Natural Cycles° is a leading women’s health company that developed the world’s first birth control app, used by millions globally. We are a fast growing startup, and we promote an international working environment filled with smart and ambitious colleagues based in Stockholm, Geneva, New York, and remotely. Our mission is to pioneer women’s health through research and passion, empowering every woman with the knowledge she needs to take charge of her health. We are looking for a Security & Infrastructure Engineer to build and maintain secure tooling, integrations and infrastructure that helps Natural Cycles move fast while managing risk. The role develops internal tools, performs security reviews and security testing, improves monitoring of employee and AI-agent activity, enables teams to prototype internal tools and AI integrations safely, and turns cybersecurity and regulatory requirements into practical controls. Please note that we are hiring for this role in Sweden. What you will be doing Develop integrations, such as Slackbots and internal assistants, to improve Infrastructure and Security workflows. Build and maintain infrastructure that enables safe internal experimentation with POCs, helper apps, AI integrations, and automations. Improve monitoring and detection of employee and AI-agent activity, including risks such as shadow IT, unsafe integrations, excessive permissions, and data exposure. Protect company resources in a risk-based way according to their criticality, sensitivity, and regulatory relevance. Use AI tools, mainly Claude, to rapidly develop code, infrastructure as code, automations, security tooling, and documentation. Translate cybersecurity requirements, including NIS2 and medical device security expectations, into practical engineering work. Perform security reviews, simpler penetration tests, threat modelling, and risk assessments for internal applications, integrations, and infrastructure changes. Work independently and proactively while staying aligned with company priorities and risk appetite. What skills and experience we think you have Strong hands-on experience with software development, infrastructure and cloud platforms. Ability to build internal tools, automations, AI integrations, and infrastructure components using modern engineering practices. Comfortable using AI coding assistants, especially Claude or similar tools, while maintaining quality, security, and review discipline. Basic understanding of identity and access management, logging, monitoring, secrets management, and secure system design. Ability to assess technical and business risk, prioritise mitigations, and document decisions clearly. Ability to work independently in ambiguous situations while seeking alignment when needed. Nice to have: Practical cybersecurity experience, including security reviews, risk assessments, threat modelling, vulnerability assessment, or penetration testing. Familiarity with compliance-driven environments and willingness to work with NIS2, medical device security, and quality-system requirements. DevOps, platform engineering, or infrastructure as code. What we offer Flexible work arrangement - you will be part of a team based in and around Stockholm that values effective collaboration and transparent communication, irrespective of work location Professional development - you will work alongside knowledgeable colleagues in the continuous growth and skill enhancement environment Modern technology - you will leverage innovative technologies and tools, within an environment that empowers you to contribute ideas and take ownership of your work Impactful projects - you will contribute to groundbreaking projects that redefine industry standards and create tangible value Commitment to quality - you will join a dynamic and progressive organization that prioritizes profitable, long-term product development Location We are remote-friendly, but we find great value in being able to connect with our teams in person. Most of the team you will work with is located in Sweden. Sounds interesting? If you want to be part of a successful team, we encourage you to apply for this position as soon as possible. We look forward to hearing from you! How to apply To apply, just upload your CV and answer the questions on the application form. Keep in mind that we can't accept applications through email because of GDPR, and only applications submitted via the career site (and in English) will be considered. At Natural Cycles we value diversity and inclusion because we know that teams with people from different backgrounds and experiences are stronger. We welcome candidates from all walks of life and are committed to creating an inclusive environment for all employees and candidates. Note: We are not looking for consultants or help from recruitment agencies

Natural Cycles° is a leading women’s health company that developed the world’s first birth control app, used by millions globally. We are a fast growing startup, and we promote an international working environment filled with smart and ambitious colleagues based in Stockholm, Geneva, New York, and remotely. Our mission is to pioneer women’s health through research and passion, empowering every woman with the knowledge she needs to take charge of her health. As a Software Engineer (Data) you will assist and maintain the data initiatives at the company, by providing validated data and the infrastructure to calculate key performance indicators to different stakeholders while still safeguarding our users' privacy and anonymity into your work. Please note that we are hiring for this role in Stockholm, Sweden. What you will be doing Maintain and improve our data warehouse: improve data models, performance of views and reports, etc. Maintain and improve our data pipelines: integrate new sources, improve monitoring and performance, etc. Investigate and report data quality issues and data inconsistencies Collaborate with stakeholders and other departments by providing dashboards and reports Collaborate