Blockchain Back end developpeur

This is entry-level to mid-level role. Translate requirements into design, ask stakeholder questions, disambiguate specs. Type d'emploi : Temps plein, CDI....

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Remote details

Employer’s note: Outside Covid-19 employees expected to be on-site 3 days a month.
Visa Sponsorship: YesTechnologies

Job description

Blockchain technology is changing the way individuals and organisations interact with each other. And Quant is leading this revolution. We’ve already developed the world’s first blockchain API Gateway which both connects enterprise applications to DLTs and interconnects DLTs together. Now, we’re building on this platform (called Quant Overledger) to help governments, organisations and individuals across the globe benefit from the true potential of incredibly powerful technology.

Headquartered in London, Quant Network is a member of the Oracle global start-up ecosystem, and an Amazon AWS partner.

It’s an exciting mission: developing a technology that is truly changing the way the world connects. But it’s challenging, too. Which is why we’re looking to expand our Engineering Team. We need the support of people who not only share our vision but who are intellectually flexible and tenacious; people who revel in problem-solving. People who can think laterally and challenge norms.

The role

This is entry-level to mid-level role.


  • Translate requirements into design, ask stakeholder questions, disambiguate specs
  • Ability to work with minimal supervision in order to be effective
  • Take an active hands-on approach to all aspects of the development lifecycle including technical design, development, testing, through to production environments
  • Minimize accumulation of technical debt within any component we design, own or build and identify and implement optimizations to increase automation for future development

Mandatory skills

  • 3+ years commercial experience of software development (preferably in financially regulated businesses such as the Banking or Insurance market)
  • Experience with REST API and RPC development
  • Knowledge and experience with common Agile techniques and concepts: User Stories, BDD, TDD, Continuous Integration, Continuous Testing, Pairing, Automated Testing
  • Experience with continuous integration and deployment processes and working on both greenfield and existing architectures (including strong Git, GitHub experience)
  • Good written and verbal communication skills – needed for communicating with a wide range of people, both internally and occasionally externally in a professional manner

Additional Desirable skills/attributes

  • Have programming experience, particularly in Spring Boot Java
  • A good understanding of Microservice architecture/MongoDB/AWS/Springboot/RPC
  • Knowledge of (at least one of) development in R3 Corda/Hyper Ledger Fabric/Ethereum and/or demonstratable interest in DLT/Blockchain or related technologies and business applications
  • Experience of working in a dynamic environment often with shifting priorities
  • Knowledge of any of Docker, Kubernetes, RabbitMq, EMS, Kafka
  • Knowledge of algorithms and data structures
  • Experience of low-level development and associated paradigms (sockets, threads, async protocols, error handling)
  • Exposure to Test driven development, Behaviour driven development, Test Automation, Secure by design approaches
  • Exposure to large scale, high volume, multi-threaded and highly distributed systems
  • Involvement in open-source development and may even contribute to one or more repos

Personal strengths

  • A self-starter, efficient and innovative
  • An original thinker
  • An enthusiastic and able problem-solver
  • Enthusiastic team player with the ability to lead where appropriate
  • A keen learner with a strong desire to upskill in a variety of software development techniques

The team

At Quant, you’ll join a highly engaged and motivated Engineering department, working in one of the most genuinely exciting – and challenging – areas of technology today. Currently, our small teams are 100% remote (temporarily due to Covid-19) and employ high-quality and meticulous Agile practices and iterative development. All of our developers are intellectually agile, inquisitive and curious, love a challenge, are instinctive collaborators and love to continuously develop their skills.

The technology and tools you will be using

Tools: Helm, Git, Visual Studio Code, IntelliJ, Postman, Clubhouse and Miro

Tech Stack: Spring Boot, Java, JS, NodeJS , PHP and VueJS.

Platform: Kubernetes, AWS, Oracle

Databases: Mongo and Postgres, amongst others.

The rewards

Not only will you be working with a small, but rapidly growing, team, in one of the most genuinely exciting areas of technology today, but we are committed to the philosophy of CPD (continuous performance development). This not only helps us to develop team performance that will keep us at the leading edge of the technology but ensures that every employee has the opportunity to maximise personal development and career growth. We also offer a competitive salary and an agile and family-friendly working environment.

Statut : Cadre

Type d’emploi : Temps plein, CDI

Salaire : 1 859,00€ à 3 500,00€ par mois