Senior Software Development Engineer

8152 DDAT Ireland Technology Ltd; Galway; On-site; EUR 50,000 - 125,000; Full time

Job summary

CVS Health is seeking a Senior Software Engineer to lead the design, development, testing, deployment, and ongoing support of enterprise-grade software applications. You will drive full-stack development with Python, TypeScript/JavaScript, React, and modern backend frameworks, while shaping scalable, secure, AI-enabled solutions in collaboration with product, business, and engineering teams.

You will own RESTful APIs, microservices, cloud-oriented architectures on GKE, Docker, Kubernetes, and

Qualifications

• 8+ years of software development in enterprise-scale environments.
• Strong proficiency in Python and TypeScript/JavaScript with React frontend.
• Experience designing and operating RESTful APIs and microservices at scale.
• Hands-on cloud experience with GKE, Docker, Kubernetes.

Responsibilities

• Design, develop, test, deploy, and support enterprise software applications.
• Architect and operate RESTful APIs and microservices.
• Implement secure patterns including authentication, authorization, and secrets management.
• Lead containerization and CI/CD pipelines.
• Mentor engineers and collaborate with stakeholders.
• Lead integration of LLMs into production applications.

Skills

Python

TypeScript/JavaScript

React

REST APIs

Microservices

Cloud Architecture

Docker

Kubernetes

GKE

CI/CD

GitHub Actions

Jenkins

Agile/Scrum

Education

Bachelor's degree

Tools

PostgreSQL

NoSQL

OAuth2/JWT

Job description

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time.

Position Summary

The Senior Software Engineer will lead the design, development, testing, deployment, and ongoing support of enterprise-grade software applications. This role requires advanced full-stack engineering experience, strong backend and cloud architecture skills, and the ability to deliver scalable, secure, AI-enabled solutions in collaboration with product, business, and engineering stakeholders.

Key Responsibilities

• Design, develop, enhance, and maintain enterprise software applications using Python, TypeScript/JavaScript, React, and modern backend frameworks.
• Architect, build, and operate RESTful APIs and microservices that support scalable, production-grade business capabilities.
• Apply microservice architecture patterns, including service decomposition, inter-service communication, API gateway patterns, and event-driven design.
• Design reliable data models and optimize relational database solutions using PostgreSQL; evaluate NoSQL and vector database options where appropriate.
• Implement secure application patterns, including authentication, authorization, input validation, rate limiting, and secrets management.
• Own containerized deployment practices using Docker, Kubernetes, and GKE, including production-readiness and operational support.
• Build and maintain CI/CD pipelines using GitHub Actions, Jenkins, or comparable platforms.
• Lead practical integration of LLMs into production applications, including prompt engineering, retrieval-augmented generation, embeddings, and model evaluation practices.
• Mentor engineers, guide technical delivery, and partner with business stakeholders to translate requirements into effective technical solutions.

Required Qualifications

• 8+ years of software development experience in enterprise-scale or production environments.
• Strong proficiency in Python and TypeScript/JavaScript; experience with Java is preferred.
• Demonstrated full-stack development capability, including React with TypeScript on the frontend and FastAPI, Spring Boot, or comparable backend frameworks.
• Proven experience designing, developing, and operating RESTful APIs and microservices at scale.
• Strong understanding of microservice architecture patterns, including service decomposition, inter-service communication using REST, gRPC, or message queues, and API gateway patterns.
• Experience implementing event-driven architectures and asynchronous messaging platforms such as Kafka, Pub/Sub, or similar technologies.
• Hands-on database design experience with PostgreSQL, including relational schema design and query optimization; exposure to NoSQL or vector databases is preferred.
• Working knowledge of authentication and authorization patterns, including OAuth2, JWT, and role-based access control.
• Strong understanding of API security best practices, including input validation, rate limiting, and secrets management.
• Experience with Docker and Kubernetes/GKE for containerization and orchestration.
• Experience with CI/CD pipelines using GitHub Actions, Jenkins, or similar platforms, including ownership of the full pipeline lifecycle.
• Hands-on Google Cloud Platform experience with GKE, Cloud Functions, BigQuery, and related services; Azure experience is a plus.
• Experience working in Agile/Scrum development environments.

Preferred Qualifications

• 2+ years of hands-on experience integrating large language models into production applications.
• Practical experience with prompt engineering, retrieval-augmented generation (RAG), and embeddings; familiarity with fine-tuning and model evaluation is preferred.
• Experience with the Anthropic Claude platform, including API usage and Claude Code, or comparable platforms such as OpenAI or Gemini.
• Familiarity with agentic AI patterns and multi-step reasoning workflows.
• Experience building or configuring Model Context Protocol (MCP) servers is strongly preferred.
• Familiarity with logging, tracing, and monitoring practices, including structured logging and distributed tracing.

Education

Bachelor's degree preferred/specialized training/relevant professional qualification.

Pay Range

The typical pay range for this role is: €50,000.00 - €125,000.00

Application Deadline

We anticipate the application window for this opening will close on: 30/09/2026

Our Work Experience

Our Work Experience is the combination of everything that's unique about us: our culture, our core values, our company meetings, our commitment to sustainability, our recognition programs, but most importantly, it's our people. Our employees are self-disciplined, hard working, curious, trustworthy, humble, and truthful. They make choices according to what is best for the team, they live for opportunities to collaborate and make a difference, and they make us the #1 Top Workplace in the area.