Engineer Intern - SUMMER 2026

The Middlesex Corporation is a nationally recognized and award-winning leader in the heavy civil construction industry. Since 1972, the family business founded by Robert W. Pereira has developed an extensive client and project list through its consistent efforts to safely build America’s infrastructure. The Middlesex Corporation specializes in building and reconstructing highways, bridges, marine, rail, and transit facilities through its collaborative team approach and focus on core values. In addition, Middlesex Asphalt in Central Florida is one of the largest and most productive asphalt plants in the United States with Middlesex Paving earning an equally solid regional presence and reputation. Position Summary: The Engineer Intern assists in daily construction, coordination, and administrative tasks to support project operations. This includes managing submittals, tracking project data, and coordinating with vendors and subcontractors to ensure seamless project execution. Responsibilities: Comply with (and actively promote) all Safety policies and procedures, including reporting all accidents, incidents, and near-misses to ensure adherence to our Number One Core Value – Safety first, in everything we do. Provide support to the Project Manager, Project Engineer, and Superintendent as required. Receive, log, and file project correspondence and shop drawings. Record daily project work quantities in control documents. Assist with material deliveries and take the lead in coding materials, labor, and equipment. Coordinate with vendors and subcontractors regarding schedules, billing, and back charges. Draft routine correspondence as requested by the Project Manager. Review and code delivery slips and purchase orders. Support the Project Manager/Project Engineer with all aspects of project cost management. Qualifications: Currently pursuing a B.S. in Civil Engineering or a related construction field. Strong verbal and written communication skills. Proficiency in MS Office software. Self-motivated with the ability to complete tasks with minimal supervision. Necessary Attributes: Adaptability to various personalities and management styles. Dedication, hard work, and above-average organizational skills. Commitment to team success and a strong work ethic. We offer our full-time and eligible part time team members a comprehensive benefits package that’s among the best in our industry. Benefits include medical, dental and vision plans covering eligible team members and dependents, employee assistance programs, life insurance, disability, top-tier 401k with matching, tuition reimbursement, industry leading referral program, and generous paid time off.

Project Manager/Senior Project Manager-Healthcare Construction

About the Company Our client is a full-service General Contracting and Construction Management firm based in North Naples, FL , known for its commitment to quality, safety, and client satisfaction. With deep expertise in delivering complex healthcare facilities under AHCA guidelines, they have earned a trusted reputation across Southwest Florida’s healthcare construction landscape. Their team prides itself on a collaborative approach and a hands-on management style that consistently delivers projects on time, on budget, and to the highest standards. About the Position We are seeking a Project Manager or Senior Project Manager with proven experience managing healthcare construction projects under AHCA regulations . This is a key leadership role offering long-term growth with a well-established and respected regional firm. Depending on experience level, candidates will be considered for: Project Manager: 3 years of direct healthcare construction project management Senior Project Manager: 7 years of experience in managing complex healthcare projects, including ground-up and renovation work Key Project Types: Ground-up healthcare facilities (site-to-close) Surgical centers Renovations and additions to active healthcare environments AHCA-regulated construction sites The position is in-office and field-based in North Naples, FL , and ideal for candidates currently local or willing to relocate to the area. Requirements Minimum 3 years (PM) or 7 years (SPM) managing AHCA-compliant healthcare construction projects Proven success delivering new construction, renovations, and additions in active healthcare settings Thorough knowledge of AHCA codes, inspections, and compliance standards Strong leadership and communication skills with the ability to manage teams and client relationships Proficiency in construction project management software and scheduling tools Local candidates preferred; relocation support available for the right candidate Benefits Competitive base salary: $150,000 – $200,000 Performance-based bonuses Comprehensive benefits package including medical, dental, vision 401(k) with company match Paid time off and holidays Relocation assistance (if applicable) Opportunity to work on high-impact, healthcare-related projects in a growing region

