Senior Developer - Common Wealth of KY (App Modernization)

TEK Systems; United States; On-site; USD 97,000 - 138,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k)

Job summary

TEK Systems is seeking a Senior Software Developer to design, build, deploy, and maintain modern full‑stack applications using React on the front end and Node.js on the back end. The role emphasizes secure, scalable, cloud‑native solutions on AWS with serverless patterns such as API Gateway and Lambda.

Senior engineers own features end‑to‑end, contribute to architecture, mentor others, and drive engineering practices like automated testing, CI/CD, security, and observability to ensure production

Qualifications

• Typically 7+ years of professional software development experience.
• Bachelor’s degree in Computer Science, Engineering, or related field.
• Cloud/DevOps certifications are a plus but not required.

Responsibilities

• Design, implement, test, and maintain production-grade full-stack software (React UI + Node.js services).
• Contribute across the full software development lifecycle, including analysis, design, estimation, development, automated testing, CI/CD deployment, and production support.
• Actively participate in code reviews, architecture discussions, and technical decision-making.
• Build and maintain reliable, secure, and performant applications on AWS, including REST/JSON API integrations.
• Implement operability and observability practices (logging, metrics, monitoring) using CloudWatch.
• Collaborate closely with product owners, architects, DevOps, and other engineers to deliver complete solutions.
• Mentor junior and mid‑level developers through code reviews and guidance.
• Contribute to continuous improvement of engineering practices, including automation and testing.

Skills

Full-stack

Node.js

React

AWS

CI/CD

API design

Testing

IaC

Docker

Kubernetes

Git workflows

Mentoring

Education

Bachelor’s degree in Computer Science or related field

Cloud certifications (AWS/Azure/GCP) a plus

Tools

Git

Jenkins

GitHub Actions

Docker

Kubernetes

API Gateway

Terraform

CloudWatch

Job description

Overview

The Senior Software Developer is a hands‑on technical contributor responsible for designing, building, deploying, and maintaining modern full‑stack applications using React on the front end and Node.js (JavaScript/TypeScript) on the back end. This role emphasizes delivering secure, scalable, cloud‑native solutions on AWS, including designing and integrating REST/JSON APIs (often using serverless patterns such as Amazon API Gateway and AWS Lambda) and partnering with cross‑functional teams to deliver high‑quality user experiences and services.

Senior Developers are expected to operate with a high degree of autonomy and ownership across the full SDLC, contribute to architecture and technical decisions, mentor less‑senior engineers, and actively improve delivery, reliability, and operational excellence. They apply strong engineering practices including automated testing, CI/CD‑driven delivery, security best practices (authentication/authorization and least‑privilege access), and observability (logging, metrics, monitoring) to ensure systems are production‑ready and maintainable.

Responsibilities

Core Responsibilities

• Design, implement, test, and maintain production-grade full-stack software (React UI + Node.js services) aligned with business and technical requirements.
• Contribute across the full software development lifecycle, including analysis, design, estimation, development, automated testing, CI/CD‑driven deployment, and production support.
• Actively participate in code reviews, architecture discussions, and technical decision-making, providing clear rationale and trade‑off analysis.
• Build and maintain reliable, secure, and performant applications and services on AWS, including REST/JSON API integrations (often using Amazon API Gateway and AWS Lambda) and secure access patterns.
• Implement operability and observability practices (logging, metrics, monitoring/alerting) and use tools such as Amazon CloudWatch to troubleshoot issues across development, test, and production environments.
• Collaborate closely with product owners, architects, DevOps, and other engineers to deliver complete solutions.
• Mentor junior and mid‑level developers through code reviews, pairing, and technical guidance.
• Contribute to continuous improvement of engineering practices, including automation, CI/CD, testing, and operational maturity.

Technical Profile - Required Strengths

• Full-stack expertise in Node.js (JavaScript/TypeScript), and React
• Demonstrated ability to design clean, maintainable, well‑tested codebases, including strong familiarity with automated testing (unit/integration) and ownership of component‑level test strategy for the systems they build and support.
• Strong understanding of software engineering fundamentals, including:
  • Data structures and algorithms
  • API design and integration
  • Modular and layered architectures
  • Performance and scalability considerations

Application Breadth

• Strong preference for full‑stack capability, including:
  • Backend services (APIs, services, integrations, data access)
  • Front‑end frameworks (React preferred; Angular or similar)
• Alternatively, strong depth in either backend or frontend, combined with solid working knowledge of the adjacent layer to support end‑to‑end delivery.

DevOps & Delivery Practices

• Strong experience with modern DevOps practices, including:
  • CI/CD pipelines
  • Infrastructure as Code (IaC)
  • Automated testing and deployment
  • Observability, logging, and monitoring (e.g., Amazon CloudWatch)
• Familiarity with tools and platforms such as:
  • Git, CI/CD platforms (Azure DevOps, GitHub Actions, Jenkins, etc.)
  • Containers and orchestration (Docker, Kubernetes)
• A mindset focused on operability, reliability, and automation, not just code delivery.

Cloud Platform Experience

• Strong experience in at least one major cloud platform:
  • AWS (preferred), Azure, or GCP
  • Experience designing, deploying, and operating applications in cloud environments, including:
    • Networking, security, and identity concepts
    • Managed services and patterns (e.g., serverless with API Gateway/Lambda, compute, storage, databases)
    • Cost awareness and basic optimization considerations
  • Familiarity with additional clouds is a plus, but depth in one platform is preferred over shallow exposure to many

AI Skills & Tool Usage

• Demonstrated experience using AI‑assisted development tools to improve productivity, quality, and learning (e.g., code generation, refactoring, testing, documentation).
• Basic familiarity with AI‑enabled application patterns, such as:
  • Integrating hosted AI services or APIs
  • Using AI for data processing, search, or automation use cases
• Ability to evaluate AI tools pragmatically, understanding benefits, limitations, and responsible use within enterprise and client contexts.
• Willingness to continuously upskill as AI tooling and platforms evolve

Professional Expectations

• Owns complex and/or ambiguous features end‑to‑end, drives technical decisions within scope, and mentors others through that ambiguity.
• Communicates clearly with both technical and non‑technical stakeholders.
• Comfortable working across multiple projects or domains as GE NA demand shifts.
• Balances delivery speed with code quality, stability, and long‑term maintainability.
• Contributes positively to team culture and knowledge sharing.

Qualifications

Experience & Education

• Typically 7+ years of professional software development experience (or equivalent demonstrated capability).
• Bachelor’s degree in Computer Science, Engineering, or related field preferred, or equivalent practical experience.
• Relevant technical certifications (cloud, DevOps, etc.) are a plus but not required.

***Posting Close Date: 9/30/2026 ***

We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected classification.

• US Salary range:$97,100-$137,500 Potential bonus up to: $10,000

Compensation will be determined based on a variety of factors which may include, but are not limited to, education, experience, skills, and geographic location. As an internal Allegis Employee exploring roles within TEKsystems Global Services, hiring eligibility and maintaining existing ancillary benefits are subject to change with transfer from one role to another. Please reach out to Talent Mobility for specific questions: [e-mail].

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre‑tax and Roth post‑tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long‑term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
• https://www.teksystems.com/en/careers/benefits