Senior Software Engineer

Senior Software Engineer – Back End
Remote (must be based in Portugal)
About Tillster Tillster, headquartered in the USA, is the global leader in digital ordering and customer engagement solutions for the restaurant industry. For more than a decade, we've pioneered self-service, ordering, and payment technologies across mobile, web, kiosk, and call center platforms. Our mission is simple but powerful: to empower restaurants and consumers to connect and transact anywhere, anytime, and from any device—one order at a time, billions of times over. Today, our platform integrates with 15+ POS systems covering over 90% of the multi-unit restaurant market. At Tillster, you'll join a team that is transforming restaurant e-commerce on a global scale—building solutions that fuel growth for our clients and bring personalized convenience to millions of guests worldwide.
About the Role We are seeking a Senior Software Engineer (Back End) to help design, build, and scale our cloud-based microservices platform. This role is perfect for someone who loves solving complex engineering challenges, thrives in a fast-paced environment, and is eager to make an impact on products used by some of the world's most recognized restaurant brands. As part of our back end engineering team, you'll work with AWS, TypeScript, and modern service-oriented architectures to deliver highly available, secure, and high-performance solutions. You'll have the opportunity to influence architectural decisions, mentor peers, and ensure our services are built with quality at their core.What You'll Do
Design, develop, and maintain scalable microservices in AWS using TypeScript (or other modern OOP languages).
Build services that integrate seamlessly through well-defined APIs, ensuring modularity, scalability, and performance.
Champion testing excellence: write and maintain unit, integration, and end-to-end tests, driving high test coverage and adopting TDD where appropriate.
Actively contribute to Agile ceremonies (Scrum or Kanban) and collaborate with product owners, architects, and engineers across teams.
Participate in code reviews, ensuring high-quality, maintainable, and well-documented code.
Engage in technical design discussions to shape the evolution of our platform.
Continuously learn and grow: Tillster offers access to 16K+ online courses to keep your skills sharp and future-ready.
About You
5+ years of experience building service-oriented applications with Java, Python, C#, TypeScript, or similar.
Proven experience designing and implementing microservice architectures.
Hands-on experience with quality testing (unit, integration, end-to-end).
Strong grasp of design patterns and architectural best practices.
Proficient with relational and/or NoSQL data stores.
Excellent communication skills in English (written and spoken).
Experience working in Agile environments (Scrum or Kanban).
Knowledge of security best practices (OAuth, JWT, encryption).
Bachelor's degree in Computer Science (or equivalent experience).
Bonus points for: AWS serverless experience (DynamoDB, SQS, etc.).
Analytical mindset with a focus on continuous improvement.
Comfortable in a fast-moving, dynamic environment where requirements evolve.
The Interview Process
Recruiter screen with Talent Acquisition
Live coding challenge & interview with Back End Engineering Manager
Final conversation with our Program Leader (TCE)
Why Join Tillster?
Work on global-scale technology powering billions of transactions.
Be part of a collaborative, innovative, and fun culture where problem-solving and ownership are celebrated.
Competitive salary and benefits package.
Flexible work schedules, generous PTO, and health & retirement benefits.
Educational Assistance Program + access to 16,000+ online learning courses.
Remote-first culture with colleagues across the U.S., France, Portugal, and Spain.
At Tillster, we are proudly an Equal Opportunity Employer. We celebrate diversity, value inclusion, and are committed to creating an environment where everyone can thrive. ⚠️
Please note: No visa sponsorship is available for this role. Principals only – no agencies or calls, please.
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 e