principal .net engineer jobs in St James's

Seeking an experienced Principal Engineer to design and advise on transport systems for tunnel projects, requiring technical knowledge in mechanical, electrical, and safety systems.

Senior/Principal Engineer to develop, optimize, and support software. Requires C/C++ skills, 3D graphics, and communication skills.

Electrical Engineer role focused on Overhead Line (OHL) design, supporting projects in the energy and power market, with a hybrid working model.

You will provide expert investigation, solution design, and oversight of repair strategies, while mentoring engineers and influencing continuous improvement across the claims process. Key Responsibilities Technical Expertise & InvestigationLead assessment and resolution of complex subsidence, heave, landslip and structural movement cases.

You will develop innovative strategies for high-hazard environments, manage and mentor a team of engineers, and act as a trusted advisor to major clients across multiple sectors.

You will also play a key role in client engagement, regulatory liaison, and supporting business development initiatives.

You will foster a collaborative and inclusive culture, champion innovation, and ensure the successful delivery of industry-leading solutions.

Senior / Principal Civil Engineer - ConsultancyCentral London (office-based, with site visits)Permanent Role | Leading UK Civil & Structural ConsultancyCompetitive Salary + Excellent BenefitsI'm working with a well-established, multi-office civil and structural engineering consultancy that has built a strong reputation for delivering complex and high-profile development projects across the UK....

You will take individual responsibility for a range of project types, manage them independently and be the clients main point of contact.

You will lead independently and proactively on technical aspects including preparing designs, specification, technical approval submissions, site supervision and will be fully conversant with industry design standards.

A highly skilled Principal Electronics Engineer Job has come up to join my client who is a global leader in developing embedded computing, based in Northamptonshire.With a high investment in research and development, several on-going projects and substantial growth, my client are looking to recruit a Principal Electronics Engineer to join their R&D department.This Principal Electronics Engineer...

You will play a pivotal role in shaping the civil functions throughout the lifecycle of various projects. From concept design to commissioning, you will ensure that all civil aspects are meticulously considered and integrated. The role of a Principal Civil Engineer includes:Lead and oversee the design, planning, and execution of civil engineering on projects.

You will contribute to the delivery of concept studies and strategies with hands on design, leading to planning applications or construction drawing issue.

You will have proven experience and an interest in helping the junior members of the team in producing designs.

You will have strong post graduate experience in a civil engineering working environment.

Principal Electrical Engineer – Semiconductor Equipment (Hybrid, Clevedon Area)Up to £82,000 + 15% annual bonus + excellent benefitsAre you an experienced Electrical Engineer ready to take on a high-impact technical leadership role in advanced manufacturing technology? We're partnering with a global engineering leader in the semiconductor and vacuum technology sector to find a Principal...

You will be working in a part of Telent that is dedicated to maintaining the UK wide rail network. Our customers include Transport for London, Network Rail and a host of Train Operating Companies. Reporting to the Lead System Engineer the senior engineer will be responsible for delivering project upgrade works across Transport for London and Network rail infrastructure.

Company DescriptionStargate Labs - AI agents for X verticalRole DescriptionI'm looking for a cracked technical cofounder to partner with. 50% equity on offer. No salary. Have validated an idea by securing a $10,000 contract. Product is 80% built.QualificationsSoftware engineering backgroundCan ship fast

This client is one of the market leaders in cutting-edge optoelectronic devices for the next generation of optical communications networks.They are looking for an experienced engineer to join their team of experts, providing a key influence in the development and research of III-V optical chip components. This team focuses on the design, development, and mass production of advanced and novel...

Building Biodiversity BetterStep out of the ordinary and shape the future of ecology.At Ecology by Design, we're redefining what it means to be an ecological consultant - blending scientific rigour with creativity, innovation, and a genuine commitment to restoring nature. Here, your expertise isn't boxed in by bureaucracy or lost in endless process. It drives real-world change.If you're a Senior...

You will also mentor colleagues, manage projects, and contribute to work winning and client engagement. About the Client:Our client is a leading consultancy known for delivering major infrastructure and environmental projects that make a real impact.

Founding Account Executive Location: London (hybrid – 1 day in our Mayfair boardroom, the rest wherever you work best) About DealsPlus We’re a fast-scaling, B2B SaaS company reshaping how private equity firms manage their portfolio data. Our platform helps top-tier PE firms digitise, manage and understand their cap tables and investment structures. Backed by a strong seed round and trusted by 35+...

You will work independently and proactively on technical aspects from a projects inception, determining client briefs, to the delivery and close out of projects in accordance with best practice.

You will instruct, supervise and mentor junior staff in the design and management of schemes and work with clients to ensure delivery of projects to time and cost, and to help manage change.

You will work as part of a national network of specialists, collaborating with hydrologists, environmental scientists, and engineers to deliver complex and integrated water quality, catchment, and river modelling projects.