Mainframe Developer

Role Overview Aretum is seeking a Contingent Angular Frontend Web Developer to help improve user experiences across our web applications. This remote position is based in McLean, Virginia, United States. What You Will Do Work with Angular to build and refine web application interfaces Collaborate with design and backend teams to deliver software solutions Contribute to projects that address client needs as they evolve Location Remote , McLean, Virginia, United States

Join Aretum as an Angular Frontend Web Developer and be part of a dynamic team that values innovation and creativity. In this remote role, you will design and implement user-friendly web applications, contributing to exciting projects that impact our clients directly.

Join aretum as an Angular Frontend Web Developer with a strong emphasis on accessibility. In this fully remote role, you will be pivotal in designing and implementing user-friendly web applications that cater to all users, including those with disabilities. Your expertise in Angular, combined with a passion for inclusive design, will help us create digital experiences that are accessible and enjoyable for everyone.

Location: Remote , McLean, Virginia, United States Clearance: Public Trust Eligibility Required This contingent position depends on Aretum’s successful contract award and completion of any required background check or security clearance. Role overview The Contingent Frontend Vue.js Developer will focus on building and integrating a custom application with multiple client systems. This position emphasizes frontend development using Vue.js to deliver solutions for federal clients. Some assignments may involve handling Controlled Unclassified Information (CUI) and following compliance requirements. What you will do Work as part of an Agile team Develop and maintain custom web applications in a microservices environment Concentrate on frontend tasks, with occasional backend support Apply accessibility standards throughout the development process Collaborate closely with team members Manage multiple assignments at once Work independently and as part of a team Communicate clearly with team members and stakeholders Coordinate with the Project Manager to address changing client needs Requirements More than 5 years of experience in custom web application development At least 3 years working with Vue.js (version 3 or higher) 5+ years in full-stack development, with strong knowledge of UI frameworks and backend architecture Bachelor's degree or 2 additional years of relevant experience in place of a degree Proficient in JavaScript and CSS Experience developing and consuming FastAPI and/or RESTful web services Solid understanding of Scrum and Kanban Agile methodologies Strong problem-solving skills in open-source environments Experience with continuous integration (CI) practices Understanding of mobile-friendly web application design Familiarity with Section 508 accessibility standards Strong analytical, collaborative, and communication skills Preferred qualifications Bachelor's degree in Computer Science, Engineering, or a related field Experience supporting federal government projects Knowledge of Vite, Quasar, or Pinia frameworks

Aretum is seeking a Contingent Java Backend Developer to join its remote team based out of McLean, Virginia. This position centers on building backend solutions that support the company’s applications. Role overview The developer will focus on creating and maintaining backend systems using Java. The work involves supporting ongoing projects and contributing to new application features as part of a collaborative team. Work environment This role operates remotely, with a team approach that values support and open communication. Collaboration with colleagues is a key part of daily work.

Location: Remote, McLean, Virginia, United States Clearance: Public Trust Eligibility Required This contingent position depends on Aretum securing the associated contract award and successful completion of any required background checks or security clearance processes. Role overview The Senior Python Developer leads integration for custom applications across diverse client systems. This position combines hands-on software development with mentoring responsibilities. As part of a federal consulting team, work may involve handling Controlled Unclassified Information (CUI) and following compliance and safeguarding requirements. What you will do Collaborate across teams in an Agile setting Develop FastAPI endpoints for content delivery Create and maintain microservices Contribute to both front-end and back-end development Mentor junior developers on Python design best practices Design and implement ETL processes Engage actively in team discussions and planning Manage multiple tasks and shifting priorities Work independently as well as within a group Apply strong interpersonal and communication abilities Coordinate with the Project Manager to address evolving client needs Requirements Minimum 8 years of Python development experience 8+ years working with object-oriented programming principles Bachelor’s degree, or 2 additional years of relevant experience in lieu of a degree Skilled in API development and integration Experience with microservices architecture Familiarity with JavaScript and JQuery Knowledge of search engines such as Solr or Elasticsearch Background designing and developing enterprise web and search systems Experience with enterprise database technologies, including Postgres and MySQL Hands-on with containerization tools like Docker, Podman, or Kubernetes Comfortable working with open-source solutions Familiarity with enterprise Python applications Expertise in CI/CD solutions Experience with large AWS deployments and Terraform Practice working within Agile methodologies Preferred Bachelor's degree in Computer Science or a related field

Join dev2 as a Lead Full Stack Software Engineer, where you will leverage your expertise in Java, Python, Angular, and React to drive innovative solutions. You will be responsible for leading a dynamic team of developers, overseeing project lifecycles from conception to deployment, and ensuring the delivery of high-quality software products.Your role will involve collaborating with cross-functional teams to understand business requirements, design scalable architectures, and implement best practices in software development. If you are passionate about technology, thrive in a fast-paced environment, and want to make a significant impact, we would love to hear from you!

Join usm2 as a Web Methods Administrator where you will play a crucial role in managing and optimizing our web methods infrastructure. You will collaborate with cross-functional teams to ensure seamless integration and performance of our web applications.

