Software Developer – WEAP Platform

SEI — Stockholm Environment Institute

. Co-lead the full development lifecycle of the WEAP software platform, including architecture, design, implementation, testing, documentation, and release .

Posted 10/3/2026full-timeDavis • California • United StatesMid-LevelSenior💰 $90,000 - $135,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in software engineering, particularly in developing and maintaining complex codebases, with a strong focus on AI-assisted development tools and workflows. Proficient in integrating diverse datasets and ensuring the security and integrity of software solutions in interdisciplinary and international contexts.

Highest-signal resume keywords

Software EngineeringAI-Assisted DevelopmentData EngineeringDelphi/Object PascalEnvironmental Modeling

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentEnd-to-End Application DevelopmentAPIsData ProcessingScientific ComputingNumerical ComputingCloud-Based WorkflowsGISUser Interface DesignAnalytical Functions

Soft Skills

Analytical SkillsProblem-SolvingCommunication SkillsOrganizational SkillsTeam Collaboration

Tools & Technologies

WEAP Software PlatformAI-Assisted ToolsWindows Application DevelopmentGeospatial Data ProcessingModeling Workflows

Certifications & Qualifications

Computer Science Degree

Industry Keywords

Water ResourcesEnvironmental SystemsHydrologic ModelingSustainabilityIntegrated Water Resources Models

Tech Stack

Tools & technologies

CloudDelphiC++

About the role

Key responsibilities & impact

Co-lead the full development lifecycle of the WEAP software platform, including architecture, design, implementation, testing, documentation, and release
Develop modeling tools, user interfaces, APIs, data processing workflows, and analytical functions
Develop and evaluate AI-assisted functionality for constructing, troubleshooting, documenting, interpreting, and analyzing WEAP models
Collaborate with researchers and modelers to translate scientific and policy needs into robust software solutions
Guide and support integration of hydrologic, climate, economic, geospatial, and environmental datasets into modeling workflows
Support and grow the international WEAP user community through technical engagement and collaborative problem solving
Lead the security, integrity, and responsible stewardship of WEAP software and digital assets
Apply secure software-development practices, address vulnerabilities, manage access and dependencies, and conduct due diligence on technologies and third-party services
Communicate technical concepts to technical and non-technical audiences
Maintain and evolve the WEAP website and online user resources
Support the platform’s transition to cloud-based services

Requirements

What you’ll need

Excellent software engineering and programming skills, including experience developing and maintaining substantial, long-lived codebases
End-to-end desktop application development from architecture and UI design through implementation, testing, documentation, and release
Ability, wisdom and interest in applying AI-assisted development tools and workflows
Excellent analytical and problem-solving skills
Ability to address risks related to software architecture, data handling, access controls, third-party dependencies, licensing, source code, and digital assets
Excellent verbal and written communication skills
Strong organizational and time management skills; ability to manage multiple priorities and meet deadlines
Ability to work effectively in interdisciplinary teams and international environments
Interest in sustainability, water resources, and environmental systems
Highly preferred: Delphi/Object Pascal, or strong experience with compiled, statically typed languages such as C# or C++
Native Windows application development
Scientific or numerical computing
AI-assisted software development tools and workflows
Valuable: GIS and geospatial data processing
APIs and cloud-based workflows
Data engineering and visualization
Environmental, hydrologic, or systems modeling platforms
Experience contributing to or using integrated water resources models or decision support tools
Required: A computer science degree with 5+ years of relevant professional experience in software development, scientific computing, or modeling systems
Must be a U.S. Citizen or Green Card (Permanent Resident Card) holder
Applications should be written in English

Benefits

Comp & perks

Health insurance
Dental insurance
Vision insurance
5% retirement match
Paid parental and family medical leave after one year of employment
Flexible work schedules
10 holidays per year
20 days of vacation per year
10 days of sick leave per year
Up to $5,000 reimbursement for moving expenses