Build the Future of Organizations
SIENNA is a global consulting and technology firm where bold thinkers, strategic doers, and passionate changemakers come together to transform organizations worldwide.
Why SIENNA
At SIENNA, we believe the most powerful force for organizational change is people — their ideas, their courage, and their commitment to something larger than themselves.
We work at the intersection of strategy, technology, and human potential. Our consultants don't just advise — they roll up their sleeves, embed with clients, and drive real transformation.
What We Stand For
Bold Thinking
We challenge conventional wisdom and bring fresh perspectives to every engagement.
Deep Expertise
Our teams combine deep functional knowledge with cross-sector experience.
Inclusive Excellence
We build diverse teams because we know the best solutions come from varied perspectives.
Client Impact
We measure success by the lasting change we create for our clients and communities.
Global Mindset
We operate across borders, cultures, and sectors with fluency and respect.
Continuous Growth
We invest in our people's development as much as we invest in our clients' success.
Current Openings
Senior Consultant, Transformation & Change
AI Strategy Consultant
Organizational Design Specialist
Strategic Partnerships Manager
Innovation Strategy Analyst
Leadership Development Facilitator
What We Offer
Global Mobility
Work across our offices in Washington D.C., London, Singapore, and Nairobi.
Continuous Learning
Annual learning stipend, certifications, and access to SIENNA's internal knowledge platform.
Meaningful Work
Every engagement is chosen for its potential to create systemic, lasting change.
Competitive Compensation
Market-leading salaries, performance bonuses, and equity participation for senior roles.
Don't See the Right Role?
We're always looking for exceptional talent. Send us your profile and we'll reach out when the right opportunity arises.