Flask Python AI Engineer with LangChain Experience – UK Remote
Flask Python AI Engineer with LangChain Experience – UK Remote

Flask Python AI Engineer with LangChain Experience – UK Remote

Full-Time 36000 - 60000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and build innovative GenAI applications using Flask and LangChain.
  • Company: Fast-growing AI start-up transforming professional services globally.
  • Benefits: Competitive pay, fully remote work, 25 days holiday, and career growth opportunities.
  • Why this job: Join a passionate team and make a real impact in the GenAI revolution.
  • Qualifications: 5+ years Python experience, Flask expertise, and GenAI product development.
  • Other info: Collaborative environment with learning resources and mentorship.

The predicted salary is between 36000 - 60000 £ per year.

Flask Python AI Engineer with LangChain Experience – UK Remote

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  • About: Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes.
  • Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques.
  • Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP
  • Please only apply if you are fully eligible to work in the UK

Who we are

Kalisa is a fast-growing AI start-up enabling the next generation of professional services. Our platform helps organisations turn their knowledge and expertise into chat agents, automated workflows and AI-powered experiences – securely, reliably, and at scale.

We are based in the UK and service a rapidly growing client base around the world. Due to this continued growth we are expanding our engineering team to help us scale our platform and build new functionality.

We are at the start of the GenAI revolution, and this is an opportunity like no other. If you think you are the right person for the role, we encourage you to apply and look forward to hearing about your tech journey.

Who you are

  • We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications.
  • You will join a small, agile, and passionate team to enhance and scale our GenAI platform.
  • This will involve working closely with our team to deliver new features, improve existing functionality, and ensure seamless integration with new foundation models as they become available.
  • You will be able to work independently, be self-sufficient, eager to learn, be able to build something from scratch and see it through to completion.

As a key team member, you will:

  • Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem.
  • GenAI Integration: Work with LangChain to implement prompt engineering techniques, RAG pipelines, and intelligent agent capabilities.
  • RAG & Vector Databases: Implement and optimise RAG strategies, semantic search capabilities, and embeddings-based retrieval; integrate and manage vector databases.
  • Relational Databases: Leverage MySQL and SQLAlchemy as the ORM to design robust, optimised schemas and implement efficient data retrieval and storage strategies.
  • Cloud Deployment: Integrate and deploy services across cloud platforms (Azure, AWS, GCP), ensuring robust infrastructure, monitoring, and observability.
  • Data Security & Compliance: Collaborate with security teams and architects to ensure data privacy, compliance, and reliable access controls within enterprise environments.
  • Continuous Improvement: Participate in code reviews, contribute to technical documentation, and proactively identify opportunities for platform optimisation and enhancement.

Requirements

Professional Experience:

  • Python Proficiency: Minimum of 5 years of experience working with Python, the Flask framework, developing relational database-driven backend services, APIs and web apps.
  • Front-End Integration: Demonstrable experience of working with Tailwind CSS to implement responsive website and web app designs.
  • GenAI Expertise: A minimum of 2 years of experience building and shipping at least one GenAI product (e.g., LLM-based app, custom chatbot, RAG-driven knowledge platform).
  • LangChain: Demonstrable experience working with LangChain.
  • RAG & Vector Technologies: Demonstrable knowledge of RAG techniques, vector databases, semantic search, and embedding models.
  • Responsible AI: Guard railing, anti-hallucination techniques and GenAI evaluation techniques.

Nice to have:

  • Front-End Integration: Working knowledge of HTMX to build dynamic web applications.
  • Cloud Platforms: Practical experience deploying and managing applications on at least one major cloud provider (Azure, AWS, or GCP).

Additional Requirements:

  • Based in the UK and authorised to work.
  • Strong communication skills and the ability to work effectively in a fully remote team environment.
  • Fluent English speaker and writer.
  • Most of our work is in written form, which means being a good writer is very important. The importance of high-quality writing is carried through our designs, internal project discussions, code comments and the code itself.
  • Self-starter mentality with a focus on delivering tangible results.

What We Offer

  • Competitive Pay: Based on your experience to date.
  • Fully Remote: Enjoy the freedom to work from anywhere in the UK.
  • Pension
  • 25 Days Holiday + Bank Holidays
  • High Impact Work: Contribute to a fast-growing platform already used globally, enhancing your experience and portfolio.
  • Career Growth Opportunities: Work at the intersection of cutting-edge AI research, product innovation, and world-class engineering practices.
  • Latest Cloud & AI Technology: From AWS, Azure and GCP.
  • Learning and Development Opportunities: Including access to resources and mentorship.
  • A Friendly, Supportive and Passionate Team.

