Java Software Developer

Twenty80 LLC; Annapolis (MD); On-site; USD 140,000 - 190,000; Full time

Job summary

Twenty80 LLC in Maryland is seeking a seasoned software engineer with a TS/SCI with FSP clearance to develop APIs, optimize databases, and leverage AWS to deliver mission-critical solutions. You will work across the full SDLC, building robust client- and server-side applications, designing integrations, and translating complex requirements into scalable systems.

The role is fully onsite in the Maryland area (Columbia, Annapolis, Annapolis Junction, Fort Meade) with opportunities to influence

Qualifications

• 7+ years of experience with a technical degree, or
• 11+ years of experience without a technical degree.

Responsibilities

• Develop powerful APIs and optimize backend SQL databases.
• Integrate modern AWS technologies for mission-critical software.
• Work across the full SDLC to build client-side and server-side apps.
• Design seamless integrations and intuitive user experiences.
• Transform complex requirements into scalable solutions.

Skills

Java

JavaScript

Linux

APIs

SQL

Git

Cloud AWS

Python

C#

Angular

React

Vue.js

MongoDB

Spring

OSGi

Education

Bachelor's Degree

Tools

NGINX

Spring

OSGi

Job description

Security Clearance Required: Active TS/SCI with Full Scope Polygraph (FSP)

Develop powerful APIs, optimize backend SQL databases, and integrate modern AWS technologies while building mission-critical software solutions.

In this role, you'll work across the full software development lifecycle (SDLC), using modern web development technologies and programming languages to build robust client-side and server-side applications. You'll design seamless integrations, develop intuitive user experiences, and transform complex technical requirements into scalable, high-impact solutions.

Required Skills

• Core Programming: Strong software development experience using Java and JavaScript.
• Operating Environment: Proven experience developing and working in Linux environments.
• Full-Stack Development: Experience with the Software Development Lifecycle (SDLC), including front-end, back-end, client-side, and server-side development.
• Development Tools: Experience using Git for version control and SQL for database development and querying.
• Integration & Architecture: Experience with API development, system integrations, and UI/UX principles.
• Modern JavaScript Frameworks: Experience with or exposure to Angular, React.js, or Vue.js.
• Cloud Technologies: Familiarity with AWS services, Python, and Microsoft C# to support diverse application architectures.

Experience Requirements

Mid-Level

• 7+ years of experience with a technical degree, or
• 11+ years of experience without a technical degree.

Senior Level

• 14+ years of experience with a technical degree, or
• 18+ years of experience without a technical degree.

Principal Level

• 20+ years of experience with a technical degree, or
• 24+ years of experience without a technical degree.

Preferred Skills

• Experience with MongoDB, Spring, and OSGi.
• Familiarity with Perl, Lua, and configuring or managing NGINX.
• Experience with automation or workflow acceleration frameworks such as Empower.

Position Details

• Active TS/SCI with Full Scope Polygraph (FSP) is required.
• Positions are 100% onsite.
• Most opportunities are located in the Maryland area, including Columbia, Annapolis, Annapolis Junction, and Fort Meade.
• Due to security requirements, all work must be performed at the designated worksite. Remote work is not available.

About the Opportunity

This position supports advanced software engineering, artificial intelligence, and data-driven initiatives for U.S. Government programs. You'll join a highly technical environment focused on delivering innovative, mission-critical solutions while working alongside experienced engineers on complex and impactful projects.