Software Engineer

A technical role in our London-based digital rail start-up. You will be working on fascinating technical challenges in the rail industry, helping us to scale our products and develop new solutions. Excellent career prospects and share options available. 


Who we are  

JNCTION is a market leading scale-up business based in London working on a range of innovative digital applications and projects within the rail industry.  

The UK rail industry is undergoing the largest transformation seen in a generation and at JNCTION we are positioning ourselves to be at the centre of this change.  

As we enter a phase of rapid commercialisation and growth, we are now seeking a talented Back-end Developer to help lead and deliver a variety of leading-edge software technology and data-led projects. 


What you will be doing 

You will be working on a wide variety of JNCTION’s data, software and consulting projects, using your software engineering experience to help deliver solutions to improve rail in the UK. One example of the tools you may be working on includes our Decision Support Tool, currently used by LNER to help minimise delays to passengers during times of disruption. 

You’ll be expected to work with a wide variety of programming languages and platforms at JNCTION, due to the varying nature of our clients’ development environments. However, our current projects generally include the use of the following: 

  • Node.js (TypeScript) 
  • ExpressJS / React  
  • Python 
  • SQL (MariaDB, PostgreSQL) 
  • Microsoft Azure / AWS Cloud 
  • Java 
  • Apache data technologies (Camel, Active MQ, Spark, Kafka, Airflow, etc.)  
  • Docker 

You’ll also work closely with our Head of Software who will provide direction and technical support in your projects.  

JNCTION’s fast-paced, rapid growth environment means you could be expected to take on other roles from time-to-time. These include:  


Who we’re looking for 

You’ll ideally have at least 1 year’s relevant experience working in a software or data engineering capacity. If this experience is within rail, then even better! But don’t worry if not, an interest in learning the various intricacies of the rail industry and its data is all that’s needed.  

You’ll need to bring an intellectual rigour, practical problem-solving skills and an ability to think on your feet – we work on a huge variety of problems and therefore can never be certain how one day will pan out! 

As a small, but rapidly expanding firm, you’ll need to enjoy working in small teams with a wide range of skills and experience and be excited about the opportunity to help build the company over the coming years, with the potential to grow into a senior leadership role over the coming years. 

You’ll have excellent communication and organisational skills and won’t be afraid to say when you do not understand something and need help – we work closely as a team and are keen to help each other learn.  

Finally, you will also need to be fluent in English and hold a valid UK work visa.  


  • Ability to work using Agile development principles
  • Experience working in a test-driven environment
  • Experience developing fault-tolerant real-time services 
  • Experience with modern DevOps technologies (CICD, Terraform, Ansible etc.) 

Nice to have: 

  • Experience with stream processing frameworks (Spark etc.)  
  • Rail domain experience 
  • Bachelor’s degree in a quantitative field 
  • Experience working with an Agile development methodology  


Why you’ll love working at JNCTION  

JNCTION will give you an amazing opportunity to develop your skills and expand within the team. We’d love to see the individual in this role develop into a Technical Lead or similar over the coming years as we grow. 

The salary for the role varies depending on experience, however the expected salary range is between £30,000 to £50,000 per annum. 

You’ll work closely with our experienced Head of Software who will provide career guidance and technical mentorship to you as part of the role.  

You’ll also have the opportunity and be encouraged to apply for share options and will automatically qualify for JNCTION’s bonus scheme.  

Finally, you’ll also get to enjoy our regular team social events and will get to help shape the team’s reward schemes for the future.  


If you wish to apply for this role, please send your CV and a cover letter to