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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** QCS, INC. - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $75,000.0 - $120,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Cloud Computing, Code Review, Continuous Integration, Data Security, Relational Databases, Amazon DynamoDB, Github, Infrastructure as a Service (IaaS), PostgreSQL, Node.Js, Object-Oriented Software Development, QuickBooks (Software), Systems Integration, TypeScript, Enterprise Software Applications, ReactJS, Retrieval-Augmented Generation, Backend, Kotlin, Kubernetes, Information Technology, Api Design, Xero (Accounting Software), Restful APIs, Terraform, Workday, Service Stack, Legacy Systems, Microservices - **Published:** September 19, 2026 - **Apply:** https://www.builtincolorado.com/job/senior-software-engineer/11263343?handler=ApplyRedirect ## About the Role * Minimum of six years of professional experience building and supporting production software, including substantial full-stack development responsibility. * Demonstrated experience independently owning complex or ambiguous technical problems from definition through production delivery. * Demonstrated experience delivering AI or large language model capabilities to production, including experience with agents, retrieval-augmented generation, evaluations, and pragmatic model selection. * Advanced proficiency with TypeScript, JavaScript, React, Node.js, relational database design, API design, and PostgreSQL. * Experience with cloud-native development and operations, including containers, Kubernetes, and CI/CD practices. * Ability to communicate technical concepts and tradeoffs clearly to technical and nontechnical stakeholders. * Ability to work effectively with customers and internal partners in a distributed work environment. * Must be based in and authorized to work in the United States. PREFERRED QUALIFICATIONS: * Experience with Rust, Tokio, or Actix, or demonstrated ability and willingness to learn Rust. * Experience with browser automation, browser extensions, Manifest V3, proxy technologies, or network filtering. * Experience working with distributed or India-based engineering teams. * Experience in education technology or in secure, regulated, restricted, or air-gapped environments. * Experience mentoring engineers or assuming technical leadership responsibilities. OTHER SKILLS / ABILITIES: * Strong analytical, problem-solving, and decision-making skills. * Ability to balance product outcomes, user needs, security, reliability, and delivery priorities. * Ability to work independently, manage competing priorities, and exercise sound judgment with limited oversight. * Collaborative approach, professional communication style, and commitment to documentation and knowledge sharing. * Interest in expanding access to education and economic opportunity through technology. PHYSICAL DEMANDS: * Ability to remain in a stationary position and work at a computer for extended periods during the workday. * Frequent keyboarding and use of standard computer and office equipment. * Ability to communicate and exchange information with coworkers, customers, and other stakeholders through virtual meetings, telephone, and written channels. * Near-vision ability sufficient to review detailed information on computer screens and in technical documentation. ## Description Senior full-stack engineer responsible for architecting, developing, deploying, monitoring, and supporting production capabilities across a React, Node.js, PostgreSQL, Rust, and Azure Kubernetes platform. The role includes delivering AI and LLM features, owning complex technical initiatives, improving reliability and security, contributing to architecture and engineering standards, partnering with stakeholders, and mentoring engineers. The summary above was generated by AI The Senior Software Engineer is responsible for designing, developing, delivering, and supporting complex capabilities across the iT1 Nucleos AchieveDXP platform. This position serves as a senior individual contributor with broad full-stack ownership and is accountable for translating ambiguous business and technical requirements into secure, reliable, production-ready solutions. The role supports the continued scale of a digital experience platform used by education, workforce, and justice-sector programs and is expected to expand in technical scope, mentorship, and leadership responsibility as the engineering organization grows. Essential Functions: * Design, develop, test, deploy, and support production features across the full technology stack, including a React and TypeScript front end, Node.js and Express APIs, PostgreSQL, a Rust network-proxy layer, and the AchieveDXP content-integration framework. * Own significant platform components and technical initiatives from architecture and design through implementation, deployment, monitoring, reliability, and ongoing improvement. * Develop and operationalize AI-enabled capabilities, including large language model features, agentic workflows, retrieval-augmented generation, evaluations, model selection, guardrails, and secure data-handling patterns. * Maintain secure and reliable services for multi-tenant, per-facility deployments in Azure Kubernetes environments using technologies such as Helm, Terraform, ArgoCD, containers, and CI/CD pipelines. * Contribute to architecture decisions, engineering standards, code reviews, testing practices, technical documentation, and the identification and resolution of platform risks. * Partner with product, implementation, customer-facing, and engineering stakeholders to clarify requirements, explain technical tradeoffs, and deliver solutions that address user and business needs. * Participate in the redesign and continued scaling of AchieveDXP to support increased usage and expansion into adult education and workforce development programs. * Mentor engineers, share technical knowledge, and help strengthen a distributed, high-trust engineering culture. * Perform other duties and responsibilities as assigned., Design and implement backend services, modernize legacy systems into microservices, ensure strong testing and production observability, and collaborate with Product and Engineering teams. The role requires independent project ownership, strong system design, AI-assisted development using tools such as Claude or Cursor, effective communication with nontechnical stakeholders, and adaptability in an ambiguous, fast-changing environment. Top Skills: ClaudeCursorDatadogJavaKotlinMicroservicesRelational DatabasesSplunkSQLTerraform, Toast, Build and optimize automated release engineering systems, including CI/CD pipelines, build and deployment tooling, and AWS cloud infrastructure. Ensure software delivery quality, security, compliance, and reliability. Lead complex projects, participate in on-call support, mentor teammates, and promote technical excellence. The role uses Go, Java/Kotlin, TypeScript, GitHub Actions, PostgreSQL, DynamoDB, Backstage, AWS, and AI development tools. 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