Senior Fullstack Engineer
KualtyMedellĂn, Antioquia, Colombia
Posted February 13, 2026
Full Time
About the Company
Kualty delivers flexible IT staffing and low‑code software development services designed to keep projects on track in fast‑moving markets. Their core approach combines a rotating staffing model with continuous shadow‑training, ensuring that incoming team members are fully briefed and can hit the ground running. By treating teams like a soccer squad—planning for mid‑game rotations—Kualty reduces the impact of turnover and preserves project momentum. The company’s focus on low‑code platforms accelerates delivery while keeping costs predictable. Kualty’s culture of proactive training and adaptive staffing makes it a reliable partner for organizations that need rapid, high‑quality tech talent.
Job Description
We are looking for a Senior Fullstack Engineer to join a small, flat, high-agency team that owns the product end-to-end, from React/Next.js UI and Expo React Native mobile apps to TypeScript APIs on AWS.
Requirements
- 8+ years professional experience shipping production React/Next.js front-ends and Node/TypeScript back-ends
- Proven ownership of AWS-based systems (Lambda, RDS, S3, CloudFront) and IaC with CDK or Terraform
- Deep understanding of TypeScript across client, server, and shared libraries
- Strong grasp of modern React (hooks, suspense, server components) and Tailwind + shadcn-ui
- Ability to design, document, and evolve REST/JSON APIs; familiarity with edge functions & streaming
- Habit of measuring what you build—analytics, logging, tracing, A/B tests—and iterating on the data
- Excellent written and asynchronous communication; comfortable in lightweight agile rituals
- Proactive communicator and takes initiative instead of waiting for instructions
- High Agency and can figure things out with minimal instructions/guidance
- English proficiency: B2 or higher
Benefits
- Compensation paid in US dollars
- Participation in innovative, high-impact initiatives
- People-centric culture with autonomy and continuous learning
- BYOD stipend ($40 USD)
- 10 days PTO
- Observe all holidays in your country
