Senior Software Engineer (Agentic AI)

BigHand; Greater London; Hybrid; GBP 60,000 - 95,000; Full time

Benefits offered by this job

25 days holiday

Private medical

Online wellbeing programs

Volunteer days

Career growth opportunities

Pension scheme

Cycle to Work Scheme

Remote work options

Job summary

BigHand is seeking a Full-Stack Engineer to design and ship Matter Pricing products post-acquisition. You will work on features end-to-end, balancing UI/UX with robust backend services and agentic AI capabilities.

The role demands at least 3 years of commercial experience, strong TS/React skills, and a STEM background. You will operate in a hybrid setup with modern DevOps tooling including AWS, Terraform and GitLab CI.

Qualifications

• Minimum of 3 years of commercial work experience.
• Strong TypeScript and React skills with backend competency (Python or Go).
• Interest and practical experience with agentic AI and LLMs.
• Experience designing clean, minimal user interfaces.

Responsibilities

• Own, build and ship features end to end, from UI to backend services.
• Design clean, minimal user experiences with close collaboration with design and product.
• Explore agentic AI and LLM capabilities to improve the product safely.
• Contribute to technical discussions and refine requirements.
• Deliver consistently within an agile framework with high quality output.
• Apply modern SDLC practices including code reviews, testing and CD.

Skills

TypeScript

React

Python

Go

UX design

Agile methodologies

Education

STEM degree

Tools

AWS

Terraform

GitLab CI

Job description

BigHand offers technology solutions for busy legal professionals that provide data and insights to increase value and profits. Through our expert knowledge and innovative technology, we enable our customers to achieve enhanced efficiency, better decision-making and harness their competitive edge.

We build with tomorrow in mind, transforming ideas into action and empowering our customers to succeed in a world of constant change. We make big happen for our customers.

We are a business driven by our values and have these at the centre of everything we do. Our BigHanders are dedicated to building a culture where We Win Together, We Love to Learn, We Do the Right Thing, We Own It and We Find the Fun.

About the role

BigHand builds software that legal organisations rely on every day. We are looking for a Full-Stack Engineer to help us design and ship our Matter Pricing products after our acquisition of Ayora AI, where a clean, considered user interface meets genuinely intelligent behaviours underneath.

This is a hands-on role for a Full-Stack Software Engineer who wants their work in production rather than as proof of concept. You will build the conventional and agentic AI experiences that showcase the product, contribute to how problems are framed as well as how they are solved, and take real ownership of the quality of what we release.

What you’ll do

• Own, Build and ship features end to end, from interface through to backend services and data.
• Design clean, minimal user experiences with close attention to detail, working alongside design and product.
• Explore and apply agentic AI and LLM capabilities where they meaningfully improve the product and work safely and efficiently with agentic engineering systems.
• Contribute to technical discussion and help refine requirements rather than simply consuming them.
• Deliver consistently within a collaborative agile framework, with a track record of predictable, high-quality output.
• Develop well-constructed solutions using the best tools available, avoiding fragile shortcuts taken for short-term speed or to sidestep discussion.
• Apply modern software development lifecycle practices, including code review, testing and continuous delivery.

What we’re looking for

• Strong TypeScript and React skills, with competency in at least one of our core backend languages (Python and/or Go) or a highly transferable equivalent.
• At least three years of commercial work experience.
• An analytical background, evidenced by a STEM degree in a technical subject. Physical sciences or mathematics are preferred.
• Interest and practical experience with agentic AI and LLMs, and with the intersection between conventional UI and agentic processes.
• Experience working safely and efficiently with agentic engineering systems.
• Experience with design and UX, with a keen eye for detail and for minimalist, clean interfaces.
• A solid understanding of modern software development lifecycle practices.
• The ability to navigate typical problems independently, contribute to discussion and help shape technical requirements.
• An insatiable appetite for learning and for acquiring new knowledge, skills and experience.
• Comfort operating independently on both existing and new systems while preserving and improving a consistent project structure.
• A positive force in building the team as we grow and develop into more senior positions.
• A habit of introducing new technology and practices that accelerate the team, for example through lunch and learn sessions.
• Exposure to our DevOps stack: AWS, Terraform and GitLab CI.
• Experience in the legal industry or another regulated environment such as health or financial services.
• Experience working directly with customers.

What we offer

• 25 days holiday (exc. bank holidays) + 3 BigHand days off between Christmas & New Year
• Various wellbeing benefits including private medical, vision, online wellbeing programs & webinars, access to online therapy and Employee Resource Groups (ERG)
• Company-wide Wellness day, for our teams all across the globe to switch off and spend the day doing something to nourish their mental health
• Opportunities to give back with company volunteer events and individual volunteer days
• Career growth opportunities and study leave allowance
• Family benefits including enhanced parental leave, secondary caregiver leave and fertility support
• Financial benefits including pension scheme, life assurance, and salary sacrificing
• Cycle to Work Scheme and Tech Scheme
• Growing business with a global presence, flexible working, modern offices, and remote work options

Our DEI Commitment

We welcome the unique value and individuality that you can bring to BigHand. We are an equal opportunity employer and are dedicated to recruiting solely based on capability and potential regardless of race, gender, sexual orientation, gender identity or expression, age, educational background, national origin, religion, military status or physical ability. Our BigHanders are dedicated to advancing our culture of belonging by embracing differing viewpoints, opinions, thoughts, and ideas.