Request for Review: Promise — Backend/Payments Engineer (fintech), 4 IEEE conference papers, no OSS/talks yet
Hi all — long-time reader, first post. I’m planning a Stage 1 application in the next 2 months and would really appreciate a sanity check on route choice and evidence mapping before I spend the £524 and lock in three reference letters.
Profile in brief
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Based: US (San Francisco Bay Area), not currently in the UK.
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Field: Backend / distributed systems, card payments and ledger infrastructure.
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Education: M.S. Computer Science (TOP US university, Dec 2021).
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Current role: Software Engineer III at a large publicly listed US fintech (product-led, consumer banking/cards app, tens of millions of users). Mar 2025 – present.
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Previous role: Software Engineer in the payments division of a large publicly listed global bank. Jan 2022 – Mar 2025 (plus a 4-month paid internship there in 2021).
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First role: Software Engineer I at a small private company (data/crawling infrastructure), Feb 2019 – Jan 2020, ~1 year.
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Publications: 4 peer-reviewed conference papers, all 2024, all IEEE- or equivalent-indexed conferences (not journals):
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Compensation: base + equity substantially above the UK median for an equivalent senior backend role (I can evidence with offer letters, payslips and a written comparison against ONS/levels.fyi UK benchmarks).
Headline work (what I’d actually build evidence around)
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In-house card processing platform — co-designed and built the system. Tier-0 service, 99.9% annual uptime. Caveat: this was a whole-team effort — I own specific components, not the whole thing.
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Real-time service feature I built this year — I led a 3-engineer team to design and build this end-to-end, ~$6.6M annual saving, which I can evidence with an internal impact memo and a letter from a non-referee coworker.
these were contribution at my current company from 2025 to present
Proposed evidence mapping
Mandatory Criteria (recognised as a leading talent / potential leading talent):
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Impact memo + architecture/ownership artefacts for the real-time service ($6.6M annual saving, 3-engineer team lead), with a supporting letter from a senior engineer/manger in the company who is not one of my three referees.
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High remuneration evidence (contracts + earnings history + written UK-median comparison), paired with the above so it isn’t salary in isolation — the guidance is explicit that salary alone is insufficient.
Optional Criteria 3 (significant technical contribution at a product-led digital technology company) — my strongest:
- I want to use the work experience here, but how do I differentiate it from the Mandatory Criteria? if they carry the same work?
Optional Criteria 4 (academic contributions through research):
- 4 IEEE papers with citation and google scholar profiles
Reference letters – are they good enough?
I can currently get:
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A VP at my current employer (the large public fintech) — has known my work ~1.5 years, senior enough to count as an established expert, but is inside my own reporting chain.
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A lead software engineer at my previous employer (the large public bank) — has known my work ~3 years, was a peer/tech lead rather than my manager.
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A lecturer at a non-UK university, a recognised computer vision expert — known me ~2 years.
My worries:
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The guidance says evidence of recognition from “an immediate colleague, manager, or friend” isn’t sufficient. Does a VP two or three levels up in my own chain fall foul of that, or is that aimed at direct line managers?
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Is “lead software engineer” senior enough to read as an “established expert in the digital technology field”? The company is very large and it’s very difficult to reach out the high level executive
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Does a non-UK academic in computer vision carry weight when my actual application is about payments infrastructure?
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Two of three letters would be internal to companies I’ve worked at. Is that a red flag, or normal for IC applicants?
