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Third Engineer Jobs in Massachusetts (NOW HIRING)

Third Way Health

AI / ML Engineer

Cambridge, MA · On-site

Third Way Health is a company dedicated to improving the patient experience in medical practices across the United States. They are seeking a Senior ML Engineer to build next-generation AI systems ...

Third Way Health

Head of Engineering

Cambridge, MA · On-site

Third Way Health is dedicated to improving patient experience and access in medical practices across the United States. They are seeking a Head of Engineering to lead their global team of developers ...

Boilerlogic

Assistant Plant Operator

Saugus, MA · On-site

$50 - $70/hr

For the State of Massachusetts, there is a requirement for an Assistant Plant Operator to hold a Massachusetts 3rd Engineer's and Massachusetts Hoisting License: 1D / 2C or ability to obtain these ...

New

Prattwhitney

Test Engineer II - 3rd Shift

Andover, MA · On-site

$69 - $131/hr

In this role, you will support the 3rd shift production floor of CCM High Mix area in a test engineering capacity. This includes, but is not limited to, training test operators, troubleshooting test ...

JLL

Operating Engineer 3rd Shift

Franklin, MA · On-site

$34.57 - $42.31/hr

On-site, Monday-Friday (3rd shift) 11:00 PM to 7:30 AM Reporting to: Engineering Manager Estimated Compensation: $34.57- $42.31 an hour paid bi-weekly, the range listed is an estimate and not ...

Third Way Health

Senior QA Engineer

Cambridge, MA · On-site

Third Way Health is dedicated to improving patient experiences in medical practices across the United States through innovative service automation. The Senior QA Engineer will be responsible for ...

Raytheon

Test Engineer II - 3rd Shift

Andover, MA

In this role, you will support the 3rd shift production floor of CCM High Mix area in a test engineering capacity. This includes, but is not limited to, training test operators, troubleshooting test ...

Raytheon

Test Engineer II - 3rd Shift

Andover, MA

In this role, you will support the 3rd shift production floor of CCM High Mix area in a test engineering capacity. This includes, but is not limited to, training test operators, troubleshooting test ...

Third Way Health

AI / ML Engineer

Cambridge, MA · On-site

Who we are Third Way Health helps medical practices across the United States improve the patient ... About the position We're seeking a Senior ML Engineer to build next-generation AI systems that help ...

Third Way Health

Head of Engineering

Cambridge, MA · On-site

Who we are Third Way Health (www.thirdway.health) helps medical practices and healthcare ... You will own our engineering strategy for precisely and reliably delivering AI-enabled service ...

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Showing results 21-40

All JobsThird Engineer JobsThird Engineer Jobs in Massachusetts

Third Engineer information

See Massachusetts salary details

$42.6K

$111.1K

$150.2K

How much do third engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for third engineer in Massachusetts is $111,126.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,700.00 and $127,200.00 per year, depending on experience, location, and employer.

What is a third engineer?

A Third Engineer, also known as a Third Assistant Engineer, is a licensed member of the engineering department on a merchant ship. They are responsible for operating and maintaining machinery in the engine room, including boilers, generators, and pumps. Third Engineers typically report to the Second Engineer and assist in routine maintenance, troubleshooting, and emergency repairs to ensure the vessel operates safely and efficiently. They also keep records of engine performance and fuel consumption as part of their daily duties.

What are the key skills and qualifications needed to thrive as a third engineer, and why are they important?

To thrive as a Third Engineer, you need a solid grounding in marine engineering principles, a relevant engineering degree, and a valid Certificate of Competency. Familiarity with shipboard machinery, maintenance management systems, and safety protocols, as well as proficiency in using diagnostic and monitoring tools, is crucial. Strong problem-solving abilities, teamwork, and effective communication help you respond quickly to technical issues and coordinate with the ship's crew. These skills ensure the vessel operates safely and efficiently, minimizing downtime and supporting overall maritime operations.

What are some common challenges faced by third engineers working on commercial vessels?

Third Engineers often manage the operation and maintenance of a ship’s machinery under the guidance of senior engineers. Common challenges in this role include troubleshooting unexpected mechanical failures, adapting to rapidly changing weather or sea conditions, and ensuring compliance with strict safety and environmental regulations. Additionally, Third Engineers must effectively coordinate with multinational crews and work in shifts, which can demand flexibility and strong communication skills. Overcoming these challenges helps build valuable experience for advancement to higher engineering positions.

What is the difference between Third Engineer vs Second Engineer?

