Principal Engineer (AWS & Java)

Company IconLondon Stock Exchange Group
Location IconNottingham

Overview In this role you will be the most senior hands-on technical expert for the Risk Screening platform, translating architectural intent into robust production systems. You’ll own non-functional characteristics like latency, scalabil...Read More>>.

Posted: September 30th, 2026
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Principal Engineer (Highways, Development & Infrastructure)

Company IconSYSTRA
Location IconGlasgow

Overview As Principal Engineer (Highways) you lead and deliver highway development projects from feasibility to detailed design, ensuring safety, quality and value. You will manage budgets, resources and schedules within the Highways team w...Read More>>.

Posted: September 30th, 2026
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Principal Platform Engineer

Company IconLinuxRecruit
Location IconLondon

Overview You will drive platform engineering initiatives for high-impact public sector programs. In this role you will lead teams, guide key stakeholders, and deliver production-grade DevOps in a renowned consultancy environment. You will o...Read More>>.

Posted: September 30th, 2026
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Senior/Principal Engineer - Bridges

Company IconWSP Group
Location IconEdinburgh

Overview As a Senior/Principal Engineer at WSP, you help shape civil and bridge projects from design to delivery. You mentor junior engineers and drive quality on time and within budget. You work on UK and international bridge design, maint...Read More>>.

Posted: September 30th, 2026
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Principal Engineer (Tech for good)

Company IconLinuxRecruit
Location IconLondon

Overview In this Principal Engineer role, you drive high-impact technical outcomes within a mission-driven healthcare space. You will lead planning, strategy, and execution to ensure products and services meet top standards, acting as a sen...Read More>>.

Posted: October 1st, 2026
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Principal DevOps Engineer

Company IconPalo Alto Networks
Location IconLondon

Overview In this role you will build and optimize the end-to-end software release lifecycle for CyberArk's Secure Workload Access solutions. You’ll architect a resilient, high-velocity delivery ecosystem across SDKs, Terraform providers,...Read More>>.

Posted: October 1st, 2026
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Principal Platform Engineer

Company IconQontigo
Location IconLondon

Overview As a Principal Platform Engineer, you will shape and evolve ISS STOXX's global cloud platforms across GCP and AWS to secure, scale, and simplify adoption for engineering teams. You will drive the AWS landing zone program in line wi...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, BCG Expand, London

Company IconThe Boston Consulting Group
Location IconLondon

Overview As Principal Engineer, you will design and implement scalable data infrastructure powering advanced analytics and data science. You’ll shape the strategy and execution of data products, collaborating with senior stakeholders acro...Read More>>.

Posted: October 1st, 2026
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Principal Platform Engineer

Company IconTrayport
Location IconLondon

Overview In this senior, hands-on role you will design, build, and operate the global platform infrastructure across cloud and on-prem environments, while acting as a technical mentor and design authority. You will lead AI-driven operations...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, AI Engineering 

Company IconWells Fargo
Location IconLondon

Overview As Principal Engineer, you will act as a senior technical authority for AI engineering, shaping architecture, standards, and delivery patterns for secure, governed agentic AI systems. You will lead enterprise-grade AI initiatives (...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, Analog Design (Power) Engineering

Company IconAnalog Devices
Location IconEdinburgh

Overview As a Principal Analog IC Design Engineer, you will lead high-performance power-management blocks for portable consumer PMICs. You join a multi-site analog/mixed-signal team and collaborate with system architects to define end-to-en...Read More>>.

Posted: October 1st, 2026
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Principal Engineer 2 (Tunnelling and Underground Space)

Company IconSYSTRA
Location IconLondon

Overview As Principal Engineer, you will lead the delivery of complex engineering projects in underground structures and tunnels, ensuring quality, budget, and schedule adherence. You’ll steer technical development, establish design stand...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, Bridges & Structures - UK Wide

Company IconJacobs
Location IconLondon

Overview In this role you will shape structural solutions for major UK transport and infrastructure projects, guiding technically robust analysis and design within a multidisciplinary team. You will influence safety, sustainability and whol...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, Mobile Platform & Backend Systems

Company IconAlphaSense
Location IconLondon

Overview As a Senior Backend Engineer in Mobile, you shape the backend systems powering AI-driven product experiences. You’ll influence cross-team architecture, deliver scalable services, and ensure secure, reliable operations for mobile...Read More>>.

