Join Tetra Tech's Cost Consultancy team and play a leading role in delivering high-value, technically complex developments with a strong focus on innovation. Purpose & Scope of the Role As a Senior Quantity Surveyor, you will be instrumental in delivering high-quality cost consultancy across major projects, many exceeding £200m in value. Working across sectors such as Education, Healthcare and Infrastructure, you will provide expert cost advice. Based in Belfast, you will contribute across the full project lifecycle, from early-stage planning through to successful completion, working alongside experienced professionals and senior leadership. Your Impact in this Position You will lead and support the commercial delivery of complex projects, ensuring robust cost control, risk management and value optimisation. By collaborating closely with clients, stakeholders and multidisciplinary teams, you will help shape practical, innovative solutions. You will also play a...

We are looking for a talented Senior Building Surveyor to join our growing Belfast team. This is an exciting opportunity to work on high-profile projects across the healthcare, education, public and private sectors, collaborating with multidisciplinary teams to deliver innovative, sustainable solutions from concept through to completion. Purpose & Scope of the Role As a Senior Building Surveyor, you will play a key role in delivering high-quality consultancy services across a diverse portfolio of projects throughout the UK and Ireland. Working closely with colleagues, clients and project partners, you will provide technical expertise, manage project delivery and contribute to the continued growth of our Building Surveying business. You will have the autonomy to lead your own projects while benefiting from the support of a collaborative and experienced team. Reporting to an Associate Director, you will help strengthen client relationships, contribute to business...

Senior Associate Director Protection & Control (P&C) Design Engineer - UK Grid Network Jacobs is playing a leading role in the global energy transition. As our UK and Continental Europe team continues to expand, we are seeking a Senior Associate Director Protection & Control Engineer to support a range of high-profile projects across our Power & Energy portfolio. This includes high voltage AIS and GIS Substations, transmission system assets, HVDC interconnectors, and energy storage systems. Key Responsibilities: Provide strategic leadership on FEED and detailed design workstreams for Protection & Control systems across transmission and renewable energy projects Lead interface design, protection schemes, control philosophies, and settings coordination Oversee technical assurance, quality control, and timely delivery of design packages and bids Support recruitment, onboarding, and development of engineering talent within the P&C discipline Monitor...

Graduate Waste Water Modeller (Belfast) Join the Jacobs Graduate Development Program (GDP) and help shape better environments, communities and societies. Bring your passion, creativity and ambition - and together, we'll create lasting change. What You'll Get Our two-year Graduate Development Program is designed to accelerate your growth as you begin your Jacobs career. Through blended learning, mentoring, progress reviews and networking, you'll build capability across four key areas: human skills, consulting skills, championing our strategy, and developing your personal passions. You'll tailor your learning journey to your interests, career goals and technical strengths - creating a graduate experience that's uniquely yours. Much of your development will come through real project work, supported by your manager and mentor to ensure you gain the experiences that matter most. The Graduate Development Program isn't just a steppingstone - it's a launchpad. You'll gain...

Purpose & Scope of the Role Tetra Tech is a leading global provider of consulting and engineering services. Our Groundwater & Geothermal Team forms part of a wider geo-environmental and mining business and delivers projects for public and private sector clients across the UK and Ireland. Our work spans the water, energy, infrastructure, defence, environmental management and property sectors. Due to continued growth, we are looking for an ambitious hydrogeologist with relevant experience to join the team. You will work across a varied portfolio of groundwater and geothermal projects, including groundwater resources, dewatering, contaminant hydrogeology, monitoring, borehole investigations, hydrogeological risk assessment and geothermal development. The appointment may be made at Consultant or Senior Hydrogeologist grade, depending on your experience. At Senior grade, we would expect you to demonstrate greater independence in managing defined work packages or...

Graduate Ecologist Location: Belfast Start Date: September 2027 Joining Tetra Tech as a graduate is more than starting a new job - you'll become part of our Next Gen Talent development programme, designed to support you as you build your career with us. Alongside hands-on experience and exposure to real projects, you'll benefit from a structured programme of regular learning, training and development opportunities, helping you grow your technical and professional skills as you progress. You'll be supported throughout your development by experienced colleagues, giving you the opportunity to learn, build your network and develop the skills and experience needed for a successful long-term career with Tetra Tech. Looking to turn your passion for ecology into a career where you can help shape places, projects and biodiversity outcomes? Join an award-winning ecology team and build your technical and consultancy skills from day one. Purpose & Scope of the...

Principal Protection & Control (P&C) Design Engineer - UK Grid Network Jacobs is playing a leading role in the global energy transition. As our UK and Continental Europe team continues to expand, we are seeking a Principal Protection & Control Engineer to support a range of high-profile projects across our Power & Energy portfolio. This includes high voltage AIS and GIS Substations, transmission system assets, HVDC interconnectors, and energy storage systems. Key Responsibilities: Lead FEED and detailed design workstreams for Protection & Control systems across transmission and renewable energy projects Develop and review interface designs, protection schemes, and control philosophies Ensure quality assurance and timely delivery of design packages and technical bids Undertake site visits and non-intrusive surveys as part of design or site support activities Review protection settings, relay coordination, and scheme logic Coordinate with back-office...

Job title: Graduate Civil Engineer Location: Belfast Start Date: September 2027 Joining Tetra Tech as a graduate is more than starting a new job - you'll become part of our Next Gen Talent development programme, designed to support you as you build your career with us. Alongside hands-on experience and exposure to real projects, you'll benefit from a structured programme of regular learning, training and development opportunities, helping you grow your technical and professional skills as you progress. You'll be supported throughout your development by experienced colleagues, giving you the opportunity to learn, build your network and develop the skills and experience needed for a successful long-term career with Tetra Tech. Ready to start your career on projects that shape the built environment? Join a leading consultancy where you'll gain hands-on experience, technical training and support from day one. Purpose & Scope of the Role Tetra Tech is a...

Job title: Graduate Water Engineer Location: Belfast Start Date: September 2027 Joining Tetra Tech as a graduate is more than starting a new job - you'll become part of our Next Gen Talent development programme, designed to support you as you build your career with us. Alongside hands-on experience and exposure to real projects, you'll benefit from a structured programme of regular learning, training and development opportunities, helping you grow your technical and professional skills as you progress. You'll be supported throughout your development by experienced colleagues, giving you the opportunity to learn, build your network and develop the skills and experience needed for a successful long-term career with Tetra Tech. Purpose & Scope of the Role Tetra Tech is a leading technical, engineering and environmental consultancy delivering data-driven solutions across water, environment, infrastructure, energy and international development. With over...

Senior Ecologist - Belfast Senior Ecologist - Ireland (Belfast) At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good. We have ecology teams based across the Ireland and would welcome applicants into our offices in Dublin, Cork. While Jacobs offers flexibility in how and where you work, regular office presence is important to guide, support and mentor our growing Irish ecology team. Your Impact As part of a collaborative and growing team, you'll contribute to the delivery of major high-profile projects across Infrastructure, Utilities, Local Authorities and more. From the East Coast Rail Infrastructure Protection Programme to large-scale coastal protection and underground cable schemes, your work will directly...