Senior Full Stack Engineer

Job Title: Senior Full-Stack Software Engineer

Location: REMOTE BUT YOU MUST LIVE IN PORTUGAL

Job Summary:

Contribute to the design, development, and support of scalable, integrated business systems across web, cloud, and enterprise platforms. You’ll work alongside the Principal Architect to build high-performance applications, and integrations using .NET (Framework/Core), SQL (MySql/MSSQL/PgSql) databases, AWS, and third-party systems.

Key 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

• 8+ years in full-stack engineering roles
• Strong experience with .NET (Framework and Core), C#, JavaScript, HTML
• working familiarity with NetSuite API/backend integrations - highly preferred
• 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

The Interview Process

1. Recruiter interview with a Talent Acquisition specialist

2. interview with our Program Leader Full Stack

3. Final interview with our Head of Software Development

Pay and Benefits (PORTUGAL)

• Compensation competitive to market and geographical location.
• Meal allowance for each day worked available through meal card.
• Home/Office allowance reimbursement per calendar month, pro-rated based on employment start date.
• Health insurance: Tillster pays the premium for employee private health insurance. Employees have the option to add their spouse/dependents at the employee’s cost.
• Holidays: Up to 20 federal and local/municipal holidays in accordance with applicable Portuguese Labor laws, dependent on your employment start date.
• Vacation: Up to 22 days of vacation every holiday year, pro-rated based on employment start date.
• Education, Learning & Development: We offer Udemy Learning courses; and ongoing learning and development opportunities.

Tillster is proudly an Equal Opportunity Employer

No Visa Sponsorship

Principals only – no Agencies or calls please