Software Engineer-Mid-Level

Overview

Environmental Science Associates (ESA) is a 100% employee-owned environmental consulting firm. We plan, design, permit, mitigate, and restore for projects across our communities, infrastructure systems, open spaces, and wildlands. We are 50 years strong in 21 offices across California, the Pacific Northwest, and the Southeastern United States.

ESA is looking for a Mid-Level Software Engineer with a minimum of 5–10 years of experience to join our Corporate Technology Services AI Development Team, based in Portland, Oregon. This is a hybrid position that supports conducting most work from home or office locations. ESA’s agile teams have the option to meet in person a few times a month for sprint planning and retrospectives, and may choose to work together in ESA’s office a few days a week.

Ideally, candidates should be located in the vicinity of Portland and available to travel occasionally to our Portland office. The role involves back-end and front-end development as part of an Agile software development team and applying critical thinking and problem-solving skills to innovative projects.

This mid-level position is part of our Corporate Technology team, where you will work closely with Product Owners, UX designers, data specialists, and fellow engineers to design, build, and evolve modern, AI-enabled applications that support client-facing environmental solutions and internal operational excellence. Your day-to-day work will involve developing scalable web applications and services using modern SPA frameworks and cloud-native architectures, integrating APIs and data pipelines, and applying best practices for testing, security, and deployment.

You will contribute to applications that leverage large language models, natural language interfaces, analytics, and automation to make complex environmental data more accessible, actionable, and impactful.

You will help prototype and product ionize AI-driven features using contemporary AI development tools and techniques, collaborate on data-intensive solutions built on platforms such as Databricks, and participate in iterative delivery informed by real user feedback. You will think systemically about performance, reliability, and maintainability and translate product intent into robust technical solutions that advance ESA’s technology strategy.

• You are a growth-oriented, early- to mid-career software engineer motivated by building modern, production-grade applications and expanding skills in AI-enabled and data-driven development.
• You bring several years (minimum
  5) of professional experience contributing to medium- to large-scale software systems, including APIs, user interfaces, and data-backed features in collaborative teams.
• You hold a bachelor’s degree in computer science or a related field, or possess equivalent practical experience delivering contemporary software solutions.
• You are comfortable across the full application stack, understanding how front-end, back-end, and data components come together to support scalable, user-facing applications.
• You have experience collaborating with UX designers and Product Owners, translating design concepts into intuitive, high-quality user interfaces, and applying core design principles for clarity, usability, and trust—especially in data- and AI-informed interfaces.
• You are proficient in modern web development including HTML, CSS, and JavaScript/Type Script, with experience building single-page applications using contemporary frameworks such as Angular or similar SPA technologies.
• You have back-end development experience with technologies such as C#, .NET Core, SQL, Docker, and API-driven architectures, and an interest in applying these skills to create innovative products and services.
• You have exposure to AI-enabled development, such as integrating large language model APIs, Python, pyspark, RAG, Lang Chain/Lang Graph, MCP, embeddings and search, or collaborating with data or ML specialists.
• You are experienced in collaborative software development practices, including Git/Git Hub, code reviews, and contributing to coding standards and engineering best practices.
• You communicate clearly and…