Principal Engineer
Principal Engineer
Who we are
Momentum is an integrated consultancy, based in London and with offices in Houston and Montréal. Our team brings together leading engineers, planners and modellers in a collaborative, supportive environment. We back each other, share knowledge and constantly look for better ways to do great work. Our culture is fun-loving, diverse, and inclusive.
We’re guided by our strong ethical code and ESG principles. Recent recognition includes: Great Place to Work accreditation; listing in the Top 100 Great Places to Work for Women (2024); NCE SME Best Place to Work (shortlisted, 2023); CIHT Employer of the Year (2022); and CIHT Team of the Year (2021).
We are an Equal Opportunities employer and a Level 1 Disability Confident organisation, fostering an environment free from discrimination. If you meet the essential criteria, we’ll guarantee you an interview. If you need reasonable adjustments during the process, tell us and we’ll make it happen.
Curious about life at Momentum? Explore our Momentum News & Views.
What we do
Momentum is a transport and movement engineering consultancy. We design how people and vehicles move through complex places – from major stations and interchanges to dense urban developments and public realm schemes.
We’re involved in some of the most exciting and challenging infrastructure and development projects in cities across the world – from cycle networks to sport stadiums; large commercial skyscrapers to HS2; from removing traffic gyratories to leading the debate on smart servicing, autonomous vehicles and e-mobility. We redesign streets, public spaces, and buildings to reflect the future of transport as one of the UK’s most highly regarded transport engineering consultancies.
We apply engineering judgement and technical detail – geometry, design standards, and constructability – to develop practical, buildable solutions. Our engineers work closely with architects, planners and clients from concept design through to detailed design and construction, ensuring every transport solution is technically sound, context-sensitive and deliverable.
We’re at the forefront of fighting climate change and are proud of the way we work with our clients every day to push sustainability boundaries and challenge ourselves to help create safe, liveable and equitable places and neighbourhoods.
Our opportunity
Momentum’s civil and highway engineering offer is growing fast, and we’re looking for a forward-thinking Principal Engineer to play a key role in its evolution. You’ll bring strong technical, design and leadership skills to help deliver complex transport and movement projects across the UK and internationally. Working alongside our structural engineering sister company, Eidos, you’ll help expand our collective capability, supporting a diverse workload that spans infrastructure, development and public realm design. You’ll lead the technical delivery of multidisciplinary projects – applying engineering judgement, innovation and commercial awareness to develop practical, buildable solutions. As a senior engineer, you’ll set and maintain standards of quality, rigour and creativity across our outputs. You’ll guide and mentor engineers, manage project budgets and programmes, and play an active role in developing new business opportunities and client relationships. This is a role with real influence – shaping how we design, collaborate and deliver the next generation of transport infrastructure.
Perks and Benefits
We offer a competitive salary and a comprehensive package of benefits that reflect how we value our people.
- 25 days annual leave, with flexibility to purchase additional days, plus birthday leave, early finishes before bank holidays and half day finishes on Fridays during August.
- Annual personal and company performance bonus.
- Private medical insurance through Vitality and free wellbeing resources.
- We will pay 6% into your private Scottish Widows pension regardless of your personal contributions beyond the minimum 2%.
- Paid subscriptions to two professional institutions.
- Access to both internal and external professional training and development.
- Internal mentoring programmes.
- In-house massages.
- Friendly competition through our sports teams.
- Fortnightly knowledge-sharing sessions (free lunch included!).
- Regular company social events.
Who you are
You will be a self-starter with a passion for the urban built environment, transport and highway infrastructure. You’ll enjoy solving complex engineering problems and working collaboratively in a proactive and hard-working team.
You will be able to demonstrate (or show a keen desire to develop) the following:
- A Civil Engineering degree or relevant alternative technical discipline.
- Chartered or Incorporated Engineer, or close to achieving that status.
- Ability to review designs in Civils3D, AutoCAD, and the AutoDesk ecosystem.
- Expertise in transport and highway infrastructure design, including S278, urban streets, and public realm schemes.
- Expertise in surface and sub-surface drainage design, with experience of relevant software including InfoDrainage and/or MicroDrainage
- Sound understanding of design standards, technical assurance, and constructability.
- Proven ability to lead design reviews, coordinate multidisciplinary inputs and maintain quality under pressure.
- Excellent analytical and problem-solving skills, with sound engineering judgement and attention to detail.
- Confidence in engaging with clients, architects, planners and contractors – able to explain complex engineering clearly and persuasively.
- Experience mentoring and developing engineers, fostering technical capability and professional growth within a team.
- Commercial awareness – comfortable managing budgets, scope and risk to deliver profitable, highquality outcomes.
- A proactive, inquisitive mindset – keen to innovate, test ideas and help shape the future of transport and movement design.
It would be an advantage if you could also bring:
- Experience in construction logistics and traffic management design.
- Ability to review designs in OpenRoads, MicroStation and the Bentley ecosystem.
- Experience working in BIM environments and managing digital design workflows.
- On site experience, knowledge of scheme implementation, inspections, and resident engineer duties.
- Expertise in floor risk assessment and mitigation design
- Awareness of emerging tools and technologies that can improve design quality, collaboration and delivery efficiency
A view from our clients
