About the data

Newsletter, investor and employer signals

Signals combines dated newsletter issues, investor job-search snapshots and selected employer postings. Employer careers entries are checked directly against the employer's board. Other sources in the registry may have no imported content. Company profiles are discovery leads, not verified vacancies.

Profile summaries attribute the publisher's account. Some Next Play spotlights are supported by the featured company; selection and company claims are not independent employer endorsements. Employer-verified means an exact role was found in its employer's board at the stated check date, not that it is still open today.

The UK AI collection retains the source search's selected roles. The directory's engineering-title rules determine the engineering count; selected roles outside that boundary stay visible with an explicit label. Remote or hybrid does not establish visa sponsorship or permission to work from another country.

AI-assisted ratings, with limits

Engineering ownership assessments use the JEV evaluator and a fixed question applied to stored role evidence. They describe the evidence of ownership in a posting, not employer quality, compensation value or a recommendation to accept a job. An unassessed role stays Not rated.

Missing salary or equity stays Not stated. Salary ranges retain their source currency and may cover more than one country. A funding stage or newsletter mention is not evidence of personal equity value. Check the original terms with the employer.

Imports are snapshots, not continuous monitoring. Publication dates and employer check dates are separate. Changes appear on the next successful import; a failed board read stays unknown rather than zero.

Who maintains this research

Job Breakdown is maintained by Decebal Dobrica. Source collection, summarisation and classification use automated tools; the page does not claim every record has been manually verified.

For a correction, send the entry link, disputed field and a supporting source to decebal1988@gmail.com. Do not send private application records. Public sources and their original dates remain attached to the research.

A researched sample

The register covers selected UK tech employers, including London-listed companies and researched targets. It is not a census, a representative labour-market survey, or a complete jobs feed.

Index membership comes from FTSE Russell constituent files dated 30 June 2026. AIM listings and target companies come from research. Company entries link to their available careers pages and job-board sources.

A snapshot, with gaps

Counts describe the last recorded read. Openings may have changed since then. A failed or blocked board is unknown, not zero; unread boards are excluded from opening totals and current role charts.

A working careers link does not mean its job board could be read. Coverage labels distinguish companies without a tracked board, boards that could not be read, and readable boards.

Openings and recorded roles differ

Board-level UK engineering counts can include more openings than the individual role records retained here. Work-pattern, engagement and seniority charts use recorded roles. Their denominator states how many records were counted.

When role filters are active, the headline changes to matching recorded roles. Company charts count employers; an employer with several market memberships can appear in more than one market.

Job boards are sources, not employers

A job board combines listings from many organisations. Its total cannot be compared with one employer's vacancies and may overlap with listings already read directly from employers.

Employer totals, market charts, working patterns and coverage use employer records only. Aggregated job-board listings remain searchable in the directory's separate Job-board sources section and available for workspace research.

Classifications, with a stated basis

Work patterns, engagement and mandates are assessed when postings are read. Remote means at most 25% in the office; unspecified hybrid working does not pass. B2B requires evidence of an arrangement through your own company, such as outside-IR35 contracting.

Seniority and mandate use the stored assessment of the role. Missing or unspecified evidence stays visible as uncertainty. Confirm details in the original posting before acting on them.

Confidence is not a score

Rock, sand and water describe confidence in company research. They do not rate employers or guarantee that a job remains available. The register shows the evidence attached to each entry.

How exploration works

Search and filters carry between the directory and charts. Market insights use the employer subset; the directory also keeps job-board sources separately. On a sector or market chart, other categories remain visible for comparison while the rest of your filters still apply.

Filtered links keep selections after the # in the URL. Saved views are stored only in your browser; clearing site data removes them. Application history requires sign-in and belongs to the account. Workspace is excluded from indexing.