At a Glance
- Tasks: Lead the development of a scalable AI-first .NET platform and architect innovative systems.
- Company: Join a high-velocity tech team focused on cutting-edge AI solutions.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Dynamic environment with a focus on rapid innovation and career advancement.
- Why this job: Make a real impact by transforming AI concepts into robust production systems.
- Qualifications: Expertise in C#, PostgreSQL, and architectural design for high-performance applications.
The predicted salary is between 48000 - 84000 £ per year.
We have a working AI Proof of Concept (PoC) that proves our vision; now we need the engine that powers the product at scale. As our Senior Software Engineer, you will be the lead architect and primary builder of our production-grade, AI-first .NET platform. Working directly with the Head of Technology, you will be responsible for moving us from experimental scripts to a robust, observable, and scalable Agentic AI Architecture. We are a high-velocity team that values "Ship Fast, Fix Fast." We utilize agentic AI tools like Claude Code to bypass the boilerplate, freeing you to focus on the high-value architectural challenges of a production-ready system.
What You'll Do
- Productionize AI Workflows: Transform raw AI prompts and experimental logic into resilient production code using .NET 10/C# 14.
- Architect Agentic Systems: Design and build the "Agent Loops" (Planning → Execution → Observation) that allow our AI to interact reliably with our internal databases and external APIs.
- Build for Reliability: Implement "Evals" and Guardrails to manage the non-deterministic nature of LLMs, ensuring outputs are safe, accurate, and consistent for our users.
- Cloud Infrastructure: Partner with the Head of Tech to design and deploy the Azure/AWS infrastructure required to support high-concurrency AI workloads, focusing on latency and cost-per-token optimization.
- AI-First Tooling: Lead the team in adopting and optimizing AI-assisted development workflows (Claude Code, Cursor, etc.) to maintain our 10x velocity.
- Strategic Evolution: Collaborate on the long-term technical roadmap, identifying when to use fine-tuned Small Language Models (SLMs) vs. Frontier LLMs.
Requirements
The Must-Haves
- C# Mastery: You are an expert in the modern .NET ecosystem.
- PostgreSQL Expert: You know how to design schemas, optimize queries, and leverage Postgres for high-performance applications.
- Architectural Thinker: You can look at a PoC and know exactly what it needs to survive 100x the current load.
Bonus Points (Will make you stand out)
- Blazor: Experience with Blazor (Server or WebAssembly) for building real-time UIs.
- Azure ML: Any exposure to Azure Machine Learning services or deploying ML models into a production pipeline.
- AI Workflow: You already use Claude Code, Cursor, or GitHub Copilot in your daily flow.
Senior Software Engineer (C# / PostgreSQL / AI-Native) employer: zendbox
Zendbox is an exceptional employer that prioritises the well-being and development of its employees, offering a hybrid work model and an impressive 33 days of annual leave. With a strong focus on fostering a positive workplace culture and providing ample opportunities for career growth, Zendbox empowers its team to thrive in a dynamic distribution environment at their Kent HQ. Join us to be part of a forward-thinking organisation that values your contributions and supports your professional journey.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer (C# / PostgreSQL / AI-Native)
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups, and connect with potential colleagues on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving C# and PostgreSQL. This gives you a chance to demonstrate your expertise and architectural thinking, making you stand out to hiring managers.
✨Tip Number 3
Prepare for technical interviews by brushing up on your problem-solving skills. Practice coding challenges and be ready to discuss your past projects, especially how you've tackled high-performance applications and AI workflows.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about joining our high-velocity team.
We think you need these skills to ace Senior Software Engineer (C# / PostgreSQL / AI-Native)
Some tips for your application 🫡
Show Off Your C# Skills:Make sure to highlight your expertise in C# and the modern .NET ecosystem. We want to see how you've tackled challenges in your previous projects, so don’t hold back on those juicy details!
Talk About PostgreSQL:Don’t forget to mention your experience with PostgreSQL! Share examples of how you've designed schemas or optimised queries. This is your chance to show us you can handle high-performance applications like a pro.
Architectural Thinking is Key:We’re looking for someone who can think big! In your application, explain how you approach architectural challenges and how you’ve transformed PoCs into scalable solutions. We love a good story about overcoming obstacles!
Apply Through Our Website:Ready to take the plunge? Make sure to apply through our website! It’s the best way for us to keep track of your application and get you into our high-velocity team as soon as possible.
How to prepare for a job interview at zendbox
✨Master the Tech Stack
Make sure you brush up on your C# and PostgreSQL skills before the interview. Be ready to discuss specific projects where you've used these technologies, especially in building scalable systems. Highlight any experience with .NET 10 and how you've tackled architectural challenges.
✨Showcase Your Architectural Thinking
Prepare to talk about how you approach designing systems for high loads. Think of examples where you've transformed a PoC into a production-ready system. Discuss your thought process on creating reliable 'Agent Loops' and managing non-deterministic outputs from AI models.
✨Familiarise Yourself with AI Tools
Since the role involves working with AI-first tooling, make sure you know your way around tools like Claude Code and Cursor. Share how you've integrated these tools into your workflow to enhance productivity and maintain high velocity in development.
✨Understand Cloud Infrastructure
Get a good grasp of Azure and AWS services, particularly in relation to deploying AI workloads. Be prepared to discuss how you've optimised for latency and cost in previous projects. This will show that you can partner effectively with the Head of Technology to build robust cloud solutions.