Project Manager/Senior Project Manager-Healthcare Construction

About the Company Our client is a full-service General Contracting and Construction Management firm based in North Naples, FL , known for its commitment to quality, safety, and client satisfaction. With deep expertise in delivering complex healthcare facilities under AHCA guidelines, they have earned a trusted reputation across Southwest Florida’s healthcare construction landscape. Their team prides itself on a collaborative approach and a hands-on management style that consistently delivers projects on time, on budget, and to the highest standards. About the Position We are seeking a Project Manager or Senior Project Manager with proven experience managing healthcare construction projects under AHCA regulations . This is a key leadership role offering long-term growth with a well-established and respected regional firm. Depending on experience level, candidates will be considered for: Project Manager: 3 years of direct healthcare construction project management Senior Project Manager: 7 years of experience in managing complex healthcare projects, including ground-up and renovation work Key Project Types: Ground-up healthcare facilities (site-to-close) Surgical centers Renovations and additions to active healthcare environments AHCA-regulated construction sites The position is in-office and field-based in North Naples, FL , and ideal for candidates currently local or willing to relocate to the area. Requirements Minimum 3 years (PM) or 7 years (SPM) managing AHCA-compliant healthcare construction projects Proven success delivering new construction, renovations, and additions in active healthcare settings Thorough knowledge of AHCA codes, inspections, and compliance standards Strong leadership and communication skills with the ability to manage teams and client relationships Proficiency in construction project management software and scheduling tools Local candidates preferred; relocation support available for the right candidate Benefits Competitive base salary: $150,000 – $200,000 Performance-based bonuses Comprehensive benefits package including medical, dental, vision 401(k) with company match Paid time off and holidays Relocation assistance (if applicable) Opportunity to work on high-impact, healthcare-related projects in a growing region

Senior Estimator-General Construction

About the Company Our client is a respected Construction Management and Design-Build firm with over 30 years of successful project delivery along Florida’s Gulf Coast . Known for their hands-on leadership, collaborative approach, and deep local roots, the firm has built a reputation for delivering complex commercial projects with a focus on quality, efficiency, and integrity. With a long-standing presence in the region and a strong pipeline of upcoming work, they offer a stable and rewarding environment for high-level construction professionals ready to make an impact. About the Position We are seeking a Senior Estimator to join the team in Fort Myers, FL . This is a senior-level, hands-on estimating role requiring both conceptual and detailed estimating experience across a variety of project types. The ideal candidate is a “worker/doer” —someone who is not only strategic but also highly involved in the day-to-day work of building estimates from preconstruction through to project completion . This role is best suited for a local candidate or someone open to relocating to Fort Myers. Key Responsibilities: Lead conceptual and detailed estimates for design-build and CM projects Collaborate with preconstruction, operations, and executive teams Analyze drawings, specifications, and scopes of work to produce accurate cost estimates Participate in project planning, value engineering, and subcontractor engagement Support business development with pricing input during project pursuits Requirements 10 years of hands-on construction estimating experience Proven expertise in conceptual estimating and full preconstruction services Familiarity with a variety of commercial construction types (Design-Build/CM) Strong analytical skills with the ability to work independently and within a team BA/BS degree in Construction Management, Engineering, or related field preferred but not required Proficient with estimating software and tools (e.g., On-Screen Takeoff, Sage, Bluebeam, etc.) Must be based in or willing to relocate to the Fort Myers, FL area Benefits Competitive base salary: $175,000 – $225,000 Comprehensive benefits package: medical, dental, vision 401(k) plan with company match Paid holidays and PTO Relocation assistance (if applicable) Opportunity to join a stable, reputable firm with long-term regional presence LI-SK1

General / Senior Superintendent-High-Rise Construction

About the Company Our client is one of the most respected General Contractors in the nation , with a stronghold in Southeast Florida . Consistently ranked among the ENR Top 400 Contractors , this firm has earned its reputation through decades of delivering large-scale, technically complex, and high-profile projects across the commercial, residential, and hospitality sectors. Their commitment to excellence, safety, and innovation has positioned them as a go-to builder for some of the most iconic high-rise projects in South Florida . About the Position We are actively recruiting a seasoned General or Senior Superintendent to lead major high-rise construction projects in the Miami, FL area. This is a senior leadership role responsible for managing the project and field teams from groundbreaking through closeout . The ideal candidate will bring 10 years of proven experience in high-rise construction , with a track record of delivering complex projects on time, on budget, and to the highest standards of quality and safety. Project Types Include: High-rise residential towers Luxury hotels Mixed-use developments Key Responsibilities: Oversee all field operations and site personnel for multi-story, large-scale projects Drive schedule, quality, safety, and subcontractor performance Coordinate closely with project management, engineering, and ownership teams Manage inspections, logistics, materials, and manpower from site to close Serve as the key field leader and mentor to superintendents and site staff Requirements Minimum 10 years of experience in high-rise construction supervision Experience managing projects from groundbreaking through completion (site to close) Strong understanding of vertical construction, concrete structures, MEP coordination, and sequencing Leadership and team management skills on large-scale job sites Ability to oversee multiple trades and subcontractors in a fast-paced environment Local candidates preferred, but relocation support is available for the right individual Benefits Competitive base salary: $175,000 – $250,000 Performance-based bonuses Full benefits package: medical, dental, vision 401(k) with company match Paid holidays and PTO Relocation assistance (if applicable) Opportunity to lead some of the most notable high-rise projects in Miami with a top-tier builder

