Backend Developer

Quick Facts

• Role: Backend Engineer (Mid/Senior)

• Focus: Oracle infrastructure for blockchain applications

Description

You will help build and scale distributed backend systems that deliver reliable, secure, low-latency data across multiple blockchain ecosystems. The work includes data-fetching, aggregation, verification pipelines, participating in protocol design/optimization, and deploying/monitoring blockchain nodes.

Responsibilities

• Implement data-fetching, aggregation, and verification pipelines

• Participate in protocol design and optimization processes

• Deploy and monitor blockchain nodes to ensure network stability and reliability

Requirements

• Strong commercial backend development experience

• Experience designing and building scalable software

• Ability to write clean, maintainable and secure code

• Strong sense of ownership and responsibility for delivered solutions

Benefits

• Competitive B2B compensation (Mid: 20,000–30,000 PLN/month; Senior: 30,000–40,000 PLN/month)

• Remote work and flexible working hours

• Coworking space access in Warsaw

• Full technical setup and equipment needed for projects

• Token allocation after 3 months

• High level of ownership and impact

• Opportunity to collaborate with an international marketing team and a Poland-based technical team