---
title: 'Senior Software Engineer (Acquisition) at Butternut Box'
canonical: 'https://feeny.ai/job/senior-software-engineer-acquisition-butternut-box-london-7n1cgcaa7a4v'
type: 'job'
last_seen: '2026-09-10'
---

# Senior Software Engineer (Acquisition) at Butternut Box

- **Company:** Butternut Box
- **Location:** London, United Kingdom
- **Work type:** remote
- **Posted:** 2026-07-20
- **Last confirmed live:** 2026-09-10
- **Apply:** https://job-boards.greenhouse.io/butternutbox/jobs/8617517002

## Job description

Fresh Food, Happy Dogs.

We believe dogs deserve the healthiest, most natural and tastiest meals - with none of the nasties. That’s why we make FRESHly prepared food, cooked just like you would at home and delivered direct to our customers in perfect portions. As a B-Corp certified company, you’re joining a sustainable business that genuinely cares about our people, our products and our impact on the planet. Our goal is simple: to help dogs live healthier, happier, and longer lives, while leaving humans smiling after every interaction.

We’ve come a long way since our co-founders (Kev & Dave), hand delivered the very first Butternut Box. Today, we feed hundreds of thousands of hungry dogs across the UK and Europe - but we won’t stop until we’re feeding dogs everywhere. To get there, we need a team of brilliant people who share that ambition to come and work for us.

🐾 The job:

As a Senior Software Engineer in the Acquisition Squad, you will be the driving force behind the key application and web development projects that directly fuel our growth. You will work closely with product managers, designers, growth marketers, and fellow engineers to build features and products that optimise our signup funnels, referral loops, and landing pages to delight prospective customers.

- Architecture & Delivery: Contribute to the architecture and development direction of the squad to ensure high-quality, maintainable, modular, and reliable code is shipped across our acquisition stack.
- Heavily Backend-Weighted: Your day-to-day focus will be heavily centered on our backend infrastructure (Ruby on Rails, PostgreSQL, GraphQL) to manage discount APIs, optimise session architectures, and support core functionality. We have a dedicated team of frontend experts who own our client-side technologies, though a willingness to collaborate across the stack is always welcome.
- Marketing & Tracking Infrastructure: Partner closely with our Growth Marketing teams to maintain and optimise third-party tracking integrations. You will help manage server-side data collection, analytics event tracking, and cookie compliance, ensuring we eliminate single points of technical knowledge risk within the squad.
- Engineering Culture: Learn about and champion best practices in code, systems architecture, and engineering processes while actively elevating those around you through pair programming, mentoring, and code reviews.

👀 What we're looking for:

- Backend Expertise: Significant commercial experience in a senior engineering role with deep, production-grade familiarity with Ruby on Rails (But we are open to other OOP languages i.e Python) and PostgreSQL.
- A/B Testing Knowledge: Strong familiarity and hands-on experience implementing structured A/B testing methodologies to drive core business metrics.
- Autonomous Communication: The ability to work independently, communicate directly with downstream marketing and product stakeholders, and articulate technical/architectural decisions clearly without needing intermediaries.
- Growth & Commercial Mindset: An understanding of how backend engineering and system performance directly impact core business metrics, user tracking, and conversion rates.
- Dog-Centric: Completely obsessed with dogs!

Nice to Haves:

- Frontend Agility: Experience with React and TypeScript (if you want to flexibly pitch in on our digital onboarding stack alongside our frontend experts).
- Tracking & Analytics Tools: Experience with or exposure to third-party tools like Segment, Google Tag Manager (GTM), Meta Pixel, Google Ads, or Amazon Advertising.
- Modern Web Architectures: Familiarity with GraphQL, Storyblok (our CMS platform), and Vercel deployment workflows, alongside any exposure to Next.js.
- Domain Background: Prior experience in fast-paced B2C/B2B startup environments, subscription models, or international e-commerce platforms.

⏳ The interview process:

- Initial call with your dedicated Talent Acquisition Partner, carried out remotely.
- Take home task via Coderbyte
- Technical Interview
- Behaviours interview and Leadership Interview

We usually expect our interview process to take 3-5 weeks, end to end.

🙌 Our benefits:

- 25 days holiday (plus 8 bank holidays) and an additional day for every year of service up to 5 years
- 5 additional, paid 'paws' days off per year dedicated to your learning, development or personal wellbeing. Hit pause when you need it most
- £500 personal learning & development budget to sharpen your skills
- A significant discount on our Fresh food, to keep your own dogs as healthy as our customers
- Enhanced parental leave
- Flexible core working hours
- Cycle to work scheme
- Pension with NEST
- Private Medical Insurance with Vitality
- Private Dental Insurance with Bupa
- Paid time off for fertility treatments and pregnancy loss
- Paid sabbaticals for squad members with 5 or more years service at Butternut
- Discounted gym access through MyGymDiscounts
- Lots of office dogs (Ajax, Peggy, Chief, Louis, Hansen, Winnie and many more….)

