Backend Engineer

Role Overview

We are seeking a Backend Engineer to develop and optimize high-performance backend systems for scientific computing applications. This role is ideal for someone who thrives on designing scalable architectures, optimizing system performance, and enabling groundbreaking discoveries in computational science. You will work closely with researchers, full-stack developers and product engineers to build robust, efficient and scalable backend solutions.

Key Responsibilities

• Design, develop and maintain high-performance backend services for scientific computing applications
• Architect scalable and efficient database structures using MongoDB and other database solutions
• Build and optimize APIs (RESTful & GraphQL) to support complex computational workflows
• Implement cloud-based solutions leveraging AWS services (Lambda, EC2, S3, RDS)
• Ensure system security, reliability and scalability best practices including CI/CD pipelines, Docker and Kubernetes
• Collaborate with domain experts to translate scientific requirements into backend solutions
• Optimize backend performance for handling large-scale computations and high-volume data processing

Qualifications

Required Skills:

• Proficiency in Python, JavaScript and TypeScript
• Strong experience with backend frameworks. (e.g., Node.js, FastAPI, Django or Express.js)
• Expertise in MongoDB and other database optimization techniques
• Hands-on experience with AWS services such as Lambda, ECs, S3 and RDS
• Proficiency in designing and managing RESTful & GraphQL APIs
• Experience with containerization (Docker, Kubernetes) and DevOps tools like GitHub Actions
• Strong problem solving skills with focus on performance optimization and scalability

Preferred Skills:

• Background in computational science or experience with large scale data processing
• Knowledge of numerical methods, parallel computing or scientific simulations
• Experience in high performance computing environments
• Familiarity with message queues (Kafka, RabbitMQ) for handling distributed workloads
• Understanding of security best practices in cloud based environments

What We Offer

• A unique opportunity to be part of one of the most promising start-ups within materials discovery on an ambitious path to achieve unicorn status
• Involvement in solving some of the world’s most complex challenges supporting a greener future
• A welcoming, diverse, and entrepreneurial workplace located in Søborg, Denmark
• A vibrant atmosphere with a flat hierarchy, open collaboration and idea-sharing
• Possibility to enter our warrant program at an early stage
• Free coffee to fuel your creative energy! ;-)

For more information or questions please contact us at jobs@phasetree.ai or phone number +45 52 39 98 95