Backend Engineer, H1
Healthcare
$110-135k
+ RSUs
Platform connecting healthcare professionals
Be an early applicant
Platform connecting healthcare professionals
501-1000 employees
Be an early applicant
$110-135k
+ RSUs
501-1000 employees
Company mission
To create a healthier future by delivering a platform that connects stakeholders across the healthcare ecosystem and encourages purposeful relationships.
Role
Who you are
- This role is ideal for an engineer who is growing their full-stack skill set, eager to take on increasing ownership, and excited to solve real-world distributed systems challenges in a collaborative environment
- You're a curious and motivated engineer who enjoys solving technical problems and taking increasing ownership of the software you build
- You're comfortable working across frontend and backend technologies and thrive when collaborating with experienced teammates who help you grow
- You're eager to deepen your knowledge of distributed systems and cloud-native development, and you're excited to build high-impact products that improve healthcare outcomes
- 3–5 years of professional software engineering experience building production-grade applications
- Experience developing APIs, backend services, and/or microservices in a distributed systems environment
- Hands-on experience with TypeScript and Node.js, with exposure to delivering customer-facing full-stack features
- Working knowledge of PostgreSQL, including database design, querying, and basic performance considerations
- Familiarity with Kafka or other event-driven messaging systems
- Exposure to Elasticsearch or similar search technologies
- Familiarity with cloud-native development practices using Kubernetes and AWS
- Solid understanding of software fundamentals, including debugging, testing, and writing maintainable code
- Good communication and collaboration skills, with a willingness to ask questions and contribute to team discussions.Bonus Skills
- Experience with Python/PySpark or similar technologies for data processing workflows
- Exposure to Golang
- Interest in or early experience building AI-powered applications or integrating LLM APIs (e.g., OpenAI, Anthropic); familiarity with RAG architectures or frameworks such as LangChain or Vercel AI SDK is a bonus
What the job involves
- The MCU Engineering team plays a critical role in delivering the scalable platform capabilities that power H1's products
- Our engineers build the services, APIs, event-driven systems, and user experiences that transform complex healthcare data into fast, reliable, and intuitive products used by life sciences organizations around the world
- Working across modern cloud infrastructure, distributed systems, and AI-enabled technologies, this team solves challenging technical problems at scale while partnering closely with Product, Design, and Data Engineering to continually improve the performance, reliability, and capabilities of our platform
- As a Software Engineer II on our MCU team, you will contribute to the delivery of meaningful product capabilities across the full stack, working closely with senior engineers, Product, and Design to build scalable, high-performing applications that power H1's platform
- Contribute to features end-to-end from implementation and testing through deployment and production support, with guidance from senior team members
- Develop and maintain APIs, backend services, and distributed microservice architectures
- Implement and optimize PostgreSQL schemas, queries, and indexes for large-scale applications
- Build and maintain Kafka-based event-driven systems, including producers, consumers, and consumer groups
- Develop and optimize Elasticsearch indexes, mappings, and search queries for high-volume search workloads
- Support applications running in Kubernetes environments, including basic operational troubleshooting
- Contribute to AWS-based cloud infrastructure and participate in Spark and EMR data workflows supporting the platform
- Build and maintain full-stack applications across React frontends and NestJS backend services
- Participate in code reviews and architecture discussions, learning and applying engineering best practices
- Partner with Product and Design to translate business requirements into reliable technical solutions
- Contribute to improving system reliability, observability, and performance through thoughtful engineering decisions
Application process
- As part of H1’s hiring process, all candidates are required to participate in an in-person final interview. Depending on your location, this may require travel
- Anticipated role close date: 10/15/2026
Our take
The increasing costs and difficulty of drug discovery requires healthcare organizations and pharmaceutical companies to be able to quickly connect to professionals and thought leaders with specific credentials or research history. H1 addresses these needs by allowing life sciences companies, hospitals and healthcare systems to locate the professionals they need.
H1 is the world’s largest healthcare database. It acts a bit like LinkedIn for healthcare professionals, and has already built a network of more than 9 million users. It has also built a corporate client base of 250 enterprises which is able to access its data which spans more than 250 million patients and over 10 billion health care claims.
The company graduated from Y Combinator's accelerator program in January 2020, and has since raised considerable funding, expanded into Europe and Asia, and built out its data network. It continues to attract investment, most lately from CVS Health Ventures, which showcases the industry regard for its offering.
Freddie
Company Specialist at Welcome to the Jungle
Insights
-7% employee growth in 12 months
Company
Funding (last 2 of 6 rounds)
May 2026
$40m
LATE VC
Jun 2022
$23m
SERIES C
Total funding: $227.2m
Company benefits
- Flexible work hours
- Commuter benefits
- Stock options
- Computer setup
- Work from home opportunities
- Health & life insurance
- Retirement options
- Unlimited PTO
- Flex Give & Flex Spend
- Impactful BRGs
Company HQ
Flatiron District, New York, NY
Leadership
Ariel Katz
(CEO & Co-Founder)Previously founded acquired online database, ResearchConnection, before co-founding H1.
Ian Sax
(Co-Founder)Ian has been building businesses for over two decades. He began his start up career at The Carson Group, where he built the firm's global people, institution, and shareholder platform.
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