Senior Full Stack Software Engineer

Job overview

Senior Full Stack Software Engineer is described as hybrid or remote-friendly depending on location and team needs; the listing is in Boston, MA. The stated base salary is $160,000–$210,000 per year, with a competitive equity package. The role supports a growing technology startup's core product and internal systems. The engineer builds and scales customer-facing features and internal applications across frontend and backend systems. The role contributes to product delivery, system reliability, technical decisions, and engineering practices while collaborating with product and design and mentoring junior engineers.

What you'll do

• Build and maintain full-stack web applications
• develop backend services and APIs
• implement responsive frontend interfaces
• collaborate with product managers and designers
• contribute to architecture and technical roadmaps
• write tested code and participate in reviews
• improve engineering processes, tooling, and reliability
• mentor junior engineers.

What we're looking for

Skills & competencies

senior full stack software engineer

software engineering

react

typescript

next.js

node.js

python

postgresql

boston ma

hybrid or remote-friendly

$160k–$210k

Work arrangement

• Weekend coverage required

Benefits & perks

• Competitive equity package, medical, dental and vision coverage, flexible PTO, and standard startup benefits.

Why this role

Modern stack includes React, TypeScript, Next.js, Node.js and/or Python, PostgreSQL, Redis, AWS or GCP, Docker, CI/CD, REST, and GraphQL.

About the employer

twenty80.io is hiring for this role. Industry: Custom Computer Programming Services. Sector: 54.