At a Glance
- Tasks: Build AI-enabled applications and lead teams in delivering innovative software solutions.
- Company: Focused, a dynamic tech company that values collaboration and continuous learning.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Collaborative environment with a focus on mentorship and career development.
- Why this job: Join us to shape the future of AI-powered software and make a real impact.
- Qualifications: Experience with LangChain, strong leadership skills, and a passion for quality code.
The predicted salary is between 70000 - 90000 £ per year.
At Focused, we move quickly to deliver quality software that achieves client outcomes and meets their customer’s needs. We strategically partner with our clients to leverage our expertise in design and software, while our clients bring their own domain expertise. We work with a variety of clients from different industries, collaborating as we get new products to market, modernising legacy systems, or helping teams learn the skills they need to be successful.
Our values:
- Listen first. We are experts in product practices but lifelong learners in the domain of our customers. We research, collaborate, and understand.
- Learn why. We ask questions and talk to users to understand problem spaces, objectives, and goals, which allows us to deeply invest and drive towards the outcomes of our clients.
- Love your craft. We love diving into a variety of domains and solving problems. We take pride in delivering value, in communicating progress, and guiding our clients to success.
This role would play a crucial role in shaping and implementing engineering best practices and ensuring the successful delivery of complex software projects. With clients, we develop trust and influence - we are unintimidated and unintimidating. With colleagues, we set the standard for how we deliver success for clients.
What would you be doing?
- Build AI-enabled applications leveraging LangChain and LLMs to deliver meaningful, production-ready outcomes for clients.
- Deep expertise in LangChain, LangGraph and LangSmith.
- Lead teams through end-to-end delivery across the stack, from backend services to modern web UIs.
- Pair program daily with teammates and clients to share knowledge, improve code quality, and grow together.
- Practice TDD and continuous refactoring to ensure code is reliable, maintainable, and understandable.
- Guide architecture decisions to support scalability, observability, and performance.
- Collaborate closely with designers, product managers, and stakeholders to continuously deliver valuable software.
- Coach developers on the team through pairing, mentoring, and modelling healthy engineering culture.
- Influence technical direction beyond the team, working across client orgs and Focused’s internal practices to share lessons, shape approaches, and raise the collective bar.
- Stay curious through experimenting with new patterns in the GenAI space, share what works and what doesn’t, and help evolve how we build AI-powered software.
We are excited about you, because you:
- You’re a hands-on, full stack engineer with a strong track record of delivering software in collaborative, agile environments.
- You’ve worked with LangChain (or similar agentic frameworks), and understand how to architect AI-native systems responsibly and effectively.
- You have experience leading engineering teams and feel confident mentoring and supporting other developers.
- You believe that code quality matters, and that TDD and pairing help build better systems and stronger teams.
- You’ve worked across multiple languages or frameworks (e.g., Python, Node, Java, React, Next.js) and are pragmatic about tool selection.
- You’re excited about what’s happening in the AI space but stay focused on delivering value.
- You have experience navigating complex organisations, building bridges across functions, and helping teams adopt modern development practices.
- You’re as comfortable in the code as you are in a client meeting and can translate technical risks and wins into language anyone can understand.
- You love to share what you’re learning and make the team around you better.
Lead Agent Engineer (Langchain) employer: Focused Labs
At Focused, we pride ourselves on fostering a dynamic work culture that champions collaboration, continuous learning, and innovation. As a Lead Agent Engineer, you will not only have the opportunity to work with cutting-edge AI technologies but also benefit from a supportive environment that encourages mentorship and professional growth. Our commitment to delivering quality software while nurturing our employees' skills makes us an exceptional employer in the tech industry.
StudySmarter Expert Advice🤫
We think this is how you could land Lead Agent Engineer (Langchain)
✨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 Focused Labs 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 Focused Labs.
✨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 Focused Labs.
✨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 Focused Labs 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 Lead Agent Engineer (Langchain)
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 Focused Labs.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Focused Labs 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 Focused Labs
✨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 Focused Labs 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.
