Software Engineer (Python)

  • Backend
  • Permanent
  • London, UK

About us

We’re an award-winning LegalTech-meets-PropTech start-up focused on simplifying and accelerating the legal portion of any property transaction using technology. This is a pivotal and exciting moment to join Orbital Witness. Despite the unprecedented challenges facing early stage businesses, we have recently closed our seed round (£3.3m in April 2020) with the backing of the very best early stage venture capital funds in Europe (including LocalGlobe and Seedcamp) alongside strategic investment from some of the world’s largest real estate companies and financial institutions (JLL, Starwood Capital and Investec).

Our vision

To become the universal risk rating for land and property, replacing a 150-year-old legacy process of manual due diligence - an ‘Experian for the global real estate industry’.

Our mission

Our mission is to help any professional or individual involved in a property transaction to properly understand what they are getting into, from the outset, before incurring legal fees.


We are looking for a passionate and diligent software engineer to join the Orbital Witness team in building a greenfield SaaS product based on machine learning (especially natural language processing) for a universal risk rating for land and property.

You’ll own the end-to-end development process of key features in our web applications and underlying services as well as being a primary driver of product and technology strategy for this new team. You’ll be joining a small, dynamic team with a focus on quality, usability and impact. You’ll be involved in every stage of the development lifecycle; from discovery and design, through implementation to deployment, maintenance and improvement. You will be supported by a cross-functional, collaborative and growing team in delivering an impactful product to real users.

You will get the chance to:

  • Take ownership of key technology decisions and lay the groundwork for the company’s ambitious growth plans
  • Develop, test, refactor, deploy, maintain and support production software
  • Collaborate with a cross functional team (product managers, designers, data engineers and data scientists) to define user stories and implementation details of functional and non-functional requirements
  • Champion quality across the product and the codebase;
  • Collaborate with individuals across the business to ensure the features you develop have real business impact for customers and actually move key business metrics
  • Participate in architecture and code reviews to continuously improve the quality, maintainability, security and scalability of our applications


You should apply if you have:

  • A Bachelor’s degree in Computer Science/Engineering (or related field) or equivalent technical experience;
  • Experience with Python 3

It would also be nice if you have:

  • Built highly secure, fault tolerant APIs
  • Experience building high performance, distributed systems
  • Proven experience of driving and using modern dev practices like BDD, TDD, 12 Factor, CI/CD
  • Worked with the following libraries/tools:
    - Python 3's asyncio
    - Django/Django REST Framework/FastAPI as the API framework
    - Airflow/Prefect for ETL workflows
  • Excellent verbal and written communication skills in English
  • Have used some of the following: PostgreSQL, Redis for cache/queue, Django ORM/SQLAlchemy for ORM, AWS services like SQS, SNS, Kinesis, DynamoDB

  • Have previously worked with non-trivial application architectures using concepts like containerisation and microservices

  • You have previously worked with infrastructure like Docker and Kubernetes
  • Experience productionising machine learning pipelines at scale
  • Knowledge of or interest in developing .NET applications in a production environment
  • You prefer to ship early and often and you iterate your designs based on feedback from customers, colleagues and data on user behaviou


What’s on offer

  • Competitive starting salary, matched pension contributions and equity options in a fast growing start-up
  • Flexible working hours and location; should you choose to work from home or need a change of scenery for a few days you will have access to 40+ TOG offices in London and even more around the world
  • 25 days paid holiday (plus bank holidays)
  • Professional equipment and personal development budget along with training opportunities to learn and develop your skills
  • Cycle-to-work scheme
  • An inclusive community enjoying all-company offsites, lunches and socials

We value diversity at Orbital Witness, and would particularly encourage applications from those who are traditionally underrepresented in tech. We’d love to hear from you even if you don’t match all of the above criteria or are seeking other opportunities that we’re not currently advertising