (Contract Role) with deep expertise in Microsoft SQL Server and enterprise-grade backend systems. This role requires strong technical leadership and hands-on development capabilities. Experience in the travel and booking domain is a strong plus.

Skills

• C#
• .Net Core
• Dot Net Framework
• Azure SQL
• RESTful APIs
• Microservices
• Azure Devops
• CI/CD Pipelines
• Analytical skills
• Interpersonal
• Communication

Requirements

• Job Role Dot Net developer
• Job Type Contract
• Workplace Type Onsite
• Industry Software Development

Secondary locations

About

Not provided

Responsibilities

• Design, develop, and maintain backend services using C# and .NET Core / .NET Framework.
• Develop, review, and optimize complex stored procedures, triggers, views, and SQL queries in Microsoft SQL Server (MSSQL).
• Build and integrate RESTful APIs and Web Services.
• Architect scalable, secure, and maintainable backend systems.
• Collaborate closely with front-end developers, QA engineers, DevOps, and business analysts to ensure seamless delivery.
• Perform code reviews, write unit tests, and create supporting documentation.
• Diagnose and resolve backend performance issues and database-level inefficiencies.
• Implement robust data integrity, backup, and disaster recovery practices.
• Manage code using Git or similar version control tools.
• Work within Agile/Scrum-based project teams to meet sprint objectives.

Other Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related discipline.
• 10+ years of professional experience in backend development using C#, .NET Core, and/or .NET Framework.
• Advanced hands-on expertise in Microsoft SQL Server, including performance tuning, indexing, normalization, and query optimization.
• Proficient in Entity Framework / ADO.NET.
• Strong experience in building RESTful APIs and microservices.
• Solid understanding of software design patterns and principles (SOLID, DRY, etc.).
• Familiarity with unit testing frameworks such as NUnit or MSTest.
• Hands-on experience with Git for version control.
• Exposure to Azure SQL, Azure DevOps, and CI/CD pipelines is a strong advantage.
• Knowledge of messaging queues like RabbitMQ or Azure Service Bus is a plus.
• Sound understanding of backend and database security standards.
• Preferred: Prior experience in building or supporting travel and booking websites or platforms.

• Excellent analytical and problem-solving capabilities.
• Strong interpersonal and communication skills.
• Proven ability to work independently and meet deadlines in a fast-paced environment.
• Continuous learning mindset and adaptability to new technologies.

Good to have

Not provided

About the Company

Established in 2009, Polus is a global software solutions and product development company dedicated towards providing expert software development services and solutions for small, large and medium-sized companies. Polus thrives on process-driven software development and consulting models that meet the needs for a variety of consumers. We offer software and system product development, application development, mobile application development and more. Our methodology focuses on reliability, quick turnaround, and high-value product and we offer both on-site and off-shore options. We are a team of experienced employees that are experts in developing concise yet advanced software options for all types of customers. Creativity, flexibility, collaboration and personal initiative are core values at Polus, where our self-motivated workforce is always seeking opportunities to further their training and grow. Our people are our greatest strength. We have developed a team focused on inclusivity and collaboration, meaning that your role is fundamental to the team. Our employees are able to enjoy responsibility, even at an initial stage of profession. We focus on nurturing our employees' careers through each step of the way.