Principal Software Engineer jobs in Farringdon

You will act as a technical authority, mentoring senior and junior engineers, liaising with clients, and setting standards for best practice across the team. Key Responsibilities: Lead and oversee all aspects of electrical design for building services projects. Act as technical authority, providing guidance on complex and high-value projects.

C++ Software Engineering Manager A brand new and exciting opportunity has arisen for a C++ Software Engineering Manager with extensive knowledge of C++ to join a market leading financial services company based from their Old Street, London office. Please note you will be expected to go to the office 4 days per week. The C++ Software Engineering Manager will take lead and mentor a team of 5...

You will play a critical role in building and evolving systems within a regulated payments / financial services environment, balancing engineering excellence and platform resilience. Key Responsibilities: Engineering Leadership & Strategy Own the software engineering strategy, aligned with business, product and regulatory objectives.

Full Stack Software Engineer | London | £80,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £80,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django - ideally a blend of 2) Frontend: React, TypeScript Cloud Systems: GCP or AWS Are you a software engineer who enjoys shipping real products, solving tangible customer problems, and seeing your...

You will own the lifecycle of services that handle identity verification, risk assessment, and onboarding for a global partner base.

C++ Engineer - Hybrid Role - London - £(phone number removed) Mploy Group are looking for the best of the best Software Engineers, who are well versed from a mathematical standpoint who have worked with computational geometry in mind. If this is you, keep reading. Essential experience * C++ (C++11 or newer) * Typescript, Angular, or React * Strong Mathematical Background or commerical...

Lead Software Engineer Stealth AI Fintech Startup | London | Hybrid (3 days on-site) We’re hiring on behalf of an innovative Fintech startup that is building an AI-driven platform that’s rethinking how investors analyse, access, and manage alternative assets (e.g. private equity, private credit and other private markets). They've built there MVP, raised funding from experienced fintech founders...

Principal Engineer - Active NPPV3, Active SC, 4GL Up to £640 per day (Inside IR35) London / Remote 12 Months My client is an instantly recognisable consultancy who require a Principal Engineer with Active NPPV3 and Active Security Clearance (SC), to help lead a business critical project for an end client. Key Requirements: Proven experience as a Principal Engineer Active NPPV3 and Active...

Senior Software Engineer - .NET Core, Blazor, SQL Server Location: Remote (UK-based) Salary: £50,000 - £60,000 (depending on experience) Benefits: Company pension scheme, 25 days holiday + bank holidays Applause IT are recruiting for a Senior Software Engineer on behalf of a highly impactful, tech-driven not-for-profit organisation that's tackling one of the world's most pressing health...

Software Engineer - C++ Title: Software Engineer - C++ Company: Elite Software House Location: Remote (London office) Salary: £80,000 - £115,000 Skills: C++, Algorithms, Boost Overview: Are you someone that thinks that writing slick, classy C++ code can and should be an art? Would you like to be part of an internationally recognised team of C++ experts led by the brightest C++ minds in the...

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them...

I'm looking for a Contract Java Software Engineer to join my client in their FinTech Business Unit. 6 month | Inside IR35 | Hybrid (1x week London) | £550 per day What you'll do: Develop scalable, high-performance systems and microservices Solve complex technical challenges and advocate best practices Support compliance processes with advanced tooling and analyticsRequirements: - Java + least...

Software Engineering Lead (Banking) Central London (Hybrid) Permanent My FS Client requires an agile and versatile specialist and team manager with extensive hands-on expertise in .Net/C# along with managing a hybrid tech stack involving applications in Microsoft SQL Server, Azure, etc. Business Area The role requires an experienced people manager, and an individual that is comfortable to work...

You will work across a diverse portfolio of client assignments, delivering technical solutions that address a wide spectrum of data-related challenges and enabling organisations to make informed, data-driven decisions. In this position, you'll design and implement advanced data systems and pipelines that meet clients' needs with scalability and reliability in mind.

You will work closely with the Architect to translate the vision into a coherent set of analyses and insights that drive delivery.

You must be UK based for this position

You will help bring together multiple streams of operational, product, and customer data that currently sit across separate environments.

You will be working for a leading design and architectural company that is ever-growing and currently working on some of the largest projects in the UK, exclusively for this company.

You will receive a wide range of company benefits as well as hybrid working with flexibility.

You will be a significant hire spearheading much of their 2025 development. Much of the team will be built around you, and significant hires have already been made.

You will develop, optimise and maintain their GPU driver stack, focusing on the performance and efficiency of graphics and compute workloads on cutting-edge GPU architectures.

You will gain experience which will enable your career to take a leap forward.

You will deliver high-quality production code and design control system architectures for real time environments that support robotic movement, manipulation, and teleoperation.

You will be rewarded with an excellent package that includes:

Software Engineer Stealth AI Startup | Seed Stage | On-site We’re hiring for an early-stage but fast-growing AI startup building a cloud-native analytics platform that turns large volumes of LLM output into structured, queryable intelligence for businesses and brands. Their stack is fully on AWS, heavily event-driven, and designed for scale. They work with modern serverless and...

IT Principal Consultant - Active SC, HPC, Beowulf Up to £610 (Inside IR35) 5 days onsite 20 day contract We are seeking an experienced HPC Expert to lead containerisation initiatives for high-performance computing environments. The role involves advising on best practices, optimizing HPC workflows, and engaging with customers through workshops and technical interviews. Key...