GBBC Member Careers

Senior Software Engineer (TypeScript) - Midnight

Input Output

Input Output

Software Engineering
United Kingdom
Posted on Friday, October 27, 2023


We are looking for a talented Senior Software Engineer with expertise in TypeScript to join our team and help shape the future of Midnight’s products and technology. Midnight is a regulatory-friendly data protection-based blockchain that safeguards sensitive commercial and personal data, protecting fundamental freedoms of association, commerce, and expression for developers, companies, and individuals. Midnight utilizes a novel data protection-first programming model and ZK proofs while operating as a Cardano sidechain.

As a Senior Software Engineer at Midnight, you will be responsible for designing, developing, and maintaining the core systems that power our blockchain platform. You will work closely with our development team to build high-performance systems that can handle large-scale transaction processing, and ensure the security and integrity of our platform.


  • Design, develop, and maintain high-performance systems using JavaScript and/or Typescript and related technologies to power our blockchain platform.
  • Collaborate with our development team to ensure seamless integration of systems and features.
  • Work closely with our security team to ensure the integrity and security of our platform.
  • Write and maintain unit and integration tests to ensure system reliability and correctness.
  • Implement and optimize algorithms and data structures to improve system performance.
  • Troubleshoot and debug issues in existing systems, identifying and implementing effective solutions.
  • Participate in code reviews and contribute to technical discussions to continuously improve the quality of our systems.
  • Keep up to date with the latest developments in JavaScript/Typescript and blockchain technology, and apply them to improve our platform.

Key Competencies

  • Strong proficiency in JavaScript and/or Typescript programming language and its ecosystem, including libraries and tools
  • Experience in developing and maintaining high-performance, low-latency systems that can handle large-scale transaction processing
  • Deep understanding of computer science fundamentals, including algorithms, data structures, and concurrency
  • Familiarity with blockchain technology and its core concepts, such as consensus mechanisms, cryptography, and smart contracts
  • Strong proficiency in TypeScript and related frameworks/libraries (e.g., Node.js, React, Angular, etc.)
  • Proficient in working with databases and backend technologies (e.g., SQL, NoSQL, RESTful APIs)
  • Proficiency in writing and maintaining unit and integration tests to ensure system reliability and correctness
  • Familiarity with version control systems, such as Git, and software development best practices, such as Agile methodologies
  • Ability to work collaboratively with cross-functional teams, including developers, security experts, and product owners

Education / Experience

  • Bachelor's or Master's degree in Computer Science
  • Proven experience as a Systems Programmer, Software Engineer, or similar role with a focus on JavaScript and/or Typescript development
  • Strong understanding of computer science fundamentals, including algorithms and data structures
  • Experience in developing and maintaining high-performance systems in JavaScript
  • Experience with blockchain technology is a plus
  • Excellent communication skills and ability to collaborate effectively with cross-functional teams
  • Strong problem-solving skills and ability to identify and resolve complex technical issues independently or in a team environment


IOG is a fully distributed organization but due to team distribution, we require someone to be based either in Ireland, the UK or Poland.

All colleagues

  • Flexible schedule
  • Remote work
  • Laptop reimbursement
  • New starter package to buy hardware essentials (headphones, monitor, etc)
  • Learning & Development opportunities
  • Competitive PTO and Sick Leave plan

UK & Ireland Employees

  • Monthly Health Stipend to use towards any wellness or medical coverage/service
  • Pension

At IOG, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.