Senior Software Engineer | Billing

Your wellbeing, our mission. Join a company shaping a healthier world. GET TO KNOW US At Wellhub we're revolutionizing workplace wellness. Our platform connects employees worldwide to the best partners for fitness, mindfulness, therapy, nutrition, and sleep—all in one simple subscription. Headquartered in NYC with team members in Europe, North America and South America, we’re on a mission to make every company a wellness company. We believe work should be fulfilling, inspiring, and balanced. Here, you’ll find a team that values wellbeing, collaboration, and different perspectives, where passion and creativity push boundaries to create real impact. Your contributions will help shape a healthier, more balanced world for you and millions of people globally. Join us in redefining the future of wellbeing! THE OPPORTUNITY We are hiring a Senior Backend Software Engineer in our Billing team in Portugal ! This is a Remote – Portugal position, meaning you can work from anywhere within the country. Please note that this role is only open to candidates in Portugal. Responsible for the platform that serves the entire Wellhub business, processing millions of transactions for users and companies around the globe. We work closely with cross functional teams and payment service providers to deliver optimum checkout conversion rates and also efficient account management interactions. We are creating a new architecture and set of systems that will guarantee consistency across multiple areas and services. We are looking for a Senior Software Engineer, with a solid history of quality projects delivered, hands-on technical work, willing to work with a team of ~8 mid-level, senior and staff software engineers working from Brazil and Portugal. YOUR IMPACT Participate in the development of some of the most critical and challenging services in our ecosystem, seeking to build long-term and sustainable solutions; Design, develop, test, deploy, maintain and improve services focusing on performance, scalability, and resilience; Build Integration with 3rd party API and tools; Work in a collaborative and agile environment that prioritizes people over process; Work with cutting-edge technologies and edge cases on a global scale; Live the mission: inspire and empower others by genuinely caring for your own wellbeing and your colleagues. Bring wellbeing to the forefront of work, and create a supportive environment where everyone feels comfortable taking care of themselves, taking time off, and finding work-life wellness. Who You Are Focus on making things right and better at every opportunity; Solid experience with RESTful APIs written in: Java/Kotlin + Spring (main stack); Asynchronous processing and data pipelines; Software Architecture knowledge: Event driven architectures and Serverless; Software quality and test automation mindset; Cloud computing (AWS) and Cloud Native (K8s) experience; Experience with SQL technology such as PostgreSQL, MySQL, Oracle, SQL Server or any other relational database; Experience with NoSQL database such as DynamoDB; Experience with microservices and high volume distributed systems; Experience using AI agents during daily tasks and development; Bachelor’s degree in computer science or equivalent professional experience. We recognize that individuals approach job applications differently. We strongly encourage all aspiring applicants to go for it, even if they don't match the job description 100%. We welcome your application and will be delighted to explore if you could be a great fit for our team. For this specific role, please note that experience working with Kotlin or Java (Spring) , microservices, and distributed systems are mandatory requirements. What We Offer You With thoughtful benefits, emotional wellbeing resources, and a culture that empowers you to take ownership of your role and your wellbeing, we create an environment where you can thrive in all dimensions of your life. Our benefits include: WELLHUB: Free Gold membership with access to onsite gyms and studios, digital fitness programs, and online wellness resources for meditation, nutrition, mental wellbeing support, and more! Add up to three family members to your plan, ensuring access to wellness for those who matter most to you. HEALTHCARE: Health insurance. FLEXIBLE WORK: As a Flexible First company, we offer hybrid and remote options to give you the freedom to work in a way that suits you. The model for this specific role can be discussed with your recruiter and hiring manager. We offer all employees a one-time reimbursement to set up their home office equipment and a monthly work allowance to help cover the costs of working from home. FLEXIBLE SCHEDULE: Flexibility for us isn’t just about where we work—it also means being able to shape how and when we get things done. Together with their leaders, employees define schedules that align with their time zones, team needs, and personal routines. PAID TIME OFF: We know how important it is to take time away from work to recharge. Employees receive a minimum of 25 days paid holiday per year with an additional day for each year of tenure (up to 5) in addition to annual holidays (including an extra holiday on your birthday!). PARENTAL LEAVE: Welcoming a new child is one of the most special moments in your life. Take the time to be present and enjoy your growing family. We offer 100% paid parental leave to all new parents. Parents giving birth are eligible for an extended leave and a ramp-back period to return part-time while they get settled. CAREER GROWTH: Access world-class platforms, participate in interactive sessions, build your personalized development roadmap, and explore internal opportunities. We focus on continuous learning and feedback to support your journey toward personal and professional success. CULTURE: You’ll join a team of passionate people who come together to break boundaries, support each other, and create a meaningful impact in workplace wellness. We win together, building trust through open communication and a culture where every perspective matters. Learn more about our shared culture and values here. And to get a glimpse of life at Wellhub… Follow us on Instagram @lifeatwellhub and LinkedIn ! Wellhub was named one of the Best Engineering Teams and Top IT Companies to Work For in Portugal! Join a team where technology, purpose, and wellbeing come together. Read more about our award here. Diversity, Equity, and Belonging at Wellhub We aim to create a collaborative, supportive, and inclusive space where everyone knows they belong. At Wellhub, we welcome and celebrate your authentic self. Wellhub is committed to creating a diverse work environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, gender identity or expression, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other basis covered by appropriate law. Our commitment to inclusion also extends to how we recognize and reward our people. We’re proud to be Syndio Fair Pay Certified, reflecting our ongoing dedication to equitable and fair pay practices across our global team. 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