java/j2ee senior developer Jobs in denver, co

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Software Engineer

Lockheed Martin Corporation

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Remote or Titusville, Florida, USA

Full-time

Job Description The coolest jobs on this planet or any other are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world and every single day. We use our skills and experiences to create, design and build solutions to some of the worlds' hardest engineering problems. The selected Software Engineer will be involved in all phases of the software engineering process including, but not limited
Posted 2 days ago | Updated 9 hours ago

.Net Developer ( Senior Developer) - ONLY W2

Radus Tek Services

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Remote

Contract

Senior .NET developer Webforms, .NET C#, Java Script/jQuery - To work on huge enterprise websites & many .NET backend systems - Very strong UI development experience is mustStrong Oracle PL/SQL development experience - Need very good experience with PL/SQL development as the engineer need to deal with hundreds of stored procedures and packages and candidate must be capable of writing high-quality performant PL/SQL codeMost of the engineers with these skills should be working on these technolog
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Posted 11 days ago

Senior Software Developer(hybrid)

Oracle Corporation

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Remote

Full-time

Job Description As a member of the software engineering division, you will apply basic to intermediate knowledge of software architecture to perform software development tasks associated with developing, debugging or designing software applications or operating systems according to provided design specifications. Build enhancements within an existing software architecture and occasionally suggest improvements to the architecture.Duties and tasks are standard with some variation; displays unders
Posted 60+ days ago | Updated 9 hours ago

Senior Staff IT Developer

Right Skale, Inc.

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Illinois, USA

Third Party

The Staff/Senior Staff IT Developer (Application Security) will design and secure internal applications, conduct security code reviews, perform penetration testing, and collaborate with cross-functional teams in an Agile environment. Key Responsibilities: Design secure, scalable IT solutions focused on performance. Conduct security code reviews for quality and best practices. Identify and remediate vulnerabilities (e.g., XSS, SQLi, CSRF, SSRF). Perform web app penetration testing (manual/automa
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Posted 5 days ago | Updated 9 hours ago

Senior SAP ABAP HANA Developer

Pioneer IT Systems LLC

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Remote

Contract

Senior SAP ABAP HANA Developer SAP ABAP Developer Location: Remote Duration: 12-month contract Our client is looking to contract a Senior SAP ABAP HANA Developer who will be charged with implementing ABAP applications for S/4 HANA Finance Transformation & supporting SAP ECC HR / FI operations. You will be working as part of the SAP Technical team that is responsible for development & support of all SAP applications across North America. RESPONSIBILITIES Focus on design, coding, testing, &
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Posted 5 days ago | Updated 5 days ago

Senior : Python Full stack Developer ( React JS , Mongodb )

Bramkas Inc.

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Remote

Contract

PSenior : Python Full stack Developer ( React JS , Mongodb ) Location: United States RemotePosition Type: Open to Contract / Contract-to-Hire (Open to Full-Time)Experience Required: 9+ YearsMust have Skill : Python- backend development , FastAPI , React ,MongoDB , Data EngineeringWe are looking for a skilled Senior : Python Full stack Developer ( React JS , Mongodb )who is comfortable working across the backend, frontend, and data transformation layers. The ideal candidate is someone with strong
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Posted 11 days ago | Updated 1 day ago

Sr. SOAP API Developer @ Remote Role

Palnar

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US

Contract, Third Party

Required Skills, 10+ years of experience with technologies including JAVA, SOAP API, REST, Unit Testing, ORM 5+ years of experience developing and deploying cloud-based applications in Azure 3+ years using front end JavaScript frameworks like Angular or React 3+ years of experience designing RESTful services using Web Api Strong technical knowledge of Azure PaaS, IaaS, and Azure AD Strong understanding of architectural design patterns, concepts, and best practices Strong analytical and problem-s
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Posted 7 days ago | Updated 22 hours ago

Role: Sr. UI/Angular Developer, Location: 1775 Tysons Blvd, VA.

Satsyil Corporation

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Remote

Full-time

Role: Sr. UI/Angular DeveloperLocation: 1775 Tysons Blvd, VA-REMOTEDuration: FTE. Job Description: Satsyil Corp. is seeking a motivated Senior UI/Angular Developer to join an exciting modernization project for our client working in a fast-paced and forward-thinking agile environment. Qualified candidates will have proven to experience translating user and business requirements into the structural design of highly intuitive and well-crafted interfaces. The UI Developer will work with a cross-func
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Posted 10 days ago

Senior Snowflake Developer

Fint Solutions Inc

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Remote

Contract

10+ years of experience is required Data warehousing solutions on Oracle, Teradata, DB2 etc.Snowflake internals and integration with other data processing technologiesCreation of data ingestion pipelines with tools like Informatica, Talend etc.Cloud computing experience with AWS, Microsoft Azure, Google CloudKnowledge of SQL and complex query writingUnderstanding of data compliance and necessary security protocolsData lakes, data structures and data models suited to Snowflake architectureETL pro
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Posted 8 hours ago

Senior Python Full Stack Developer (with Data Engineering Expertise )

Bramkas Inc.

