Top Junior Software Engineer Jobs

The Junior Software Engineer will engage in the software development life cycle, perform hands-on coding, diagnose product issues, and contribute to software deployment.

The Junior Software Engineer will develop and optimize trading systems in C++ and Python, focusing on OS-level performance and real-time application in a collaborative trading environment.

The Junior Software Engineer will develop software, learn Ruby, Rails, and Vue in a supportive environment, and work towards career advancement.

As a Junior Software Engineer at Rokt, you'll design and build innovative ecommerce products, accelerate development using AI, and collaborate on solutions that enhance user experience and drive business growth.

The Junior Software Engineer will develop applications, support software development phases, troubleshoot issues, and document processes, requiring teamwork and communication skills.

As a Junior Front-End Software Engineer, you will develop and enhance web applications, collaborate with teams, and improve data visualization tools supporting national security missions.

The Junior Software Engineer designs and enhances backend services, implements DevSecOps pipelines, and contributes to system architecture while utilizing modern technology stacks.

Support the development, integration, and evaluation of software solutions for RF systems, collaborating with systems engineers and testing capabilities in various environments.

Contribute to developing and modernizing commercial money movement applications by writing, testing, and documenting Java and Node.js code, integrating systems and APIs, optimizing performance, and collaborating with engineers and business stakeholders while learning best practices and supporting deployment in a microservices/Docker/Kubernetes environment.

The role involves developing software solutions for national security, using various programming languages and cloud technologies, while implementing secure DevSecOps practices.

Support sustainment, enhancement, and modernization of mission‑critical front-end applications. Develop and maintain JavaScript-based UIs (AngularJS, Vue.js, Node.js), participate in full SDLC, troubleshoot, deploy, write technical documentation, and collaborate with cross-functional teams under a government prime contract.

Build and deploy agentic, multi-step AI workflows and reusable agent skills; generate production AI images; use AI coding tools daily; develop API integrations (Google Workspace, Notion, Slack, Workable); own projects end-to-end including logging, error handling, and monitoring.

As a Junior Backend Software Developer, you will develop microservices, support cloud migration, analyze user needs, and participate in Agile teams.

Design, implement, test, and maintain simulation models and infrastructure in C++, Java, and Python. Integrate third-party and real-time simulation models, perform systems modeling and analysis, develop supporting tools, and document software. Collaborate with hardware engineers and team members while supporting simulation build and deployment.

Support NASA human spaceflight programs by developing software for spacecraft simulations and integrating with various systems. Requires strong problem-solving skills.

As a Junior Software Developer at Two Six Technologies, you'll support software production, focusing on troubleshooting, security, containerization, and cloud offerings while collaborating with teams to enhance the customer experience.

The Jr Software Developer will deliver technical demonstrations, troubleshoot issues, install and configure software tools, prepare documentation, and travel to client sites for support.

Summer internship on the core 3D Graphics Software Engineering team to develop and enhance pC-Nova. Work with a mentor to design and implement production-level graphics technologies, contributing to shipping products and real-time simulation performance.

Summer internship developing and maintaining C++ radar simulation software (RTK) on Windows/Linux. Work includes design, implementation, integration, testing, documentation, and team collaboration under a mentor. Must be U.S. citizen.

As a Junior Software Engineer, you will develop applications, participate in a team environment, and leverage software development for better results.

Interns work on software and data engineering platforms for DoD/IC customers, supporting CI/CD and DevSecOps, learning cyber operations and network programming, contributing code (Go/Python), and gaining operational experience with microservices, containerization, and secure workflows. Must be US-citizen eligible for Top Secret clearance.

The Junior Software Engineer will develop and maintain software applications, conduct testing, mentor junior team members, and ensure high code quality in an agile environment.

As a Junior Software Developer, you will design and execute software test procedures for satellite systems, implement automated testing frameworks, and validate hardware interactions.

The selected candidate will design, code, test, and maintain complex software applications, provide system maintenance, and assist in software systems programming.

The role involves knowledge of scripting, coding languages, and software testing. Candidates will be trained in specific areas, with a focus on flexibility and learning.