Senior Project Manager - General Construction

About the Company Our client is a vertically integrated Owner/Developer/General Contractor specializing in the development and construction of high-quality multifamily apartment communities across the Southeastern United States. With over 50,000 units successfully completed and an additional 20,000 units currently under construction or in the pipeline, the company has built a reputation for delivering projects with excellence, efficiency, and integrity. As a self-funded organization, our client maintains the unique ability to move forward and build confidently—even during market slowdowns—ensuring long-term stability and sustained growth. Their commitment to quality, schedule, and strong team collaboration has made them a trusted leader in multifamily development. About the Position We are seeking a Senior Project Manager to oversee the full lifecycle of multifamily construction projects, from preconstruction through close-out. The initial assignments will focus on large-scale, garden-style apartment communities—typically 250 to 300 units per project, 4-story wood-framed construction with surface parking. This is a key leadership role, responsible for managing project teams, budgets, schedules, and subcontractor relationships, while ensuring safety, quality, and timeliness across all phases of construction. Key Responsibilities: Lead and manage all phases of construction from site development through project completion. Coordinate with internal teams and stakeholders to establish budgets, schedules, and project execution strategies. Solicit subcontractor bids, conduct buyouts, and negotiate/execute contracts. Ensure high-quality construction practices, safety compliance, and adherence to design standards. Provide leadership on-site and in-office—balancing time between field oversight and project management duties. Collaborate with Preconstruction and Development teams for a seamless handoff and execution. Requirements 8 years of experience managing large-scale multifamily construction projects. Proven track record with garden-style, wood-frame apartment communities . Ability to lead all project phases independently—from groundbreaking to turnover. Strong understanding of construction contracts, bid solicitation, and subcontractor negotiations. Experience managing both field and office aspects of construction projects. Proficient in Microsoft Office and other construction management software. Excellent communication, problem-solving, and organizational skills. Willingness to travel to and spend time at project sites as needed. This position is based in Sarasota, FL. Benefits Competitive salary and performance-based bonuses Health, dental, and vision insurance 401(k) with company match Generous PTO and paid holidays Opportunities for career growth and advancement within a well-capitalized, expanding company Stable pipeline of work with long-term project visibility

Project Manager/Senior Project Manager-Healthcare Construction

About the Company Our client is a full-service General Contracting and Construction Management firm based in North Naples, FL , known for its commitment to quality, safety, and client satisfaction. With deep expertise in delivering complex healthcare facilities under AHCA guidelines, they have earned a trusted reputation across Southwest Florida’s healthcare construction landscape. Their team prides itself on a collaborative approach and a hands-on management style that consistently delivers projects on time, on budget, and to the highest standards. About the Position We are seeking a Project Manager or Senior Project Manager with proven experience managing healthcare construction projects under AHCA regulations . This is a key leadership role offering long-term growth with a well-established and respected regional firm. Depending on experience level, candidates will be considered for: Project Manager: 3 years of direct healthcare construction project management Senior Project Manager: 7 years of experience in managing complex healthcare projects, including ground-up and renovation work Key Project Types: Ground-up healthcare facilities (site-to-close) Surgical centers Renovations and additions to active healthcare environments AHCA-regulated construction sites The position is in-office and field-based in North Naples, FL , and ideal for candidates currently local or willing to relocate to the area. Requirements Minimum 3 years (PM) or 7 years (SPM) managing AHCA-compliant healthcare construction projects Proven success delivering new construction, renovations, and additions in active healthcare settings Thorough knowledge of AHCA codes, inspections, and compliance standards Strong leadership and communication skills with the ability to manage teams and client relationships Proficiency in construction project management software and scheduling tools Local candidates preferred; relocation support available for the right candidate Benefits Competitive base salary: $150,000 – $200,000 Performance-based bonuses Comprehensive benefits package including medical, dental, vision 401(k) with company match Paid time off and holidays Relocation assistance (if applicable) Opportunity to work on high-impact, healthcare-related projects in a growing region

