Staff Backend Engineer - Core Product
This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Staff Backend Engineer - Core Product in Spain.
This is a unique opportunity to join a high-impact engineering team building advanced AI-driven systems for a complex and highly consequential industry. In this role, you will design and scale backend infrastructure that powers intelligent decision-making workflows, handling fragmented yet high-value datasets with precision and reliability. You’ll contribute to business-critical systems that improve transparency, automation, and operational efficiency at scale. The environment is fast-paced, highly collaborative, and deeply technical, with a strong focus on experimentation, ownership, and measurable customer impact. Working alongside a globally distributed team of experienced engineers and product builders, you will help shape next-generation AI products with real-world applications. This role is ideal for someone who thrives on solving challenging backend problems, building scalable systems, and influencing both architecture and product direction.
Accountabilities:
- Design, develop, and maintain scalable backend systems, services, and APIs that support core product functionality
- Build robust data pipelines, workflows, and infrastructure to improve data quality, system intelligence, and operational performance
- Contribute to architecture decisions and system design with a focus on reliability, scalability, and maintainability
- Collaborate closely with cross-functional teams to translate complex business and technical requirements into production-ready solutions
- Develop and optimize asynchronous workflows and cloud-native backend services in distributed environments
- Improve observability, debugging, testing, and monitoring processes across backend systems
- Drive experimentation, iteration, and continuous improvement initiatives to enhance product performance and decision accuracy
- Mentor engineers, contribute to engineering best practices, and promote a culture of technical excellence and ownership
Benefits:
- Competitive salary package ranging from $100,000 to $185,000 USD depending on experience and location
- Significant equity options package with long-term growth potential
- Fully remote work environment with a globally distributed and collaborative team
- Annual global offsites and regional meetups in international locations
- 20 days of paid time off each year
- Health and wellness support, including gym and healthy living stipends
- Mobile phone reimbursement stipend
- Continuing education and professional development support
- Opportunity to work on impactful AI technologies transforming a multi-trillion-dollar global industry
Requirements:
- 8+ years of professional software engineering experience, with strong expertise in backend development and distributed systems
- Advanced proficiency in Python or other object-oriented programming languages with the ability to quickly adapt to new technologies
- Strong experience designing scalable systems, APIs, and backend architectures in cloud-based environments
- Hands-on experience with serverless technologies, asynchronous processing, and cloud platforms such as AWS
- Solid understanding of relational databases, particularly PostgreSQL, including schema design and performance optimization
- Proven ability to debug complex systems, solve challenging engineering problems, and deliver high-quality production code
- Experience working in fast-paced, high-ownership environments with minimal supervision
- Excellent communication skills and the ability to collaborate effectively across technical and non-technical teams
- Comfortable operating in experimental and iterative product environments focused on rapid learning and innovation
- Experience with generative AI, LLMs, or machine learning infrastructure is considered a strong advantage
