Senior Full Stack Developer

Job Summary:

We're looking for an experienced Senior Full Stack Developer with a strong background in designing, developing, modernizing, and maintaining enterprise-grade web applications and business-critical digital platforms. The ideal candidate should have hands-on experience across front-end and back-end technologies, building scalable, secure, and high-performance solutions while collaborating with cross-functional teams to deliver innovative business applications.

Key Responsibilities:

Full Stack Engineering

• Design, develop, test, and maintain secure, scalable, and highly available full stack applications
• Translate business and functional requirements into technical designs, architecture decisions, and delivery plans
• Build cloud-native solutions using microservices, stateless service patterns, containerization, and API-first principles
• Contribute to solution architecture reviews, technology selection, engineering standards, and platform roadmaps
• Stay hands-on in coding, troubleshooting, technical spikes, and resolving complex production issues

Frontend Development

• Develop responsive Single Page Applications using Python, React, Next.js, TypeScript, and modern web standards
• Build reusable component libraries and design systems using Tailwind CSS, Radix, or ShadCN
• Implement role-based dashboards, accessible interfaces, reusable state/data-fetching patterns, and responsive workflows
• Optimize frontend performance, usability, maintainability, browser compatibility, and accessibility

Backend Development

• Design and develop backend services and microservices using Java and Spring Boot (Node.js/NestJS experience a plus)
• Build REST and SOAP services, enterprise integration layers, background processing, and event-driven workflows
• Implement authentication, authorization, role-based access control, audit logging, idempotency, and exception handling
• Design configurable business workflows, approval processes, task orchestration, and regulatory process automation

AI-Assisted Engineering

• Use approved AI-assisted development tools to improve delivery productivity, documentation, testing, and code quality
• Establish governed AI-assisted workflows that retain human review, security, compliance, traceability, and IP controls
• Assess emerging engineering tools and recommend practical adoption patterns aligned with enterprise standards

Leadership & Collaboration

• Mentor engineers, conduct code and design reviews, and promote consistent software engineering practices
• Collaborate with product owners, business analysts, architects, QA, cybersecurity, infrastructure, and release teams
• Lead technical estimation, sprint planning, dependency management, risk resolution, and delivery governance
• Produce clear architecture decisions, technical documentation, API specifications, operational runbooks, and knowledge-transfer materials

DevOps & Deployment

• Package and deploy applications using Docker, Kubernetes, OpenShift, and Helm
• Build and maintain CI/CD pipelines using GitLab, Jenkins, or equivalent platforms
• Implement structured logging, monitoring, alerting, health checks, and operational dashboards
• Improve release reliability through automated build, test, security scanning, deployment, and rollback practices
• Contribute to infrastructure automation and environment consistency using Infrastructure as Code

Integrations & Data

• Integrate internal platforms, external service providers, and enterprise applications
• Implement synchronous and asynchronous integrations using REST, SOAP, or equivalent messaging technologies
• Design data models and persistence services using PostgreSQL, Snowflake, Oracle, MySQL, or equivalent relational databases
• Apply sound practices for transactions, data integrity, query optimization, integration resiliency, and failure recovery
• Strong understanding of transactional and analytical data models required

Required Skills & Experience:

• 10+ years of experience across frontend and backend. across full stack development (frontend, backend, DevOps, and data)
• Strong hands-on expertise in: React, Next.js, TypeScript, Java/Spring Boot, PostgreSQL/Oracle/Snowflake, Docker, Kubernetes
• Experience with enterprise integration patterns (REST/SOAP), CI/CD pipelines, and cloud-native architecture
• Demonstrated ability to mentor engineers and lead technical delivery in a cross-functional environment
• Comfort working within governed, enterprise/regulated environments

What We Offer:

• Challenging projects with opportunities for growth
• Competitive salary and benefits package
• Collaborative and dynamic work environment

Apply Now:

If you're a motivated and experienced Senior Full Stack Developer, we'd love to hear from you! Apply here: digitalservices@celestinfo.com