Back-end Engineer

Back-end Engineer Winona About Winona Winona is one of the leading telemedicine companies providing HRT for women in menopause. We’ve built all of our technology in house including an EHR, patient care admin system, patient portal, website, marketing technology, etc. Winona has two compounding pharmacies and a team of in‑house physicians providing world‑class care via a fully vertically integrated business model. About the Role We’re looking for a Back‑end Engineer to join our app product team and help us develop and maintain the backend codebase and critical integrations for our Winona product. In this role, you will play a key part in the fast adaptation of our product team systems to support internal stakeholders like doctors and customer support, ensuring the reliability and scalability of our telehealth platform through new features and maintenance of key systems. Seniority Level Junior‑Mid Level Key Responsibilities Build, maintain, and improve backend services and APIs that power the Winona platform. Implement and maintain integrations with third‑party services and tools, particularly Stripe. Design, implement, and optimize backend systems and architecture. Ensure robust authentication, authorization, and security mechanisms to protect patient data, including experience with OIDC. Troubleshoot, debug, and resolve backend issues, and be able to independently fix production systems. Collaborate closely with internal stakeholders and cross‑functional teams to deliver features and solutions. Write clean, well‑documented, and testable code following engineering best practices. Participate in code reviews and contribute to technical discussions around systems design and scalability. Provide reliable coverage for backend support during U.S. business hours. Qualifications At least 3 years of professional software development experience, with a significant focus on backend engineering. Strong experience in building backend platform services. Proficiency with ExpressJS, PostgreSQL, RESTful APIs, Stripe, and OIDC. Strong programming skills in a modern backend language (Node.js, Python, Go, or Java). Deep technical understanding of backend engineering principles, including database design, API development, and system architecture. Experience in maintaining and documenting APIs using OpenAPI Specification 2 (OAS2) is a plus. Hands‑on experience with various authentication mechanisms (e.g., OAuth2, JWT, SSO). Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and containerization technologies (e.g., Docker, Kubernetes). Hands‑on experience with agile development methodologies and DevOps practices. Strong communication skills, able to translate technical concepts clearly to technical and non‑technical audiences. Ability to adapt quickly to new technologies and changing business needs. A personal computer with stable internet capable of efficiently running these development tools and applications. What’s in it for you? Work wherever you choose. Unlimited Paid Time off. Paid non‑working holidays per country of residence. Pro‑rated 13th‑month bonus in select regions. Referral bonuses. Financial support for online courses. Fun and casual work environment. Employee engagement activities and virtual gatherings. We are a diverse, global team Equal Employment Opportunity Winona provides equal employment opportunities to all qualified individuals without regard to race, color, religion, sex, gender identity, sexual orientation, pregnancy, age, national origin, physical or mental disability, military or veteran status, genetic information, or any other protected classification. Equal employment opportunity extends to all aspects of employment including, but not limited to, recruitment, hiring, training, promotion, demotion, transfer, leaves of absence, and termination. Winona takes allegations of discrimination, harassment, and retaliation seriously and will promptly investigate such behaviors. #J-18808-Ljbffr