176 to 200 of 288 Principal Software Engineer Jobs

Principal Software Engineer: Tech Strategy & Delivery Leader

Location
Greater London, England, United Kingdom
Hippo Digital Limited is seeking a Principal Software Engineer to guide multiple squads and shape the technical direction of complex digital services. You will act as a strategic leader across engineering, delivery and data, driving best practices and high-quality, scalable solutions. You will oversee architecture ...

Principal Software Engineer

Location
Cambridge, England, United Kingdom
working with an innovative technology business that is looking for an experienced Principal Software Engineer . You’ll have the opportunity to influence technical strategy, solve complex engineering challenges and mentor other developers. Location: Cambridge (Hybrid) The role: Lead the architecture, design and development of high-performance … optimise system performance and reliability. Mentor and support mid and senior-level developers. Work within an Agile/Scrum development environment alongside wider software and engineering teams. Strong commercial experience with C# and .NET , Proven experience designing and developing scalable, distributed systems and microservices. Experience with front-end technologies ...

Principal Software Engineer – Containerized AI Agents (Remote)

Location
Greater London, England, United Kingdom
leading cloud technology provider in London is seeking a Principal Software Engineer to develop the future of containerized AI agents. This role involves defining technical strategy and leading architecture decisions while working on the open-source cagent project. Ideal candidates have over 10 years of software ...

Principal Software Engineer – AI-Driven FinTech Platform

Location
Greater London, England, United Kingdom
JPMorgan Chase is hiring a Principal Software Engineer within the International Consumer Bank to deliver secure, scalable, consumer-facing financial features. You will lead end-to-end delivery, architect AI-enabled workflows, and collaborate with product, design, and compliance to ensure regulatory alignment and reliability at scale. ...

Principal Software Engineer — UK Travel & Cloud Leadership

Location
Wythenshawe, England, United Kingdom
Accenture Manchester is seeking a Principal Software Engineer to lead engineering workstreams across client projects, shaping delivery with a strong emphasis on quality and tangible outcomes. You will grow teams, mentor engineers, and collaborate with stakeholders to align technical solutions with business goals. Travel to client sites ...

Principal Software Engineer – Hybrid, Clearable, Career Growth

Location
Manchester, England, United Kingdom
慨正橡扯 in the United Kingdom is seeking a Principal Software Engineer to join their team in Manchester or Gloucester. This full-time, permanent position offers a hybrid working pattern, focusing on both technical tasks and team leadership. The ideal candidate will have extensive experience in full-stack … development and cloud services. The role involves designing and building software, collaborating across teams, and contributing to project success. Opportunities for training and development will also be provided. #J-18808-Ljbffr ...

Principal Software Engineer - Simulation & Autonomy

Location
Portsmouth, England, United Kingdom
technology consultancy firm in Portsmouth is seeking a Principal Software Engineer to lead the design and development of applications across various sectors, including defence and health. The ideal candidate has over 15 years of experience with expertise in C/C++, C#, and Python, alongside strong stakeholder ...

Principal Software Engineer — AI-Driven FinTech Platform

Location
Greater London, England, United Kingdom
JPMorgan Chase is seeking a Principal Software Engineer to help transform digital banking for Chase UK. You will work in a distributed, diverse team focused on delivering scalable, secure, consumer-facing features with high availability and low latency. You will lead complex coding frameworks, apply enterprise ...

Principal Software Engineer – AI-Driven FinTech Platform

Location
Greater London, England, United Kingdom
JPMorgan Chase is seeking a Principal Software Engineer within the International Consumer Bank to deliver scalable, secure consumer-facing features with high availability and low latency. You will collaborate with Product, Design and Compliance teams to ship customer-centric solutions that meet regulatory standards while leveraging enterprise ...

Staff / Principal Software Engineer, AI Platform (up to £220k)

Location
Greater London, England, United Kingdom
commit to a process. The role AI agents need to learn. This lab builds the interactive, resettable digital environments where they do it: navigating software, completing tasks, learning from failure, and improving through trial and error. This isn't just research; it's about generating the experiential data that … work directly with frontier AI labs, growing rapidly with a team from leading tech companies and successful startups. This is a Staff or Principal Software Engineer role, offering genuine technical authority without disconnecting you from the code. You'll own major platform areas, from technical direction ...

Principal Software Engineer - Hybrid, Lead HighPerf Systems

Location
Waterbeach, England, United Kingdom
Sepura Limited is seeking a Principal Software Engineer to lead the architecture and performance of critical public safety systems. You will mentor teams, drive best practices, and shape the development lifecycle across C#/.NET platforms. The role emphasizes low-latency, highly available solutions, with a hybrid ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
been building the bank of the future from the ground up, offering you the chance to join us and make a significant impact.As a Principal Software Engineer at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in this initiative, dedicated to delivering … possess an interest in the financial sector and focus on addressing our customer needs. Job responsibilitiesCreates complex and scalable coding frameworks using appropriate software design frameworks.Develops secure and high-quality production code, and reviews and debugs code written by others.Architects and governs agentic AI-enabled engineering workflows (using enterprise ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Location
Greater London, England, United Kingdom
building the bank of the future from the ground up, offering you the chance to join us and make a significant impact. As a Principal Software Engineer at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in this initiative, dedicated to delivering … possess an interest in the financial sector and focus on addressing our customer needs. Job responsibilities Creates complex and scalable coding frameworks using appropriate software design frameworks. Develops secure and high-quality production code, and reviews and debug code written by others. Architects and governs agentic AI-enabled engineering ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Location
Greater London, England, United Kingdom
building the bank of the future from the ground up, offering you the chance to join us and make a significant impact. As a Principal Software Engineer at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in this initiative, dedicated to delivering … possess an interest in the financial sector and focus on addressing our customer needs. Job responsibilities Creates complex and scalable coding frameworks using appropriate software design frameworks. Develops secure and high-quality production code, and reviews and debugs code written by others. Architects and governs agentic AI-enabled engineering ...

