Senior Full-Stack Engineer — Remote & API Modernization

Sharetec; Massachusetts; On-site; USD 120,000 - 140,000; Full time

Benefits offered by this job

Competitive salaries

Medical, dental, vision, life, and STD

Paid time off and holidays (birthday)

Employee referral program ($1,000)

401(k) with company matching

Job summary

Sharetec is seeking a Senior Software Engineer to join our Digital team as a core full stack builder and technical owner. You will design, build, and maintain the Digital Banking platform, powering hundreds of credit unions and their members.

You’ll lead modernization initiatives, architect a new API layer, and deliver features across web and mobile with React, TypeScript, Next.js, and C#/ASP.NET Core. This remote role supports candidates nationwide (excluding CA) with salary: $120,000–$140,000

Qualifications

• 5+ years of professional software engineering experience with demonstrated full stack ownership
• Strong proficiency in React and TypeScript — building and maintaining production-quality frontend applications
• Experience with Next.js or a comparable server-side rendering framework
• Experience shipping production mobile applications to iOS and Android using React Native
• Solid backend development experience with C# / ASP.NET Core; familiarity with other languages encouraged
• Solid API design and integration experience with RESTful APIs
• Experience with relational databases such as PostgreSQL or MySQL in production
• Experience with Docker and containerized development or deployment environments
• Demonstrated experience modernizing an existing production system; remote-friendly collaboration

Responsibilities

• Design, build, and maintain production-quality features across web and mobile platforms
• Own the full feature lifecycle from design to production monitoring
• Contribute to API design standards and integration patterns
• Lead code reviews and mentor teammates
• Collaborate in a remote-first, async environment

Skills

Full stack ownership

React

TypeScript

Next.js

React Native

C#

ASP.NET Core

Docker

CI/CD

PostgreSQL

MySQL

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

CI/CD

PostgreSQL

MySQL

React Native

Job description

Sharetec is seeking a Senior Software Engineer to join our Digital team as a core full stack builder and technical owner. You will design, build, and maintain the Digital Banking platform, powering hundreds of credit unions and their members.

You’ll lead modernization initiatives, architect a new API layer, and deliver features across web and mobile with React, TypeScript, Next.js, and C#/ASP.NET Core. This remote role supports candidates nationwide (excluding CA) with salary: $120,000–$140,000