
Record OS
AI-powered self-assessment and Making Tax Digital platform for accounting firms and individuals
Last verified August 17, 2026 · Updated daily
What Record OS is building
Record OS is not automating accountants out of the picture. That is the explicit design choice and it is the product's strongest market insight. Co-founder Dhruv Chadha stressed that the technology is designed to be assistive rather than autonomous: "We want the accountant to be in control. We show the accountant if something came from AI, and they can add or change something if it isn't quite right. The goal is not to replace accountants but to help them work faster." The platform works in two layers. The AI layer ingests the client's financial records, cross-references them against HMRC data, identifies discrepancies, flags potential deductions, and drafts the return. Every AI-sourced item is marked as such. The professional layer puts a qualified tax accountant in the review seat: they see the AI's work, can accept or modify any item, and sign off before submission. The result is submitted to HMRC as a fully compliant return with a full audit trail. The product is specifically designed around Making Tax Digital for Income Tax (MTD IT), the HMRC programme that moved from optional to mandatory in April 2026. Since April 2026, self-employed workers and landlords earning over £50,000 must submit quarterly digital updates to HMRC. The threshold will decrease to £30,000 in 2027 and £20,000 in 2028. The platform integrates with accounting software and HMRC's API directly.
Why this matters
Another 1.7 million people will need to file taxes digitally by 2028. That is not a market projection. It is a statutory obligation with a published schedule. The demand for MTD-compliant filing software is legally mandated. The question is only which platforms capture it. The founder's own experience is the product's origin story: Dhruv found a £38,968 error on his 2023-2024 Self Assessment, even with professional help. He was not a first-time filer. He was a CFO who had worked at Google, Wise, and Nansen, who hired a qualified accountant, and still had a nearly £40,000 mistake in his return. That is the market. It is not under-served amateur filers. It is sophisticated people with legitimate income complexity who need a system that finds errors the current process misses. Chadha's product framing reflects this: "No one becomes an accountant to mechanically fill tax returns, and taxpayers often think of self-assessments as almost a punishment for success or for starting a venture." The framing is precise. Self-assessment complexity correlates with financial complexity which correlates with willingness to pay. The best customer for Record OS is not a salaried employee who files one P60. It is a startup founder, contractor, landlord, or high earner whose tax situation reflects genuine economic activity and whose accountant is doing more administration than strategy. Harvey, Legora, and Clio are taking legal AI to large law firms. No comparable institutional-quality product is targeting UK self-assessment at the accountant-in-the-loop architecture. That gap is the market.
Open roles at Record OS
4 positions we're tracking. Roles are re-checked daily and removed when filled.
Full-Stack / Product Engineer
First seen 2 months ago
AI / NLP Engineer (Tax Document Intelligence)
First seen 2 months ago
Product Manager (Accountant Workflow)
First seen 2 months ago
Accountant Partnerships / GTM Lead (UK)
First seen 2 months ago
Know when Record OS is hiring before anyone else
A role stays uncontested for about four days. Here's the window — and where we put you in it.
From $9/month, cancel any time.
Watching Record OS
0 applicantsRole spotted & verified
1You get the alert
1You've applied
~8Hits the job boards
250+Hiring outlook
Very High. This is a big goal for a small, six-person pre-seed team. The pre-seed is the hiring capital. The MTD IT mandate is a time-bound commercial forcing function: the team needs to be in place before the threshold drops to £30,000 in April 2027.
Working at Record OS
Since , Record OS has built AI-powered self-assessment and Making Tax Digital platform for accounting firms and individuals. The team is now <50 people. Working at a AI company at this stage means broad remit, direct access to founders, and equity that still means something if the company works out.
The majority of roles are in London.
How to actually get hired at Record OS
Why applying the normal way doesn't work
Record OS is <50 people. No recruiter, no HR. Your application goes to a founder juggling everything. Cold outreach is how you actually get seen.