with data scientists by providing adequate raw data for their needs Automate routine operations related to data Assist the Senior Data Engineer with incoming requests for change What skills and experience we think you have General Some understanding of data infrastructure and deployment pipelines Good knowledge of analyst tools to allow data visualization (we use Tableau and Mixpanel) Great analytical skills to conduct root cause analysis and similar investigations Collaborate with R&D teams as well as stakeholders from other teams, such as medical product and regulatory Data Knowledge of ETL and data pipelines (written in Python and Typescript) Interest in Business Intelligence reporting tools (we currently use Tableau) SQL (data definition, data manipulation, analytical functions) Python Backend RESTful API Typescript (or strong bases in another software development language) What we offer Flexible work arrangement - you will be part of a team based in and around Stockholm that values effective collaboration and transparent communication, irrespective of work location Professional development - you will work alongside knowledgeable colleagues in the continuous growth and skill enhancement environment Modern technology - you will leverage innovative technologies and tools, within an environment that empowers you to contribute ideas and take ownership of your work Impactful projects - you will contribute to groundbreaking projects that redefine industry standards and create tangible value Commitment to quality - you will join a dynamic and progressive organization that prioritizes profitable, long-term product development Location We are remote-friendly, but we find great value in being able to connect with our teams in person. For this role, you’ll collaborate closely with our Senior Data Engineer, who is based in Stockholm. Sounds interesting? If you want to be part of a successful team, we encourage you to apply for this position as soon as possible. We look forward to hearing from you! How to apply To apply, just upload your CV and answer the questions on the application form. Keep in mind that we can't accept applications through email because of GDPR, and only applications submitted via the career site (and in English) will be considered. At Natural Cycles we value diversity and inclusion because we know that teams with people from different backgrounds and experiences are stronger. We welcome candidates from all walks of life and are committed to creating an inclusive environment for all employees and candidates. Note: We are not looking for consultants or help from recruitment agencies

Natural Cycles° is a leading women’s health company that developed the world’s first birth control app, used by millions globally. We are a fast growing startup, and we promote an international working environment filled with smart and ambitious colleagues based in Stockholm, Geneva, New York, and remotely. Our mission is to pioneer women’s health through research and passion, empowering every woman with the knowledge she needs to take charge of her health. As a Clinical Research Intern, you will support the trials management team across a range of tasks while serving as a point of contact for research participants. Day-to-day, this includes monitoring data collection, troubleshooting, managing inventory, and assisting with logistics — all while helping look after participant well-being and engagement. You will work closely with the MAD (Medical Algorithm and Data) team and collaborate cross-functionally with Finance, IT, and HR. The role is primarily local, supporting a Stockholm-based team. As most participant communication — both verbal and written — takes place in the Stockholm area, proficiency in Swedish is a plus. Strong English skills, both spoken and written, are essential. Given the nature of clinical trials, workload can vary, and we are looking for someone who is comfortable working flexible hours. Please note that we are hiring for this role in Stockholm, Sweden. This is a fixed-term position with an expected end date of December 2026. What you will be doing You will assist the team with the operational management and oversight of clinical trials, from the initial setup to participant offboarding. Your focus will be on the following areas: Monitor the recruitment of the trial participants and the collection of signed documentation. Assist with onboarding trial participants, including scheduling and preparing materials. Assist with trial daily operations: monitor data collection, address participants' questions and issues, schedule additional meetings when necessary, and send out follow-up emails. Oversee the inventory and shipment of replacement devices and other materials. Occasionally, you will test devices yourself. Assist with the offboarding of the trial participants, gather the study material when applicable, and coordinate with the Finance team to ensure the compensation is processed. What skills and experience we think you have You have some experience in a customer support role, assisting with research projects, or similar. You are skilled at conveying complex information in a simplified and straightforward manner. You are skilled in troubleshooting and have the patience to assist less experienced users. You are organized and structured, and you are good at preparing and maintaining documentation. You have good attention to detail; you easily spot small mistakes. You are comfortable working across teams and managing multiple priorities at once. You are fully proficient in English (both written and spoken). You are passionate about women’s health and research. You are ready to adjust to a flexible schedule and fluctuating workload. You are based in the Stockholm area and available to work in July 2026. What we offer Flexible work arrangement - you will be part of a team based in and around Stockholm that values effective collaboration and transparent communication, irrespective of work location Professional development - you