Senior Backend Engineer (Healthtech)

TL;DR

Senior Backend Engineer (Backend): Developing core functionality for customer-facing and internal products within a healthtech platform with an accent on scalable architectures and API design. Focus on building extensible platforms and integrating third-party systems to support millions of users globally.

Location: Hybrid (Sofia, BG) — Must be based in Sofia, BG (office 3 days per week)

Company

hirify.global is a healthtech scale-up providing personalized care across various health categories for over 1 million members globally.

What you will do

• Develop scalable and reliable core functionality for internal and customer-facing products, systems, and data platforms.
• Build extensible architectures to enable the rapid launch of new products and business lines.
• Develop and maintain integrations with third-party systems.
• Create the APIs powering web and mobile platforms for the product portfolio.
• Collaborate with engineers, designers, QAs, and product managers to own features end-to-end from scoping to deployment.

Requirements

• At least 5 years of commercial software engineering experience.
• Proficiency with scalable cloud architectures, design patterns, and best practices.
• Practical experience with CI/CD and Infrastructure-as-code (IaC).
• Experience with relational databases and search engines.
• Strong experience with TDD and writing testable code (unit, integration, performance).
• Must be based in Sofia, Bulgaria to attend the office 3 days per week.

Nice to have

• Degree in Computer Science or equivalent.
• Experience building high-load cloud systems supporting millions of 24/7 users.
• Familiarity with modern JS frameworks.
• Experience working in cross-functional teams.

Culture & Benefits

• High-growth startup environment with a fast-paced role.
• Mission-driven work focused on improving global patient health.
• Strong ownership culture based on the "you build it, you run it" mindset.
• Opportunity for continuous learning and stepping out of your comfort zone.

Hiring process

• Team fit interview with product and tech leaders (45 mins).
• System Design Interview (60 mins).
• Interview with the executive team (45 mins).
• Debrief and offer.