Hybrid requirements: 3 days per week in the office.
Longevity Partners is seeking a seasoned and visionary Principal Software Engineer to lead the design, coordination, and scaling of digital products central to our consultancy-as-a-service offerings. This individual will be instrumental in driving the architectural, operational, and strategic roadmap for the firm’s tech stack — particularly the Impact Service Platform (ISP) and related AWS-hosted platforms.
This is a hands-on leadership role with significant influence across DevOps, architecture design, database integration, team management, and product direction. You will coordinate a rapidly growing engineering team and play a pivotal role in enabling scalable, high-performance solutions that support our sustainability consultancy mission.

TECHNICAL SKILLS

• Proven experience with AWS services (including Lambda, RDS, DynamoDB, EC2, Amplify).
• Advanced proficiency in backend (Python, Node.js) and frontend (TypeScript, React) technologies.
• Deep understanding of modern database technologies and data integration patterns.
• Strong grasp of CI/CD tools and practices (e.g., GitHub Actions, Jenkins, Terraform).
• Familiarity with containerization (Docker/Kubernetes) and serverless architecture.

PROFESSIONAL EXPERIENCE

• 6+ years in software engineering, with a strong track record in technical leadership and architecture.
• Experience managing cross-functional teams in agile environments.
• Background in SaaS platform development; sustainability or ESG software domain is a plus.

SOFT SKILLS

• Strong strategic thinking with the ability to influence product direction.
• Excellent communication skills — comfortable collaborating across disciplines and with senior leadership.
• High ownership mentality with a passion for clean, maintainable code and scalable solutions.