Senior Subject Specialist - Science

We are looking for an experienced subject specialist (Math and Science) to support our Academic Impact team :

Role : Senior Subject Specialist - Science

Department : Academic Impact

Level : Mid-Senior Level

Reporting to : Head of Academics

About the Role :

We are seeking an experienced Senior Subject Specialist - Science at ExcelOne to lead the creation of high-quality, research-backed K–12 assessment content. This role focuses on developing skill-based, competency-driven assessments that measure students' conceptual understanding, problem-solving, and reasoning, aligned with national and international standards.

As a core member of our academic team, you will actively perform and lead tasks associated with the following key items :

• Item creation
• Item review and validation
• Data Analysis post assessments
• Ongoing assessment, content, and rubric enhancement
• Report visualisation

Core Responsibilities :

Develop high-quality assessment items for mathematics and science across K-12, based on the company's assessment philosophy

Collaborate in rigorous item review cycles, ensuring alignment with learning objectives, clarity in phrasing, and appropriate levels of cognitive complexity

Ensure that content is inclusive, engaging, and aligned with national and international curriculum frameworks

Iterate on content based on pilot data, psychometric analysis, and stakeholder feedback.

Work closely with psychometricians, senior reviewers, educators, and school stakeholders to maintain strong alignment between assessment objectives and learning outcomes.

Provide academic guidance to graphic designers and content developers for optimal visual storytelling and layout to report on assessment data for various stakeholders.

Analyze assessment performance data to draw actionable insights and recommendations for content improvement.

Support field rollout and implementation of assessments, including orientation and training for school staff.

Assist with troubleshooting content-related queries during and after test administration.

Facilitate internal capacity-building workshops, contribute to academic publications or conference presentations.

Attitudes we value :

Integrity

Ownership

Ability to reflect and grow

Asking for and giving support

Asking questions

Qualifications and Skills :

Master's degree in Science, Mathematics, and STEM Education

5 years of experience in K-12 education, assessment design, and curriculum development

Demonstrated experience in competency-based item creation and review for large-scale assessments

Strong understanding of instructional design principles and learning science.

Excellent written and verbal communication skills.

Proficiency in using digital tools for content development and collaboration (e.g., Google Workspace, Excel, assessment authoring platforms).

Familiarity with assessment frameworks, learning progressions, and psychometrics.

Why Join ExcelOne

Impact : Contribute to transforming education through data-driven insights.

Innovation : Work at the forefront of global assessment initiatives.

Collaboration : Be part of a passionate and driven team that values creativity and impact.

Professional Growth : Opportunities for career advancement and professional development.

About ExcelOne :

ExcelOne, an initiative of Stones2Milestones (S2M), is focused on advancing global, new-age education through cutting-edge assessment initiatives, most notably by bringing the 'PISA for Schools' program to India in partnership with the OECD. Our mission is to enhance education outcomes through data-driven insights and innovative assessment solutions.

Skills Required

assessment design, Curriculum Development, Psychometrics, Excel