Next 15 Group plc
Senior Engineer
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Transforming B2B Marketing, One Buyer Journey at a Time
Pretzl is redefining what a B2B marketing agency can be. As a B2B Technology-and-People-as-a-Service (TaPaaS) agency with approx. 350 people globally, we're not just advising clients - we're building the technology that transforms how businesses connect with their buyers.
Our flagship product, Journey Lab is changing the game for buyer journey optimisation. We need engineers who care deeply about the problems we're solving, not just the tickets they're assigned.
Role overview
We’re looking for an experienced Senior Engineer to join our Journey Lab squad and help us strengthen how the product is shaped, built, and operated.
We are hiring towards the upper end of Senior Engineer level. We’re looking for someone who has already been owning complex and ambiguous work, influencing technical direction, developing other engineers, and improving how a product team delivers.
You’ll be a senior technical contributor within a tight-knit team of four developers, one designer, and one product owner. You’ll own complex initiatives end-to-end, help break larger product opportunities into coherent vertical slices, contribute to the architectural direction of the platform, mentor other engineers, and raise the standard for how we plan, build, review, and ship work.
This isn’t a role for someone who wants to be handed fully specified tickets and churn out code. We need an engineer who wants to be involved earlier in the product process, working alongside product and design while problems are still being clarified, trade-offs are being discussed, and the right solution is still emerging.
We already have strong leadership buy-in for a more product-led engineering model. The opportunity here is to help embed that model day to day: bringing engineering judgement into shaping, improving delivery quality, and helping the wider team move away from a ticket-taking mindset towards shared ownership of product outcomes.
Exceptional candidates who demonstrate sustained Staff-level scope and impact may be considered for appointment at Staff Engineer level.
This is a fully remote, UK-based role with the expectation to travel to London approximately once per month. We are not currently hiring this role as an overseas remote position.
As a Senior Engineer at Pretzl, you will:
- Lead complex product work from early shaping through to production deployment
- Turn ambiguous product problems into clear technical approaches, sensible delivery plans, and coherent vertical slices
- Work directly with product leadership, design, and your squad to shape solutions that meet user needs
- Bring engineering judgement into conversations before work is fully specified, helping clarify gaps, risks, dependencies, and trade-offs
- Make pragmatic architectural decisions within your domain and clearly explain the reasoning behind them
- Design and build solutions that are maintainable, testable, and appropriately scalable
- Own delivery quality as well as implementation, ensuring work is meaningfully tested and production-ready
- Lead debugging efforts for complex issues and identify systemic problems, not just symptoms
- Create clear technical plans and pull requests that explain the reasoning behind the implementation, not just the code changes
- Mentor and develop other engineers through pairing, code reviews, feedback, and stretch opportunities
- Help improve engineering practices, product judgement, technical standards, and delivery effectiveness across the team
- Use AI development tools such as Cursor and Claude Code thoughtfully, treating them as collaborators rather than shortcuts that bypass understanding
- Communicate technical concepts, uncertainty, and trade-offs clearly to technical and non-technical stakeholders
- Contribute to hiring and onboarding activities
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What We're Looking For:
We’re looking for someone who combines strong engineering judgement with genuine product curiosity.
You do not need to be a product manager, but you should care about why something matters, how users will experience it, and whether the solution being shaped is the right one.
Essential
- A sustained track record of operating effectively at Senior Engineer level
- Proven ability to lead complex and ambiguous product work from early shaping through to production
- Strong technical judgement, including pragmatic architectural decisions, clear trade-offs, and sensible management of technical debt
- Strong experience with modern web technologies; our stack includes SvelteKit, TypeScript, PostgreSQL, AWS, Kubernetes, and Docker
- Genuine product curiosity, with the ability to challenge, clarify, and shape work constructively alongside product and design
- Evidence of impact beyond your own code, including mentoring engineers and improving team practices, quality, or delivery
- Excellent communication skills across both technical and non-technical audiences
- Confident use of AI development tools, such as Cursor or Claude Code, while maintaining understanding, ownership, and code quality
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The level of appointment will reflect the scope and impact demonstrated through the interview process.
Nice to Have:
- Experience in B2B marketing or related domains
- Previous experience working in a product-led engineering team
- Experience with SvelteKit or a comparable modern frontend framework
- Experience operating systems on AWS and Kubernetes
And in return, Company Name offers:
- Competitive compensation package
- 25 days leave, increasing to 30 days based on service
- Additional'moments that matter days' for birthdays, sports days, and other important life moments
- Time off for volunteering
- Life assurance, healthcare cashplan, employee assistance programme, and Digital GP
- Cycle to work scheme
- Flexible spending allowance for health/dental insurance, wellbeing, family life, work life, hobbies and experiences
- Quarterly in-person and virtual social activities
- Office transfer and secondment opportunities
Why us?
Sustainable Pace, Real Balance
We believe great work happens when people have space to live their lives. No crunch culture, no expectation to be always-on. We trust you to do excellent work within reasonable hours. We have offices across the UK with a hybrid working policy, and are open to remote applicants if you’re not located close to an office.
We're Not a Feature Factory
We are building a product-led engineering culture where engineers are involved in the work before it becomes a list of tickets. You’ll work collaboratively from feedback capture through definition, solution shaping, build, review, and release. Your input will matter at every stage, and you’ll help the team continue moving towards shared ownership of product outcomes.
Clear Career Progression
We have a career framework with a clear path for those who want to deepen technical leadership, or a shift into management if that is your thing. We review progress against this roadmap regularly and encourage the development and growth of our people.
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