Python Engineer

BlockDelta

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profile Job Location:

Vilnius - Lithuania

profile Monthly Salary: Not Disclosed
Posted on: 3 days ago
Vacancies: 1 Vacancy

Job Summary

Our client is a fast-growing technology company focused on building innovative infrastructure solutions within the digital and data space. Backed by experienced leadership and strong support the business has gained solid traction and operates across multiple regions. They are now looking to expand their team as they continue to scale.

Role Requirement

We are seeking a highly motivated Python Engineer who thrives in high-velocity environments ships end-to-end features and is fluent in AI-assisted development tools. Youll own both ends of the stack - designing backend APIs that process data from hundreds of thousands of contributors building React interfaces that internal teams and clients actually use and solving problems without waiting for someone to tell you what to do.

You move fast without cutting corners communicate proactively and take full ownership of your work. Youre intellectually honest low ego but high standards and have built things youre proud of - side projects open source internal tools - simply because you couldnt help it.

Note: This is not a 9-to-5 job - if you want predictable schedules this isnt the role for you.

Key Responsibilities

  • Develop and manage FastAPI backend services that drive the companys data collection and distribution pipelines. Build APIs for internal tools contributor-facing interfaces and client integrations ensuring reliability high performance and clear documentation.
  • Create review and optimize SQL queries for accuracy and speed on large-scale datasets. Improve PostgreSQL performance through indexing query plan optimization partitioning and connection pooling while designing schemas that scale efficiently with the growing contributor network and project load.
  • Develop and enhance React interfaces for contributors internal operations and client dashboards. Transform complex data processes into intuitive high-performance UIs that remain responsive across platforms.
  • Create and manage background processing systems for handling audio image and video files at scale ensuring reliability monitoring and smooth asynchronous workflows.
  • Collaborate with ML engineers DevOps and data teams to deliver fully integrated features. Take part in architecture discussions and sprint planning while building internal tools that boost overall team productivity.

Required Qualifications

  • 3 years of professional experience building Python FastAPI backends in production
  • Solid experience with React and TypeScript including modern component architecture
  • Proven ability to design and optimize PostgreSQL databases and queries
  • Hands-on experience with Kubernetes Helm and AWS infrastructure
  • Knowledge of object storage systems compatible with S3 experience with containerization technologies like Docker and an understanding of REST API design principles
  • Background task processing experience (Celery RQ SQS or similar)
  • Demonstrated proficiency with AI-assisted development tools (Copilot Cursor Claude Code etc.) and using them to accelerate delivery
  • Track record of shipping end-to-end products side projects open-source contributions or startup experience
  • Comfortable working independently under tight deadlines and making architectural decisions

Bonus Skills

  • Experience with Web3 AI/ML pipelines or data-intensive platforms
  • UI/UX sensibilities for frontend work dashboards and performance optimization

Why Youll Love This Role

  • Founding-level opportunity with equity and stock options
  • Opportunity to own features architecture and processes from day one
  • Fast-paced high-impact environment - your work will shape the future of AI data infrastructure

This is a unique opportunity to contribute to the development of a next-generation multimodal data infrastructure at a fast-growing high-impact company backed by leading investors.

Salary: Highly competitive in line with experience and market standards.

To apply please submit your CV via the link.

For additional information about open vacancies and events w

Our client is a fast-growing technology company focused on building innovative infrastructure solutions within the digital and data space. Backed by experienced leadership and strong support the business has gained solid traction and operates across multiple regions. They are now looking to expand t...
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