Senior Software Engineer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 1d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 48d ago
The date the source published, not the day we noticed it (2026-07-29). Last seen at its source just now.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
United Kingdom
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay £75k–101.3k/yr
Middle 50% of 20 listings that do state pay — Engineering · Senior · United Kingdom · GBP/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
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ashby employer's own board first seen 11d ago · last seen just now
The listing
Aveni is redefining how financial institutions use AI. We build real, production-ready agentic systems that reshape how banks, advisers and financial services firms operate, replacing fragmented processes with intelligent, end-to-end workflows.
We have been recognised as Fintech of the Year for two consecutive years and awarded Best Specialist Technology Service at the Professional Adviser Awards 2025. Backed by leading investors including Puma Private Equity, and commercially supported by Lloyds Banking Group and Nationwide Building Society, we previously completed one of Scotland’s largest Series A rounds. Since then, we’ve continued to grow rapidly as adoption of AI in financial services accelerates, and we’re now scaling our engineering organisation to meet that demand.
Our engineering team includes experienced software engineers and PhD-level AI specialists, with strong ties to the University of Edinburgh, giving you access to exceptional expertise and opportunities for continuous learning as part of the day-to-day work.
The Role
As a Senior Software Engineer at Aveni, you’ll be responsible for building and scaling the products that sit on top of FinLLM (the UK's first LLM for the Financial Services industry) and other LLMs, enabling financial institutions to adopt AI safely and effectively.
You won’t be expected to build or train the LLMs themselves, instead you’ll be engineering the platforms, services, user interfaces and integrations that bring those models to life in the hands of advisers, analysts and banking teams.
Your work will focus on:
Designing and implementing robust event-driven microservices and APIs
Building scalable, cloud-native systems on AWS
Developing modern, responsive React front-ends
Integrating LLM-powered capabilities into real-world workflows
Collaborating closely with product and AI specialists to turn ideas into reliable, customer-ready features
What you’ll be working with
You should be comfortable with most of our core technologies:
Node.js and TypeScript
React and modern front-end tooling
AWS (e.g., Lambda, ECS/Fargate, API Gateway, SQS/SNS, DynamoDB, RDS)
NestJS or equivalent back-end frameworks
Microservices and event-driven architectures
We also actively embrace AI coding assistants (such as Claude Code) to speed up development, improve code quality and reduce repetitive work — and we encourage engineers to use these tools effectively.
What we’re looking for:
Experience building production systems using Node.js / TypeScript
Hands-on experience developing UIs with React
Solid understanding of cloud-native engineering on AWS
Experience with microservices, messaging patterns and distributed systems
A commitment to clean code, testing, observability and operational excellence
A proactive and motivated mindset — someone who wants to build, ship and iterate quickly
Interest in AI-powered products and a drive to learn
Benefits at Aveni
What you’ll love
Remote-first working across the UK.
Work abroad policy for when you want a change of scenery.
Co-working spaces available if you want an office buzz sometimes.
34 days holiday (including flexible bank holidays) and your birthday off.
Company-wide off-sites (yes, karaoke may happen).
Optional Personal Development Plan.
Flexible benefits platform: you choose the benefits that matter most to you (not the company).
Protection essentials, because we know they matter - Life Insurance, Income protection, critical illness cover, Pension (up to 5% matched employer contribution and optional increased contributions).
Private health- and dental care for your peace of mind.
Potential share options, have a stake in what you’re building.
Enhanced family leave.
Join Us in Making a Difference
At Aveni, we believe that diversity drives innovation. We've built our business to ensure an inclusive workplace where everyone feels valued and empowered to contribute their best work. If you're passionate about technology and its ability to drive positive change for the future of financial services, we'd love to hear from you.
Even if you don’t meet 100% of requirements, we’d like to hear from you anyway if you believe you’d fit in. Apply now to join us on our mission to transform the financial services industry through AI.