Top Entry Level Software Engineer Jobs

Build scalable REST APIs and customer-facing React features for Atlassian’s DX team. The role involves end-to-end feature development, backend-heavy full-stack engineering, collaboration with product and design, shipping code in a distributed environment, and measuring and iterating on feature impact.

Build backend features and REST APIs using Ruby on Rails and SQL. Responsibilities include configuring backend service monitoring, developing CI/CD pipelines, integrating with content management systems, and delivering reliable services end to end. The role involves collaborating with product and design, shipping quality code, measuring impact, and iterating quickly.

Develop and scale the LogScale backend engine using Scala for high-volume distributed event ingestion, querying, storage, and availability. Design and deliver features, improve scalability, write automated tests, monitor production deployments, troubleshoot customer issues, document technical decisions, research technologies, and provide technical leadership through mentoring and code reviews.

Build a high-performance frontend data platform for exploring and analyzing hardware telemetry. Develop React and TypeScript applications, interactive time-series visualizations, data visualization plugins, complex application state management, and LLM-assisted analysis workflows. Collaborate directly with hardware engineers and customers to define interfaces, prototype workflows, demonstrate features, and incorporate feedback into product development.

Build and scale production-grade GenAI services, including MCP Server, MCP Gateway, and AI Agent systems. Responsibilities include end-to-end feature ownership, architecture, implementation, deployment, monitoring, debugging, testing, documentation, and collaboration with product and design teams. The role emphasizes scalable and reliable software, AI-assisted development, security, guardrails, PII filtering, and continuous engineering improvement.

Develop and test secure, modular, high-quality software for Mastercard payment technologies. Contribute across design, development, documentation, testing, maintenance, runtime operations, dependencies, and builds. Apply algorithms, data structures, object-oriented design, and modern programming languages while collaborating effectively in a global Agile environment.

Develops and enhances complex software systems, analytics, visualization tools, and RF signal-processing applications. Integrates software across hardware platforms, reviews and tests components, resolves software issues, and contributes to system design, requirements analysis, software reuse, and COTS/GOTS evaluations. The role supports intelligence and national-security missions using Linux and modern programming languages.

Develop and test avionics, simulation, and environment software for B-1B platforms. Responsibilities include requirements, design, coding, integration, analysis, problem solving, and process improvement within Agile teams supporting warfighter and maintainer capabilities.

Develops and maintains software for flight simulation infrastructure, including simulation tools, subsystem message monitoring, aircraft capability models, and testing environments. Responsibilities include architecture, requirements, algorithms, interfaces, coding, software integration, documentation, research, and Agile collaboration. The role supports Mission Systems engineers and requires programming experience, a bachelor's degree, U.S. Person status, and eligibility for a post-start Secret clearance.

Develop and maintain C++ operational flight and real-time embedded software for the B-1 aircraft. Responsibilities include software design, development, testing, debugging, simulation, systems integration, requirements analysis, documentation, and process improvement. The engineer will work on Agile teams using modern development tools, resolve technical issues, support software and supplier performance, and contribute to high-quality weapon system capabilities. The role requires relocation to Oklahoma City, 10% travel, and eligibility for a U.S. Secret clearance.

Develop and launch scalable full-stack search systems using JavaScript, TypeScript, Python, or Kotlin. Collaborate with engineers and stakeholders, balance delivery speed with system reliability, debug code, participate in code reviews, write tested and extensible software, and contribute to team growth and communication.

Build and enhance large-scale internal platform interfaces using TypeScript and React. Design workflow-driven user experiences, optimize performance, maintain architectural consistency, and improve CI/CD and testing practices. Own portions of the SaaS product, including monitoring and incident resolution. Collaborate with cross-functional stakeholders to deliver business-critical enhancements for investment, sales, operations, and portfolio-management workflows.

Develop and maintain C# and .NET functionality for electric and gas distribution software tools. Responsibilities include feature development, bug fixes, unit and integration testing, peer reviews, CI/CD support, refactoring, documentation, and Scrum participation. The engineer will collaborate with product, QA, and senior developers while responsibly using AI coding assistants and building expertise in modern software engineering practices.

