Software Developer III

EKN Engineering•Irvine, CA

About The Position

EKN Engineering is seeking a Software Developer III to develop and maintain client-facing applications. The role owns full-stack development and application operations, including responding to incidents and maintaining established service levels. The successful candidate brings technical expertise, a product mindset, ownership, and a hands-on approach to engineering best practices, while solving problems in collaboration with technical teams, clients, and management. The position leads the technical design and delivery of features and services, builds and operates full-stack SaaS applications, and contributes to architecture, security, performance, testing, observability, and deployment practices. It also involves mentoring engineers, partnering with product managers and designers, and participating in a scheduled after-hours on-call rotation. EKN Engineering describes itself as a fast-growing civil engineering and technology consulting company. It says its work supports safer utilities and solutions that benefit communities and the environment. The company highlights professional growth and personal development, along with medical, dental, vision, and life insurance; a 401(k) match; flexible spending accounts; employee discounts; office meals and snacks; employee events; and wellness resources.

Requirements

At least 6 years of relevant software development experience, including full-stack web application development.
Experience leading technical design, authoring design documents, making architecture decisions, and mentoring other engineers.
Proficiency in ReactJS.
Experience with TypeScript, JavaScript, and Node.js, including frameworks such as NextJS, TanStack Start, and NestJS.
Experience with message queuing technologies such as Kafka, RabbitMQ, or SQS.
Experience with Redis or similar caching technologies.
Experience with API communication patterns such as REST APIs, WebSockets, and RPC.
Experience with system architecture, application design, database design, and query optimization.
Experience using AI-assisted development tools, such as Claude Code, for software design, implementation, testing, debugging, and documentation.
Experience developing applications backed by relational databases such as PostgreSQL.
Working knowledge of secure coding practices, including OWASP Top 10, and authentication and authorization patterns such as OAuth 2.0 and OpenID Connect (OIDC).
Experience implementing observability, including structured logging, metrics, and alerting, using tools such as Sentry or Datadog.
Experience with AWS; Azure or GCP experience is also considered.
Experience with DevOps practices and tools such as Docker, Kubernetes, and CI/CD.
Knowledge of microservices architecture.
Experience with automated testing frameworks.
Agile development process experience.
Strong verbal and written communication skills.
Self-driven team player able to work independently and multitask.
Proven record of setting and meeting project deadlines.

Responsibilities

Own the technical design of features and services from concept through delivery, including writing design documents and making architecture decisions.
Design, build, and maintain full-stack SaaS applications across front-end, back-end, and data layers.
Use AI-assisted development tools responsibly, verifying AI-generated code through automated testing and code review.
Evaluate emerging technologies and recommend adoption when they address a defined problem.
Identify and prioritize technical debt; drive refactoring and build-versus-buy decisions.
Write and maintain automated unit, integration, and end-to-end tests.
Troubleshoot issues across the stack, lead incident response, and conduct post-incident reviews.
Mentor junior and mid-level engineers through pairing, code review, and technical guidance.
Ensure application performance and responsiveness, including database design and query optimization.
Apply secure coding practices, including OWASP Top 10 guidance, and enforce them through design and code review.
Design and implement authentication and authorization for client-facing applications.
Manage third-party dependencies, remediate vulnerabilities, and build in accordance with applicable security and compliance requirements.
Build, deploy, and operate containerized services on Kubernetes through CI/CD pipelines.
Implement logging, metrics, and alerting to detect and resolve issues before they affect customers.
Participate in a scheduled on-call rotation for after-hours production support.
Partner with product managers and designers to translate customer needs into technical solutions, define scope, estimate effort, and plan delivery.
Protect high-profile, security-sensitive customer data by following established data-handling practices.
Adhere to company policies.
Support adjacent technical teams on cross-functional initiatives.
Perform other duties as assigned.

Benefits

100% company-paid medical, dental, vision, and life insurance.
401(k) with dollar-for-dollar company match on contributions.
Flexible Spending Account for qualified healthcare and dependent care expenses.
Employee discounts through BenefitsHub, including travel, rental cars, hotels, and theme parks.
Monthly catered lunches and daily office snacks.
Employee engagement and wellness events and activities, including hiking outings, summer barbecues, sports games, holiday celebrations, and team-building days.
JOYA Health Membership with skin health and wellness benefits, including complimentary facials or peels, aesthetic service credits, priority skin cancer screenings, teledermatology services, and skincare discounts.
Discounted gym memberships through One Pass.
Mental health and self-care tools through AbleTo and Calm.
Monthly rewards for healthy activities through Rally.
Professional growth and personal development support.