Posted: October 1st, 2026
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Principal Engineer / Associate – Construction & Buildability Advisory

Company IconWSP Group
Location IconLeeds

Overview As a highways delivery expert in the Leeds Roads team, you will support technical delivery and design coordination to ensure practical, buildable designs. You will collaborate with design teams, clients and delivery partners to app...Read More>>.

Posted: October 1st, 2026
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Lead Software Engineering - C++

Company IconJP Morgan Chase
Location IconLondon

Overview As Ultra Low Latency C++ Lead Software Engineer in the Electronic Trading Technology team, you design and operate market gateway solutions with FPGA acceleration to power high-speed trading. You’ll drive the software lifecycle, f...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, Water Infrastructure

Company IconWSP Group
Location IconPerth

Overview In this Principal Engineer role, you lead technical delivery across large-scale water and wastewater projects in WA, shaping design standards and delivering innovative, future-ready solutions. You’ll mentor multi-disciplinary tea...Read More>>.

Posted: October 1st, 2026
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Principal Engineer (Intrinsic Safety) 

Company IconSGS
Location IconBuxton

Overview As Principal Engineer (Intrinsic Safety) at SGS, you lead and own ATEX, UKEx and IECEx certification activities within a fast-paced engineering team. You provide technical leadership, guidance to clients and internal teams, and dri...Read More>>.

Posted: October 1st, 2026
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Principal Engineer (Front-End)

Company IconHastings Direct
Location IconBexhill

Overview As Principal Engineer at Hastings Direct, you will lead engineering excellence within the Technology Engineering function, shaping standards and delivery across the CIO landscape. You’ll combine hands-on technical leadership with...Read More>>.

Posted: October 1st, 2026
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Principal Platform Engineer

Company IconLeonardo DRS
Location IconLondon

Overview In this role you will be the SME for Windows-based enterprise infra on a critical MOD site, driving design, deployment and ongoing support of high-security systems. You will work closely with cross-functional teams to resolve compl...Read More>>.

Posted: October 1st, 2026
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Principal Engineer - Wastewater Modeller

Company IconWSP Group
Location IconBirmingham

Overview In this role you drive delivery on urban drainage and wastewater projects within a leading global water team. You’ll supervise tasks, review deliverables and grow the team’s urban drainage modelling capability. You’ll support...Read More>>.

Posted: October 1st, 2026
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Lead Software Developer

Company IconOscar
Location IconNottinghamshire

Overview Lead Developer role combining hands-on coding with people leadership to design and build scalable applications. You will shape technical direction, uphold engineering standards, and mentor a growing team. Collaborating across cross...Read More>>.

Posted: October 1st, 2026
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Principal Engineer - Corporate Technology

Company IconThe Financial Times
Location IconLondon

Overview In this role, you will lead engineering across Corporate Technology, defining strategy for People, Finance and Procurement platforms and driving secure, scalable, and well-managed services. You will mentor engineering leads, set ow...Read More>>.

Posted: October 1st, 2026
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Senior Engineer/Principal Engineer - Civil

Company IconWSP Group
Location IconGuildford

Overview As a Senior/Principal Engineer at WSP, you will lead delivery of civil and bridge projects, ensuring quality on time and within budget. You will mentor junior team members while collaborating across rail and highways projects for m...Read More>>.

Posted: October 1st, 2026
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Principal Engineer 2 (Geotechnical)

Company IconSYSTRA
Location IconBirmingham

Overview In this Principal Engineer role, you will lead geotechnical and geo-environmental project delivery, ensuring quality and alignment with budgets and schedules. You’ll guide multidisciplinary teams and act as CRE, Project Engineer,...Read More>>.

Posted: October 1st, 2026
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Principal Engineer Overhead Lines (OHL)

Company IconJacobs
Location IconLondon

Overview As Principal Engineer - OHL at Jacobs, you will lead high-voltage overhead line design across UK projects, driving technical delivery for 132kV–400kV systems. You’ll work within the Power & Energy team to shape transmission des...Read More>>.