AspectThird EngineerSecond Engineer
Required CertificationsSTCW Basic Safety, Engine Room CertificationsSTCW Basic Safety, Engine Room Certifications, Additional Endorsements
Work EnvironmentEngine room, ship maintenance, safety proceduresEngine room, more complex machinery, supervisory tasks
Employer & Industry UsageMaritime shipping, cargo ships, cruise shipsMaritime shipping, cargo ships, cruise ships

The Third Engineer and Second Engineer roles are both vital engine department positions on ships. The Third Engineer typically handles routine maintenance and watchkeeping, while the Second Engineer has more responsibilities, including supervising engine room operations and assisting the Chief Engineer. Both roles require similar certifications, but the Second Engineer's duties are more advanced, reflecting experience and additional qualifications.

What are popular job titles related to Third Engineer jobs in Massachusetts?

For Third Engineer jobs in Massachusetts, the most frequently searched job titles are:

What job categories do people searching Third Engineer jobs in Massachusetts look for?

The top searched job categories for Third Engineer jobs in Massachusetts are:

What cities in Massachusetts are hiring for Third Engineer jobs?

Cities in Massachusetts with the most Third Engineer job openings:

Third Engineer jobs near you
Infographic showing various Third Engineer job openings in Massachusetts as of August 2026, with employment types broken down into 87% Full Time, 8% Part Time, and 5% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $111,126 per year, or $53.4 per hour.

AI / ML Engineer

Third Way Health

Cambridge, MA • On-site

Full-time

Re-posted 7 days ago

Job description

Job Summary:
Third Way Health is a company dedicated to improving the patient experience in medical practices across the United States. They are seeking a Senior ML Engineer to build next-generation AI systems that enhance patient access to care by architecting production ML infrastructure in a highly regulated healthcare environment.
Responsibilities:
• Architect and build large-scale AI systems that integrate high-volume voice, text, and contextual event streams with extensive knowledge bases to deliver real-time recommendations, automations, and decision support.
• Design and operate workflow-oriented AI systems, including DAG-based execution graphs, stateful pipelines, and agent-driven workflows with clear observability, reproducibility, and fault tolerance.
• Build agent architectures spanning agent-to-agent coordination, feedback loops, tool-calling systems, and long-running autonomous workflows, balancing control, safety, and adaptability.
• Design and implement data models, feature pipelines, and APIs to support model training, low-latency inference, and continuous learning.
• Develop predictive, real-time analytics systems that combine streaming data, ML inference, and event-driven triggers to surface insights and automate actions at scale.
• Implement and maintain end-to-end ML platforms, including model training, evaluation, deployment, online inference, monitoring, and drift detection.
• Partner closely with product managers, data scientists, and QA engineers to translate experimental models into reliable, production-grade AI services.
• Identify, diagnose, and resolve performance and scaling bottlenecks across data pipelines, inference services, and orchestration layers as production workloads grow.
Qualifications:
Required:
• 5+ years of software engineering experience, with 3+ years focused on machine learning or applied AI systems.
• Strong proficiency in Python, particularly for ML pipelines, frameworks, inference services, and APIs (e.g., scikit-learn, Sanic API, PyTorch Lightning, Pydantic AI, LangGraph, Bedrock, OpenAI / Anthropic SDKs).
• Experience designing ML-centric data architectures, including feature stores, vector databases, and time-series systems for monitoring and analytics.
• Hands-on experience with cloud-native inference: containerized model serving, autoscaling, GPU/accelerator workloads, and low-latency production deployments.
• Experience operating end-to-end MLOps platforms (e.g., MLflow, Kubeflow), including CI/CD for models, experiment tracking, and rollout strategies.
• Solid understanding of workflow orchestration (graph-based execution, retries, state management) in ML and agent-based systems.
• Excellent communication skills, with the ability to collaborate effectively across engineering, product, and non-technical stakeholders.
• Strong interest in healthcare innovation and building AI systems that meaningfully improve health outcomes.
• Working knowledge of AI safety, bias detection, and responsible AI practices.
Preferred:
• Experience building AI systems in healthcare or regulated environments, with familiarity with standards such as HIPAA, GDPR, or FDA guidance.
• Proven experience leading complex technical initiatives and mentoring junior engineers.
• Strong applied knowledge of event-driven architectures and streaming systems (Kafka, Pub/Sub, Kinesis, RabbitMQ).
• Hands-on experience designing and operating vector search, RAG pipelines, and hybrid retrieval systems.
• Experience with agent frameworks, multi-agent coordination patterns, and long-running agent loops in production environments.
• Familiarity with real-time analytics stacks combining streaming data, ML inference, and operational dashboards.
Company:
Third Way Health is a healthcare operations partner that provides human-centric solutions to support administrative functions. Founded in 2022, the company is headquartered in Los Angeles, USA, with a team of 501-1000 employees. The company is currently Growth Stage.

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