Senior Software Engineer (IGT1)

About IGT1 Lanka 

IGT1 is a rapidly growing offshore technology and talent solutions company based in Port City Colombo. We are a fully owned subsidiary of IGT I Holdings Sweden AB, funded by the three of world’s leading private equity firms; EQT Group, Hg, and TA Associates. We’re also proud to be a sister company of IFS, Sri Lanka’s largest and most established technology company. 

At IGT1, we partner with global businesses to provide them with an operation that maximizes efficiency, spurs growth, allows them to develop and deliver world-class product and services, and create long-term value. Our people-first culture champions diversity, teamwork, and continuous learning, creating an environment where talent thrives. 

With a team of over 500 professionals and counting, we are always looking for passionate, skilled individuals who want to make a global impact while being part of something extraordinary. 

Through our offshore collaboration model, you'll be embedded within the team of one of our esteemed international clients, contributing directly to high-impact, enterprise-level initiatives. 

About the client: Sitecore 

Sitecore delivers a composable digital experience platform that empowers the world’s smartest and largest brands to build lifelong relationships with their customers. A highly decorated industry leader, Sitecore is the leading company bringing together content, commerce, and data into one connected platform that delivers millions of digital experiences every day. Thousands of blue-chip companies including American Express, Porsche, Starbucks, L’Oréal, and Volvo Cars rely on Sitecore to provide more engaging, personalized experiences for their customers.

We are looking for a Senior Backend Developer with deep expertise in .NET Core, REST API development, and cloud-native applications to support our engineering teams. As a Senior Developer, you’ll collaborate with architects and cross-functional teams to design, build, and deploy scalable solutions using Docker and cloud platforms (Azure/AWS/GCP), while driving best practices and mentoring junior developers. 

Responsibilities:

• Design, develop, and maintain applications using .NET Core and REST APIs.
• Build and containerize applications with Docker and deploy them to cloud environments (Azure/AWS/GCP).
• Write clean, efficient, and testable code following best practices and design patterns.
• Collaborate with cross-functional teams (QA, DevOps, Product Owners) to deliver features end-to-end.
• Contribute to code reviews, technical discussions, and architecture decisions.
• Monitor application performance and drive improvements in scalability and reliability.
• Mentor junior developers and share technical expertise within the team.

• Strong hands-on experience with .NET Core / ASP.NET Core.
• Expertise in designing and consuming RESTful APIs.
• Proficiency with Docker and container-based development.
• Experience with at least one major cloud platform (Azure, AWS, or GCP).
• Solid understanding of software design patterns, OOP, and microservices architecture.
• Strong debugging, troubleshooting, and problem-solving skills.

Nice to have:

• Experience with NoSQL databases (Redis, Elasticsearch).
• Exposure to Kubernetes for container orchestration.
• Familiarity with CI/CD pipelines and Infrastructure as Code.
• Knowledge of security best practices in API and cloud development.

We champion flexibility and hybrid work options to support varying lifestyles and personal needs. At the same time, we value the power of in-person collaboration to build community, spark innovation, and strengthen connections. Our approach ensures you can work in ways that suit you best while still engaging with colleagues to share ideas and grow together. #LI-Hybrid #LI-DNP