Senior Backend Engineer – P2P and Distributed Systems

Pragmatike

full-time

Posted on: 9/22/2025

Origin: • 🇮🇪 Ireland

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Senior

AWSAzureCloudGoGoogle Cloud PlatformJavaMicroservicesTCP/IP

About the role

Design and develop scalable, distributed, server-side software applications and microservices
Develop and optimize mission-critical software with a strong emphasis on system programming and performance tuning
Implement robust peer-to-peer (P2P) communication solutions and contribute to/build projects using libp2p or similar P2P libraries
Ensure cross-platform functionality and application compatibility
Collaborate within an Agile Scrum team to define and prioritize backlog items, and proactively identify risks and dependencies
Create clean, maintainable, and reusable code; optimize solutions for performance, reliability, and security
Establish and enhance infrastructure, including deployment pipelines and observability tools
Work with multi-cloud environments (AWS, Azure, GCP) and participate in application lifecycle management
Engage closely with product and design teams to grasp end-user requirements
Conduct thorough code reviews and mentor other engineers; champion best engineering practices and high-quality software craftsmanship

Minimum 5-6 years of experience as a Senior/Lead Backend Developer
MS degree in Computer Science or a closely related technical field
Demonstrated technical proficiency in Go and/or Java
Strong understanding of design patterns and multi-threaded programming
Proven experience with P2P architectures (P2P experience is a MUST), ideally in production environments
Experience with libp2p or similar P2P libraries
Solid grasp of internet protocols and technologies: TCP/IP, HTTP, HTML, XML
Familiarity with service-oriented designs and methodologies: REST, JSON
Ability to build well-structured, secure RESTful APIs and understand client-side implications
Deep understanding of Agile development principles and the Agile Manifesto
English is mandatory; French is a plus
Solid experience with AWS, Azure, and GCP is highly desirable