At Wellhub (Permanent), in Portugal
Salary: €57.000 - €72.000
Expires at: 2026-12-09
Remote policy: Full remote

THE OPPORTUNITY

We are hiring a Senior Backend Software Engineer in our Billing team 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.

Main requirements

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.

Benefits & Perks

WHAT WE OFFER YOU

We're a wellness company that is committed to the health and wellbeing of our employees. Our benefits include:

WELLHUB: We believe in our mission and encourage our employees and their families to take care of their wellbeing too. Access digital fitness programs, and online wellness resources for meditation, nutrition, mental health support, and more. You will receive the Gold plan at no cost, and other premium plans will be significantly discounted.

FITNESS: Additional fitness subsidy to access onsite gyms and fitness studios.

FLEXIBLE WORK: At Wellhub, flexibility fosters a happier, healthier, and more productive work environment for everyone. As a Flexible First company, we offer two work model options: flexible hybrid and full remote, and make the office a place for collaboration, community, and team building. The model for this role can be discussed with your recruiter and hiring manager. We offer all employees a home office stipend and a monthly flexible work allowance to help cover the costs of working from home.

FLEXIBLE SCHEDULE: We understand that together, Wellhubbers and their leaders can make the best decisions for their own individual scopes. This includes flexibility to adjust their working hours based on their personal schedule, time zone, and business needs.

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 and we want our employees to take the time to be present and enjoy their growing family. We offer 100% paid parental leave to all new parents and extended maternity leave.

CAREER GROWTH: Outstanding opportunities for personal and career growth. That means we maintain a growth mindset in everything we do and invest deeply in employee development.

CULTURE: An exciting and supportive environment filled with passionate individuals from all over the world! You’ll partner with global colleagues and share in the success of a high-growth technology company disrupting the health and wellness space. Our value-based culture of trust, flexibility, and integrity makes this possible every day.

Diversity, Equity, and Belonging at Wellhub

We aim to create a collaborative, supportive, and inclusive space where everyone knows they belong.

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.

Senior Software Engineer | Billing