101 to 125 of 133 Principal Software Engineer Jobs

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 ...

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 ...

Overview Leading technology company in the compute platform space is hiring a Senior/Principal Software Engineer to join the web platform team in Cambridge. This is a hybrid role, and you must live within commutable distance of Cambridge. The role focuses on owning pivotal design, architecture … services (e.g., WebRTC, Server-Sent Events). Experience with monoliths, microservices, and architectures in between. Experience with Go or React. Involvement in open source software, whether as a maintainer or a contributor. #J-18808-Ljbffr ...

intelligence of AI to enable everyone to accelerate the results that matter. What Is The Role: We are on the lookout for a Principal Software Engineer I to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience. This team owns ...

some have prior security experience, many have been successful at Vanta without it. Vanta is transforming how companies build and scale trust. As a Principal Engineer, you'll define the golden path for frontend development across the organization—establishing patterns, standards, and systems that enable our product engineering … directly with the Head of Platform Engineering to drive operational excellence and technical strategy for frontend at Vanta. What you’ll do as a Principal Engineer at Vanta: Define and drive the technical strategy for frontend development across Vanta, establishing patterns and standards that scale Establish best practices ...

Brief Description The Principal, Cloud Software Engineer will be responsible for designing, developing, and maintaining modern healthcare-focused applications that support clinical, research, and enterprise RnD AAAI initiatives across the RnD organization. This role will lead the development of secure, scalable, AI-enabled web applications and APIs … within an AWS cloud environment, with a strong emphasis on product development, user experience, and delivery of intelligent software solutions. Essential Functions Design, develop, and maintain full stack web applications using Python, Java, C++ and modern frontend frameworks. Build scalable backend services and APIs using Python frameworks such ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Principal Software Developer in Test (SDET) Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Drive test automation innovation and engineering excellence in financial technology … Role As a Principal Software Developer in Test (SDET) at Capco, you'll lead the strategy, architecture, and implementation of robust test automation frameworks across financial services projects. You'll work closely with cross-functional teams to deliver quality-first engineering solutions using modern testing tools and practices. ...

with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide. Please visit more information. Brief Description: The Principal, Cloud Software Engineer will be responsible for designing, developing, and maintaining modern healthcare-focused applications that support clinical, research, and enterprise … enabled web applications and APIs within an AWS cloud environment, with a strong emphasis on product development, user experience, and delivery of intelligent software solutions. Essential Functions Design, develop, and maintain full stack web applications using Python, Java, C++ and modern frontend frameworks. Build scalable backend services and APIs ...

with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide. Please visit more information. Brief Description: The Principal, Cloud Software Engineer will be responsible for designing, developing, and maintaining modern healthcare-focused applications that support clinical, research, and enterprise … enabled web applications and APIs within an AWS cloud environment, with a strong emphasis on product development, user experience, and delivery of intelligent software solutions. Essential Functions Design, develop, and maintain full stack web applications using Python, Java, C++ and modern frontend frameworks. Build scalable backend services and APIs ...

Role Overview ICRV are seeking an exceptional Principal Engineer to own the architecture, design and hands‐on delivery of a desktop platform automating and streamlining trading desk workflows. This is a high‐visibility player‐coach role that may evolve to include formal people management. Role Responsibilities … demonstrated technical leadership through multi‐year delivery. Demonstrated success leading engineering teams through complex, multi‐year transformation programmes. Hands‐on experience across the full software development lifecycle. Practical experience using AI tools across the development lifecycle, including the review discipline for AI‐generated code. Excellent written and verbal communication ...

unit consists of a dedicated team that executes complex, multi-leg synthetic strategies on behalf of institutional clients.Role OverviewICRV are seeking an exceptional Principal Engineer to own the architecture, design and hands-on delivery of desktop platform automating and streamlining trading desk workflows. This is a high-visibility … systems, with demonstrated technical leadership through multi-year delivery.Demonstrated success leading engineering teams through complex, multi-year transformation programmes.Hands-on experience across the full software development lifecycle.Practical experience using AI tools across the development lifecycle, including the review discipline for AI-generated code.Excellent written and verbal communication; effective ...

ambitious plans to expand across Europe , employing the best minds and technology to let us do this. The impact you'll have: As a Principal Engineer in the Boost team, you'll be part of a group of principal engineers who champion technical excellence. The team acts … speak about our tech work to raise our engineering profile. Your skillset: Experience with AI-powered feature development and leveraging AI tooling for software delivery, with enthusiasm for transforming how we build and deliver software. Demonstrable history of working hands-on with engineering teams to solve complex technical challenges ...

ICAP Group Services Ltd seeks a Principal Engineer to own the architecture, design and hands-on delivery of a desktop platform automating trading desk workflows. A high-visibility, player-coach role may evolve to include people management. You will mentor teams, shape the technical direction of a greenfield … project, and ensure hard latency budgets and robust, secure software across Windows desktop hosting web content. London-based, hybrid/onsite work expected. #J-18808-Ljbffr ...

Seeq creates cutting-edge data analytics software for industrial process data, serving sectors like pharmaceuticals, energy, and manufacturing. Our core product is a robust calculation engine capable of executing advanced math and machine learning algorithms on streaming time-series data. By leveraging generative AI, we enhance usability and accelerate … talented engineers is dedicated to building products that exceed customer expectations while nurturing a supportive, collaborative environment. What You Will Do As a Staff+ Software Engineer at Seeq, you will play a critical role in shaping the technical direction and architecture of our software platform. You will ...