will work alongside knowledgeable colleagues in the continuous growth and skill enhancement environment Modern technology - you will leverage innovative technologies and tools, within an environment that empowers you to contribute ideas and take ownership of your work Impactful projects - you will contribute to groundbreaking projects that redefine industry standards and create tangible value Commitment to quality - you will join a dynamic and progressive organization that prioritizes profitable, long-term product development Location We are remote-friendly, but we find great value in being able to connect with our teams in person. For this internship, we are looking for someone based in the Stockholm area who is available to work onsite. Sounds interesting? If you want to be part of a successful team, we encourage you to apply for this position as soon as possible. We look forward to hearing from you! How to apply To apply, just upload your CV and answer the questions on the application form. Keep in mind that we can't accept applications through email because of GDPR, and only applications submitted via the career site (and in English) will be considered. At Natural Cycles we value diversity and inclusion because we know that teams with people from different backgrounds and experiences are stronger. We welcome candidates from all walks of life and are committed to creating an inclusive environment for all employees and candidates. Note: We are not looking for consultants or help from recruitment agencies

Natural Cycles° is a leading women’s health company that developed the world’s first birth control app, used by millions globally. We are a fast growing startup, and we promote an international working environment filled with smart and ambitious colleagues based in Stockholm, Geneva, New York, and remotely. Our mission is to pioneer women’s health through research and passion, empowering every woman with the knowledge she needs to take charge of her health. We're looking for a Senior Frontend Engineer to join our Product Growth team with a focus on optimizing the web sign-up funnel. In this role, you will take ownership of the technical direction of our web sign-up experience – shipping high-quality, accessible, and performant user interfaces, and helping more people discover and get started with Natural Cycles. You will play a key role in shaping the first touchpoints of our web experience, working in a fast-paced, data-informed environment where your code has a direct and visible impact on conversion and growth. You will also be a technical mentor for junior engineers on the team and contribute to raising the bar across the codebase. Please note that we are hiring for this role in Sweden. What you will be doing Owning and driving the technical delivery of the web-based sign-up funnel, from architecture decisions to shipping polished user interfaces. Building and running A/B experiments, iterating rapidly based on real-time results and data insights. Setting the standard for code quality, performance, and accessibility within the team. Mentoring and supporting junior engineers through code reviews, pairing, and technical guidance. Collaborating closely with product managers, designers, and analysts to deliver user-facing features of the highest quality. Contributing to a healthy, scalable, and sustainable codebase. Working hands-on with analytics and data, taking a data-driven approach to frontend decisions wherever possible. Ensuring continuous delivery of new releases while working in an agile way. What skills and experience we think you have 5+ years of professional experience in frontend development, with a strong portfolio of shipped web products. Experience working with backend or full-stack development Deep expertise in TypeScript and the Angular framework (or equivalent experience with another modern component-based framework and the ability to ramp up quickly). A strong command of modern CSS – Flexbox, Grid, and experience with pre/post-processors such as SASS or PostCSS. Solid experience building responsive, performant, accessible, and inclusive user interfaces. Experience with A/B testing and conversion rate optimization. Comfort working with data and analytics tools to inform and validate decisions. Experience with Git, GitHub, pull requests, and conducting thorough code reviews. The ability to communicate clearly and collaborate effectively across disciplines. It's a plus if you also have Leadership experience Background in growth-focused product teams or experience with web sign-up funnels. Commercial acumen and an understanding of business drivers. A passion for women's health. What we offer Flexible work arrangement - you will be part of a team based in and around Stockholm that values effective collaboration and transparent communication, irrespective of work location Professional development - you will collaborate with industry leading developers, promoting continuous growth and skill enhancement Modern technology - you will leverage innovative technologies and tools, within an environment that empowers you to contribute ideas and take ownership of your work Impactful projects - you will contribute to groundbreaking projects that redefine industry standards and create tangible value Commitment to quality - you will join a dynamic and progressive organization that prioritizes profitable, long-term product development Location We are remote-friendly, but we find great value in being able to connect with our teams in person. Most of the Product Growth team you will work with is located in Stockholm, and the team occasionally meets in the office for collaboration and face-to-face time. Sounds interesting? If you want to be part of a successful team, we encourage you to apply for this position as soon as possible. We look forward to hearing from you! How to apply To apply, just upload your CV and answer the questions on the application form. Keep in mind that we can't accept applications through email because of GDPR, and only applications submitted via the career site (and in English) will be considered. At Natural Cycles we value diversity and inclusion because we know that teams with people from different backgrounds and experiences are stronger. We welcome candidates from all walks of life and are committed to creating an inclusive environment for all employees and candidates. Note: We are not looking for consultants or help from recruitment agencies

