Product Engineer, Honest
£70-90k
+ Ownership in Honest through our EMI option scheme
More information about location
1-5 days a week in office
Carbon negative mobile network
Posted today
Carbon negative mobile network
21-100 employees
Posted today
£70-90k
+ Ownership in Honest through our EMI option scheme
More information about location
1-5 days a week in office
21-100 employees
Company mission
Honest is the network doing mobile right. It's on a mission to show a broken industry there’s a better way to do mobile.
Role
Who you are
- You prioritise customer-facing features and platform iteration, and you understand the domain well enough to specify it cleanly
- You treat AI as an execution partner: you direct it, review its work, and encode what you learn back into the system so the next session is sharper
- You write specifications and tests that are clear, complete and unambiguous, because you know the quality of the spec determines the quality of everything downstream
- You have a strong background in platform development and can leverage your cloud and networking skills to assist with infrastructure improvements
- You understand that infrastructure isn’t built for itself: every decision affects the team’s ability to ship product work
- You are collaborative and outcomes-oriented, working with the team to hit milestones and flag risks early
- You thrive in a collaborative environment where decisions are shared and the focus is on the best path forward for the product
- You measure success by uptime, reliability and how easy you’ve made the team’s life, not by volume of code shipped
- You know when to push through yourself and when to bring in deeper expertise
- You care about clean, maintainable, well-documented work, even when you’re moving fast
- You communicate clearly, challenge assumptions confidently and ask great questions
- No two days are the same. It’s dynamic and exciting, and best suited to engineers who thrive in fast-paced environments and see change as an opportunity, not a blocker
What the job involves
- We’re looking for a Product Engineer to focus on customer features and platform iteration
- You’ll collaborate with the team to evolve our platform, including mobile app development, internal dashboards, API and MCP services, networking and cloud infrastructure as part of our broader mission
- Your work directly impacts our customers and fellow engineers. Your job is to improve the platform and build features that make everyone’s lives easier, contributing to infrastructure and reliability tasks when needed to keep the team shipping faster
- This is a role focused on iteration and delivery. You’ll help decide what to build, scope it, and direct AI to implement it. AI is your primary execution mechanism
- The value you bring is judgement: what features to prioritise and how to iterate effectively on the platform
- You’ll balance operational tasks with product velocity. Every contribution affects our ability to ship, so prioritising developer experience and customer-facing improvements is the heart of the role
- Collaborate with the team on platform infrastructure and feature development, helping set timelines and defining scope for new iterations
- Talk to internal customers (product engineering, marketing and the customer support team) to understand the real pain before specifying solutions
- Write specifications that are clear, complete and unambiguous enough for AI to produce correct output
- Direct AI to build, test and iterate, then review every output against the spec and architectural intent
- Iterate on cloud infrastructure-as-code to support new customer features while maintaining security and efficiency
- Assist with networking and infrastructure troubleshooting, tasks, and improvements on an as-needed basis
- Contribute to CI/CD pipelines and deployment strategies to ensure a smooth and reliable delivery process for the whole team
- Set up alerting, observability and incident response that catches issues before customers do
- Support data infrastructure and pipelines to ensure platform reliability and data availability
- Spot recurring operational burden and decide what to automate vs what needs structural investment
- After shipping, verify it solved the problem, spending more time on the bigger or riskier changes. Then close the loop: tell the person who asked and make sure they can actually use the result, not just that the ticket's closed
- Contribute to improving our AI development process: when AI produces incorrect output, trace back to the missing constraint, fix it, then fix the output, so the system gets sharper over time
Application process
- Introductory call with Fi, our Head of People & Impact (20-30 mins)
- First round interview with Ben, our Head of Engineering (45 mins)
- Practical technical interview with Ben and Sib, (1.5hrs)
- Values interview with Andy and Josh, our Co-Founders (1hr)
Salary benchmarks
Our take
Honest Mobile was launched in response to seeing a gap in the modern market for mobiles. Mobile networks were lagging behind, set in their old ways with complicated contracts, overcharging, and keeping customers on hold -being the norm.
