[{"@context":"https://schema.org","@type":"JobPosting","title":"Sr. Engineering Manager","description":"

About Additive

Additive builds AI-powered tools that give tax professionals superpowers. Tax and accounting is a $600B+ market with a severe talent shortage and too many manual, repetitive workflows. Our systems turn dense, often unstructured tax documents into trustworthy structured data and AI-native preparation and review experiences.

The performance of the product we put in the hands of accountants is the most important metric for our team. Outputs must be trustworthy under filing-season deadlines. The cost of being wrong is high: a plausible but incorrect extraction can waste hours of professional review, misstate a tax position, or flow into a filed return. We use extensive in-house datasets, rigorous evaluation suites, and deep, collaborative customer partnerships to decide what is ready to ship and where to invest next.

As part of Thomson Reuters, we pair startup speed and individual ownership with deep tax expertise, established customer relationships, and a path to rapidly deploy into real tax workflows at scale. In this environment, our team can build quickly, learn directly from customers, and distribute what works. Today, Additive products are used daily at scale by many of the biggest accounting firms in the country.

The Opportunity

We are hiring a Senior Engineering Manager to be a hands-on player-coach for one of Additive’s engineering teams. You will directly manage a team of 4-6 that will grow up to 10-12 engineers, primarily at the staff and principal level, while remaining an active technical contributor. You will be especially close to the code during your first three to six months as you build context and credibility.

Our engineers own outcomes end to end, from understanding a tax professional’","datePosted":"2026-09-15","employmentType":"FULL_TIME","hiringOrganization":{"@type":"Organization","name":"Additiveai","sameAs":"https://additiveai.com"},"url":"https://jobs.ashbyhq.com/additiveai/9be46501-feab-4b1c-a725-fc9d6a7e0f25","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"San Francisco, California"}}},{"@context":"https://schema.org","@type":"JobPosting","title":"Technical Recruiter","description":"

Sr. Recruiter

Hi! I’m Sarah :) As Additive continues to grow, I’m building out our hiring team internally!

Additive, an AI tax startup, was acquired by Thomson Reuters. Since then, not a lot has changed, but at the same time, a lot has! We still very much operate like our own startup, but now with the resources and support of a huge, established company behind us. Our product is being integrated into the broader suite of Thomson Reuters products, and the team keeps growing.

I’m hoping to find someone I’ll genuinely love working with. Together, the two of us will be responsible for growing our engineering team and helping shape what Additive becomes next

About the role

Additive is looking for a Technical Recruiter to help build the team behind an AI product transforming tax and accounting.

This is not a role where you inherit a polished recruiting machine and simply keep it running. We are still building the machine.

You will own searches from first outreach through signed offer, work directly with hiring managers, and help us figure out how Additive should hire as we scale. Engineering will be the biggest focus, but you will recruit across the company as needed.

We care a lot about quality, speed, and candidate experience. We are looking for someone who can find exceptional people, build trust with them quickly, and keep a search moving without needing a lot of structure around them.

What you’ll do

Own searches from start to finish. Source, screen, coordinate interviews, manage candidates, run offers, and close.
Build engineer","datePosted":"2026-08-17","employmentType":"FULL_TIME","hiringOrganization":{"@type":"Organization","name":"Additiveai","sameAs":"https://additiveai.com"},"url":"https://jobs.ashbyhq.com/additiveai/2546bd9a-b27e-4df0-adc6-f6beb72f1fa8","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"San Francisco, California"}}},{"@context":"https://schema.org","@type":"JobPosting","title":"Product Manager - Tax Expert","description":"
About you
Additive is seeking a highly skilled Tax Expert to join our dynamic team. As a Tax Expert, you will play a crucial role in automating the ingestion of tax documents, allowing tax professionals to focus on their most valuable work. We’re looking for candidates with a strong background in tax from top accounting firms and expertise in areas such as financial service organizations (FSO), asset management, wealth management, real estate funds, funds of funds, or private equity.
If you are passionate about leveraging technology to transform the tax and accounting industry, apply your expertise, and possess the requisite skills and experience, we invite you to join us on our exciting journey!
In this role, you will:
- Create workpapers from tax documents to help train our algorithms. Ensure accurate and structured data extraction from tax documents, leveraging your tax expertise.
- Collaborate with cross-functional teams to design and implement automated solutions for the ingestion of tax documents.
- Work closely with tax professionals to understand their needs and challenges, providing technical solutions to enhance their workflow.
- Assist our engineers with understanding the details around tax and help to continue our team's understanding of the space.
- Contribute to the development and improvement of tools that streamline tax processes and increase efficiency.
Some specifics
- 3-5 y","datePosted":"2025-09-10","employmentType":"FULL_TIME","hiringOrganization":{"@type":"Organization","name":"Additiveai","sameAs":"https://additiveai.com"},"url":"https://jobs.ashbyhq.com/additiveai/2372672b-2b5c-4243-b172-00b4d8ca8345","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"San Francisco, California"}}},{"@context":"https://schema.org","@type":"JobPosting","title":"Member of Technical Staff - Backend","description":"
  About You
  You are an exceptional builder who wants outsized responsibility and impact, and have a demonstrated history of thoughtful and pragmatic decision making. You have designed, built, and maintained backend systems that delivered on complex problems with simple and robust code. You love tackling novel challenges, you are adept at finding third party tools that meet our needs, and can both quickly make something work and design it to scale and handle edge cases. You’re genuinely passionate about building, and are excited to be an integral part of a team of like-minded folks.
  Responsibilities
  - Build the core systems that deploy our machine learning capabilities both in training and production, build metrics systems for rapid iteration and introspection, and help improve the performance of both by using your judgement to optimize for evolving technical and product requirements.
  - Drive technology and architectural choices for Additive’s core services that will enable us to rapidly build and iterate on user experiences that enable our customers to do their best work.
  - Design and build the integration of ML inference, monitoring systems, Large Language Model (LLM) interactions, application layers, and tax-related business logic into our core systems.
  - Build out database layers supporting business logic and applications within our systems and data integration strategy with external vendor APIs and interfaces.
  - Collaborate with the rest of the team on effective CI/CD systems that helps us all move faster.
  - Engage directly with accountants to understand their needs and how we can best","datePosted":"2025-09-09","employmentType":"FULL_TIME","hiringOrganization":{"@type":"Organization","name":"Additiveai","sameAs":"https://additiveai.com"},"url":"https://jobs.ashbyhq.com/additiveai/04227f19-2ac8-438c-bc79-76ba837d8439","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"San Francisco, California"}}}]

About Additive

The Opportunity

Sr. Recruiter

About the role

What you’ll do

About You

Responsibilities

Additiveai

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