- Design, build, and maintain backend services using Java and Spring Boot
- Develop and evolve microservices and REST APIs
- Modernize legacy backend components while ensuring system stability
- Design and optimize PostgreSQL schemas and queries. Integrate services with AWS (Lambda, S3, API Gateway, SQS, EventBridge, etc.)
- Apply event-driven and cloud-native patterns to improve scalability and resilience
- Write unit and integration tests and participate in code reviews
- Support production systems, debugging issues, and improving observability
- Collaborate closely with Product, Frontend, QA, and DevOps teams in an Agile environment
- Strong experience with Java and Spring Boot
- Solid understanding of backend architecture, microservices, and design patterns
- Hands-on experience with AWS services Strong SQL skills xhmxlyz and experience with PostgreSQL
- Experience working with legacy systems and incremental modernization
- Familiarity with CI/CD pipelines and containerized deployments
- Financial Services or Wealth Management experience is a plus
- Ownership mindset and strong problem-solving skills
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Job ID: · 712393BR · Date posted: · Dec. 08, 2025 · Description: This position may be eligible for a $25K sign on bonus for external hires · What We're Doing: · Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of adv ...
Mc Lean $75,000 - $140,000 (USD) per year3 days ago
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The Sponsor requires an experienced Rust developer to join the team, focusing on creating high-performance web applications and AI-powered solutions. · ...
Mc Lean1 month ago
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Simulator Software Engineer - Sr Simulator Software Engineer to be filled at Clinton Nuclear Power Station in Clinton, IL. · This is a multi-level opening that can be filled at the Simulator Software Engineer level or the Sr Software Engineer level. Please see the minimum qualifi ...
Mc Lean $90,000 - $150,000 (USD) per year5 days ago
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Job ID: · 712529BR · Date posted: · Dec. 05, 2025 · Description: · THE WORK · This senior role fosters collaboration with other senior engineers for the development of advanced data analytics solutions and agile development projects in support of a high-visibility mission. · This ...
Mc Lean3 days ago
- Work in company
Full Stack Software Engineer-TS/SCI with polygraph required
Only for registered members
Overview · LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial sp ...
Mc Lean1 day ago
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As a Sr. DevSecOps Engineer II, you'll play a critical role in designing, implementing, and maintaining secure and efficient software development and deployment pipelines. You will collaborate with cross-functional teams to integrate security practices seamlessly into the develop ...
Mc Lean3 hours ago
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RELOCATION ASSISTANCE: Relocation assistance may be available · CLEARANCE TYPE: None · TRAVEL: No · Description · At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generatio ...
Mc Lean1 day ago
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MANTECH · seeks a motivated, career-oriented, and customer-focused · Enterprise IT Support Technician · to join our team in · McLean, VA . In this role, you will provide technical support, installation services, and customer service for computer hardware, applications, and networ ...
Mc Lean1 day ago
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We are seeking a Lead Data Engineer to join our team based in McLean, VA for a long term engagement. · ...
Mc Lean1 month ago
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+This internship opportunity focuses on AI Enablement in McLean, Virginia. The Technology Architect Fellow will collaborate with innovative startups to enhance their capabilities aligned with mission partners. · +Evaluate emerging capabilities and companies in AI for their impact ...
Mc Lean1 month ago
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Who Are We? · Groundswell is a premier technology integrator and solution provider, resolutely committed to solving the most complex challenges facing federal agencies today. Our name, Groundswell, represents our commitment to be an unstoppable, seismic change in government. Ours ...
Mc Lean $120,000 - $190,000 (USD) per year1 day ago
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We are a forward thinking technology company located in Santa Monica, CA, · looking for a Senior Java Site Reliability Engineer to join our dynamic team. · ...
Mc Lean1 month ago
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About DMI · DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports ...
Mc Lean $100,000 - $120,000 (USD) per year1 day ago
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Job Family : · SAAS/PAAS/Cloud Consulting · Travel Required : · Up to 25% · Clearance Required : · Ability to Obtain Secret · What You Will Do : · We are looking for a hands-on software engineer with deep knowledge of Microsoft Power Apps, including basic Microsoft Dynamics 365 u ...
