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Senior Software Engineer- Back End

TillsterPorto | Lisbon, Portugal | Braga, PortugalOnsite

Senior Software Engineer – Back End Remote (must be based in Portugal)About TillsterTillster, 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 RoleWe 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 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 make the till grow for Tillster and our customers.

    Thriving at Tillster


    As a member of Tillster, you will embody our core values:

    • Put Customers First: Prioritize the needs and satisfaction of our customers in all decisions and actions appropriate to Tillster’s stage of development, resources, and stated goals.
    • Collaborate: Work together effectively, leveraging diverse perspectives to achieve common goals.
    • Innovate: Embrace creativity and pursue new ideas to drive progress and improvement.
    • Operate from Data: Use strong critical thinking skills to make informed decisions based on accurate and relevant data.
    • Drive Results: Focus on achieving tangible outcomes and delivering high performance.
    • Own It: Take responsibility for your actions and the success of your work.
    • Be Passionate and Have Fun: Bring enthusiasm to your work and enjoy the journey.

    Making a Difference in the Tillster Way


    Our business and product mission is to empower restaurants and consumers globally; by empowering, supporting, and nurturing the people who are part of the global Tillster team. We are committed to fostering an inclusive and diverse work environment where every team member is respected, empowered, and encouraged to grow. To make this a reality, Tillster is dedicated to embracing diversity in all forms and is proudly an equal opportunity employer. We do not discriminate based on race, color, religion, national origin, gender identity, sexual orientation, age, family/parental status, marital status, veteran status, disability, or any other protected status.

    Follow us on: Tillster.com: https://www.tillster.com/ Tillster Careers: https://www.tillster.com/careers LinkedIn: https://www.linkedin.com/company/tillster/


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    Tillster cares about the safety of all our employees—even those we’ve yet to hire


    RECRUITMENT FRAUD WARNING


    We want to help you stay safe during your job search. Tillster will never:

    • Request personal/financial information during recruitment
    • Require payment or fees
    • Ask for sensitive PII before a formal job offer
    • Collect information via email or phone (only through secure channels)
    • Extend offers without in-person or virtual interviews

    Red flags:

    All official communications come from @tillster.com addresses only

    Suspicious activity?

    Report immediately to Tillster HR, Legal, or Cyber Security teams.

    Life at Tillster

    Tillster is the leader in digital ordering and customer engagement programs for the quick service restaurant and casual dining industries. Created by bringing together two of the industries’ pioneers, EMN8 and Snapfinger, the company’s digital solutions increase transactions, while delivering gross margin improvement, enhanced brand engagement, enhanced operational efficiencies and customer loyalty. With cross-platform integration across online, mobile, table, kiosk, and call center, Tillster provides seamless, multi-channel customer experiences and products that leverage innovative technology, design, cash and payment card handling, personalization and integration with leading restaurant technologies and consumer applications. Tillster currently supports tens of millions of guest transactions for global and regional brands such as Boston Market, Burger King, California Pizza Kitchen,
    Thrive Here & What We Value1. Embracing diversity in all forms, Equal Opportunity Employer2. Inclusive Working Environment3. Collaborative Work Environment with Rewards for Ownership, Problem Solving, and Teamwork4. Global Tillster Team Support and Nurturing5. Dedicated to Empowering Restaurants and Consumers Globally6. Udemy Learning Courses and Ongoing Development Opportunities7. Competitive Compensation Packages8. Healthcare, Dependent Care Reimbursement Programs, EAP Services9. Ten Paid Holidays per Calendar Year10. College Tuition Assistance
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