Posted: October 1st, 2026
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Principal Engineer - Fire Engineering - Rail and Road

Company IconWSP Group
Location Icon

Overview As a Principal Fire Engineer, you will lead fire safety design on major rail and road infrastructure projects, balancing innovative architecture with safety requirements. You will coordinate with Facades, Acoustics and Structures,...Read More>>.

Posted: October 1st, 2026
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Highways Principal Engineer (UK Wide)

Company IconJacobs
Location IconBristol

Overview In this role you drive the design and delivery of major transport projects, shaping safe, efficient road networks at scale. You will lead cross-functional teams, mentor engineers, and influence technical decisions to deliver high-i...Read More>>.

Posted: October 1st, 2026
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Principal Engineer – Highway Design

Company IconLiverpool City Council
Location IconLiverpool

Overview As Principal Engineer – Highway Design at Liverpool City Council, you will lead the development, design and delivery of highway projects across the city. You will provide technical leadership, project management and ensure design...Read More>>.

Posted: October 1st, 2026
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Rail Telecoms - Principal Engineer

Company IconAECOM
Location IconGlasgow

Overview As a Principal Rail Telecommunications Engineer, lead the design, assurance, and delivery of telecoms systems for major rail projects. You’ll guide multidisciplinary teams, ensure safety and standards compliance, and manage inter...Read More>>.

Posted: October 1st, 2026
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Principal Engineer - Water Design and Build

Company IconJacobs
Location IconExeter

Overview In this role you will lead water and wastewater detailed design and Design & Build delivery, shaping major UK frameworks. You’ll guide multidisciplinary teams, set technical direction, and mentor future leaders. You will champion...Read More>>.

Posted: October 1st, 2026
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Principal Engineer – Process & Systems

Company IconMcLaren Group
Location IconWoking

Overview In this role you will lead the definition and delivery of manufacturing electrical processes, diagnostic systems, software deployment, and vehicle commissioning across programmes. You own the technical delivery from requirements th...Read More>>.

Posted: October 1st, 2026
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Senior / Principal Engineer - Liveable Places

Company IconWSP Group
Location IconNewcastle upon Tyne

Overview As a Senior/Principal Engineer in the Liveable Places team, you will lead the delivery of sustainable transport and public realm schemes from concept through to on-site implementation. You will manage programmes, budgets and risk,...Read More>>.

Posted: October 1st, 2026
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Lead Software Developer, Costar Group - London

Company IconMatterport
Location IconLondon

Overview In this role you will shape and deliver robust, scalable software for the real estate domain, working to understand business drivers and translate them into technical solutions. You will join cross-functional teams to design, imple...Read More>>.

Posted: October 1st, 2026
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Principal Engineer - Tunnelling & Underground Structures

Company IconAECOM
Location IconBirmingham

Overview As a Principal Tunnelling Engineer, you will lead design elements of major tunnelling projects and mentor junior engineers. You will liaise with clients and the wider design team to shape development, while being guided by a Techni...Read More>>.

Posted: October 1st, 2026
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Principal Engineer (Cloud) - AWS

Company IconQinetiQ
Location IconBristol

Overview Join QinetiQ, a defence technology leader, to shape cloud foundations for critical systems. In this role you will lead the cloud strategy, architect multi-region AWS environments, and advise engineering leadership. You will mentor...Read More>>.

Posted: October 1st, 2026
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Bridge and Civil Structures Principal Engineer

Company IconArup
Location IconLeeds

Overview In this role you will lead technical delivery within Arup's Bridges and Civil Structures team, guiding projects from feasibility through to asset management. You will work in a multidisciplinary environment to deliver high-quality...Read More>>.

Posted: October 1st, 2026
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Principal Engineer, Design Verification

Company IconAnalog Devices
Location IconNewbury

Overview In this role, you will lead verification activities for mixed-signal ICs within the CSS domain at ADI. You’ll work across multiple business units to shape verification strategies, develop advanced testbenches, and drive issue res...Read More>>.

