Joseph Hage Aaronson

We create value for our clients by delivering seamless solutions to complex disputes

Founded 2013
51-200 employees
  • Legal Services
  • Headquarters address
    280 High Holborn, London, WC1V 7EE

    JHA is a new model of law firm, specialising in litigation and dispute resolution. We provide integrated legal, practical and commercial solutions to high value and complex disputes.

    Formed in March 2013, we have grown exponentially by achieving extraordinary results for our clients in some of the most ground-breaking and high-value cases.

    Today, we employ more than 100 leading professionals, including teams of barristers, solicitors, forensic accountants and data scientists. The teams collaborate closely to devise and deliver the best results for our clients, whether through litigation, arbitration, mediation or settlement.

    Our professional offer is supported by a dedicated network of businesses services, which give us an advantage in key areas including: IT, finance, HR, recruitment, marketing, communications and business development.


    COMMERCIAL LITIGATION: Our industry-leading experience allows us to prepare the most persuasive arguments that deliver the best possible outcome.

    ARBITRATION: Our exceptional experience and expertise allows us to be involved in some of the most significant, challenging, and high-value commercial arbitrations in the world.

    TAX DISPUTES: Our combination of leading barristers and solicitors collaborate to advise and represent our clients in disputes. Our tax team is ranked in the top tiers for both tax litigation and contentious tax in The Legal 500 and Chambers & Partners.

    INVESTIGATION: Our investigations team combines defence lawyers, investigative lawyers, former regulators, forensic accountants, and data scientists. We employ leading technologies to provide practical insights and timely advice.

    COSTS LITIGATION: Our dedicated team of costs lawyers and solicitors combine their experience with new technologies to deliver efficient and effective costs recovery from litigation and arbitration.

    DATA SCIENCE: Our team of data scientists and engineers is redefining how big data is used in law, and investigation. We deploy deep learning algorithms to create data-driven insights and solutions.


    Our data scientists and engineers come from the top academic institutions such as Cambridge, Oxford and Imperial with first class degrees in maths, statistics, neuroscience, computer vision, and computer science.


    Our team of data scientists and engineers work in a Linux based environment, leveraging AWS' EC2, RDS, S3 and programming in Python and R. TensorFlow and Keras are our go-to tools for building deep learning models for our computer vision and NLP solutions.


    Our industry-leading work and reputation depend on the capability, collaboration and commitment of our people – our single most important asset.

    In return for their time and dedication, we offer our people a flat structure and integrated working model, which allows them to develop a breadth and depth of professional knowledge, and work with inspiring people who are leaders in their fields.

    We are committed to recruiting the very best people, and keeping them with us through their careers. We create structured career paths to ensure our people keep a clear view of their own professional direction and development.


    We have a three stage recruitment process which we aim to complete within a two week period. Where possible, we will combine rounds two and three.

    FIRST ROUND: an informal interview with the Head of Data Science. This is an opportunity to discuss your experience to date and future ambitions as well as for you to understand more about the team and work on offer.

    SECOND ROUND: a written technical exercise to be completed ahead of a verbal technical interview with two members from the data science team. You will be asked to explain how you solved the written exercise during this interview.

    THIRD ROUND: an interview with the Chief Operating Officer and member of the data team to discuss your CV and experience in detail. This round may also include a number of competency based questions.



    Tech stack

    AWS, Python, R, RShiny, PostgreSQL, Tensorflow, Keras, Linux, Bash, Git
    Joseph Hage Aaronson - The top floor reception space in our high-spec modern offices
    Joseph Hage Aaronson - Company Photo
    Joseph Hage Aaronson - Our light and airy workspace is set across two adjoining floors
    Joseph Hage Aaronson - Company Photo
    Joseph Hage Aaronson - Located in the heart of London’s legal district
    Joseph Hage Aaronson - Company Photo