Cesium in the UK is seeking an experienced embedded software engineer to design and implement software for aerospace-grade devices and systems. You will work across the full stack, from low-level drivers to user applications, targeting Linux-based boards and high-reliability microcontrollers. The role requires … 9+ years in software development, strong C/C++, real-time OS/Linux experience, ARM expertise, and excellent communication. #J-18808-Ljbffr ...

exciting opportunity has arisen for a Principal Electronics & Embedded Software Engineer to join a team developing innovative medical and technology products, taking ideas from concept through to manufacture for some of the world's leading companies. The business has expanded its global capability while maintaining a reputation ...

communications and collection services. Set technical direction and engineering standards across teams, promoting modern cloud‐native and AI‐augmented engineering practices. Mentor and support Software Development Engineers and Forward Deployed Engineers, building capability and fostering a culture of continuous improvement. Support DevSecOps excellence through CI/CD pipelines, Infrastructure … driving good customer outcomes across all aspects of services that have potential to impact our customers. What we are looking for Extensive experience in software engineering, including experience operating at Principal Engineer or senior technical guidance level. Expert knowledge of .NET, React, SQL, microservices architecture, and cloud ...

space and missile defense missions. This position is an onsite role in Aurora, CO What You Will Do Design, develop, test, deliver, and maintain software for satellite ground systems. Work with a team of engineers, architects, and leaders in an Agile environment. What You Will Learn A breadth … advanced software technologies and techniques including multi-tiered architectures, AWS web services, and microservice software design. Modern DevSecOps and Continuous Integration/Continuous Delivery techniques. Software lifecycle practices for defense projects. Satellite ground system technologies. Qualifications You Must Have A Bachelor's degree in Science, Technology, Engineering ...

seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.In this position, you will be responsible for low-level and high-level software in Cesium’s products through all phases of the development process. Key projects will include Linux-based single-board computers and high-reliability microcontroller … systems. Cesium’s goal is to create an out-of-the-box hardware and software experience which enhances our customers’ ability to rapidly integrate our products into their systems.As a Cesium software team member, you will be responsible for software designs from concept through production, including product ...

problems that create a safer, more secure world. This is your opportunity to join the Receiver/Exciter & Processing Architecture (REPA) Department as a Principal Embedded Software Engineer. The department's primary goal is to design, develop, and support land and sea-based radar systems. We are looking … unique engineer to enhance the sustainability of our current radar products. The ideal candidate will have experience in legacy radar hardware and software technologies, with an interest and ability to transition these products to current technologies while maintaining and troubleshooting and patching our deployed systems. What You Will ...

. Working arrangement Fully onsite: please only apply if you can work onsite in Maidenhead The role You'll provide technical leadership in a software engineering team (typically 5 to 20 engineers) delivering multiple concurrent R&D and production programmes. The focus is on embedded and/or application … software in secure environments, with end-to-end ownership across the software lifecycle (requirements through design, implementation, test, verification, deployment and support). You may also have line management responsibility (up to c. 5 engineers, depending on team structure). Key responsibilities Lead the architecture, design, development, documentation ...

About the Role We are looking for an experienced Lead Engineer (back-end) to lead the team building and scaling the infrastructure behind Scenario Builder, our electricity grid modelling platform. Scenario Builder is an in-browser platform that currently provides capacity expansion and dispatch modelling through an accessible … level of adaptability and willingness to approach challenges with creativity and curiosity is essential. Skills & Experience Essential 7+ years of experience in back-end software development, with strong proficiency in Python. Experience designing and building RESTful APIs and microservices architectures. Strong understanding of database technologies (PostgreSQL, Redis, Firestore), ORMs ...

group of JPMorgan Chase. AI Engineering tackles business critical priorities using innovative machine learning techniques and technologies with a focus on machine learning for Software, Cybersecurity and Technology Infrastructure. The team partners closely with all lines of business and engineering teams across the firm to execute long-term projects … deliver products to production. Builds and maintains data pipelines for analytics, model evaluation, and training (includes versioning, compliance and validation). Executes creative software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems Provides feedback ...

Date posted Jul. 28, 2026 Location Cambridge, United Kingdom Category Software EngineeringThe Central Technology Team within the company develops key technologies which will form the foundation of future products. You will join a multinational, multifaceted, collaborative and highly motivated Machine Learning Hardware Architecture team in Central Technology to help … architecture. These tools are used across the architecture group to demonstrate that proposed features are suitable for implementation and can be unlocked by the software teams. Responsibilities: Develop tools that expose proposed hardware features and evaluate the resulting performance. Work with hardware architects to define the software interfaces ...

continuous improvement. Own the design and architecture of scalable, secure, and resilient enterprise applications, ensuring alignment with business and technology strategies. Define and champion software engineering standards, architectural patterns, best practices, and reusable frameworks across the engineering community. Lead complex technology initiatives from concept through to deployment and support … Experience with Microsoft Azure services and cloud-based application development. Strong experience with relational databases and data management technologies, particularly SQL. Deep understanding of software architecture, system design, data structures, and algorithms. Experience of developing front-end applications Experience working with data warehouse and analytical platforms Proven technical experience ...