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Remote

Contract

Python : Full Stack Polyglot Engineer with Data Engineering Expertise Location: United States RemotePosition Type: Open to Contract / Contract-to-Hire (Open to Full-Time)Experience Required: 9+ YearsMust have Skill : Python , FastAPI , React ,MongoDB , Data Engineering We are looking for a skilled Python Polyglot developer who is comfortable working across the backend, frontend, and datatransformation layers. The ideal candidate is someone with strong hands-on experience in building scalable we
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Posted 11 days ago | Updated 11 days ago

Staff AWS Connect Developer

IDR Inc.

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Englewood, Colorado, USA

Full-time

IDR is seeking a Staff AWS Connect Developer to join one of our top clients in Denver, CO. This position is perfect for a technical expert with a strong background in AWS Connect architecture and development. If you're passionate about building scalable, integrated contact center solutions using the latest AWS technologies, and you're eager to work in a collaborative and innovative environment, apply today! Position Overview/Responsibilities for the Staff AWS Connect Developer: Design and imple
Posted 4 days ago | Updated 1 hour ago

Senior Software Apps Engineer, iOS-Remote

Generis TEK Inc.

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Remote

Contract

We have Contract role Senior Software Apps Engineer, iOS-Remote for our client at New York NY. Please let me know if you or any of your friends would be interested in this position. Position Details: Senior Software Apps Engineer, iOS-Remote-New York NY Location : REMOTE (EST & PST) Project Duration : 12+ Months Contract Pay Rate : $ 95.00 100.00/hr. on W2 Overview of the team: The team is responsible for the infrastructure of the Yahoo Mail iOS mobile application. We establish best practices f
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Posted 9 days ago | Updated 4 days ago

Senior Analytics Developer - Specialist 3

K Systems Solutions

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Remote or Brooklyn, New York, USA

Contract

Client Name: City of New York Start Date: July 10, 2025 End Date: July 9, 2026 Contract Length (in weeks): 52 Weeks SCOPE OF SERVICES TASKS:. ? Develop and maintain highly efficient and interactive reports, dashboards, and data models to meet business requirements. ? Collaborate with data scientists and business stakeholders to understand data analysis needs and translate them into technical requirements.? Design and implement data engineering pipelines to extract, transform, and load data f
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Posted 12 days ago | Updated 9 hours ago

Staff Engineer - Software

IT Minds LLC

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Littleton, Colorado, USA

Contract

Staff Engineer - Software 3+ months C2H Littleton, CO Primary Skills: Expert-level proficiency in at least one programming language (e.g. Java Python Go C++). Strong understanding of object-oriented design design patterns and software architecture. Experience building scalable distributed and high-availability systems. Proficiency in API design (RESTful APIs gRPC). Deep experience with AWS services especially: Amazon Connect Lambda DynamoDB S3 CloudFormation / CDK SQS/SNS/Kinesis Infrastructure
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Posted 4 days ago

Sr Backend Engineer (TypeScript)

Ledgent Technology

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Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Backend Engineer (TypeScript) Location: 100% Remote (U.S. Remote) Employment Type: Direct-hire Compensation: Up to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Sr. Backend Engineer to help design, build, and maintai
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Posted 11 days ago | Updated 1 hour ago

Sr. Liferay Developer

Youngsoft

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Remote

Contract

Youngsoft, Inc. ( is a global software solutions IT company, delivering digital enterprise business betterment since 1996. Through collaborative engagement and discovery with our clients and vendors, we co-create industry specialized digital products, applications software, process, programs, and project outcomes. Headquartered in metro-Detroit, we leverage "pods" of Subject Matter Experts, Business Analysts, Solutions Architects, Software Engineers, and Project Managers, fused with HyperCare th
Posted 27 days ago | Updated 6 days ago

Engineer II - Mission Planning (Onsite)

RTX Corporation

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-06-16 Country: United States of America Location: CO112: Buckley AFB 18500 East 6th Ave 18500 East 6th Avenue Buckley AFB, Aurora, CO, 80011 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: TS/SCI with CI Poly - Current At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - t
Posted 15 days ago | Updated 9 hours ago

DevOps Engineer

Apex Systems

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Denver, Colorado, USA

Full-time

Job#: 2078767 Job Description: Apex Systems, a World-Class Technology Solutions Provider, is seeking applicants for the below position on behalf of our client. Please apply if interested and qualified. Please note that only qualified candidates will be contacted. We cannot work corp to corp - All applicants must be able to work on Apexs W2 without sponsorship now or in the future. Position: DevOps Engineer Location: Denver, CO | Chicago, IL | Washington, DC - 5 days onsite weekly Duration: 12
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Posted 14 days ago | Updated 9 hours ago

Senior Oracle PL/SQL Data Engineer - AVP

Citi

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Remote or Irving, Texas, USA

Full-time

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. We are looking for Senior Oracle PL/SQL Data Engineer responsible for establishing and implementing new or revised application systems
Posted 22 days ago | Updated 9 hours ago

Principal Cloud Software Engineer

ManTech

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Denver, Colorado, USA

Full-time

Mantech seeks a motivated and customer-focused Principal Cloud Software Engineer to join our team in Denver, CO or Chantilly, VA. In this role, you will design, develop, and support cloud-based backend applications, ensuring secure and scalable solutions for mission-critical systems. Responsibilities include but are not limited to: Design, develop, and maintain production backend applications for the ServiceNow platform using JavaDeploy and manage services in cloud environments, with an emphasi
Posted 4 days ago | Updated 1 day ago