Senior Full Stack Software Engineer

Summary

Join Tillster as a Senior Full-Stack Software Engineer and contribute to the design, development, and support of scalable business systems across various platforms. You will collaborate with the Principal Architect to build high-performance applications and integrations using .NET, SQL databases, AWS, and third-party systems. This role requires expertise in full-stack development, database management, AWS infrastructure, and CI/CD workflows. You will work cross-functionally with various teams and contribute to technical documentation. The position offers a competitive salary and benefits package, including health insurance, paid time off, retirement plan, and professional development opportunities. The ideal candidate will have 8+ years of experience in full-stack engineering and strong experience with .NET, C#, JavaScript, HTML, and AWS.

Requirements

• 8+ years in full-stack engineering roles
• Strong experience with .NET (Framework and Core), C#, JavaScript, HTML
• Hands-on experience/understanding of AWS, SQL relational databases, and integrations with 3rd party APIs
• Ability to work independently but thrive in a collaborative, fast-paced environment
• Excellent communication skills and a mindset for continuous learning
• Worked in Agile Environment

Responsibilities

• Develop and maintain full-stack features using .NET (Framework/Core) and relational database with HTML/JavaScript
• Integrate third-party systems (Internal, Stripe, NetSuite, Simphony, QuickBooks) with internal platforms
• Write and optimize SQL queries (MySQL, PostgreSQL, MSSQL); familiarity with NoSQL (DynamoDB/Mongo) a plus
• Participate in code reviews, pull requests, and collaborative design discussions
• Deploy services using AWS infrastructure (EC2, RDS, Lambda, S3) and manage IIS for legacy .NET apps
• Contribute to CI/CD workflows using Jenkins and GitHub Actions
• Support production issues related to system performance and integration failures/issues
• Assist with creating reporting pipelines using tools like Snowflake, Redshift and SQL
• Work cross-functionally with product, operations, and accounting teams to understand and implement requirements
• Contribute to technical documentation and maintain system/process clarity
• Build and document RESTful APIs for internal and external consumption (Swagger/OpenAPI)

Preferred Qualifications

Working familiarity with NetSuite API/backend integrations - highly preferred

Benefits

• All full-time, regular employees and their dependents are eligible for medical, dental, vision and FSA benefits
• Additional health benefits include Healthcare and Dependent Care reimbursement programs, Employee Assistance Program (“EAP”) and Optum Care 24-hour confidential medical counseling services
• The company observes ten (10) paid holidays per calendar year
• Full-time, regular employees earn 15 days of PTO in the first 12-months of continuous service, and 22 days in subsequent years
• Eligible part-time employees earn pro-rated PTO
• Effective with your employment start date, you will be eligible to participate in the 401(k) Plan
• We offer college tuition and education assistance programs; LinkedIn Learning courses; and ongoing learning and development opportunities