General / Senior Superintendent-High-Rise Construction

About the Company Our client is one of the most respected General Contractors in the nation , with a stronghold in Southeast Florida . Consistently ranked among the ENR Top 400 Contractors , this firm has earned its reputation through decades of delivering large-scale, technically complex, and high-profile projects across the commercial, residential, and hospitality sectors. Their commitment to excellence, safety, and innovation has positioned them as a go-to builder for some of the most iconic high-rise projects in South Florida . About the Position We are actively recruiting a seasoned General or Senior Superintendent to lead major high-rise construction projects in the Miami, FL area. This is a senior leadership role responsible for managing the project and field teams from groundbreaking through closeout . The ideal candidate will bring 10 years of proven experience in high-rise construction , with a track record of delivering complex projects on time, on budget, and to the highest standards of quality and safety. Project Types Include: High-rise residential towers Luxury hotels Mixed-use developments Key Responsibilities: Oversee all field operations and site personnel for multi-story, large-scale projects Drive schedule, quality, safety, and subcontractor performance Coordinate closely with project management, engineering, and ownership teams Manage inspections, logistics, materials, and manpower from site to close Serve as the key field leader and mentor to superintendents and site staff Requirements Minimum 10 years of experience in high-rise construction supervision Experience managing projects from groundbreaking through completion (site to close) Strong understanding of vertical construction, concrete structures, MEP coordination, and sequencing Leadership and team management skills on large-scale job sites Ability to oversee multiple trades and subcontractors in a fast-paced environment Local candidates preferred, but relocation support is available for the right individual Benefits Competitive base salary: $175,000 – $250,000 Performance-based bonuses Full benefits package: medical, dental, vision 401(k) with company match Paid holidays and PTO Relocation assistance (if applicable) Opportunity to lead some of the most notable high-rise projects in Miami with a top-tier builder

Senior Estimator-General Construction

About the Company Our client is a respected Construction Management and Design-Build firm with over 30 years of successful project delivery along Florida’s Gulf Coast . Known for their hands-on leadership, collaborative approach, and deep local roots, the firm has built a reputation for delivering complex commercial projects with a focus on quality, efficiency, and integrity. With a long-standing presence in the region and a strong pipeline of upcoming work, they offer a stable and rewarding environment for high-level construction professionals ready to make an impact. About the Position We are seeking a Senior Estimator to join the team in Fort Myers, FL . This is a senior-level, hands-on estimating role requiring both conceptual and detailed estimating experience across a variety of project types. The ideal candidate is a “worker/doer” —someone who is not only strategic but also highly involved in the day-to-day work of building estimates from preconstruction through to project completion . This role is best suited for a local candidate or someone open to relocating to Fort Myers. Key Responsibilities: Lead conceptual and detailed estimates for design-build and CM projects Collaborate with preconstruction, operations, and executive teams Analyze drawings, specifications, and scopes of work to produce accurate cost estimates Participate in project planning, value engineering, and subcontractor engagement Support business development with pricing input during project pursuits Requirements 10 years of hands-on construction estimating experience Proven expertise in conceptual estimating and full preconstruction services Familiarity with a variety of commercial construction types (Design-Build/CM) Strong analytical skills with the ability to work independently and within a team BA/BS degree in Construction Management, Engineering, or related field preferred but not required Proficient with estimating software and tools (e.g., On-Screen Takeoff, Sage, Bluebeam, etc.) Must be based in or willing to relocate to the Fort Myers, FL area Benefits Competitive base salary: $175,000 – $225,000 Comprehensive benefits package: medical, dental, vision 401(k) plan with company match Paid holidays and PTO Relocation assistance (if applicable) Opportunity to join a stable, reputable firm with long-term regional presence

General / Senior Superintendent-High-Rise Construction

About the Company Our client is one of the most respected General Contractors in the nation , with a stronghold in Southeast Florida . Consistently ranked among the ENR Top 400 Contractors , this firm has earned its reputation through decades of delivering large-scale, technically complex, and high-profile projects across the commercial, residential, and hospitality sectors. Their commitment to excellence, safety, and innovation has positioned them as a go-to builder for some of the most iconic high-rise projects in South Florida . About the Position We are actively recruiting a seasoned General or Senior Superintendent to lead major high-rise construction projects in the Miami, FL area. This is a senior leadership role responsible for managing the project and field teams from groundbreaking through closeout . The ideal candidate will bring 10 years of proven experience in high-rise construction , with a track record of delivering complex projects on time, on budget, and to the highest standards of quality and safety. Project Types Include: High-rise residential towers Luxury hotels Mixed-use developments Key Responsibilities: Oversee all field operations and site personnel for multi-story, large-scale projects Drive schedule, quality, safety, and subcontractor performance Coordinate closely with project management, engineering, and ownership teams Manage inspections, logistics, materials, and manpower from site to close Serve as the key field leader and mentor to superintendents and site staff Requirements Minimum 10 years of experience in high-rise construction supervision Experience managing projects from groundbreaking through completion (site to close) Strong understanding of vertical construction, concrete structures, MEP coordination, and sequencing Leadership and team management skills on large-scale job sites Ability to oversee multiple trades and subcontractors in a fast-paced environment Local candidates preferred, but relocation support is available for the right individual Benefits Competitive base salary: $175,000 – $250,000 Performance-based bonuses Full benefits package: medical, dental, vision 401(k) with company match Paid holidays and PTO Relocation assistance (if applicable) Opportunity to lead some of the most notable high-rise projects in Miami with a top-tier builder