Principal Software Engineer - AI-Driven, Secure & Scalable

Location
Scotland, United Kingdom
JPMorgan Chase & Co. in Scotland is seeking a Principal Software Engineer to join Strategic Business Services. You will provide expertise and engineering excellence within an agile team to enhance, build, and deliver trusted market-leading technology products in a secure, scalable way. You will collaborate across ...

Principal Software Engineer — Tech Lead & Impact

Location
Greater London, England, United Kingdom
leading technology firm in Greater London is seeking a Principal Software Engineer to design, develop, and maintain critical infrastructure. This role involves ownership of team deliverables, collaboration with external partners, and mentoring engineers. Candidates must have strong capabilities in backend and frontend development, design scalable systems ...

Lead Principal Software Engineer, Healthcare Integration

Location
Grimsby, England, United Kingdom
Northern Lincolnshire and Goole NHS Foundation Trust seeks a Principal Software Engineer to lead the Digital Services Directorate in architecting, developing, integrating, and supporting critical digital systems for the EPR rollout and wider strategy. You will mentor highly skilled developers and integration specialists, set technical strategy, champion ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
building the bank of the future from the ground up, offering you the chance to join us and make a significant impact. As a Principal Software Engineer at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in this initiative, dedicated to delivering … possess an interest in the financial sector and focus on addressing our customer needs. Job responsibilities Creates complex and scalable coding frameworks using appropriate software design frameworks. Develops secure and high-quality production code, and reviews and debugs code written by others. Architects and governs agentic AI-enabled engineering ...

Principal Software Engineer - Chase UK - Lending/Deposits/Rewards

Location
Westminster, West End, United Kingdom
building the bank of the future from the ground up, offering you the chance to join us and make a significant impact. As a Principal Software Engineer at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in this initiative, dedicated to delivering … possess an interest in the financial sector and focus on addressing our customer needs. Job responsibilities Creates complex and scalable coding frameworks using appropriate software design frameworks. Develops secure and high-quality production code, and reviews and debugs code written by others. Architects and governs agentic AI-enabled engineering ...

Principal Software Engineer - Data & AI Platform (Hybrid)

Location
Greater London, England, United Kingdom
Simple Machines is a leading boutique technology firm seeking a Principal Software Engineer to design and deliver complex, scalable systems across backend, APIs, frontend, data pipelines, and cloud infrastructure. You’ll work with internal teams and client stakeholders, owning outcomes end-to-end in a consultative engineering ...

Principal Software Engineer - Real-Time Energy Trading

Location
Greater London, England, United Kingdom
global AI-native consultancy is seeking a Principal Software Engineer to lead engagement delivery in the Energy & Commodities Trading sector. This hands-on role combines technical excellence and domain expertise, focusing on architecting scalable AI solutions that drive trading decisions. The successful candidate will work closely with ...

Principal Software Engineer - AI-Driven, Secure, Scalable

Location
Glasgow, Scotland, United Kingdom
JPMorgan Chase & Co. in the United Kingdom is seeking a Principal Software Engineer within Strategic Business Services to drive engineering excellence in an agile team shaping secure, scalable market-leading technology products. You will design complex frameworks, lead AI-enabled development practices, and advise senior leaders ...

Principal Software Engineer: Lead Tech Strategy & Scale

Location
Liverpool, England, United Kingdom
Very Group is seeking an experienced Senior/Principal Software Engineer to lead technical direction across squads. You’ll shape what we build and how, collaborating with Product Managers, Architects and Engineers to tackle scalable, cloud-native challenges and deliver impactful customer experiences at scale. Expect ownership ...

Principal Software Engineer: Tech Strategy Leader

Location
Manchester, England, United Kingdom
Hippo is a fast-growing digital consultancy delivering transformative digital solutions across public and private sectors in the UK. We seek a Principal Software Engineer to shape technical direction, lead multiple squads, and drive innovation across the engineering community. You will partner with stakeholders, oversee complex pipelines ...

Principal Software Engineer

Location
United Kingdom
products and systems scale, we need technical leaders who can solve difficult engineering problems and raise the engineering bar around them. The Principal Software Engineer owns technical direction and execution for major products and systems . This is a hands-on role - you will design systems, write … design, testing, security, observability and development practices. Leading technically critical initiatives and mentoring engineers across teams. What We're Looking For 7+ years of software engineering experience building and shipping production systems. Deep expertise in backend, frontend, distributed systems, APIs, databases or cloud infrastructure. Strong system design and architecture ...