💡 Important things to note:

- We recommend getting your application in as soon as possible. We reserve the right to close the role early.
- Our team thrives on collaboration and whilst this role is being offered remotely you are also able to join us in our West London Office. We’re in 3 days a week (Monday, Wednesday, and Thursday).
- We’re a small (but mighty!) recruitment team. We aim to respond to everyone personally, but if we’re flooded with brilliant applications, we may need to close the role early. We appreciate your patience while we review applications.
- For this specific role, we’re unable to offer visa sponsorship, so you’ll need the right to work in the UK.

❗️We believe in a seat at the table for everyone.

Butternut Box is an equal opportunity employer. We believe that to make the best food for all dogs, we need a team that represents all humans. We celebrate different nationalities, backgrounds, experiences and perspectives. We are specifically committed to increasing representation from underrepresented groups. We want a strong, diverse team built from different identities and lived experiences. We’re not perfect, but we are dedicated to the ongoing work of building an inclusive, supportive place where you can do the best work of your career.

## About Butternut Box

## Company Overview
- **One-liner**: Butternut Box delivers fresh, tailored dog food directly to customers’ doors, aiming to improve the health and happiness of dogs and their humans.
- **Entity Type**: Private (funding stage not publicly available)
- **Headquarters**: London, United Kingdom (187 Wood Lane, London W12 7FQ)
- **Founded**: 2016
- **Founders**: Kev and Dave (full names not disclosed)

## Core Business
- **Primary industry**: Fresh dog food manufacturing and direct-to-consumer subscription delivery
- **Target customers**: B2C – dog owners in the UK, Ireland, and Benelux
- **Mission statement**: “To deliver health and happiness to dogs and their humans all over the world.”

## Products & Services
- **Fresh Dog Food Subscription**: Tailored meal plans based on each dog’s breed, weight, age, and activity level. Meals are freshly prepared, delivered to the customer’s door, and average £2.30 per meal. Over 34 million meals have been served since founding.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (private company)
- **Key Metric**: Over 34 million meals served (as of 2020, but likely higher now); team size of ~830 squad members (as per careers page, though a press release states 300+, indicating rapid growth)
- **Notable Investors/Partners**: Not disclosed in available materials
- **Growth Signals**: B-Corp certified; expanded from UK to Ireland and Benelux; multiple office locations (London, Amsterdam, Berlin, Worksop); 52 open job positions as of the search date

## Competitive Advantages
- **Fresh, personalised nutrition**: Meals are customised for each dog, unlike many mass‑produced dry or canned foods.
- **B‑Corp certification**: Demonstrates commitment to social and environmental impact, including donations of meals to dogs in need (e.g., £80,000 worth of meals in 2020) and climate funding via Ecologi.
- **Strong brand and community**: Office dog culture, charity partnerships, and a values‑driven approach (“Dedicated and Determined”, “Open and Honest”, “For the Love of Dogs”).

## Strategic Focus
- **Geographic expansion**: Currently operating in the UK, Ireland, and Benelux, with plans to reach more European markets.
- **Sustainability**: Dedicated sustainability team and funding of climate solutions; likely to deepen eco‑friendly packaging and supply chain initiatives.
- **Product and service innovation**: Continuously improving meal tailoring and customer experience, with a focus on health and convenience.

## Why Work Here
- **Culture**: Described as a “fast‑moving start‑up” that values growth, transparency, and fun. Monthly socials, summer/winter parties, and Friday drinks.
- **Flexibility**: Flexible working hours and working‑from‑home days; hybrid arrangements likely.
- **Perks**: 25 days holiday + bank holidays + extra day per year of tenure; enhanced parental leave; personal learning budget of £500/year; cycle‑to‑work scheme; pension; free counselling service; charity leave; generous discount on dog food.
- **Office environment**: Dog‑friendly offices with unlimited supply of dog hugs; co‑working spaces in London, Amsterdam, and Berlin.
- **Diversity & Inclusion**: Proudly promotes a diverse and inclusive workplace.

## Sources
1. [butternutbox.com](https://butternutbox.com/) – Homepage and company description
2. [press.butternutbox.com](https://press.butternutbox.com/about-butternut-box) – Press release with key facts (mission, meals served, team size, pricing)
3. [job-boards.greenhouse.io](https://job-boards.greenhouse.io/butternutbox) – Careers page with job listings
4. [landing.butternutbox.com](https://landing.butternutbox.com/butternut-careers) – Detailed benefits and culture page

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