Senior Backend Engineer – AI Platform

Senior Backend Engineer ​​​​​​- AI Platform

We are entering a new era of AI agents transforming everyday work! Our partner is building cutting-edge AI solutions to support construction engineers and architects in tackling complex challenges. Partnering with leading U.S. construction companies and institutions and aiming to revolutionize the Architecture, Engineering, and Construction (AEC) industry.

Born from the industry’s need for smarter project management, this recently funded start-up has already earned the trust of multiple clients in the US. Their technology is driving real-world impact, streamlining workflows, and improving every phase of the construction process.

Would you like to join a team of world-class engineers – spanning software, AI, and construction – shaping the future of AEC?

As a Senior Backend Engineer, you will design, optimize, and scale the systems that handle complex data ingestion, event-driven workflows, and enterprise integrations. This role blends backend engineering with a focus on system architecture and cloud technologies.

⚙️ What You’ll Work On:

• Create and maintain core components, including microservices and APIs.
• Develop robust solutions for high-volume and diverse data sources.
• Manage context and optimize for complex workflows involving AI features.
• Leverage services like RDS and SQS to enhance system performance and reliability.
• Ensure code quality and system observability through rigorous testing practices.
• Work closely with AI engineers and other backend developers to integrate AI services into the platform.
• Focus on system stability and maintainability while managing operational costs.

🤖 Your Background:

• 5+ years of professional software development experience, particularly in backend systems.
• Expert proficiency in Python; experience with FastAPI or similar frameworks is highly valued.
• Familiarity with AWS managed services and building resilient cloud systems.
• Strong background in working with SQL databases (Postgres) and data processing techniques.
• Proven ability to design high-availability systems with a focus on architectural integrity.
• Understanding of designing systems that effectively handle asynchronous processes.
• Fluency in English.

⭐ Nice to Have:

• Experience with Docker:
• Knowledge of Search Systems
• Understanding of Observability Practices

🎁 Perks and Benefits  

• Hybrid job with a modern office 2 times per week in Sofia
• 25 days PTO
• Options package
• Team Building abroad
• Competitive salary recognizing your expertise
• A supportive, fun team where your ideas matter
• A dynamic, creative work environment
• Work with solidly funded AI startup in a $5 Billion industry
• Growth opportunities

🧑‍💻 Interview Process

1. HR Interview
2. Interview with Hiring Manager
3. Technical Assignment and Technical Discussion
4. Final Interview

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Apply Now by sending your CV in English with contact details in it 😉

👁️‍🗨️ Only shortlisted candidates will be invited to an interview.

🔐 Your job search is strictly confidential.