To challenge this, the company built Honest Mobile from the ground up to create a better mobile network for customers and the planet. With £150k in funding, Honest Mobile has created the first carbon-neutral mobile network where customers can float between networks. And on top of this, its a registered B-Corporation and plants trees on behalf of its customers.
The mobile industry has many established players who have already spent time dealing with the challenges that Honest Mobile currently faces, like price competitiveness, WiFi functionality, and rural coverage. However, by aiming to capitalise on the consumer trend of eco-consciousness, which many of the existing companies in this space neglect, Honest Mobile aims to grow its customer base. Its performance on Seedrs, an equity crowdfunding platform for startups where it raised more than £3M in an oversubscribed campaign, shows that it is clearly gaining traction in the market.
With sustainability at the core of its mission, the company has released the UK's first recycled SIMs – made from 100% post-consumer recycled plastic. Honest Mobile's next step? Getting get rid of SIMs altogether!
Steph
Company Specialist at Welcome to the Jungle
Insights
31% female employees
Company
Funding (last 2 of 4 rounds)
Oct 2025
$0.3m
ANGEL
Apr 2023
$4.1m
EARLY VC
Total funding: $5.6m
Company benefits
- 🏝️ 25 days annual leave: Relax, unwind and take that all-important break 25 days a year, plus all the bank holidays
- 🥳 Your birthday off every year
- 📈 Ownership of Honest: Own your slice of Honest, through our company-wide EMI share options scheme
- 📱 An Honest plan and new refurbed phone: It goes without saying... a *new* phone (refurbed, ofc) and monthly SIM plan is coming your way – on us
- 🙋 Paid volunteering: We're all about doing the right thing. Each year you'll get a day to give back
- 📚 £500 annual learning budget: You get a learning budget! You get a learning budget! Everyone gets a learning budget! That's right, you'll get £500 per year for all your essential and technical learning
- 🧘 Monthly £35 wellbeing budget: Did someone say wellbeing? Yes, we did! You'll receive £35 through Heka to spend on self-care for the month
- 🚲 Cycle to Work scheme: Looking for a new ride to work? We've got you covered with the Cycle to Work scheme
- 🪇 Regular team events: Every other month we get together for a fun activity – from pottery painting, to archery, to escape rooms
Company values
- Radical changemakers: We’re here to shake things up, not follow the crowd. That means moving fast, taking risks and tackling challenges head on
- Positively provocative: We’re hungry for change but we’ll always keep things warm, hopeful and positive
- Caring candidly: While other networks count profits and dole out the bare minimum, we're here flipping the script. Because at Honest, we care about the same things our customers do
- Down-to-earth honesty: The clue’s in our name: we like giving it to people straight. Honesty is the bedrock of who we are
Company HQ
Kennington, London
Articles
Leadership
Andy Aitken
(Co-Founder & CEO)Andy studied Land Economy at Cambridge, and are an ICAEW Chartered Accountant. Worked at Deloitte for over eleven years, from Deloitte Scholar to Consultant for Deloitte Propel.
Josh Mihill
(Co-founder)Josh studied Product Design Engineering at Glasgow School of Art and the University of Glasgow followed by an MPhil in Industrial Systems, Manufacturing & Management from the University of Cambridge.
Diversity, Equity & Inclusion at Honest
Fiona Egan (Head of People & Impact)
- Here at Honest, we’re all about doing the right thing, especially when no one’s looking. That includes building an inclusive environment where everyone feels like they belong and proud to be their true selves everyday. We’re committed to providing the support our team needs to thrive and do their best work. We believe it’s our differences that make us stronger and celebrate diversity in the Honest team. Learning from one another’s unique experiences, perspectives and ideas is how we win. That’s why we strongly encourage applications from all walks of life. So no matter your ethnicity, sexuality, gender identity, disability, neurodiversity, caregiver status, economic background or anything else, we welcome your application. Need any adjustments to support you with your application or at any point during the interviewing process? Email Fi, our Head of People & Impact. She’s here to help.
- Support during the process. If you have a disability, health condition, or any access needs and would like us to make adjustments to our process, please let us know. We’re happy to work with you to make sure you have what you need to take part fully and comfortably.
Share this job
View 1 more job at Honest