Senior Software Engineer (Full Stack)
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 20 October 2026.
About the role
We are seeking an experienced Senior Software Engineer (Full Stack) to design, develop, and maintain enterprise SaaS applications. This role requires advanced JavaScript/TypeScript expertise, strong full-stack development skills, and experience building scalable, secure, high-performance applications. The ideal candidate will collaborate with distributed engineering teams, lead technical initiatives, and mentor developers.
Key Responsibilities
- Design, develop, troubleshoot, and maintain complex full-stack web applications.
- Build modern single-page applications using React, AngularJS, or Vue.js.
- Develop RESTful APIs, microservices, and backend solutions using Node.js and Express.
- Lead code reviews, system design, and software engineering best practices.
- Implement unit testing, CI/CD, and Agile development processes.
- Collaborate with QA teams to ensure application performance, security, scalability, and data integrity.
- Support legacy application modernization and mentor junior developers.
Requirements
- Support legacy application modernization and mentor junior developers.
Required Qualifications
- 5+ years of expert-level JavaScript/TypeScript experience.
- Strong hands-on experience with Node.js, Express, HTML, CSS, and SCSS.
- Experience with React, AngularJS, Vue.js, or similar frameworks.
- Knowledge of RESTful APIs, microservices, and full-stack application architecture.
- Experience with Agile, Git, CI/CD, unit testing, and test-driven development.
- Experience with Docker in Linux or macOS environments.
- Experience with NoSQL or MultiValue (PICK) databases.
- Strong troubleshooting, communication, and collaboration skills.
Preferred Qualifications
- 10+ years of software industry experience.
- AWS or Azure cloud experience.
- Legacy application modernization experience.
- Human Capital Management (HCM) industry knowledge.
- Bachelor's degree in Computer Science or equivalent experience.
What this role asks for
Particular to this role
Agile · CSS · Docker · Express · Git · HTML · Microservices · NoSQL
Rare in CallTek's other 13 open postings.
Standard for full stack roles
AWS · CI/CD · JavaScript · Node.js · REST · React · TypeScript
Common in full stack postings at any company.
Compared with CallTek's other open jobs.
The team: IT Development
This role is one of 3 open in IT Development. 3 were posted in the last 30 days.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Agile (2 of 3), AWS (2 of 3), Azure (2 of 3), Docker (2 of 3), JavaScript (2 of 3), Linux (2 of 3), Node.js (2 of 3)
OTHER ROLES ON THIS TEAM
- Principle Infrastructure Engineer posted Oct 19
- Software Architect posted Oct 19
From the team and dates on CallTek's own job board.
Salary context
5 other open postings titled Senior Software Engineer (Full Stack) state a salary: median USD 170,000 to USD 210,000 a year.
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