Data Annotator

Contineu; Bengaluru; On-site; INR 240,000 - 360,000; Full time

Job summary

Contineu is hiring a Data Annotation Specialist to review 360° construction-site imagery and annotate defects, quality issues, and safety observations. You will classify items, follow guidelines, and perform self-QC to ensure high accuracy and productivity.

The role emphasizes attention to detail, adherence to taxonomies, and teamwork within a QA/QC driven environment. Freshers with civil background are welcome to apply, offering exposure to modern annotation tools and construction technology.

Qualifications

• 0–2 years of experience; freshers welcome.
• B.E./B.Tech in Civil Engineering or Construction Management preferred.
• Experience with 360°/panoramic imagery desirable.

Responsibilities

• Review 360° construction-site imagery and annotate defects and quality issues.
• Identify and annotate construction-site safety issues and unsafe conditions.
• Classify defects and safety observations according to defined taxonomies.
• Follow project-specific annotation guidelines and QC standards.
• Perform self-QC before submitting tasks and incorporate feedback from QC leads.
• Report unclear guidelines or platform issues to the QC team.

Skills

Attention to detail

Communication

Teamwork

Computer proficiency

Education

B.E./B.Tech in Civil Engg or Construction Management

Tools

CVAT

Label Studio

Job description

We’re Hiring | Data Annotation Specialist – Construction Quality & Safety

Contineu is looking for detail-oriented and motivated individuals to join our Data Quality & Annotation Systems team.

We work with 360° construction-site imagery to identify and annotate construction defects, quality issues, and safety observations. As a Data Annotation Specialist, you will play an important role in ensuring that construction data is accurately captured and maintained according to our defined standards.

What You’ll Do

• Review 360° construction-site imagery and panoramic images.
• Identify and annotate construction defects and quality issues.
• Identify and annotate construction-site safety issues and unsafe conditions.
• Classify defects and safety observations according to defined taxonomies.
• Identify issues such as PPE non-compliance, fall hazards, missing barricading, unsafe access, housekeeping issues, unsafe material storage, exposed hazards, and other site‑safety conditions.
• Follow project‑specific annotation guidelines and quality standards.
• Perform self‑QC before submitting tasks.
• Review and correct annotations based on feedback from QC Leads.
• Maintain high levels of accuracy, consistency, and productivity.
• Escalate unclear or ambiguous cases to the QC team.li>
• Participate in training and calibration sessions.
• Complete assigned tasks within defined turnaround times.
• Report unclear guidelines, recurring issues, or annotation‑platform problems to the QC team.
• Strong attention to detail.
• Ability to identify defects, construction conditions, and safety issues from images.
• Ability to follow detailed guidelines consistently.
• Good computer proficiency.
• Comfortable working with web‑based software and annotation tools.
• Ability to work with repetitive visual tasks without compromising accuracy.
• Good communication and teamwork skills.
• Ability to meet quality and productivity targets.
• Willingness to learn construction defects and safety standards.

Good to Have

• B.E. / B.Tech in Civil Engineering or Construction Management.
• Previous experience in data annotation, image annotation, visual inspection, QA/QC, or construction.
• Experience with tools such as CVAT, Label Studio, or similar annotation platforms.
• Understanding of construction activities and building components.
• Basic understanding of construction‑site safety practices.
• Experience working with 360° or panoramic imagery.
• Previous construction QA/QC or safety inspection experience.

We’re particularly interested in candidates who:

• Have a Civil Engineering or Construction Management background.
• Can identify construction defects and safety issues from visual information.
• Have a strong quality‑oriented mindset.
• Can consistently follow standardized guidelines and taxonomies.
• Are comfortable working with large volumes of visual data.
• Can balance speed and accuracy.
• Are receptive to feedback and willing to continuously improve.

The role will be evaluated based on:

• Annotation Accuracy
• Error Rate
• Productivity
• Turnaround Time
• Guideline Compliance
• Consistency
• QC Performance

Education: B.E. / B.Tech in Civil Engineering or Construction Management preferred.

Experience: 0–2 years

Freshers are welcome to apply.

Why Join Contineu?

• Work on real‑world construction projects.
• Gain hands‑on experience in Construction Technology and Digital QA/QC.
• Work with 360° construction imagery and modern annotation tools.
• Develop expertise in construction defect and safety identification.
• Learn structured quality‑control and data‑quality processes.
• Work at the intersection of Construction, Quality, Safety & Technology.
• Opportunity to grow with a rapidly developing construction‑tech team.