Jonathan Holloway


is looking for freelance projects. 🔎

Inhaber, Interim/Fractional Chief Technology and Product Officer, Advisory, Due-Diligence, HW Integral

Berlin, Germany


Engineering Management
Technology Strategy
Data Engineering
Software Architecture
Due Dilligence


Professional experience for Jonathan Holloway

  • Current 5 years and 10 months, since Nov 2016

    Interim/Fractional Chief Technology and Product Officer, Advisory, Due-Diligence

    HW Integral

    Product and technology executive (CTPO) working with startups and scale-ups. I help VC/PE funds/investors to make investment decisions, transform product/engineering in readiness for funding rounds and provide commercial product/technology expertise. I work with tech companies B2B/B2C. I specialise in technology strategy, product, software architecture (backend, mobile/web and data architecture (engineering and science). Open to fractional or interim roles - jon at or +44 7854 651897

  • 1 year, Jan 2016 - Dec 2016

    Chief Technology Officer


    CTO for a Berlin based startup, part time at first then full time building out a mental health AWS based B2B SaaS platform with API's for clinical depression studies. Built a B2C web offering and product/engineering team ~5 in size). Failed due to lack of traction on the B2C side and funding issues.

  • 2 years and 4 months, Feb 2014 - May 2016

    Chief Architect


    Chief Architect for the Brightpearl SaaS ERP platform for approx 1400 businesses hosted on Amazon Web Service. Design/architecture of the overall platform (Java, PHP, Golang) and integration architecture. Management of the platform team (10+ technical architects and engineers). Growth from 15 to 50+ in engineering, delivery of multiple platform features and improvements in terms of scale, performance, robustness. Delivered several projects including EPOS and integrations with Alibaba etc...

  • 2 years and 7 months, Aug 2011 - Feb 2014

    Principal Architect/Engineer

    Mango Solutions

    Working as the principal architect on data science/analytics applications (Navigator, ModSpace and supporting services) in the pharmaceutical sector for customers including Merck, Bayer and Johnson & Johnson. Worked on several consultancy projects for data science and data engineering within eCommerce, finance, gaming, dot gov and insurance (Bank of England, Office for National Statistics, Photobox, Lloyds of London, C&A).

  • 2 years and 4 months, Apr 2009 - Jul 2011


    Global Relay

    Senior developer on the architecture team for B2B SaaS message archiving platform and related products in the fintech space. Research and development on Java based applications for big data type problems involving petabyte scale indexing, searching solutions. Also worked on an instant messaging platform for the fintech industry.

  • 1 year and 3 months, Jan 2008 - Mar 2009

    Architect/Tech Lead/Engineer


    Worked as a technical lead and a solutions architect on several consultancy projects including Coastal Contacts and G & K. Also worked within the product development team as a senior developer on Elasticpath 6.x using Spring MVC, OpenJPA, Eclipse RCP (SWT, JFaces, Data Binding), Acegi, DWR and Velocity.

  • 3 years and 6 months, Aug 2004 - Jan 2008

    Senior Engineering Manager


    Responsible for the technical development and leadership of the front office (sales and marketing) team to build commercial products for a low cost airline. Delivered customer accounts, online check-in, itinerary changes online. Development/integration and maintenance of ancillary services including the payment service provider (Datacash), hotels, car hire and pre-trip email.

  • 1 year and 11 months, Sep 2002 - Jul 2004

    Software Engineer

    Khaydor Ltd

Educational background for Jonathan Holloway

  • 5 years and 1 month, Jun 2003 - Jun 2008

    Software Engineering

    Aberystwyth University

  • 4 years and 10 months, Sep 1998 - Jun 2003

    Software Engineering

    Aberystwyth University


  • English


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