Posted: October 1st, 2026
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Principal Engineer (Systems Safety)

Company IconSYSTRA
Location IconLondon

Overview In this role you will lead system safety and interoperability efforts for the Old Oak Common Station project, ensuring regulatory compliance and robust assurance across design, construction, and commissioning. You will coordinate w...Read More>>.

Posted: October 1st, 2026
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Senior Engineer/Principal Engineer - Bridges

Company IconWSP Group
Location IconNewcastle upon Tyne

Overview As a Senior/Principal Engineer at WSP you will drive delivery of civil and bridge projects, ensuring quality on time and budget while mentoring junior staff. You will design bridges in the UK and overseas and oversee management, in...Read More>>.

Posted: October 1st, 2026
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Principal Infrastructure Engineer

Company IconStrata Consulting
Location IconCambridgeshire

Overview In this role you will lead civil infrastructure design for UK projects, coordinating research, site surveys, and bid documentation. You will guide and mentor project staff, manage cross-functional interfaces, and help secure new bu...Read More>>.

Posted: October 1st, 2026
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Principal Engineer (Gen AI and MACH Architecture)

Company IconAkqa
Location IconLondon

Overview In this Principal Engineer (Tech Lead) role, you will shape and ship enterprise-grade systems within AKQA's London Tech team, balancing hands-on delivery with technical leadership. You’ll own architecture decisions for MACH-based...Read More>>.

Posted: October 1st, 2026
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Principal Engineer 1 (Systems)

Company IconSYSTRA
Location IconLondon

Overview In this Principal Engineer role, you will lead design delivery for allocated engineering work, ensuring on-time, on-budget outcomes aligned with client specifications. You’ll develop feasibility studies, design concepts, and tech...Read More>>.

Posted: October 1st, 2026
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Principal Engineer- Flood Risk & Hydraulic Modelling

Company IconArup
Location IconNottingham

Overview In this role, you will lead hydraulic modelling initiatives to support flood risk assessment and urban drainage design for clients across the public, private, and international sectors. You will work in a cross-site Modelling team...Read More>>.

Posted: October 1st, 2026
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Principal Engineer - MV/HV Cable Design

Company IconTechnipFMC
Location IconNewcastle upon Tyne

Overview In this role you will act as the technical authority for MV/HV submarine cable design within the R&D team, leading development from concept to delivery. You will establish and apply design rules, standards, and documentation, while...Read More>>.

Posted: October 1st, 2026
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CAD / BIM Principal Engineer

Company IconAECOM
Location IconManchester

Overview As BIM/CAD Specialist in the Building Engineering Division, you will design and support BMS-related CAD work to enhance mechanical and electrical design. You’ll work within a multidisciplinary team on varied project types, transl...Read More>>.

Posted: October 1st, 2026
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Technical Lead ( Senior Principal Engineer)

Company IconAssystem
Location IconDerby

Overview As a Technical Lead in Assystem's Defence team, you will steer technically challenging projects and mentor engineering delivery teams. You’ll define technical direction, ensure quality and regulatory compliance, and maintain stro...Read More>>.

Posted: October 1st, 2026
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Lead Software Developer

Company IconArch Capital Group
Location IconLondon

Overview In this role you will provide technical guidance and hands-on leadership in designing and developing software with C#. You will ensure coding, testing, and maintenance best practices while staying current with C# developments. You...Read More>>.

Posted: October 1st, 2026
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Associate Principal Engineer - Motors Verification

Company IconDyson
Location IconMalmesbury

Overview In this role you lead the design, development and ongoing improvement of automated test systems for motor R&D at Dyson. You will act as a technical expert in automation, instrumentation and verification software, mentoring engineer...Read More>>.

Posted: October 2nd, 2026
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Senior Software Engineer

Company IconVirtusa
Location IconLondon

Overview In this role you will combine deep hands-on engineering with architectural leadership to build end-to-end fintech crime platforms. You’ll influence cross-functional teams across fraud ops, analytics and compliance to advance dete...Read More>>.

Posted: October 3rd, 2026
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