Senior Software Engineer – Back End

SENIOR SOFTWARE ENGINEER – BACK END

(MUST BE ABLE TO START IMMEDIATELY OR NO LONGER THAN 2 WEEKS NOTICE)

Remote, but must be based in Portugal (Porto, Braga, Lisbon or Coimbra)

About Tillster

Headquartered in the USA, Tillster is the global leader in digital ordering and customer engagement solutions. For over a decade we have developed revolutionary self-service, ordering and payments solutions – for mobile, tablet, online, kiosk, call center, and more – creating personalized interactions based on consumer preferences, language, and currency. Our platform is compatible with 15+ unique POS systems, representing over 90% coverage in multi-unit restaurants. We offer one platform: one scalable, enterprise class solution – to create world-class digital engagement solutions. Our mission and passion are one in the same: Empower restaurants and consumers to engage and transact anywhere, anytime, and from any device - one consumer at a time, one order at a time, billions of times over. In doing so, together we are transforming e-commerce in restaurants and making the till grow for Tillster and our customers.

Are you a passionate Software Engineer with a knack for designing and developing quality software solutions? Tillster is the place for you—we are seeking an experienced Software Engineer.

About the Role

As a Senior Software Engineer (SSWE), BACK END you will play a pivotal role in designing, developing, and maintaining our cloud-based microservices. You will collaborate closely with cross-functional teams to deliver high-quality software solutions that meet business needs while following best practices, including design patterns, architectural patterns, thorough testing methodologies, and modern AI developer tools to accelerate quality software delivery. You will contribute to fostering an agile, collaborative, and high-performing development environment.

What You'll Do

• Building highly scalable, secure, and high-performance microservices using AWS and TypeScript. Apply key software engineering principles, design patterns, and architectural best practices.

• Leverage state-of-the-art AI developer tools (e.g., Claude Code, GitHub Copilot, LLM reasoning models) to accelerate context gathering, boilerplating, test generation, and code refactoring.

• Build and maintain microservices that communicate via well-defined APIs, ensuring service modularity and scalability.

• Implement robust unit tests, integration tests, and end-to-end tests to ensure high-quality code. Work towards achieving high test coverage and adopting test-driven development (TDD) where applicable.

• Actively participate in Agile ceremonies (Scrum or Kanban) such as daily stand-ups, sprint planning, retrospectives, and backlog refinement. Contribute to sprint goals and collaborate effectively with the team.

• Conduct and participate in code reviews, ensuring adherence to coding standards, best practices, maintainability, and critically evaluating AI-generated code outputs for security and correctness.

• Participate in design sessions to help improve the overall architecture of the platform.

• Work with stakeholders and product owners to understand requirements and come up with solutions.

• Continuous learning: Tillster provides access to learning courses where you can beef up your skills in different areas as needed.

About You

• 5+ years’ experience in design and development of service-oriented Java, Python, C#, Typescript (or any modern language) applications.

• Experience in designing and building microservice-based systems, ensuring high cohesion and loose coupling.

• Languages: Any modern OOP language will do, but Typescript is preferred.

• Comfortable integrating AI tools (e.g., Claude Code, Cursor, ChatGPT/Claude) into your daily workflow to boost engineering velocity while maintaining deep critical code validation.

• Experience implementing comprehensive testing strategies including unit tests, integration tests, and end-to-end tests.

• Experience with relational or NoSQL data stores.

• Expertise in applying industry-standard design patterns and architectural patterns.

• Ability to communicate effectively in English, with good verbal and written skills.

• Experience working in an Agile environment (Scrum or Kanban), contributing to team-driven development processes.

• Understanding of security best practices in software development, including OAuth, JWT, encryption, etc.

• Bachelor’s degree in Computer Science (or similar) or equivalent experience.