Back End Software Engineer – Senior

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When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We’ve got what you’re looking for.

Job Description:

Back-End Software Engineer, Senior – Full Time

Join Us in Powering the Future of UI/UX within Cyberspace

We are seeking a Senior Back-End Software Engineer to design and optimize the core infrastructure behind advanced AI-powered applications. This role offers an opportunity to work on cutting-edge integration projects, developing robust, scalable, and high-performance back-end solutions that support seamless data processing and intelligent decision-making. If you have a passion for building efficient, secure, and scalable server-side architectures and enjoy collaborating with top-tier engineers, data scientists, and AI specialists, this is the role for you.

Job Description:

Parsons is looking for an amazingly talented Senior Back-End Software Engineer to join our team! In this role, you will lead the back-end development of advanced systems, focusing on full life-cycle software design, implementation, optimization, and deployment. You will work alongside multidisciplinary teams to develop scalable, high-performance software solutions supporting mission-critical applications.

This position allows for a hybrid schedule but requires candidates to be local to the MD or Northern VA/DC Metro area.

What You'll Be Doing:

• Design, develop, and maintain scalable, high-performance back-end services and APIs.
• Optimize database performance, data modeling, and processing for large-scale applications.
• Enhance existing back-end architecture to improve system responsiveness, security, and scalability.
• Collaborate with front-end engineers, UX designers, system architects, and other stakeholders.
• Implement microservices-based architectures using containerization (Docker/Kubernetes).
• Develop and maintain CI/CD pipelines for automated testing and deployment.
• Ensure robust authentication, authorization, and security best practices in all back-end services.
• Conduct peer code reviews, implement unit and integration testing, and ensure documentation for all back-end components.
• Utilize Agile/Scaled Agile Framework (SAFe) methodologies for efficient software development.

What Required Skills You'll Bring:

• Must be a U.S. Citizen with an active TS/SCI clearance.
• Bachelor’s degree in software engineering, computer science, or a related field (or 4 additional years of experience in lieu of a degree).
• Minimum of 5+ years of experience in back-end software development.
• Expertise in RESTful API & microservice design patterns.
• Strong programming skills and experience in developing backend web server implementations using REST. Preferably using Python frameworks such as Flask, FastAPI, Django etc.
• Proficiency in programming languages such as Python, Java, JavaScript, or Go.
• Expertise in containerized application development and management. Preferably with a strong familiarity of Docker & Kubernetes, including deploying, managing, and scaling containerized applications, as well as troubleshooting and optimizing workloads within a cluster.
• Strong understanding of database architecture, SQL, and NoSQL databases (e.g., PostgreSQL, MongoDB, Redis).
• Familiarity with CI/CD pipelines, DevSecOps practices, and automation tools (e.g., Jenkins, GitLab CI/CD, Terraform, Ansible).
• Experience with cloud platforms (AWS, Azure, or Google Cloud) and infrastructure as code (IaC).
• Strong debugging and performance optimization skills for distributed systems.

What Desired Skills You'll Bring:

• Experience with message queuing technologies (e.g., Kafka, RabbitMQ, NATS).
• Knowledge of GraphQL, gRPC, or WebSockets for modern data services.
• Understanding of cybersecurity best practices, encryption, and secure coding techniques.
• Familiarity with observability tools (e.g., Prometheus, Grafana, ELK stack).
• Ability to communicate complex technical concepts to non-technical stakeholders and senior leadership.
• Experience working in Agile/SAFe development environments.
• TS/SCI w/Poly preferred.

Minimum Clearance Required to Start:

Top Secret

Minimum Clearance Required to Start:

Top SecretThis position is part of our Federal Solutions team.The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.Salary Range: $108,700.00 - $217,400.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled.Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!

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