Senior Python Developer (Contingent)

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

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.

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

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.

Join usm2 as a Senior Development Engineer, where you will lead innovative projects and drive technical excellence within our development team. You will collaborate closely with cross-functional teams to deliver high-quality software solutions that meet our clients' needs. Your expertise will be crucial in enhancing our development processes and guiding junior developers.

Senior Appian DeveloperAstor & Sanders Corporation (Astor) is a distinguished IT solutions provider located in McLean, VA, currently on the lookout for a talented Senior Appian Developer. This is a full-time, hybrid opportunity within the DMV region.The Senior Appian Developer plays a pivotal role in hands-on Appian application development, guiding cross-functional technical teams, and ensuring comprehensive system performance. Collaboration with architects, business analysts, and project managers is essential to design and deliver high-quality, secure, and scalable Appian-based applications. This position requires extensive expertise in Appian design objects, integrations, process models, and industry best practices.ResponsibilitiesDevelop, enhance, and maintain Appian applications, including interfaces, process flows, records, reports, and integrations.Lead a team of developers throughout the complete software development lifecycle: requirements gathering, design, development, testing, deployment, and maintenance.Conduct code reviews, solve complex technical challenges, and mentor the team in adhering to best practices and coding standards.Implement and manage DevSecOps practices to automate testing, security scans, and deployment pipelines.Provide high-level architectural guidance and ensure solutions comply with DOL’s enterprise architecture and relevant regulations (FISMA, FedRAMP).Work alongside the business analyst and scrum master to refine user stories, establish acceptance criteria, and ensure realistic development timelines.Coordinate security assessments, prepare documentation for audits, and address vulnerabilities within set timeframes.

Join our dynamic team at 360IT Professionals as a Senior .NET Developer, where you will play a pivotal role in developing robust applications and systems. We are looking for an innovative and experienced developer who is passionate about technology and eager to contribute to exciting projects.In this role, you will collaborate with cross-functional teams to design, develop, and implement high-quality software solutions. You will also have the opportunity to mentor junior developers and help shape the technical direction of our projects.

We are seeking a highly skilled Senior Lotus Notes Developer to join our dynamic team at StemXpert1. In this role, you will leverage your expertise in Lotus Notes development to create, maintain, and enhance applications that support our business operations. You will collaborate with cross-functional teams to gather requirements, design solutions, and implement best practices in software development.

Join usm2 as a Senior J2EE Developer and take your career to the next level. In this role, you will leverage your expertise in J2EE technologies to design, develop, and implement dynamic applications. Collaborate with cross-functional teams to deliver high-quality software solutions that meet client needs and drive business success.

Join usm2 as a Senior Salesforce Developer and play a pivotal role in transforming our clients' business processes through innovative Salesforce solutions. You will be responsible for designing, developing, and implementing customized Salesforce applications that enhance user experience and drive operational efficiency.As a key member of our team, you will collaborate with cross-functional teams to gather requirements, translate them into technical specifications, and ensure the successful delivery of projects on time and within budget. Your expertise in Salesforce development and architecture will be crucial in guiding best practices and mentoring junior developers.

We are seeking a highly skilled Senior Java Developer to join our dynamic team in McLean, Virginia. The ideal candidate will possess extensive experience in Java development, demonstrating an ability to deliver robust and scalable software solutions. You will be responsible for designing, implementing, and maintaining Java applications, collaborating closely with cross-functional teams to define, design, and ship new features.As a Senior Java Developer, you will also mentor junior developers and contribute to architectural discussions, ensuring best practices are followed throughout the development lifecycle.

We are seeking an experienced Senior Database Developer to join our dynamic team. In this role, you will be responsible for designing, implementing, and maintaining complex database systems to support our clients' needs. You will work closely with cross-functional teams to optimize database performance, ensure data integrity, and provide technical support.

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!

aretum is seeking a Senior Java Backend Developer to help design and build backend systems for their team. This fully remote role is based out of McLean, Virginia, but allows for work from anywhere in the United States. Role overview This position centers on creating and maintaining backend solutions using Java. Collaboration with cross-functional teams is a key part of the job, ensuring software meets quality standards and project goals. What you will do Design and develop backend systems with Java Work closely with colleagues across different teams Tackle complex technical challenges to deliver reliable software Requirements Strong experience with Java backend development Interest in problem-solving and building technical solutions Ability to work effectively in a remote team environment

We are seeking an experienced Senior Java Developer to join our dynamic team in McLean, Virginia. As a vital member of our development team, you will be responsible for designing and implementing robust Java applications that meet the needs of our clients. This role requires a strong understanding of software development principles and a passion for delivering high-quality solutions.

Join our dynamic team at usm2 as a Senior Appian Developer/Integrator. In this pivotal role, you will leverage your expertise in Appian to design, develop, and integrate innovative solutions that drive our business forward. Collaborate with cross-functional teams to identify requirements and create robust applications that enhance operational efficiency.

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.

Role: Senior Java Developer (Spring Security)Location: McLean, Virginia - 22106Direct Client: ConfidentialPosition Type: Corp to Corp / W2Duration: 12 Months+Work Authorization: US Citizen; GC; EAD; H1BNote: Remote work is permitted initially, with relocation to McLean, Virginia required once the COVID-19 situation allows.Job Summary:Are you ready to elevate your career while earning above the market average? If you're a seasoned Java Backend Developer seeking both challenge and stability, we have the perfect opportunity for you. Join our IT Solutions Integrator/Consulting Firm as we partner with a prestigious financial client to hire a Senior Developer for an exciting two-year project.Key Responsibilities:Engage in hands-on Java development to design a policy engine akin to AWS IAM.Collaborate closely with management to address client stakeholder needs.Show enthusiasm for learning and adapting to new technologies.Foster a culture of innovation, continuous improvement, and teamwork.Document all created or modified functionalities clearly.Influence and collaborate with business lines and other IT teams effectively.Qualifications:You should possess expertise in some or all of the following:Experience in developing complex applications utilizing Java 8, Spring Security, and MongoDB.Proficiency in high-level technologies such as Java, Spring Boot, and REST/Microservices.Knowledge of cloud solutions implementation on platforms like AWS, Azure, or Google.A collaborative spirit to enhance development approaches alongside your team.Strong critical thinking and communication skills to interact with diverse stakeholders.A Bachelor’s degree in a relevant field.Preferred Qualifications:Experience with Identity and Access Management (IAM) using tools like PING Identity, OAuth 2.0, and OpenID Connect (OIDC).