Role Overview:As a Child Development Specialist at Positive Development, you will engage directly with autistic children to foster their communication, social, and daily living skills through dynamic, play-based interactions. Your efforts will have a profound impact on their growth and development.Our Mission: At Positive Development, we are dedicated to creating opportunities for every child to flourish and for emerging professionals to acquire invaluable skills. Join us in making a difference!Why Choose This Position: This role goes beyond passive observation; you will actively coach and connect with children, gaining hands-on experience that is essential for careers in various fields, including psychology, social work, occupational therapy, speech-language pathology, special education, counseling, and healthcare.This deeply rewarding work requires patience, emotional maturity, and a commitment to the developmental journey of each child. You will receive guidance and support from seasoned clinicians and supervisors invested in your professional growth.Ideal Candidates: We are particularly interested in individuals who are:Passionate about supporting children and adolescentsCurious about human development and learning processesEmpathetic, patient, and enthusiasticReliable and committed to maintaining a consistent scheduleComfortable working in a home-based setting with familiesGreat candidates may include education majors, psychology students, pre-medical students, nursing students, or anyone eager to make a positive impact.

Role Overview Exiger is hiring a Front End Developer focused on public sector projects. This role works closely with teams across disciplines to build and maintain web applications for government clients. Location options include Huntsville, Alabama and McLean, Virginia. What You Will Do Translate UI/UX wireframes into clean, efficient front-end code Develop web applications that are responsive and perform well on a range of devices Work with colleagues from different functions to deliver solutions tailored to public sector needs Contribute to creating user-friendly interfaces that improve the experience for government users About Exiger Exiger provides risk management and compliance solutions to clients worldwide, including the public sector.

About the Role grvty is looking for a Full Stack Developer in McLean, Virginia. This role involves building and refining web solutions as part of a collaborative team. The position calls for someone who takes initiative in software development and aims for high-quality results.

Public Trust Eligibility RequiredThis is a contingent position, meaning your employment is contingent upon the successful award of the associated contract to Aretum and the completion of any required background investigation or security clearance verification.About AretumAretum is a mission-driven organization dedicated to providing innovative, technology-enabled solutions to our clients within the defense, civilian, and homeland security sectors. We operate at the intersection of strategy, technology, and transformation, assisting agencies in overcoming their most pressing challenges. Our commitment to investing in our people fosters a culture that prioritizes collaboration, inclusion, and professional development.Job SummaryAretum is looking for a talented and driven UX Designer to join our dynamic team. In this role, you will leverage user-centered design principles to navigate the complete design process, emphasizing the creation of wireframes and prototypes within a cohesive design system. You will also conduct usability testing and accessibility audits to ensure our products fulfill user needs and expectations effectively.Given the nature of our work as a federal consulting organization, employees may be required to manage Controlled Unclassified Information (CUI) and must comply with applicable safeguarding and compliance protocols.

Join our dynamic team at Aretum as a Contingent Test Engineer! In this role, you will leverage your expertise in software testing to ensure the highest quality in our products. You will collaborate with cross-functional teams to design, develop, and execute test plans, while also identifying and reporting defects. This position is ideal for someone who is detail-oriented, enjoys problem-solving, and is passionate about delivering excellence.

Join our dynamic team as a Drupal Developer at Astor & Sanders, where you will play a key role in designing, developing, and maintaining innovative web applications. You will collaborate with cross-functional teams to create user-friendly experiences and implement robust solutions that meet our clients' needs.

Are you a skilled programmer/analyst with a passion for web technologies? Join our dynamic team at stemxpert1 as a Web Programmer/Analyst III. In this pivotal role, you will collaborate with cross-functional teams to develop, enhance, and maintain cutting-edge web applications. Your expertise will drive our initiatives forward and contribute to delivering exceptional user experiences.

Join Aretum as a .NET Developer and be part of an innovative team dedicated to building cutting-edge applications. As a key player in our development process, you will design, develop, and maintain high-quality software solutions that meet the needs of our clients.

Public Trust Eligibility Required This is a contingent position. Employment depends on Aretum receiving the associated contract award and successful completion of any required background investigation or security clearance verification. This remote Scrum Master & QA Test Engineer role supports a federal technology modernization project. The position blends scrum facilitation with quality assurance testing, contributing to both team process and software reliability. What you will do Facilitate scrum ceremonies, including daily stand-ups, backlog refinement, sprint planning, and sprint reviews Keep project documentation current and organized Carry out manual and automated testing during sprint cycles Create and maintain test automation frameworks Test for functionality, integration, accessibility (WCAG 2.1 AA), and performance Review UI code to confirm accessibility standards are met Execute load and performance tests before key releases Share clear, actionable feedback with developers, product owners, and leadership Additional details Team members may work with Controlled Unclassified Information (CUI) and must follow all safeguarding and compliance protocols required for federal consulting work.

Join dev2 as a Senior Front-End Software Engineer, where you will play a pivotal role in designing and developing innovative web applications. You will collaborate with cross-functional teams to deliver high-quality software solutions that enhance user experience and drive business success.

Join our team at CareerGuidant as a Java ODM Developer where you will play a crucial role in designing, developing, and maintaining our innovative software solutions. You will have the opportunity to work on cutting-edge technologies and collaborate with a dynamic team of professionals.