Natural Cycles° is a leading women’s health company that developed the world’s first birth control app, used by millions globally. We are a fast growing startup, and we promote an international working environment filled with smart and ambitious colleagues based in Stockholm, Geneva, New York, and remotely. Our mission is to pioneer women’s health through research and passion, empowering every woman with the knowledge she needs to take charge of her health. We’re looking for a Growth Analytics Lead to help us scale user growth and revenue growth across our international markets. In this role, you will own and evolve how we measure, understand and optimize performance across the entire growth funnel – from acquisition and activation to retention and monetization. Sitting at the intersection of growth, marketing, product and data, you will play a key role in shaping our growth strategy by turning complex data into actionable insights. Your work will directly impact how we invest across paid, owned and organic channels, ensuring we drive efficient and scalable growth with a strong focus on CAC, LTV and unit economics. Please note that this role is based in Stockholm, Sweden. What you will be doing: Owning and developing Natural Cycles’ growth analytics framework across all markets, covering the full funnel from acquisition and activation to retention and revenue. Definining, monitoring and analyzing key performance metrics such as CAC, LTV, payback periods and overall unit economics across paid, owned and organic channels. Leading attribution and incrementality efforts, including designing experiments and evaluating channel effectiveness to guide investment decisions. Partnering closely with growth, marketing and product teams to identify opportunities, inform strategy and prioritize high-impact initiatives. Building and maintaining scalable dashboards, reporting and analytical models using tools such as Snowflake, Mixpanel and Tableau to provide visibility into performance and key growth drivers. Analyzing user behavior across app and web to uncover insights that improve conversion, engagement and retention. Acting as a strategic thought partner to leadership, translating complex analyses into clear, actionable recommendations that drive business impact. This role requires a highly hands-on operator who can work end-to-end – from deep-dive analysis to shaping strategy and influencing decision-making across the organization. What skills and experience we think you have 5+ years of experience in growth analytics, marketing analytics or a similar role in a subscription, app or digital product environment. Strong experience analyzing performance across the full funnel, with a deep understanding of acquisition, activation, retention and monetization dynamics. Proven expertise in attribution modeling and incrementality testing (e.g. geo experiments, lift studies, MMM or similar approaches). Strong understanding of key growth metrics such as CAC, LTV, payback periods and overall unit economics, and how to use them to guide decision-making. Advanced analytical skills with strong SQL proficiency and experience working with large-scale datasets in cloud data warehouse environments such as Snowflake, BigQuery or similar technologies. Experience working with product analytics and BI tools such as Mixpanel, Tableau, Looker, Amplitude or similar platforms. Experience working with product and marketing data across mobile apps and web environments. Experience working with mobile apps and/or subscription-based business models is a plus. Strong problem-solving skills and the ability to translate complex analyses into clear, actionable insights. Ability to communicate effectively and collaborate with both technical and non-technical stakeholders What we offer Flexible work arrangement - you will be part of a team based in and around Stockholm that values effective collaboration and transparent communication, irrespective of work location Professional development - you will work alongside knowledgeable colleagues in the continuous growth and skill enhancement environment Modern technology - you will leverage innovative technologies and tools, within an environment that empowers you to contribute ideas and take ownership of your work Impactful projects - you will contribute to groundbreaking projects that redefine industry standards and create tangible value Commitment to quality - you will join a dynamic and progressive organization that prioritizes profitable, long-term product development Location We are remote-friendly, but we find great value in being able to connect with our teams in person. Most of the international marketing team you will work with is located in Stockholm, and the team occasionally meets in the office for collaboration and face-to-face time. Sounds interesting? If you want to be part of a successful team, we encourage you to apply for this position as soon as possible. We look forward to hearing from you! How to apply To apply, just upload your CV and answer the questions on the application form. Keep in mind that we can't accept applications through email because of GDPR, and only applications submitted via the career site (and in English) will be considered. At Natural Cycles we value diversity and inclusion because we know that teams with people from different backgrounds and experiences are stronger. We welcome candidates from all walks of life and are committed to creating an inclusive environment for all employees and candidates. Note: We are not looking for consultants or help from recruitment agencies