Senior Full-Stack Software Developer

Pella Corporation•Pella, IA

About The Position

The Senior Full-Stack Software Developer will build applications, integrations, and AI-driven tools to improve the speed and effectiveness of the Customer Engagement Center. The role works across the stack, from an enterprise GraphQL API layer connecting systems to user-facing applications for agents and customers, including LLM-powered chatbots. The developer partners with business stakeholders to turn complex requirements into clear, scalable solutions, mentors developers, and helps establish API and platform standards.

Requirements

At least 5 years of professional software development experience.
Expert proficiency in JavaScript/TypeScript and Node.js.
Strong front-end experience with a modern framework such as React for building responsive, user-facing applications.
Deep experience designing and implementing GraphQL and REST APIs.
Hands-on experience building LLM-based applications, such as customer-facing chatbots or assistants, using LLM APIs such as OpenAI, Anthropic, Azure OpenAI, or AWS Bedrock.
Strong understanding of API architecture, authentication, and authorization.
Hands-on experience with relational databases, including MS SQL, PostgreSQL, and Oracle DB.
Proficiency with Docker for containerization and deployment.
Familiarity with event-driven architecture, such as SNS/SQS or Kafka.
Knowledge of API gateway technologies and microservices architecture.
Ability to explain complex technical concepts clearly to non-technical stakeholders.
Proven track record delivering scalable solutions in enterprise environments.

Nice To Haves

Experience integrating contact center or customer service platforms, such as CRM, telephony, case management, or knowledge bases.
Familiarity with vector databases, embeddings, and LLM observability and evaluation tooling.
Familiarity with CI/CD pipelines, DevOps practices, and cloud platforms such as AWS, Azure, or GCP.
Strong leadership and mentoring skills, with the ability to influence technical direction.

Responsibilities

Design and build full-stack solutions that reduce handle time, automate routine work, and improve the customer and agent experience in the Customer Engagement Center.
Design, build, and deploy user-facing chatbots and conversational assistants using LLMs, including prompt design, retrieval-augmented generation (RAG), tool/function calling, guardrails, and evaluation.
Lead development of the enterprise GraphQL API layer to meet performance, scalability, and security standards.
Partner with business stakeholders and technical teams to understand needs and deliver simple, effective solutions.
Define and enforce API design standards, governance, and best practices.
Mentor mid-level and junior developers, fostering collaboration and technical excellence.
Work with MS SQL, PostgreSQL, Oracle DB, and other data stores to ensure efficient data access and transformation.
Improve developer experience so other teams can integrate with the platform easily.
Take part in architecture discussions on integration patterns and enterprise connectivity.
Drive continuous improvement in CI/CD pipelines, containerization, and deployment.