Mc Lean $85,000 - $135,000 (USD) per year1 day ago
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Aviation Data Engineer · The Opportunity: · Ever-expanding technology like IoT, machine learning, and artificial intelligence means that there's more structured and unstructured data available today than ever before. As a data engineer, you know that organizing data can yield piv ...
Mc Lean $62,000 - $141,000 (USD) per year1 day ago
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Position Overview · The Commercial Construction Manager oversees all phases of commercial construction projects—from pre-construction planning through completion and handover. This role ensures projects are delivered on time, within budget, in compliance with codes and regulation ...
Mc Lean $75,000 - $135,000 (USD) per year1 day ago
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Project Engineer OCONUS with Security Clearance · American International Contractors (Special Projects), Inc. (AICI-SP) is seeking Project Engineers for secure projects overseas. · Requirements: · Active U.S. Secret Level Security Clearance · Bachelor of Science degree in Enginee ...
Mc Lean1 day ago
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NS2 Mission is currently seeking a driven and skilled Cloud Developer to join our team in Chantilly, VA. This Cloud Developer will leverage advanced technical resources to deliver timely, reliable, and secure data insights, including open-source and social media content, to suppo ...
Mc Lean $90,000 - $160,000 (USD) per year1 day ago
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Pre-Sales Field Engineer · Virginia, USA · Job Description · We are seeking a mission-driven Pre-Sales Field Engineer to support our expanding operations across North America, with a strong focus on Department of Defense (DoD) engagements. · In this role, you will directly suppor ...
Mc Lean $90,000 - $160,000 (USD) per year1 day ago
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Job Family : · SAAS/PAAS/Cloud Consulting · Travel Required : · Up to 10% · Clearance Required : · Ability to Obtain Secret · What You Will Do : · We are looking for a hands-on software engineer with deep knowledge of Microsoft Power Apps, including basic Microsoft Dynamics 365 u ...
Mc Lean1 day ago
Java Software Engineer - Mc Lean - hackajob
Description
hackajob on-demand focuses on matching talented contractors like you with organisations seeking specific skills for their projects. We use our platform to connect you with exciting contract opportunities and discuss projects on behalf of the companies we partner with.
Read all the information about this opportunity carefully, then use the application button below to send your CV and application.
Job Title: Sr. Backend Java Developer
Location: McLean, VA - onsite - 5 days/week
Description:
They're looking for a Senior Backend Developer to join an Agile team responsible for a mission-critical web platform. You'll work on stabilizing and enhancing existing systems while driving modernization using Java and AWS. This role suits a pragmatic, hands-on engineer who enjoys owning backend systems end-to-end and shaping technical direction in a regulated environment.
What You'll Do
What We're Looking For
Technology Stack Languages & Frameworks: Java 23, Spring Boot 3.x Architecture: Microservices, REST APIs, event-driven systems Database: PostgreSQL Cloud: AWS DevOps: Git, Gradle, Docker, CI/CD Observability: New Relic, Elasticsearch Productivity: GitHub Copilot
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Software Engineer
Lockheed Martin- Mc Lean
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Software Engineer
Only for registered members Mc Lean
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Simulator Software Engineer
Constellation Energy- Mc Lean
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Software Engineer with Poly SR SWE2
Lockheed Martin- Mc Lean
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Full Stack Software Engineer-TS/SCI with polygraph required
Only for registered members Mc Lean
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Sr DevSecOps Engineer
TEKsystems- Mc Lean
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Principal/Sr. Principal Engineer Systems
Only for registered members Mc Lean
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Enterprise IT Support Technician
MANTECH- Mc Lean
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Lead Data Engineer with spark and aws expertise
Only for registered members Mc Lean
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Technology Architect
Only for registered members Mc Lean
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Senior Program Manager
Only for registered members Mc Lean
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SRE/DevOps Engineer
Only for registered members Mc Lean
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Systems Engineer
Only for registered members Mc Lean
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Power Platform Developer
Only for registered members Mc Lean
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Aviation Data Engineer
Only for registered members Mc Lean
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Commercial Construction Manager
Only for registered members Mc Lean
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Project Engineer OCONUS with Security Clearance
Only for registered members Mc Lean
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Cloud Developer
Only for registered members Mc Lean
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Pre-Sales Field Engineer
Only for registered members Mc Lean
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Senior Power Platform Developer
Only for registered members Mc Lean