Senior Software Engineer

Addition Solutions LTD; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A fast-growing consultancy in London is seeking a Senior Software Engineer to lead AI and data-driven software solutions. The ideal candidate will possess strong expertise in Python and SQL, alongside hands-on experience in building data pipelines. This role offers competitive salary, bonus, and the opportunity to work in a dynamic team environment with hybrid work arrangements.

Benefits

26 days’ holiday + bank holidays + your birthday off

BUPA private healthcare

£1,000 annual development budget

Performance-based bonus

Work from abroad for one month each year

Qualifications

• Strong track record delivering complex software projects end-to-end.
• Deep expertise in Python and SQL.
• Advanced knowledge of Docker.

Responsibilities

• Leading the end-to-end design and build of advanced AI and data-led software solutions.
• Training, tuning and deploying machine learning models into production.
• Integrating new solutions with existing systems.

Skills

Strong track record delivering complex software projects end-to-end

Deep expertise in Python and SQL

Hands‑on experience in building data pipelines and APIs

Solid understanding of cloud platforms (AWS/Azure) and Linux scripting

Advanced Docker knowledge

Strong grounding in software engineering principles

Excellent communication skills

Experience mentoring or line‑managing technical team members

Eligible for UK security clearance

Job description

Senior Software Engineer
This fast-growing consultancy is pushing the boundaries of AI and data science, helping clients turn complex challenges into scalable, production-ready solutions. They’re now hiring a Senior Software Engineer who can blend deep technical expertise with a practical, delivery-focused mindset.

Role Overview

Location: London (hybrid)
Package: Competitive salary + bonus + benefits
Industry: AI, Data Science & Technology Consulting

What You’ll Be Doing

• Leading the end-to-end design and build of advanced AI and data-led software solutions.
• Developing scalable data pipelines and backend services that support complex modelling work.
• Setting standards for clean, efficient engineering across Python, SQL and cloud environments.
• Training, tuning and deploying machine learning models into production.
• Creating processes for robust data extraction, transformation and management.
• Integrating new solutions with existing systems and ensuring smooth deployment.
• Producing clear technical documentation and presenting findings to clients.
• Staying current with emerging technologies and bringing fresh ideas into the team.
• Contributing to proposals and shaping new project opportunities.
• Mentoring junior engineers and driving best practice across the engineering team.

Main Skills Needed

• Strong track record delivering complex software projects end-to-end.
• Deep expertise in at least one programming language and strong Python/SQL capability.
• Hands‑on experience building data pipelines, APIs and backend services.
• Solid understanding of cloud platforms (AWS/Azure) and Linux scripting.
• Advanced Docker knowledge, including storage, volumes and permissions.
• Strong grounding in software engineering principles, version control and CI/CD.
• Ability to review and improve others’ code with a collaborative approach.
• Excellent communication skills and confidence presenting technical work.
• Experience mentoring or line‑managing technical team members.
• Eligible for UK security clearance (British citizenship and UK residency for 5+ years).

What’s in It for You

• A genuinely entrepreneurial environment with autonomy and variety.
• Projects spanning multiple industries, technologies and data challenges.
• 26 days’ holiday + bank holidays + your birthday off.
• BUPA private healthcare and a £1,000 annual development budget.
• Performance‑based bonus and hybrid working from a modern Shoreditch office.
• Work from abroad for one month each year.
• Regular socials, snacks and a supportive, ambitious team.

Think it could be a fit? We’d love to hear from you.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

By applying you are confirming you are happy to be added to the Addition Solutions mailing list regarding future suitable positions. You can opt out of this at any time simply by contacting one of our consultants.