Abrar Admin

Nelly Works

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 NB: This role is based in London office, 5 days per week, no visa support is available.
 
 
 
 
 
 We're looking for a
 
 Backend Engineer
 
 to join an early-stage, revenue-generating AI-driven SaaS platform. You'll report directly to the Head of Engineering and own systems end-to-end. This is the sweet spot: early enough to design foundational systems, but with real customers, revenue from day one, and meaningful equity. You'll work in a small senior team where your code directly impacts business results.
 
 
 
 
 
 
 Perfect for:
 
 Backend engineers who love owning systems end-to-end, want early-stage equity upside, and thrive in fast-moving environments.
 
 
 
 
 
 What you'll be doing
 
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 Own systems end-to-end
 
 : Scope, build, ship, and iterate on backend services and infrastructure that power our core product.
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 Build scalable infrastructure
 
 for AI agent systems, dialer infrastructure, and intelligent pipelines that handle thousands of concurrent operations.
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 Design and implement core backend systems
 
 including APIs, databases, event processing, and real-time data pipelines that support the product.
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 Collaborate with frontend engineers and product leadership
 
 to translate customer needs into technical architecture and implementation.
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 Own reliability and performance
 
 : Optimise systems for speed, scalability, and robustness as the user base grows.
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 Contribute to technical direction
 
 and engineering standards, helping shape how we approach problems and build systems.
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 Ship regularly and iterate
 
 : Move fast, gather feedback from real users, and continuously improve what you build.
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 Work on systems at scale
 
 : Build the dialer infrastructure, agent systems, intelligence pipelines, and data processing engines that only a few companies have needed to construct.
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 What we're looking for
 
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 Strong technical foundation
 
 : You've built complex systems at scale - whether at a top-tier tech company, in a startup, or through ambitious projects. Proof of building something significant matters more than pedigree.
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 Strong backend fundamentals
 
 : Deep knowledge of data structures, algorithms, system design, and performance trade-offs.
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 Startup DNA
 
 : Comfort working in a small team, wearing multiple hats, and moving at speed without heavy process.
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 AI/LLM experience (a plus)
 
 : Experience building with AI agents, RAG systems, or LLM-powered features is valuable but not required.
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 End-to-end ownership mindset
 
 : You've shipped something meaningful on your own&mdash;a project, open source tool, or business&mdash;and you drive work from conception to production.
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 Modern backend fundamentals
 
 : Comfortable with modern backend languages and frameworks, plus exposure to databases and infrastructure tooling. Strong fundamentals matter more than a specific language.
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 Problem-solving orientation
 
 : You think systematically about complex problems and make pragmatic decisions about trade-offs.
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 Collaborative mindset
 
 : You enjoy working closely with small, ambitious teams and can communicate ideas clearly with engineers and non-technical stakeholders.
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 What you'll need
 
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 Professional software engineering experience
 
 : 3+ years for mid-level roles, 5+ years for senior roles.
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 Strong backend and full-stack web development skills
 
 : Comfortable building scalable servers, APIs, and databases.
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 Computer science fundamentals
 
 : Solid grasp of data structures, algorithms, system design, and performance optimization.
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 TypeScript/JavaScript or equivalent
 
 : Production experience with modern backend languages and frameworks.
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 Database and infrastructure knowledge
 
 : Experience designing schemas, optimizing queries, and working with modern databases (SQL/NoSQL).
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 Ability to work in an early-stage environment
 
 : Comfort with ambiguity, evolving priorities, and hands-on technical work.
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 Office-first culture
 
 : Based in London, 5 days per week. We believe in-person collaboration drives better decisions and faster iteration.
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 Sometimes late hours required
 
 : Critical customer operations occasionally require availability outside standard hours&mdash;a sign you're working on something that matters.
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 CS degree or equivalent experience
 
 : Academic foundation in computer science or equivalent self-taught depth.
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 Meaningful equity
 
 : Early-stage equity participation reflecting your impact and contribution to the company's growth.
 
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 Real impact from day one
 
 : Your code directly generates business outcomes. No busywork, no bloat.
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 Architectural ownership
 
 : Own systems end-to-end, from design through production and iteration.
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 Work on rare systems
 
 : Build infrastructure that most engineers have only read about&mdash;dialer systems, AI agents, real-time intelligence pipelines.
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 Small, senior team leverage
 
 : A handful of engineers with significant autonomy shipping systems that power outcomes for hundreds of customers.
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 Early-stage upside
 
 : Join at a critical growth inflection point with product-market fit and clear trajectory.
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 Proven business model
 
 : Work on a product that customers actively pay for and rely on&mdash;the most motivating kind of problem to solve.
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 Direct relationship with leadership
 
 : Close collaboration with founders and product leadership means your ideas shape the direction.
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 Opportunity to grow
 
 : As the company scales, so do the opportunities for technical depth, mentorship, and leadership.
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 Meaningful equity
 
 : Early-stage equity participation reflecting your impact and contribution to the company's growth.
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 </ul>
 
 
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Senior Backend Engineer

Join Nelly Works and explore 1   exciting career opportunities. They're hiring for various roles with options for remote or on-site work. Apply today and become part of their innovative team.

Nelly Works

About Company

Senior Backend Engineer