Who to contact at Record OS
Founding team
Dhruv Chadha studied at the University of Oxford before building a career as a finance executive at some of the most analytically demanding institutions in technology. He worked in finance roles at Google before joining Wise, where he operated inside one of the most data-driven financial technology organisations in the world and witnessed firsthand how payment complexity creates cascading complexity in personal tax situations for employees with equity, multi-currency income, and international earnings. He then became CFO at Nansen, the blockchain analytics platform, which placed him at the intersection of crypto finance and the specific tax treatment problems that arise when income is denominated in volatile digital assets. That is three consecutive roles where the people around him had income structures that made self-assessment genuinely difficult. While testing the Record OS platform, Dhruv found a £38,968 error on his own 2023-2024 Self Assessment, even with professional help. He posted about this publicly on LinkedIn. The willingness to make that admission public is a specific kind of intellectual honesty: he is not selling a product that claims to be perfect. He is selling a product that caught an error that a human professional missed, in his own return, and whose output is better because the AI and the accountant check each other. That is a more credible product thesis than any benchmark. His ZoomInfo profile carries a reference quote from a colleague: "Dhruv is very detail-oriented and while working together, he watched the balance sheet like a hawk without ever losing sight of our primary objective." That is the CFO character. The balance sheet precision of a professional accountant combined with the systems thinking of a technology operator is exactly the combination needed to design a product that is both technically sound and financially credible with accounting professionals. He met José in mid-2024 and the two spent time experimenting with AI applications before deciding that self-assessment was the category worth building into. They began building Record OS at the start of 2025. His public LinkedIn output since founding concentrates on the MTD IT policy timeline, the self-assessment error rate problem, and product updates from the beta. He has also posted about Broc, which appears to be a prior product experiment from his Wise period. He operates in the UK fintech community and attended the Accountex conference to represent Record OS, which is the correct venue for reaching accounting firm decision-makers.
José Luis De La Peña holds a Master of Science in Telecommunications Engineering from Danmarks Tekniske Universitet (DTU) in Denmark (2010-2012), one of the leading technical universities in Scandinavia, which gave him his foundation in distributed systems, signal processing, and network architecture before he moved into software engineering professionally. His career moved from early freelance and agency engineering work through SubscribEz and Reto-Moto before he joined Generation Home (GNH), a London-based mortgage lender that was building digital mortgage infrastructure for UK homebuyers, as an engineer. GNH is the mortgage lender that Record OS's brief refers to: the experience of building financial services software for a compliance-heavy, document-intensive industry gave him exactly the engineering context that self-assessment automation requires. He then joined Wise (then TransferWise) as a software engineer, where he worked on systems at a company that had already redefined how international payments worked and was preparing for its Nasdaq listing. His LinkedIn post on the day of the Wise Nasdaq listing reflects genuine pride in what the team had built. The experience of building engineering infrastructure at a regulated fintech that operates under multiple national regulatory frameworks is the preparation for building an HMRC-integrated AI platform. His early research work, visible in his LinkedIn profile, involved integrating social network APIs into a unified graph using NoSQL technologies like CouchDB and Redis, which is an early signal of his interest in data integration and unification problems — exactly the engineering challenge at the core of Record OS, where financial data from multiple sources (bank feeds, accountant records, HMRC data) must be normalised into a single coherent filing. He moved from computer science and legal tech into engineering roles at Wise and mortgage lender GNH. The legal tech reference in his background, not confirmed in publicly available sources but noted in AccountingWEB, suggests he has exposure to document-heavy, compliance-sensitive software environments beyond just fintech. His DTU telecom background, his GNH fintech engineering, and his Wise payments experience together make him the right technical co-founder for a product that needs to integrate cleanly with HMRC APIs, handle complex financial document parsing, and operate under the audit and data security expectations of UK accounting professionals.