Develop and integrate software for advanced aerospace and defense electronics, including software-defined radios, avionics, and electronic warfare systems. Responsibilities include coding, debugging, software and hardware integration, regression testing, requirements testing, and participation across the software lifecycle. The role includes project rotations, mentorship, technical training, and collaboration in a hybrid work environment.

Develop, test, support, and troubleshoot production software for a TLD registry platform. Collaborate with experienced engineers to build scalable, reliable solutions using cloud technologies, databases, web applications, services, and background systems. Participate throughout the software development lifecycle, provide on-call support, identify root causes, and improve system performance and maintainability while supporting global business operations.

Develop, test, deploy, and support Java applications and services for Mastercard’s distributed fraud decisioning platform. Responsibilities include translating requirements into maintainable software, designing high-performance distributed systems, writing automated tests, applying secure coding practices, optimizing performance, troubleshooting production issues, and contributing to monitoring, observability, Agile delivery, code reviews, and operational readiness.

Develops, integrates, tests, maintains, and troubleshoots non-embedded software for P-8A mission systems. Translates customer requirements into designs, architectures, algorithms, and interfaces; supports system integration, user issues, software processes, supplier performance, and lifecycle documentation. The role is fully onsite and requires an active U.S. Secret clearance, U.S. citizenship, and Java experience.

Develop and operate the Open DEX platform, enterprise API integrations, internal tools, automated workflows, and AI-assisted applications. Build secure, containerized cloud services and infrastructure using Python, Kubernetes, AWS, CI/CD, and infrastructure-as-code technologies. Diagnose production incidents, improve performance, establish reusable engineering standards, and collaborate with security, identity, infrastructure, and engineering teams.

Build and ship end-to-end features across React frontends and TypeScript/Node.js backends, including data models, APIs, interfaces, migrations, and tests. Collaborate in design and code reviews, use AI coding agents responsibly, and handle protected health information with authentication, authorization, and audit logging. The role offers mentorship, increasing ownership, and a path from Associate Software Engineer through senior technical levels.

Develops, tests, deploys, monitors, and supports secure, scalable enterprise applications using Java, modern frontend frameworks, AWS, and cloud-native technologies. Responsibilities include requirements analysis, software design, code reviews, automated testing, performance optimization, security remediation, production troubleshooting, observability, and reliability improvements. Collaborates with product owners, business partners, and engineering teams while following enterprise architecture, compliance, and software development standards.

Develops and deploys end-to-end software solutions for government customers, including system design, prototyping, application development, data integration, and cloud-based deployments. Collaborates with technical and nontechnical stakeholders, rapidly iterates based on user feedback, and solves complex operational problems using Palantir platforms and modern technologies. Requires or supports obtaining a Top Secret security clearance and willingness to travel as needed.

Build and maintain frontend web applications for internal and public use. Responsibilities include gathering requirements, collaborating with team leads and designers, implementing high-fidelity user experiences, researching UI/UX patterns, proposing technical solutions, and coding, testing, and deploying modern web applications using JavaScript or TypeScript and frontend frameworks.

Develop, test, integrate, troubleshoot, and architect software components and gaming applications. Resolve customer and employee technical issues, provide system support, improve procedures, research technologies, and ensure software quality. Collaborate with engineers on architecture and coding standards, mentor team members, and review technical work. The role also requires expertise in Microsoft BI, SQL Server, Tableau, ETL, data warehousing, .NET, C#, RabbitMQ, and NGINX.

Develop and maintain web-based applications and back-office systems within the VestmarkONE financial services suite. Responsibilities include building scalable features, supporting performance requirements, collaborating on a distributed Agile Scrum team, and contributing to portfolio trading, proposal generation, and investor portal applications.

Develop high-performance research platforms and tools that bring trading strategies to life. Work in small teams to design, build, and deploy resilient systems using distributed computing, NLP, and machine learning to solve large-data problems in finance.