# Senior Software Engineer (Full Stack)

> CallTek · Nairobi, Kenya · Full-time · Posted 2026-10-19

**Workplace:** on_site

**Department:** IT Development

## Description

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.

## Apply

[Apply at CallTek](https://apply.workable.com/staff4me/j/471CD798E2/apply)

---
Powered by [Workable](https://www.workable.com)