Senior Algorithms Software Engineer

6 Months ago • 5 Years + • Software Development & Engineering

Job Summary

Job Description

As a Senior Algorithms Software Engineer at Sword Health, you will be part of the Applied Algorithms team, designing and implementing real-time algorithms that enhance the guided exercise experience. You will write efficient and scalable code, contribute to technical decisions, collaborate with other teams, and iteratively improve the product through data-driven analysis. Responsibilities include designing and implementing algorithms, collaborating with other teams, writing and maintaining code, and contributing to technical decisions. This role requires a strong mathematics or engineering background and the ability to quickly grasp complex technical concepts. The team builds software for complex problems using technical and innovative solutions.
Must have:
  • 5+ years solving complex problems in domains like Mathematics.
  • 5+ years of software development experience with design patterns.
  • Strong mathematics/engineering background.
  • Ability to interface with non-technical stakeholders.
  • Ability to visualize and interpret various data types.
  • Critical thinking and self-direction with a results-oriented mindset.
  • Ability to collaborate effectively as a team.
Good to have:
  • Experience working in a fast-paced environment.
  • Experience with mobile app development.
  • Experience with projects from ideation to maintenance.
  • Experience with game development or machine learning.
Perks:
  • Health, dental and vision insurance
  • Meal allowance
  • Equity shares
  • Remote work allowance
  • Flexible working hours
  • Work from home
  • Discretionary vacation
  • Snacks and beverages
  • English class

Job Details

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 $3 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 900+ (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.



Algorithms Team:


Our Algorithms team is a versatile Software Engineering team. They build production-ready software for complex problems that require technical and innovative solutions. The team combines:

- software engineering ability;

- technical expertise and versatility - and the ability to learn fast (in fields such as Computer Vision, Signal Processing, Kinematics, Control, Data Science, etc);

- product awareness.


The largest example of their work is the motion tracking and motion analysis engine that enables our AI Care Specialist to guide our members during their exercise sessions:

- providing multi modal real-time feedback;

- collecting valuable movement metrics.


What you’ll be doing:
  • Work as a part of the Applied Algorithms team, designing and implementing real-time algorithms that power a state of the art guided exercise experience;
  • Implement features that include the above algorithms or interact with existing algorithms directly in a large production codebase (Java);
  • Write well-designed, efficient, and scalable code and contribute significantly to technical decisions;
  • Collaborate with other teams, contributing to requirement definition and ensuring deliverables are aligned with product goals;
  • Troubleshoot, debug, maintain code and documentation and create tests and validation processes;
  • Iteratively improve the product with data-driven analysis;
  • Help grow the team by defining and promoting best practices and mentoring more junior engineers.


What you need to have:
  • 5+ years of experience in solving complex and ambiguous problems with software in domains such as Mathematics, Data Science, Signal Processing, Control, etc;
  • 5+ years of experience in software development, with solid knowledge of design patterns and system design;
  • A strong mathematics/engineering background - with the ability to dive deep into complex technical concepts quickly;
  • Ability to interface with non-technical stakeholders;
  • Ability to visualize and interpret data of different types (tabular, time-series, relational databases, etc.);
  • Critical thinking & self-direction, with a results-oriented mindset;
  • Willingness and ability to collaborate effectively as a team to reach common goals.


What we would love to see:
  • Experience working in a fast-paced environment and wearing different hats;
  • Experience with mobile app development;
  • Experience working in projects from ideation to completion and maintenance (including releasing and iterating);
  • Experience with game development or machine learning.


To ensure you feel good solving a big Human problem, we offer:
  • A stimulating, fast-paced environment with lots of room for creativity;
  • A bright future at a promising high-tech startup company;
  • Career development and growth, with a competitive salary;
  • The opportunity to work with a talented team and to add real value to an innovative solution with the potential to change the future of healthcare;
  • A flexible environment where you can control your hours (remotely) with unlimited vacation;
  • Access to our health and well-being program (digital therapist sessions);
  • Remote or Hybrid work policy: We have offices in Porto and Lisbon, so if you want to have face-to-face contact you can always work from there.


€49,532 - €69,398 a year
Base: €32,158 - €50,534
Variable: €2,607 - €4,097
Net equity value per year: €14,767

These compensation bands are just the starting point. Once someone joins and proves they’re outlier talent, we adjust quickly to ensure their compensation aligns with their impact.

Our job titles may span more than one career level. Actual pay is determined by skills, qualifications, experience, location, market demand, and other factors. Compensation details listed in this posting reflect the base salary and any potential variable, bonus or sales incentives, and the Company’s estimation of the value of private company stock options, if applicable. The pay range is subject to change, future value of company stock options is not guaranteed, and compensation may be modified in the future. In addition to our total compensation, Sword offers a number of benefits as listed below.

Portugal - Sword Benefits & Perks:


• Health, dental and vision insurance

• Meal allowance

• Equity shares

• Remote work allowance

• Flexible working hours

• Work from home

• Discretionary vacation

• Snacks and beverages

• English class



Note: 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.

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About The Company

Porto, Porto District, Portugal (Hybrid)

United States (Remote)

Porto, Porto District, Portugal (Hybrid)

Porto, Porto District, Portugal (Hybrid)

Porto, Porto District, Portugal (Hybrid)

Portugal (Hybrid)

Porto, Porto District, Portugal (Hybrid)

Porto, Porto District, Portugal (Hybrid)

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