Applications Developer

TEKsystems is seeking an Applications Developer to support the enhancement, modernization, and ongoing operations of the ECOSphere platform for the U.S. Fish and Wildlife Service. ECOSphere is a mission-critical enterprise application ecosystem that supports conservation efforts, environmental data management, regulatory programs, and services used by both federal employees and the public. This is an excellent opportunity for an early-career software developer to gain hands-on experience supporting a large-scale federal application environment while working with modern technologies including Java, Spring Boot, Angular, React, AWS, APIs, and DevSecOps tools. The ideal candidate is passionate about software development, enjoys solving technical challenges, and is interested in contributing to meaningful projects that directly support wildlife conservation and environmental stewardship across the United States. Responsibilities Design, develop, test, and implement new application features and enhancements.Build and maintain Java-based applications using Spring Boot and modern development frameworks.Develop, maintain, and support RESTful APIs and system integrations.Support front-end development efforts utilizing Angular and React technologies.Assist with cloud-based application deployments and modernization initiatives within AWS environments.Support CI/CD pipelines and automated deployment processes.Troubleshoot and resolve application issues in development, testing, and production environments.Provide Tier 2 and Tier 3 application support and incident resolution.Participate in application modernization initiatives, technology upgrades, and legacy system improvements.Create and maintain technical documentation, system diagrams, and support documentation.Develop and maintain reporting datasets and data integrations.Collaborate with cross-functional teams in an Agile software development environment.Ensure solutions comply with federal security requirements and secure development best practices.Contribute to continuous improvement initiatives focused on performance, reliability, scalability, and user experience. Required Qualifications Ability to obtain and maintain a Public Trust clearance.Approximately 1-3 years of experience in software development, application development, or a related technical role.Experience developing applications with Java and Spring Boot.Experience with modern front-end frameworks such as Angular and/or React.Experience developing and supporting RESTful APIs.Working knowledge of SQL and relational databases.Exposure to AWS cloud services and cloud-based application environments.Experience working in Agile development environments.Strong problem-solving and troubleshooting skills.Strong written and verbal communication skills.Ability to work onsite 100% of the time in Fort Collins, CO or Falls Church, VA. Preferred Qualifications Experience with Node.js or Python.Familiarity with Jenkins and CI/CD pipelines.Experience using Docker and containerized environments.Exposure to Infrastructure as Code tools including Terraform or CloudFormation.Experience with Groovy scripting.Knowledge of DevSecOps practices and secure software development methodologies.Experience supporting government, public sector, or enterprise-scale applications.Experience with Databricks is a plus. Technology Environment JavaSpring BootAngularReactAWSREST APIsSQLJenkinsDockerTerraformCloudFormationNode.jsPythonGroovyAgile/Scrum Why Join This Team? Support a mission-driven federal program that impacts conservation efforts nationwide.Gain experience with modern cloud and full-stack development technologies.Work alongside experienced developers, engineers, and technology professionals.Contribute to application modernization and cloud transformation initiatives.Opportunity for long-term career growth through a contract-to-hire pathway.Build experience supporting enterprise applications within a federal environment. Additional Information 100% onsite role.Locations available in Fort Collins, Colorado or Falls Church, Virginia.Candidates must complete a client-specific technical crosswalk during the submission process.The current program is funded through at least August 2027 with continued modernization initiatives planned. Job Type & Location This is a Contract to Hire position based out of Fort Collins, CO. Pay And Benefits The pay range for this position is $46.00 - $50.00/hr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave) Job Type & Location This is a Contract to Hire position based out of Fort Collins, CO. Application Deadline This position is anticipated to close on Oct 28, 2026. Workplace Type This is a fully onsite position in Fort Collins,CO. About TEKsystems We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems And TEKsystems Global Services Were a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Were a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. Were strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Were building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records. Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.