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Job Details

Skills

Finance
Workflow
User Experience
RESTful
Software Maintenance
Collaboration
Quality Assurance
Testing
Emerging Technologies
Distribution
Cloud Computing
Fluency
Roadmaps
Mentorship
IT Management
Open Source
Legacy Systems
C#
.NET
Java
React.js
UI
SQL
Relational Databases
Writing
Git
Version Control
Bitbucket
GitHub
Continuous Integration
Continuous Delivery
Agile
Field Engineering
Computer Science
Microsoft Certified Professional
Servers
Entity Framework
Object-relational Mapping
Artificial Intelligence
Command-line Interface
Amazon Lambda
Amazon Web Services
API
Elasticsearch
SSO
SAML
OAuth
Authentication
C++
XML
JSON
Atlassian
JIRA
Confluence

Finance
Workflow
User Experience
RESTful
Software Maintenance
Collaboration
Quality Assurance
Testing
Emerging Technologies
Distribution
Cloud Computing
Fluency
Roadmaps
Mentorship
IT Management
Open Source
Legacy Systems
C#
.NET
Java
React.js
UI
SQL
Relational Databases
Writing
Git
Version Control
Bitbucket
GitHub
Continuous Integration
Continuous Delivery
Agile
Field Engineering
Computer Science
Microsoft Certified Professional
Servers
Entity Framework
Object-relational Mapping
Artificial Intelligence
Command-line Interface
Amazon Lambda
Amazon Web Services
API
Elasticsearch
SSO
SAML
OAuth
Authentication
C++
XML
JSON
Atlassian
JIRA
Confluence

Summary

*** CANDIDATES MUST CURRENTLY LIVE IN COMMUTABLE DISTANCE OF BALTIMORE, MD ***

*** THIS IS A FULL-TIME POSITION. CONSULTANTS WILL NOT BE CONSIDERED ***

This position is HYBRID with in office a minimum of 2 days/week.

Our client is looking for a sharp, motivated full-stack engineer. You won't get lost in a sprawling org chart or buried in meetings. You'll be part of a small team of top performers who own their work end-to-end, ship things that matter, and push each other to grow.

Here's what makes this role different:

Design and ship production-grade REST APIs at the core of our platform strategy
Contribute to open-source MCP servers and CLI tooling with real external reach
Work in a purposeful, well-supported stack: C# .NET Core + React + AWS
Bring your curiosity about AI/LLM and agentic frameworks to a team actively building in that space (we use Claude Code daily)
Do it all in service of a mission that genuinely improves people's financial lives

Job Overview

The Mid-Level Software Engineer (Full-Stack) will play a key role in building and evolving the product ecosystem. Operating with a high degree of autonomy within a supportive mentor/mentee relationship with their Technical Lead, this engineer will be instrumental in designing and delivering robust REST APIs, contributing to agentic tooling, and advancing workflow capabilities and user experience for their customers. You will be part of a small team of top performers who are passionate about our core values and excited about our mission.

What you will do | Most important responsibilities of this role

REST API Development - Design, build, and maintain production-grade REST APIs that serve as the foundation of company's API-first strategy.
Agentic & Developer Tooling - Contribute to the development and release of Model Context Protocol (MCP) servers and CLI tooling designed to help customers rapidly integrate and adopt the company's API.
Full-Stack Feature Development - Develop and maintain full-stack features using C# .NET Core on the backend and React on the front end, ensuring high quality across approximately 75% backend/API and 25% front-end work.
Software Maintenance & Iteration - Maintain and enhance legacy software systems while contributing to new feature development, ensuring sustained performance and alignment with business needs.
Agile Collaboration - Work closely within the Engineering/Product organization in an agile environment, collaborating with product managers, senior engineers, and the Technical Lead to deliver high-quality solutions.
Quality Assurance & Testing - Write and execute unit tests to ensure code stability, reliability, and performance.
Continuous Learning - Stay current with emerging technologies - including AI/LLM tooling, agentic frameworks, and cloud-native development practices - and bring forward innovative approaches to product and tooling challenges.

How you will do it | The ideal hire will...

