Belfast, Northern Ireland, United Kingdom · On-site
$50k–$70k/yr
Senior Mechanical Engineer Lead Projects, Influence Outcomes, Set the Standard. This is where you move beyond delivery into real influence. You'll lead projects, shape decisions, and play a key role in developing both te…
Skills: Mechanical Design, Project Management, Technical Review, Client Relationship Management, Multidisciplinary Coordination
Belfast, Northern Ireland, United Kingdom • On-site
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Lead mechanical design across major projects from concept to completion while managing timelines and technical output. Act as a key client advisor and mentor junior engineers to drive high-quality project outcomes.
Requires a degree in Mechanical or Building Services Engineering and over 6 years of consultancy experience. Strong technical expertise in mechanical systems and proven leadership skills are essential, with Chartership being desirable.
Senior Mechanical Engineer
Lead Projects, Influence Outcomes, Set the Standard.
This is where you move beyond delivery into real influence. You'll lead projects, shape decisions, and play a key role in developing both teams and client relationships.
The Role
This role is focused on leading mechanical design across major projects, managing delivery from concept through completion, and helping shape the technical direction of work. You'll work closely with clients, consultants, and internal teams to deliver high-quality outcomes while supporting the growth of junior engineers.
What You'll Do
What You'll Bring
What You'll Get
This isn't built around perks. It's built around how high-performing engineers actually want to work. Real ownership, real progression,
and a culture that trusts you to deliver.
The Essentials
Career Progression
Health and Wellbeing
Social and Community
Why IN2?
Across every role, electrical, mechanical, or BIM, the IN2 difference is the same: you're expected to think, lead, and shape outcomes, not just execute instructions. Here's what sets us apart.
Ownership from Day One
Whether you're an Engineer or a Senior, you'll have real accountability and decision-making authority. No waiting for permission. No layers of sign-off slowing you down.
Progression Based on Ability
Faster progression based on what you deliver, not how long you've been in the seat. A clear pathway from Engineer to Senior, Associate, and beyond.
Innovation Time
Dedicated time to develop new ideas, explore emerging technologies, and contribute to sustainability strategies: built into how we work, not bolted on.
High-Performance, Low-Ego Culture
A team that challenges each other, supports each other, and wins together. No hierarchy for hierarchy's sake. Just talented people doing exceptional work.
Complex, High-Profile Projects
Exposure to design-led, high-impact developments that push the boundaries of what building services engineering can achieve.
Global Reach
Work across offices in Dublin, London, Berlin, Belfast, Athlone, and Madrid- a genuinely international practice with a collaborative, connected culture.
Ready to own the outcome? Join a team that expects more and gives more in return.
M&E Design & Sustainability Consultancy Delivering world-class, low-energy building projects from design to handover.
Engineering Firm of the Year 2025 - Engineering Excellence Awards 2025 Great Place To Work 2025-2026 accredited IN2 is a modern building services and environmental engineering consultancy dedicated to developing innovative and sustainable engineering solutions for a diverse client base in the various construction sectors including, health, education, commercial, sport and leisure. Formed in 2002, with offices in Dublin, London, Belfast, Athlone and Berlin, the company has completed numerous successful projects throughout Europe. With a highly experienced Engineering staff, together with specialist in-house expertise in Passive Design, Sustainability, Dynamic Thermal Modelling, Airflow Simulation (CFD), Lighting Simulation and BIM, IN2 has the capabilities and experience to deliver low-energy projects from Conceptual Design, through to Building Handover and beyond. IN2 is committed to maximising the potential of its team, together with continual advancements in computer aided building modelling techniques. With every project, IN2 provides a progressive approach to energy efficiency, integrated building services and environmental engineering designs to suit the clients' requirements. As Engineering Consultants, IN2 believes that the quality of their design information is paramount to achieving success in all projects. IN2 work in accordance with our Quality Accreditation (ISO 9001:2015), as well as Environmental (ISO 14001:2015) and Health and Safety (OHSAS 18001:2007). Regular Health and Safety training with bespoke courses for M&E Engineering design is undertaken. Continual Professional Development (CPD) forms part of the core mission of the practice; our formal CPD accreditation with Engineers Ireland demonstrates our commitment to achieving excellence for our clients.
Offices: Unit E&F, Mount Pleasant Business Centre, Upper Mount Pleasant Avenue, Dublin, Co. Dublin D06 P5N8, IE · Unit 28 Waterside, 44-48 Wharf Road, London, N1 7UX, GB · 5-23 Hill Street, Belfast, Northern Ireland BT1 2LA, GB · Unit 11 Inish Carraig Business Centre, Golden Island, Athlone, N37 Y7D9, IE · Stresemannstraße 123, Berlin, BE 10963, DE
M&E Design & Sustainability Consultancy Delivering world-class, low-energy building projects from design to handover.
Engineering Firm of the Year 2025 - Engineering Excellence Awards 2025 Great Place To Work 2025-2026 accredited IN2 is a modern building services and environmental engineering consultancy dedicated to developing innovative and sustainable engineering solutions for a diverse client base in the various construction sectors including, health, education, commercial, sport and leisure. Formed in 2002, with offices in Dublin, London, Belfast, Athlone and Berlin, the company has completed numerous successful projects throughout Europe. With a highly experienced Engineering staff, together with specialist in-house expertise in Passive Design, Sustainability, Dynamic Thermal Modelling, Airflow Simulation (CFD), Lighting Simulation and BIM, IN2 has the capabilities and experience to deliver low-energy projects from Conceptual Design, through to Building Handover and beyond. IN2 is committed to maximising the potential of its team, together with continual advancements in computer aided building modelling techniques. With every project, IN2 provides a progressive approach to energy efficiency, integrated building services and environmental engineering designs to suit the clients' requirements. As Engineering Consultants, IN2 believes that the quality of their design information is paramount to achieving success in all projects. IN2 work in accordance with our Quality Accreditation (ISO 9001:2015), as well as Environmental (ISO 14001:2015) and Health and Safety (OHSAS 18001:2007). Regular Health and Safety training with bespoke courses for M&E Engineering design is undertaken. Continual Professional Development (CPD) forms part of the core mission of the practice; our formal CPD accreditation with Engineers Ireland demonstrates our commitment to achieving excellence for our clients.
Offices: Unit E&F, Mount Pleasant Business Centre, Upper Mount Pleasant Avenue, Dublin, Co. Dublin D06 P5N8, IE · Unit 28 Waterside, 44-48 Wharf Road, London, N1 7UX, GB · 5-23 Hill Street, Belfast, Northern Ireland BT1 2LA, GB · Unit 11 Inish Carraig Business Centre, Golden Island, Athlone, N37 Y7D9, IE · Stresemannstraße 123, Berlin, BE 10963, DE