Our Hiring Process

  • 10 min video demonstration: We will ask you to record a 10 mins video showcasing a LangChain (ideally!) GenAI project you have built or took part in developing, clearly showcasing and explaining the application of LLMs and vector embedding of external documents or data, guard railing, anti-hallucination techniques and GenAI evaluation techniques.
  • Initial Interview, including GenAI project walkthrough: Meet with our CEO for an in-depth discussion about your experience, approach, and technical skills. This is an opportunity for us to get to know each other and ensure we share the same vision and values. We will discuss the GenAI project you showcased in the previous step, and discuss your design decisions, implementation details, and the overall outcome, giving us a chance to understand your problem-solving approach and coding style.
  • Technical Challenge: If you are successful in the initial interview, you will be invited to complete a technical challenge that will be briefed based on your experience. We expect this to take 1-2 days, and you will be compensated for your time.

If you are excited about pushing the boundaries of what is possible with GenAI and you meet the above criteria, we would love to hear from you.

Direct applications only – No recruiters

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

Technology, Information and Internet

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Flask Python AI Engineer with LangChain Experience – UK Remote employer: Kalisa

Kalisa is an exceptional employer, offering a fully remote work environment that empowers you to thrive from anywhere in the UK. With competitive pay, generous holiday allowances, and a strong focus on career growth, you'll be part of a passionate team at the forefront of the GenAI revolution, working with cutting-edge technology while enjoying a supportive and collaborative culture.
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Contact Detail:

Kalisa Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Flask Python AI Engineer with LangChain Experience – UK Remote

Tip Number 1

Get your tech journey ready to share! When you land that interview, be prepared to walk us through a GenAI project you've worked on. Highlight your design decisions and the impact of your work—this is your chance to shine!

Tip Number 2

Brush up on your Flask and LangChain skills! Make sure you can talk confidently about how you've used these technologies in real-world applications. We want to see your expertise in action, so be ready to discuss specific challenges you faced and how you overcame them.

Tip Number 3

Show us your problem-solving skills! During the technical challenge, think critically and demonstrate your thought process. We love seeing how you approach problems, so don't just focus on the final answer—explain your reasoning along the way.

Tip Number 4

Apply directly through our website! We value direct applications and want to hear from you personally. This shows your enthusiasm for the role and gives us a chance to connect with you right from the start.

We think you need these skills to ace Flask Python AI Engineer with LangChain Experience – UK Remote

Flask
Python
LangChain
GenAI Applications
RAG Techniques
Vector Databases
MySQL
SQLAlchemy
Cloud Deployment
Azure
AWS
GCP
Tailwind CSS
HTMX
Strong Communication Skills

Some tips for your application 🫡

Tailor Your Application: Make sure to customise your CV and cover letter to highlight your experience with Flask, Python, and LangChain. We want to see how your skills align with our needs, so don’t hold back on showcasing relevant projects!

Show Off Your Writing Skills: Since we value high-quality writing, ensure your application is clear, concise, and free of errors. Use this opportunity to demonstrate your communication skills, as they’re crucial for our remote team.

Be Authentic: Let your personality shine through in your application! We’re looking for passionate individuals who are eager to learn and grow, so don’t be afraid to share your tech journey and what excites you about GenAI.

Apply Through Our Website: We encourage you to apply directly through our website. This helps us streamline the process and ensures your application gets the attention it deserves. Plus, it’s super easy!

How to prepare for a job interview at Kalisa

Know Your Tech Inside Out

Make sure you’re well-versed in Flask, Python, and LangChain. Brush up on your experience with GenAI applications and be ready to discuss specific projects you've worked on. This will show that you not only understand the technology but can also apply it effectively.

Prepare for the GenAI Project Walkthrough

Since you'll need to present a real-life GenAI project, choose one that highlights your skills and contributions. Be clear about your design decisions, implementation details, and outcomes. Practising this presentation will help you communicate your thought process confidently.

Show Off Your Problem-Solving Skills

During the interview, be prepared to discuss how you approach challenges. Think of examples where you’ve had to troubleshoot or optimise a system. This will demonstrate your analytical thinking and ability to work independently, which is crucial for the role.

Communicate Clearly and Effectively

Since strong writing skills are essential, practice articulating your thoughts clearly. Whether it's discussing technical concepts or your previous experiences, being able to convey your ideas succinctly will make a great impression. Remember, communication is key in a remote team!

Flask Python AI Engineer with LangChain Experience – UK Remote
Kalisa

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  • Flask Python AI Engineer with LangChain Experience – UK Remote

    Full-Time
    36000 - 60000 £ / year (est.)

    Application deadline: 2027-11-25

  • K

    Kalisa

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