Dhruv Chadha studied at the University of Oxford before building a career as a finance executive at some of the most analytically demanding institutions in technology. He worked in finance roles at Google before joining Wise, where he operated inside one of the most data-driven financial technology organisations in the world and witnessed firsthand how payment complexity creates cascading complexity in personal tax situations for employees with equity, multi-currency income, and international earnings. He then became CFO at Nansen, the blockchain analytics platform, which placed him at the intersection of crypto finance and the specific tax treatment problems that arise when income is denominated in volatile digital assets. That is three consecutive roles where the people around him had income structures that made self-assessment genuinely difficult. While testing the Record OS platform, Dhruv found a £38,968 error on his own 2023-2024 Self Assessment, even with professional help. He posted about this publicly on LinkedIn. The willingness to make that admission public is a specific kind of intellectual honesty: he is not selling a product that claims to be perfect. He is selling a product that caught an error that a human professional missed, in his own return, and whose output is better because the AI and the accountant check each other. That is a more credible product thesis than any benchmark. His ZoomInfo profile carries a reference quote from a colleague: "Dhruv is very detail-oriented and while working together, he watched the balance sheet like a hawk without ever losing sight of our primary objective." That is the CFO character. The balance sheet precision of a professional accountant combined with the systems thinking of a technology operator is exactly the combination needed to design a product that is both technically sound and financially credible with accounting professionals. He met José in mid-2024 and the two spent time experimenting with AI applications before deciding that self-assessment was the category worth building into. They began building Record OS at the start of 2025. His public LinkedIn output since founding concentrates on the MTD IT policy timeline, the self-assessment error rate problem, and product updates from the beta. He has also posted about Broc, which appears to be a prior product experiment from his Wise period. He operates in the UK fintech community and attended the Accountex conference to represent Record OS, which is the correct venue for reaching accounting firm decision-makers.
José Luis De La Peña holds a Master of Science in Telecommunications Engineering from Danmarks Tekniske Universitet (DTU) in Denmark (2010-2012), one of the leading technical universities in Scandinavia, which gave him his foundation in distributed systems, signal processing, and network architecture before he moved into software engineering professionally. His career moved from early freelance and agency engineering work through SubscribEz and Reto-Moto before he joined Generation Home (GNH), a London-based mortgage lender that was building digital mortgage infrastructure for UK homebuyers, as an engineer. GNH is the mortgage lender that Record OS's brief refers to: the experience of building financial services software for a compliance-heavy, document-intensive industry gave him exactly the engineering context that self-assessment automation requires. He then joined Wise (then TransferWise) as a software engineer, where he worked on systems at a company that had already redefined how international payments worked and was preparing for its Nasdaq listing. His LinkedIn post on the day of the Wise Nasdaq listing reflects genuine pride in what the team had built. The experience of building engineering infrastructure at a regulated fintech that operates under multiple national regulatory frameworks is the preparation for building an HMRC-integrated AI platform. His early research work, visible in his LinkedIn profile, involved integrating social network APIs into a unified graph using NoSQL technologies like CouchDB and Redis, which is an early signal of his interest in data integration and unification problems — exactly the engineering challenge at the core of Record OS, where financial data from multiple sources (bank feeds, accountant records, HMRC data) must be normalised into a single coherent filing. He moved from computer science and legal tech into engineering roles at Wise and mortgage lender GNH. The legal tech reference in his background, not confirmed in publicly available sources but noted in AccountingWEB, suggests he has exposure to document-heavy, compliance-sensitive software environments beyond just fintech. His DTU telecom background, his GNH fintech engineering, and his Wise payments experience together make him the right technical co-founder for a product that needs to integrate cleanly with HMRC APIs, handle complex financial document parsing, and operate under the audit and data security expectations of UK accounting professionals.
What to show them
Record OS is a production product in beta: HMRC API integration, AI document parsing, accountant-facing review interface, and quarterly submission workflows. As the beta expands to more accounting firms and the MTD IT deadline drives adoption, the engineering team that built it at six people needs to grow. The stack is likely TypeScript/Python on cloud infrastructure with the HMRC MTD API at the centre. Core skills: TypeScript or Python, REST API integration (HMRC MTD API or comparable government financial APIs), document parsing and AI pipeline integration, production-grade web application development, UX sensibility for professional/accountant-facing interfaces, fintech compliance awareness. Proof of work: Build a minimal HMRC MTD IT-compatible digital record submission: connect to the HMRC sandbox API, generate a quarterly update payload from mock income and expense data, and submit it. Document the OAuth flow, the data schema, and the error handling for HMRC API rejections. This is literally what Record OS does for every client. Publish the code.
