Salary Guide

11:FS Software Engineer Salary Guide (United Kingdom)

Public compensation estimates for software engineer offers, with interview prep and negotiation tips.

Snapshot date 2026-02-25Location: United Kingdom
Median total comp
GBP 75,000
Base salary (p50)
GBP 75,000
Equity (p50)
GBP 0
Compensation breakdown
Leveling insights
Negotiation tips
%

Salary Calculator

Adjust level, location, and experience to estimate a realistic range.

Estimated compensation for L4 (Mid) in United Kingdom (baseline)
Base Salary
GBP 71,300 - GBP 79,800
Annual Bonus
GBP 0 - GBP 0
Stock / Equity
GBP 0 - GBP 0
Total Comp
GBP 71,300 - GBP 79,800

This guide summarizes publicly available estimates for 11:FS software engineer compensation in United Kingdom. It highlights a median total compensation (p50) of GBP 75,000 and a broad GBP 75,000 - GBP 84,000 range to help you set expectations. 11:FS operates in tech, finance, banking. Public company data lists its scale around 51-250. Public focus areas include Consulting & Professional Services, Financial Services, B2B.

Salary Snapshot

Below is a high-level snapshot based on published percentile data for software engineer offers.

MetricEstimateNotes
Median total compensation (p50)GBP 75,000Base + bonus + equity
Median base salary (p50)GBP 75,000Annual base pay
Median bonus (p50)GBP 0Annual target bonus
Median equity (p50)GBP 0Annualized stock grant value
Total comp range (p10-p90)GBP 75,000 - GBP 84,000Broad range across levels

How to Use This Guide

Start with the median as your anchor, then adjust for level, location, and equity refresh policies. If you are comparing offers, align on total compensation first. Treat the range as a planning band rather than a guarantee, and revisit it as new offers or leveling signals appear.

Interview Focus Areas

Your interview performance influences leveling more than any other factor. Focus on the loops that typically determine level placement:

  • Data structures and algorithms for coding rounds.
  • System design depth for mid-to-senior roles.
  • Object-oriented design or behavioral framing where applicable.

Total Compensation Breakdown

11:FS compensation typically combines base salary, cash bonus, and equity. The equity portion can be a large share of total compensation at mid-to-senior levels, so it is worth understanding how equity is valued and scheduled.

Median package

The median total compensation (p50) estimate is about GBP 75,000. This median aligns with a mid-level mix of base (GBP 75,000), bonus (GBP 0), and equity (GBP 0 annualized). Actual packages depend on level, location, and offer timing.

Percentile range

The p10-p90 range (GBP 75,000 - GBP 84,000) reflects wide variation across levels and locations. Use this range as a boundary for expectations, not a promise. Junior offers cluster toward the lower end, while senior and staff offers cluster toward the upper end.

Compensation by Location

Location is one of the biggest drivers of compensation variance. 11:FS adjusts compensation for geography and cost of labor.

High-cost hubs

Markets like the Bay Area, New York, and Seattle tend to land higher in the ranges. These locations also have stronger competition, so the distribution skews upward for experienced candidates.

Lower-cost markets and remote

Lower-cost locations often land toward the lower-middle of the range. Remote offers can vary by region and may include adjustments based on local salary bands.

Level and Experience Bands

11:FS uses a leveling system for software engineer roles. Leveling drives large differences in total compensation because equity and bonus targets increase with seniority.

Common SWE levels

  • Entry or early-career roles
  • Mid-level roles
  • Senior roles
  • Staff and senior staff roles

How leveling impacts ranges

Leveling affects the equity component most. Senior offers often climb faster through equity and refresh grants than through base salary alone.

Company context

11:FS employs software engineers across multiple teams and geographies, which can widen leveling bands and compensation ranges.

Company Profile

Headquarters and scale

Employee count: 51-250.

Industry focus

Industry: Tech, Finance, Banking. Focus areas: Consulting & Professional Services, Financial Services, B2B.

Negotiation Tips

  • Anchor on total compensation, not just base salary.
  • Ask for the equity breakdown and refresh policy in writing.
  • Tie your counteroffer to leveling evidence from interview performance.
  • Use competing offers to justify movement within the band.
  • Account for location adjustments before comparing offers.

How GhostInterview Helps With Offers

GhostInterview helps you perform well in the interviews that determine your level. Higher leveling typically results in higher equity and bonus targets.

FAQ

Are these salary numbers guaranteed?

No. They are estimates based on public data and can vary by level, location, and timing.

Do these totals include sign-on bonuses?

No. The snapshot focuses on base salary, annual bonus, and annualized equity value.

What does total compensation mean?

Total compensation is base salary plus annual bonus plus annualized equity value.

Does location change the offer?

Yes. 11:FS adjusts compensation for geography, so offers in United Kingdom may differ from other regions.

How can I improve my level?

Stronger performance in system design and coding interviews is the most common lever.

Is this data specific to this location?

Yes. This snapshot reflects public data for United Kingdom and may differ elsewhere.

Data Sources & Methodology

  • Primary source: Levels.fyi public data for 11:FS software engineer offers (United Kingdom).
  • Snapshot date: 2026-02-25.
  • Percentiles used: p10, p50, p90 for total compensation; p50 for base, bonus, and equity.
  • Values are rounded to the nearest 100.
  • This page reports estimates and should not be treated as a guaranteed offer.
Data source

Verify the compensation snapshot

This page was last reviewed on 2026-02-25 and is anchored to public compensation reporting for 11:FS in United Kingdom. Check the primary source before using the range in negotiations.

Need better leveling outcomes?

GhostInterview helps you handle coding, system design, and OOD in real time.