Web Application / API Services Developer - Mid Level (FI2)

Trinity ES LLC
Chantilly, Loudoun County, VA

Web Application / API Services Developer – Mid Level (FI2)

Job Description:

Looking for an opportunity to revitalize an application that is used by everyone in our customer space? That's right, we're in the enviable position of starting from the beginning -- meaning we have the privilege and opportunity to choose libraries, tools, architectures -- you name it. This position is for those developers hungry to make a difference and put their stamp on a vital application that will help our customer succeed for decades to come. Feel free to read the resume-speak below, but if you have a TS/SCI clearance with FSP and you think you have what it takes, apply fast because this project will fill up soon!

This role is for an experienced, mid-level web application and/or API services developer. The applicant's resume should articulate the ability to develop and use complex concepts & processes, conduct root cause analysis, and develop technical solutions to problems while prioritizing multiple tasks. Candidates should have multiple years of experience as an individual contributor, and may have experience leading teams of junior-level developers. Well qualified candidates will have experience evaluating and recommending new technology and improving processes based upon cost, risk, and mission needs. The selected individual will be assigned to a scrum team within the development organization supporting numerous activities including:
  • Working at the tactical level, defining tasks and developing software programs
  • Designing, developing, documenting, testing, and debugging software that contains logical and mathematical solutions to critical mission issues
  • Applying the appropriate standards, processes, procedures, and tools throughout the development life cycle
  • Correcting program errors, compiling documentation of program development, and analyzing system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls
  • Leading and mentoring junior developers on the team and within Trinity
  • Reviewing code developed by other teammates, and providing professional and actionable feedback
  • Ensuring software standards are defined and met

Basic Qualifications:

  • Meet minimum education and experience requirements:
    • Master’s Degree with 4 years experience
    • Bachelor’s degree with 6 years experience
    • Associates with 8 years of experience
    • HS Diploma with 10 years experience
  • Experience working with a Scrum Master or Project Coordinator
  • Java and Spring development experience
  • DBMS and ORM (e.g. Hibernate) experience
  • Flexibility in supporting dynamic user needs
  • Strong troubleshooting skills
  • Proven experience in COTS/FOSS integration and support
  • Experience with multiple operating system environments including LINUX and Windows
  • Ability to learn and implement new technologies
  • Ability to maintain TS/SCI clearance with FSP

Preferred Qualifications:

  • Large scale software development experience: develop/modify/troubleshoot Java code
  • Agile development experience
  • UNIX/LINUX operating Systems,
  • Experience with HTML, Selenium, JavaScript, Webservices
  • Microservices leveraging REST, JSON, and/or XML
  • Deployment architectures including Continuous Integration Pipeline build concepts leveraging: Docker, Git / JIRA, Kubernetes, Jenkins, Conductor, Kafka/Zookeeper, Consul, CMDB
  • Big data technologies to include Data Ingest (JSON, Kafka, Microservices, Elastic Search), Analytics (HIVE, SPARK, R, PIG, OOZIE workflows), Elasticsearch, Hadoop (HIVE data, OOZIE, Spark, PIG, IMPALA, HUE), COTS Integration (Knowi, MongoDB, Oracle, MySQL RDS, Elastic, Logstash, Kibana, Zookeeper, Consul, HADOOP/HDFS), Docker and Chef)
  • CISSP Certification

Benefits:

- 5 Weeks Paid Time Off

- 10% contribution into 401K

- 10 paid holidays plus your birthday off!

- Medical, Dental, Vision, STD, LTD, Term Life, AD&D. Company pays monthly premiums

- Bonus program and yearly profit sharing!

- IT Training opportunities and continued education for IT degree seekers!

- Military Guard and Reserve benefits!
... and much more!

To see all our current career opportunities, check out our Trinity ES LLC career page !

Clearance Requirements*

Requires an active Top Secret security clearance with FSP upon hire and must meet SCI eligibility. Must be willing and able to obtain a polygraph within the customer’s timeline after hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

Posted 2026-02-06

Recommended Jobs

Senior Director, Hilton Masterbrand Strategy and Platform Marketing

Hilton
McLean, VA

***This role is based at our corporate office in McLean, VA*** Be the architect of the iconic hospitality brand that has defined The Stay. Step into a high-impact leadership role where strategy m…

View Details
Posted 2026-02-25

Supervisor, Tissue Recovery Operations

LifeNet Health
Richmond, VA

AT LIFENET HEALTH, YOU ARE THE ADVANTAGE   Every day, YOUhelp us to save lives, restore health, and bring hope to patients and families around the world. At LifeNet Health, we cultivate growth, in…

View Details
Posted 2026-02-23

Program Security Analyst

MANTECH
Stafford, VA

Program Security Analyst at MANTECH summary: CVWalletExtranet.Domain.Entities.JobShortDescription MANTECH seeks a motivated, acquisitions focused, and customer-oriented Program Security Analy…

View Details
Posted 2026-02-27

Tax Associate (M&A Tax and Fund Structuring)

Vested Search
Virginia

A leading Law Firm in New York is looking for an associate to join its premier Tax team. You will provide tax advice to a broad range of sponsors in the alternative investment funds industry—includin…

View Details
Posted 2026-01-20

Mental Health Therapist - Pediatric Experience - 1099 Contractor - Virginia

Lyra Health
Virginia

About Lyra Lyra Health is the leading provider of mental health solutions for employers supporting more than 20 million people globally. The company has published more than 20 peer-reviewed studies, …

View Details
Posted 2026-02-19

Mobile Auto Detailer

NextTouch LLC
Fairfax, VA

Mobile Auto Detailer – No Experience Required (Paid Training) NextTouch Auto Detailing is hiring a dependable and motivated Mobile Auto Detailer to join our team. This is a hands-on role performing…

View Details
Posted 2026-02-26

Licensed Family Day Home (FDH) Daycare Assistant

Watch Me Grow Early Learning Center LLC
Norfolk, VA

Summary Dedicated and nurturing assistant with experience supporting the care, safety, development of infants, toddlers, and young children. Strong communication skills when working with parents…

View Details
Posted 2026-02-20

Remote Data Analyst (Tableau & Power BI)

Jobgether
Williamsburg, VA

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Tableau and Power BI Expert - REMOTE. In this role, you will transform complex data into actionable…

View Details
Posted 2026-02-28

Full Stack Developer w/AWS Cloud Experience - TS/SCI with Polygraph

General Dynamics Information Technology
Chantilly, Loudoun County, VA

Public Trust: None Requisition Type: Regular Your Impact Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise t…

View Details
Posted 2026-02-18

HOST/DINING ROOM ATTENDANT-Fulltime/Part Time; $12.77-$14/Hour

Chick-fil-A Salem(VA)
Salem, VA

Description Chick-fil-A Salem(VA) is looking for a dining room host/hostess to help provide an exceptional guest experience for our guests. Our dining room host serves as the face of our operation…

View Details
Posted 2026-01-16