At a Glance
- Tasks: Own backend systems and architecture for money movement and tenancy management.
- Company: Join Letly, an innovative AI-native company transforming the rental market.
- Benefits: Competitive salary, equity, and a dynamic, high-growth environment.
- Other info: Be part of a small, agile team driving significant industry change.
- Why this job: Make a real impact in fintech by building systems that manage people's homes and finances.
- Qualifications: 6+ years in backend development with strong system design and API skills.
The predicted salary is between 72000 - 88000 £ per year.
The role involves owning the backend systems that Letly runs on, including the architecture that other engineers build upon. These systems are critical for managing real people's money, homes, and legal exposure, where correctness, reliability, and scale are essential.
This is a senior-to-staff hire. At the senior level, you will own systems others build on, make architectural decisions, set patterns, and raise the bar around you. At the staff level, you will own the technical direction of a domain, decide what gets built and how, unblock other engineers, and be accountable for system behaviour under load.
What you'll work on:
- Money movement: Rent, deposits, and payouts through pooled client-money accounts, focusing on idempotent processing and split-settlement.
- Reconciliation & bookings: A penny-accurate, self-healing ledger reconciling bank activity across thousands of tenancies.
- Event-driven consistency: Services coordinating over Pub/Sub with sagas across offer, contract, tenancy, and payment.
- AI harnesses in production: Deploying agentic AI into operational settings with necessary guardrails and observability.
Our stack: We build on NestJS and TypeScript on GCP/GKE, with MongoDB, Redis, and GCP Pub/Sub. You don't need to arrive fluent in it; we hire strong backend engineers experienced with any robust framework.
How we build: We focus on small, well-factored services, TDD and DDD as defaults, trunk-based CI/CD, and clean rollbacks.
What we're looking for:
- 6+ years building and operating production backend systems (more for staff).
- Fluency in at least one backend language and framework.
- Real distributed-systems experience: eventual consistency, idempotency, concurrency, and their failure modes at production scale.
- Strong API and data modelling skills, plus cloud/containerised deployment experience.
- AI-Native engineer: proficient in using AI across all layers of work.
- Senior: a track record of designing systems for others to build on.
- Staff: experience setting technical direction across several services or teams.
Nice to have:
- Experience with MongoDB and GCP/GKE.
- Familiarity with event-driven architecture and message brokers.
- Experience in payments, ledgers, reconciliation, or financial-correctness domains.
- Background in fintech or regulated, high-trust environments.
Who does well here:
- Precise about correctness — these systems move money;
Software Engineer — Staff / Senior in London employer: Worky
Letly is an exceptional employer that fosters a collaborative and innovative work culture, where junior-to-mid backend engineers can thrive. With a strong emphasis on mentorship and hands-on experience from day one, employees are empowered to take on real production responsibilities while working with cutting-edge technologies. Located in a dynamic environment, Letly offers ample opportunities for professional growth and development, making it an ideal place for those seeking meaningful and rewarding careers in tech.
StudySmarter Expert Advice🤫
We think this is how you could land Software Engineer — Staff / Senior in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Worky or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Worky.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Worky.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Worky that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Software Engineer — Staff / Senior in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Worky.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Worky and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Worky
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Worky uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
