Agency Services

Senior Software Engineer (Backend) (Remote)

Work Type: Contract


January 1st, 2023 start date with a 3 month term. Through continued performance and success the contract may be extended with the potential for full time employment.


PIXL8 is a creative studio + business advisory firm operating at the intersection of technology, content and brands. We pride ourselves on delivering cohesive programs, strategic partnerships and marketing solutions for our integrated partners and clients. PIXL8 brings a wealth of global connectivity and experience across industries, with a specific focus on decentralized finance and the growth of the bitcoin economy.


PIXL8 is seeking a Senior Software Engineer (Backend) to deliver distributed, resilient and high-performing backend services for a client with a bitcoin payment processing product.


  • Passion and knowledge of Bitcoin and Lightning Network

  • Experience writing code in systems languages (C, C++)

  • 4+ years of Software Engineering experience in an Agile environment or Open Source

  • Experience with web services (consuming and creating) with REST

  • Solid understanding of SQL and Database Schema, real time messaging systems, advanced cache stores like Redis

  • Proven leadership and mentoring skills with highly distributed team

  • Experience with cloud hosting services (AWS etc…) 

  • Proven history of excellence in managing high availability, redundant, scalable enterprise processing systems

  • Prior experience of producing consumable and composable components, enterprise-grade APIs that can be leveraged by customers and partners

  • Customer-centric mindset always seeking ways to optimize experience for those that will consume service/s

  • Must be committed to incorporating security into all decisions and daily job responsibilities


  • Design, develop, debug, integrate, deploy, and maintain applications that meet requirements and business objectives 

  • Works with other functional areas to establish a design, technology, product development strategy and influence and drive decisions to meet development standards and launch within project timelines

  • Implement software engineering solutions to meet requirements, architectural direction, and adoption efforts

  • Determine root cause for the most complex software issues and develop practical, efficient, and permanent technical solutions

  • Code (and responsible for team’s code) and successfully perform unit and integration testing of software to ensure proper and efficient execution, as well as compliance to the business and technical requirements

  • Work in Node.js, MySQL, with deep knowledge on basic algorithms and other Document and Key-Value data structures and ability to adopt new languages and architecture patterns needed for the work

  • Migrate applications to quality assurance and/or the production environment, or perform quality assurance as necessary

  • Build reusable code, APIs, plug-ins, and libraries that can be leveraged by customers and/or partners

  • Full lifecycle of your developments including technical definition, testing, iteration, and performance monitoring

  • Solve highly technical problems (in scope and nature) that will undoubtedly arise with nascent technology

  • Work with team to build the tech stack for scale

  • Collaborate with both internal and external subject matter experts to continually refine knowledge base and capabilities


  • Prior knowledge and/or experience in payment industry

  • History of building/maintaining high availability, scalability, performant platforms      

  • Contribution to Bitcoin Core, LND, Core-LND, BDK-LDK and other crypto and large open-source projects

  • Knowledge on Lightning implementations or BOLTs

  • Detail-level knowledge of BIPs is highly value

  • You operate your own Bitcoin / Lightning node

  • Experience with gRPC


Commensurate with experience and aligned to market rates

Interest and CVs to be sent to 

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