Algorithms Engineer Trainee

Sword Health is on a mission to free two billion people from pain. 
With 67% of members achieving a pain-free life and a 70% reduction in surgery intent, at Sword, we are using AI Care to change lives, and save millions for our 25,000+ enterprise clients across three continents. Today, we hold the majority of industry patents, win 70% of competitive evaluations, and have raised more than $300 million from top venture firms like Founders Fund, Sapphire Ventures, General Catalyst, and Khosla Ventures.
Recognized as a Forbes Best Startup Employer in 2025, this award highlights our focus on being a destination for the best and brightest  talent. Not only have we experienced unprecedented growth since our market debut in 2020,  but we’ve also created a remarkable mission and value-driven environment that is loved by our growing team. With a recent valuation of $4 billion, we are in a phase of hyper growth and expansion, and we’re looking for individuals with passion, commitment, and energy to help us scale our global impact. 
Joining Sword means committing to a set of core values, chief amongst them to “do it for the patients” every day, and to always “deliver more than expected” on behalf of our members and clients.
This is an opportunity for you to make a significant difference on a massive scale as you work alongside 1000+ (and growing!) talented colleagues, spanning three continents. Your charge? To help us build a pain-free world, powered by AI, enhanced by people — accessible to all.
The Sword Trainee Program is not about playing it safe, it’s where your career meets real-world impact. Over 12 months, you’ll be part of a global team using technology to solve human problems at scale, and you’ll do meaningful work from day one. You’ll build and question, and be pushed to think deeper and move faster. Here, you won’t just apply what you learned in school — you’ll stretch it, test it, and turn it into solutions. If you’re looking for purpose, ownership, and a steep learning curve, this is your launchpad. And if you're ready to turn your potential into something that matters, we’re ready for you.
You can expect your work to be impactful in this role, as you contribute to the different products at Sword, from start to finish. This will demand your design and software engineering skills as well as a product-eye to perform data analysis and retrieve insights on the success of our strategies.  
Our Algorithms team is a technically versatile Software Engineering team that thrives at solving complex and ambiguous problems. This is done by implementing (mostly) real-time algorithms that process different types of data. They are the team that builds the engine of our Digital Therapist, the ones behind our motion tracking, either with motion sensors or computer vision. They also contribute to the efforts of extracting insights and developing algorithms used in our wearable devices for Mind (mental health) and Move (movement health), as well as for Bloom (pelvic health).

What you’ll be doing:

• Design and implement algorithms and tooling to support our developments in several fronts, for example, to track pelvic floor movement tracking, sleep, activity and stress;
• Perform data analysis to retrieve insights regarding how to improve existing algorithms and user experience;
• Troubleshoot, debug and maintain documentation;
• Contribute to the quality of the team’s output by developing and executing test plans and creating internal tools and scripts for automation and testing;
• Communicate with product and clinical team to refine requirements and scope of work.

What you need to have:

• Master’s degree in Engineering, Computer Science, Physics or Mathematics;
• Ability to solve complex problems with software;
• Solid knowledge of Python;
• Good technical foundation (data science and related fields) but above all ability to learn about new technical topics;
• Ability to visualize and interpret data of different types;
• Critical thinking, self-direction, results-oriented mindset;
• Ability to collaborate effectively with technical and non-technical stakeholders and within the team.

To ensure you feel good solving a big Human problem, we offer:

• A stimulating, fast-paced environment with lots of room for creativity;
• A start of a bright future at a promising high-tech startup company;
• Access to our health and well-being program (digital therapist sessions);
• Learning opportunities with tailored mentoring;
• Remote or Hybrid work policy;
•  To get to know more about our Tech Stack, check here.

*Please note that this position does not offer relocation assistance. Candidates must possess a valid EU visa and be based in Portugal.

SWORD Health, which includes SWORD Health, Inc. and Sword Health Professionals (consisting of Sword Health Care Providers, P.A., SWORD Health Care Providers of NJ, P.C., SWORD Health Care Physical Therapy Providers of CA, P.C.*) complies with applicable Federal and State civil rights laws and does not discriminate on the basis of Age, Ancestry, Color, Citizenship, Gender, Gender expression, Gender identity, Gender information, Marital status, Medical condition, National origin, Physical or mental disability, Pregnancy, Race, Religion, Caste, Sexual orientation, and Veteran status.