A cold email that works at Record OS
What Record OS screens for
Episode 1 Ventures is the most significant signal. Episode 1 is one of the leading UK pre-seed and seed investors, writing £1M to £2M first cheques in fintech, AI, developer tools, and marketplaces. Their portfolio includes six unicorns. They focus specifically on the pre-seed to seed phase where velocity matters most. Their portfolio companies at this stage are typically pushed hard on product shipping and commercial traction, not product theorising. Six people, a working beta, and a regulatory mandate means the next six months are about scaling the engineering team and the accounting firm pipeline simultaneously. The angel roster amplifies the commercial signal. Former CFOs and senior leaders from Wise, Revolut, Deliveroo, and Alphabet are not writing cheques into tax software because they find the category interesting. They are writing cheques because they have run finance functions at fast-scaling companies and they know exactly how painful self-assessment is for the people their companies employed: founders, early employees, contractors, and landlords whose income structure does not fit a PAYE form. These are also the first 100 customers. The capital is the hiring signal: a six-person team just raised $2M with an explicit mandate to scale before 1.7 million new filers hit the MTD threshold in 2027. That timeline is the forcing function. Contact: founders@recordos.com
A tailored CV beats a generic one. Use Record OS's job description language to clear filters.
Don't make these mistakes
Suggesting that AI will replace accountants. That is explicitly not the product thesis, and Dhruv has said so publicly. Any outreach that implies the automation story is about headcount reduction in accounting firms will immediately disqualify the sender.
Mistakes that kill Record OS applications
A recycled CV gets rejected fast at Record OS (<50 people). They notice.
Don't open with what you want. Open with what Record OS is dealing with right now — Another 1, and what you'd do about it.
Applying and waiting = silence. Follow up at day five — it roughly doubles your odds of a reply.
Applying to Record OS? Get the contact, not the form.
The Record OS interview process
3 stages · 7 days typical · take-home: yes · modelled from similar companies
We don't yet have verified candidate reports for Record OS. What follows is the typical process for a <50-person AI company — treat it as a model, not confirmed detail.
Interview stages
Intro Call
Video call · 30 min
Culture fit and role expectations
Founder or hiring manager
Technical Deep Dive
Video call or in-person · 60 min
Past projects and problem-solving approach
Technical founder or lead
Final Round
In-person or video · 45 min
Team fit and offer discussion
Founding team
Record OS take-home assignment
Record OS includes a take-home exercise in their interview process. For AI roles, this typically involves a practical problem that takes 2-4 hours. Focus on clean, working code over premature optimization. They're evaluating how you think and communicate, not just the solution.
Record OS interview timeline
Timeline: ~ days. That's faster than the AI median (10 days at <50 people).
Interviewed at Record OS?
Tell us how it went — stages, questions, timeline. Takes 90 seconds and it's how this page stays accurate for the next person.
Submit your Record OS interview experience →Record OS jobs, frequently asked questions
How many jobs does Record OS have open?
As of June 2026, Record OS has 4 open positions.
Does Record OS hire remotely?
No remote roles right now — all positions are in London.
What roles is Record OS hiring for?
Record OS is hiring across Engineering, Product, Other. The most recent opening is Full-Stack / Product Engineer.
How do I apply for a job at Record OS?
Apply via the links above. For tips, read our guide on how to get hired at Record OS.
Does Record OS respond to cold emails?
Not enough data yet on Record OS's cold email response rates.
Who is the hiring manager at Record OS?
At this size, hiring is usually run by a founder or department head.
How competitive is it to get hired at Record OS?
Typical applicant count for AI roles (<50 people): 50-100 in two weeks. Apply fast.
How many rounds is the Record OS interview?
3 stages: Intro Call, Technical Deep Dive, Final Round.
Is the Record OS interview hard?
Expect technical depth and system design, not algorithm trivia. Candidates report Technical Interview as the toughest stage.
Does Record OS give a take-home task?
Yes, Record OS includes a take-home assignment.
How long does Record OS take to get back to you?
Around 7 days across the full process.
What should I prepare for the Record OS interview?
Focus on technical depth and system design. At <50 people, they're testing whether you can operate without process, not whether you memorised algorithms.
Where is Record OS based?
Record OS is headquartered in London, US.
Get Record OS roles before they're posted
A role stays uncontested for about four days. Here's the window — and where we put you in it.
From $9/month, cancel any time.
Watching Record OS
0 applicantsRole spotted & verified
1You get the alert
1You've applied
~8Hits the job boards
250+