Backend & API Excellence - Leverage deep expertise in C# .NET Core (and/or comparable OOP languages such as Java) to build reliable, maintainable backend services and REST APIs integrated with SQL relational databases.
Open-Source Developer Experience - Contribute to the design and distribution of MCP servers and CLI tools as open-source software, enabling external customers to accelerate their adoption of API platform.
Cloud Fluency - Work confidently within AWS environments - navigating AWS products, services, and tooling to troubleshoot issues and support operational needs.
Version Control & CI/CD Awareness - Use Git-based version control tools (Bitbucket, GitHub, or similar) effectively for collaborative, team-based development, with an understanding of CI/CD concepts sufficient to identify and help resolve pipeline issues.
AI/LLM Orientation - Bring curiosity and practical experience with AI/LLM technologies - whether in building AI-powered features or integrating LLM capabilities into software products - to help drive agentic roadmap forward. Our engineering team actively uses Claude Code.
Autonomous Yet Collaborative - Thrive in a high-autonomy, mentor/mentee dynamic - taking ownership of work while leveraging the Technical Lead and senior team members for guidance and growth.

Requirements

Essential Functions:

As a Mid-Level Software Engineer, Full-Stack, you will:

Design and develop REST APIs and backend services
Build and contribute to open-source MCP servers and CLI tooling
Develop and maintain front-end features using React (~25% of role)
Work as part of an agile, cross-functional engineering/product team
Write and maintain unit tests
Troubleshoot and resolve issues across AWS environments and CI/CD pipelines
Maintain and improve legacy software systems
Participate in code reviews and contribute to a culture of engineering excellence

Required Education and Experience

3-5 years of experience as a software engineer
Experience with C# .NET Core development (OOP languages such as Java considered)
Experience developing and deploying REST APIs
Experience with React and front-end UI development
Experience with SQL and relational databases
Experience writing Unit Tests
Familiarity with AWS products and tools (troubleshooting and navigation)
Experience with Git-based version control (Bitbucket, GitHub, or similar) in a collaborative team environment
Conceptual understanding of CI/CD pipelines and the ability to troubleshoot pipeline issues
Experience working in an Agile development environment
Bachelor's degree in a technical field (Engineering, Computer Science, or equivalent)

Additional/Preferred Experience would include.

Experience building or working with Model Context Protocol (MCP) servers - strong plus
Experience with Entity Framework or similar ORM frameworks - strong plus
Experience with AI/LLM integration - either building AI-powered software or delivering AI-enabled product features - strongly encouraged
Experience developing CLI tooling (framework agnostic)
Familiarity with AWS Lambda and AWS API Gateway
Experience with OpenSearch or Elasticsearch
Experience with DataDog or similar observability platforms
Familiarity with SSO, SAML, and/or OAuth authentication protocols
Experience with C++
Experience coding in a secure environment
Experience with XML/JSON
Experience with Atlassian tools (Jira, Confluence)
Experience in a start-up environment

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 80184445
Position Id: 6c832a1706ed4dde86a96fac9e66ff96
Posted 30+ days ago

Job Details

Skills

Finance
Workflow
User Experience
RESTful
Software Maintenance
Collaboration
Quality Assurance
Testing
Emerging Technologies
Distribution
Cloud Computing
Fluency
Roadmaps
Mentorship
IT Management
Open Source
Legacy Systems
C#
.NET
Java
React.js
UI
SQL
Relational Databases
Writing
Git
Version Control
Bitbucket
GitHub
Continuous Integration
Continuous Delivery
Agile
Field Engineering
Computer Science
Microsoft Certified Professional
Servers
Entity Framework
Object-relational Mapping
Artificial Intelligence
Command-line Interface
Amazon Lambda
Amazon Web Services
API
Elasticsearch
SSO
SAML
OAuth
Authentication
C++
XML
JSON
Atlassian
JIRA
Confluence

Finance
Workflow
User Experience
RESTful
Software Maintenance
Collaboration
Quality Assurance
Testing
Emerging Technologies
Distribution
Cloud Computing
Fluency
Roadmaps
Mentorship
IT Management
Open Source
Legacy Systems
C#
.NET
Java
React.js
UI
SQL
Relational Databases
Writing
Git
Version Control
Bitbucket
GitHub
Continuous Integration
Continuous Delivery
Agile
Field Engineering
Computer Science
Microsoft Certified Professional
Servers
Entity Framework
Object-relational Mapping
Artificial Intelligence
Command-line Interface
Amazon Lambda
Amazon Web Services
API
Elasticsearch
SSO
SAML
OAuth
Authentication
C++
XML
JSON
Atlassian
JIRA
Confluence

Summary

Design and ship production-grade REST APIs at the core of our platform strategy
Contribute to open-source MCP servers and CLI tooling with real external reach
Work in a purposeful, well-supported stack: C# .NET Core + React + AWS
Bring your curiosity about AI/LLM and agentic frameworks to a team actively building in that space (we use Claude Code daily)
Do it all in service of a mission that genuinely improves people's financial lives