Senior Project Manager - General Construction

About the Company Our client is a vertically integrated Owner/Developer/General Contractor specializing in the development and construction of high-quality multifamily apartment communities across the Southeastern United States. With over 50,000 units successfully completed and an additional 20,000 units currently under construction or in the pipeline, the company has built a reputation for delivering projects with excellence, efficiency, and integrity. As a self-funded organization, our client maintains the unique ability to move forward and build confidently—even during market slowdowns—ensuring long-term stability and sustained growth. Their commitment to quality, schedule, and strong team collaboration has made them a trusted leader in multifamily development. About the Position We are seeking a Senior Project Manager to oversee the full lifecycle of multifamily construction projects, from preconstruction through close-out. The initial assignments will focus on large-scale, garden-style apartment communities—typically 250 to 300 units per project, 4-story wood-framed construction with surface parking. This is a key leadership role, responsible for managing project teams, budgets, schedules, and subcontractor relationships, while ensuring safety, quality, and timeliness across all phases of construction. Key Responsibilities: Lead and manage all phases of construction from site development through project completion. Coordinate with internal teams and stakeholders to establish budgets, schedules, and project execution strategies. Solicit subcontractor bids, conduct buyouts, and negotiate/execute contracts. Ensure high-quality construction practices, safety compliance, and adherence to design standards. Provide leadership on-site and in-office—balancing time between field oversight and project management duties. Collaborate with Preconstruction and Development teams for a seamless handoff and execution. Requirements 8 years of experience managing large-scale multifamily construction projects. Proven track record with garden-style, wood-frame apartment communities . Ability to lead all project phases independently—from groundbreaking to turnover. Strong understanding of construction contracts, bid solicitation, and subcontractor negotiations. Experience managing both field and office aspects of construction projects. Proficient in Microsoft Office and other construction management software. Excellent communication, problem-solving, and organizational skills. Willingness to travel to and spend time at project sites as needed. This position is based in Sarasota, FL Benefits Competitive salary and performance-based bonuses Health, dental, and vision insurance 401(k) with company match Generous PTO and paid holidays Opportunities for career growth and advancement within a well-capitalized, expanding company Stable pipeline of work with long-term project visibility

General / Senior Superintendent-High-Rise Construction

About the Company Our client is one of the most respected General Contractors in the nation , with a stronghold in Southeast Florida . Consistently ranked among the ENR Top 400 Contractors , this firm has earned its reputation through decades of delivering large-scale, technically complex, and high-profile projects across the commercial, residential, and hospitality sectors. Their commitment to excellence, safety, and innovation has positioned them as a go-to builder for some of the most iconic high-rise projects in South Florida . About the Position We are actively recruiting a seasoned General or Senior Superintendent to lead major high-rise construction projects in the Miami, FL area. This is a senior leadership role responsible for managing the project and field teams from groundbreaking through closeout . The ideal candidate will bring 10 years of proven experience in high-rise construction , with a track record of delivering complex projects on time, on budget, and to the highest standards of quality and safety. Project Types Include: High-rise residential towers Luxury hotels Mixed-use developments Key Responsibilities: Oversee all field operations and site personnel for multi-story, large-scale projects Drive schedule, quality, safety, and subcontractor performance Coordinate closely with project management, engineering, and ownership teams Manage inspections, logistics, materials, and manpower from site to close Serve as the key field leader and mentor to superintendents and site staff Requirements Minimum 10 years of experience in high-rise construction supervision Experience managing projects from groundbreaking through completion (site to close) Strong understanding of vertical construction, concrete structures, MEP coordination, and sequencing Leadership and team management skills on large-scale job sites Ability to oversee multiple trades and subcontractors in a fast-paced environment Local candidates preferred, but relocation support is available for the right individual Benefits Competitive base salary: $175,000 – $250,000 Performance-based bonuses Full benefits package: medical, dental, vision 401(k) with company match Paid holidays and PTO Relocation assistance (if applicable) Opportunity to lead some of the most notable high-rise projects in Miami with a top-tier builder