We’re looking for a Backend Engineer to help us build and optimise AI-powered tools that integrate with internal web applications, MS Word, and MS Outlook. You’ll work closely with senior engineers, our CTO, and stakeholders to design, build, and maintain high-quality, production-ready solutions. This role is ideal for someone with some experience in Python development and a basic understanding of AWS (or a strong desire to learn). If you’re excited about working on the backend of AI-driven applications and want to gain hands-on experience with cloud infrastructure, this is a great opportunity for you! If you are a motivated Backend Engineer with a passion for building and maintaining innovative solutions, we encourage you to apply. Join our team and contribute to the development of cutting-edge applications that drive our internal operations and future external projects. Requirements

1+ year work experience as a software engineer with knowledge of backend development (APIs, databases, web frameworks like Flask or FastAPI).
Strong academic background (STEM degree preferred)
Proficiency with Python
Familiarity with (or interest in) AWS services (S3, Lambda, OpenSearch).
Eagerness to learn about DevOps practices (CI/CD, infrastructure as code, cloud security).
A problem-solving mindset and willingness to take on new challenges.
Start-up experience would be advantageous but not essential - you should thrive in small teams and be willing to roll your sleeves up. Responsibilities
Develop and maintain backend services for internal-facing web applications.
Build APIs that power AI-driven document processing and workflow automation for the firm’s legal tools (KYC Compliance & Contracts)
Translate user feedback and requirements into functional production solutions
Work with AWS services (Lambda, OpenSearch, S3) to manage and optimize our infrastructure.
Monitor and troubleshoot production systems, ensuring reliability and performance. Benefits
25 days holiday + UK Bank Holidays
An additional day off for your birthday
Private healthcare
Annual subscription to your choice of Calm or Headspace
Early finish Fridays in the summer
Pension scheme (enhanced after 1 year service)
Enhanced family friendly policies after 1 year
Option to work from abroad for a max of 1 month per year Application Process Stage 1: Screening call with the Talent team Stage 2: Take home technical exercise Stage 3: Interview with VP of Engineering & Machine Learning Stage 4: Final interview with CTO About Avantia Law Avantia Law is redefining legal services through AI-powered innovation. Since our launch in 2019, we’ve experienced exceptional growth, helping top-tier investment funds and asset managers handle routine legal and compliance work faster and more cost-efficiently. We are powered by AI but committed to our people. We offer a culture of trust and flexibility to employees. We have an office in London for those wishing to spend some portion of their working time with colleagues, but employees are also welcome to work predominantly remotely. We have a truly diverse workforce, with members of staff coming from all corners of the world. There are around 100 of us at Avantia, so we’re small and friendly enough for you to get to know everyone and make an impact – but big enough to offer you great career prospects. Contact At Avantia, we are committed to fostering an inclusive and diverse workplace, and we firmly believe in equal opportunities for all. We value and celebrate the unique perspectives, backgrounds, and experiences that each individual brings to our team. We embrace diversity in all its forms. We strive to create an environment where everyone feels respected, valued and empowered to contribute their best work. Our hiring process is merit-based, and we welcome applications from all qualified individuals. We encourage you to communicate any reasonable accommodations you may need during the recruitment process and future employment. Please let your Talent team contact know ahead of any interview, we will be happy to suggest or confidentially discuss reasonable adjustments.

Skills

Python

AWS

APIs

Databases

Flask

FastAPI

DevOps

CI/CD

Infrastructure as code

Cloud security

Location

305 - 308, Metal Box Factory, 30 Great Guildford St, London SE1 0HS, UK

Backend Engineer, LegalTech

Avantia Law

London

Early applicant

Hybrid

Employee

Full-Time

Entry Level

1+ year work experience as a software engineer with knowledge of backend development (APIs, databases, web frameworks like Flask or FastAPI).
Strong academic background (STEM degree preferred)
Proficiency with Python
Familiarity with (or interest in) AWS services (S3, Lambda, OpenSearch).
Eagerness to learn about DevOps practices (CI/CD, infrastructure as code, cloud security).
A problem-solving mindset and willingness to take on new challenges.
Start-up experience would be advantageous but not essential - you should thrive in small teams and be willing to roll your sleeves up. Responsibilities
Develop and maintain backend services for internal-facing web applications.
Build APIs that power AI-driven document processing and workflow automation for the firm’s legal tools (KYC Compliance & Contracts)
Translate user feedback and requirements into functional production solutions
Work with AWS services (Lambda, OpenSearch, S3) to manage and optimize our infrastructure.
Monitor and troubleshoot production systems, ensuring reliability and performance. Benefits
25 days holiday + UK Bank Holidays
An additional day off for your birthday
Private healthcare
Annual subscription to your choice of Calm or Headspace
Early finish Fridays in the summer
Pension scheme (enhanced after 1 year service)
Enhanced family friendly policies after 1 year
Option to work from abroad for a max of 1 month per year Application Process Stage 1: Screening call with the Talent team Stage 2: Take home technical exercise Stage 3: Interview with VP of Engineering & Machine Learning Stage 4: Final interview with CTO About Avantia Law Avantia Law is redefining legal services through AI-powered innovation. Since our launch in 2019, we’ve experienced exceptional growth, helping top-tier investment funds and asset managers handle routine legal and compliance work faster and more cost-efficiently. We are powered by AI but committed to our people. We offer a culture of trust and flexibility to employees. We have an office in London for those wishing to spend some portion of their working time with colleagues, but employees are also welcome to work predominantly remotely. We have a truly diverse workforce, with members of staff coming from all corners of the world. There are around 100 of us at Avantia, so we’re small and friendly enough for you to get to know everyone and make an impact – but big enough to offer you great career prospects. Contact At Avantia, we are committed to fostering an inclusive and diverse workplace, and we firmly believe in equal opportunities for all. We value and celebrate the unique perspectives, backgrounds, and experiences that each individual brings to our team. We embrace diversity in all its forms. We strive to create an environment where everyone feels respected, valued and empowered to contribute their best work. Our hiring process is merit-based, and we welcome applications from all qualified individuals. We encourage you to communicate any reasonable accommodations you may need during the recruitment process and future employment. Please let your Talent team contact know ahead of any interview, we will be happy to suggest or confidentially discuss reasonable adjustments.