REST API Development - Design, build, and maintain production-grade REST APIs that serve as the foundation of company's API-first strategy.
Agentic & Developer Tooling - Contribute to the development and release of Model Context Protocol (MCP) servers and CLI tooling designed to help customers rapidly integrate and adopt the company's API.
Full-Stack Feature Development - Develop and maintain full-stack features using C# .NET Core on the backend and React on the front end, ensuring high quality across approximately 75% backend/API and 25% front-end work.
Software Maintenance & Iteration - Maintain and enhance legacy software systems while contributing to new feature development, ensuring sustained performance and alignment with business needs.
Agile Collaboration - Work closely within the Engineering/Product organization in an agile environment, collaborating with product managers, senior engineers, and the Technical Lead to deliver high-quality solutions.
Quality Assurance & Testing - Write and execute unit tests to ensure code stability, reliability, and performance.
Continuous Learning - Stay current with emerging technologies - including AI/LLM tooling, agentic frameworks, and cloud-native development practices - and bring forward innovative approaches to product and tooling challenges.

How you will do it | The ideal hire will...

Backend & API Excellence - Leverage deep expertise in C# .NET Core (and/or comparable OOP languages such as Java) to build reliable, maintainable backend services and REST APIs integrated with SQL relational databases.
Open-Source Developer Experience - Contribute to the design and distribution of MCP servers and CLI tools as open-source software, enabling external customers to accelerate their adoption of API platform.
Cloud Fluency - Work confidently within AWS environments - navigating AWS products, services, and tooling to troubleshoot issues and support operational needs.
Version Control & CI/CD Awareness - Use Git-based version control tools (Bitbucket, GitHub, or similar) effectively for collaborative, team-based development, with an understanding of CI/CD concepts sufficient to identify and help resolve pipeline issues.
AI/LLM Orientation - Bring curiosity and practical experience with AI/LLM technologies - whether in building AI-powered features or integrating LLM capabilities into software products - to help drive agentic roadmap forward. Our engineering team actively uses Claude Code.
Autonomous Yet Collaborative - Thrive in a high-autonomy, mentor/mentee dynamic - taking ownership of work while leveraging the Technical Lead and senior team members for guidance and growth.

Requirements

Essential Functions:

As a Mid-Level Software Engineer, Full-Stack, you will:

Design and develop REST APIs and backend services
Build and contribute to open-source MCP servers and CLI tooling
Develop and maintain front-end features using React (~25% of role)
Work as part of an agile, cross-functional engineering/product team
Write and maintain unit tests
Troubleshoot and resolve issues across AWS environments and CI/CD pipelines
Maintain and improve legacy software systems
Participate in code reviews and contribute to a culture of engineering excellence

Required Education and Experience

3-5 years of experience as a software engineer
Experience with C# .NET Core development (OOP languages such as Java considered)
Experience developing and deploying REST APIs
Experience with React and front-end UI development
Experience with SQL and relational databases
Experience writing Unit Tests
Familiarity with AWS products and tools (troubleshooting and navigation)
Experience with Git-based version control (Bitbucket, GitHub, or similar) in a collaborative team environment
Conceptual understanding of CI/CD pipelines and the ability to troubleshoot pipeline issues
Experience working in an Agile development environment
Bachelor's degree in a technical field (Engineering, Computer Science, or equivalent)

Additional/Preferred Experience would include.

Experience building or working with Model Context Protocol (MCP) servers - strong plus
Experience with Entity Framework or similar ORM frameworks - strong plus
Experience with AI/LLM integration - either building AI-powered software or delivering AI-enabled product features - strongly encouraged
Experience developing CLI tooling (framework agnostic)
Familiarity with AWS Lambda and AWS API Gateway
Experience with OpenSearch or Elasticsearch
Experience with DataDog or similar observability platforms
Familiarity with SSO, SAML, and/or OAuth authentication protocols
Experience with C++
Experience coding in a secure environment
Experience with XML/JSON
Experience with Atlassian tools (Jira, Confluence)
Experience in a start-up environment

Dice Id: 80184445
Position Id: 6c832a1706ed4dde86a96fac9e66ff96
Posted 30+ days ago

Sr. Full Stack UI/UX Software Engineer

Washington, District of Columbia

•

Today

CSSI is seeking a highly skilled Senior Full UI/UX Stack Software Engineer to support the design, development, modernization, integration, and maintenance of mission-critical applications supporting transportation and operational safety programs. The successful candidate will leverage modern web technologies, cloud-native architectures, and software engineering best practices to develop scalable solutions that enhance operational performance and decision-making. The role requires strong experien

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