Senior Backend Developer Jobs in Warrenton, VA

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Sr Back End Developer

Confidential Company

•

Remote

Contract

We are an award-winning team of very trusted and respected technologists looking for a senior back end developer to join our team for a 100% remote project. Must have deep expertise in back end development and API development, with solid understanding of Python and interested in working doing general app/web dev with Python. This is a contract role, paid hourly c2c, and can be 20 hours per week, 30 hours per week, or 40 hours per week. Sound like a fit? Let's talk!
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Posted 27 days ago | Updated 2 days ago

Senior AWS Java Backend Developer with Node.JS

PETADATA

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Reston, Virginia, USA

Full-time, Third Party

Position: Senior AWS Java Backend Developer with Node.JS Experience: 12+ Years Work Type: Full-time, C2C Locations: Reston,VA - ONSITE PETADATA is seeking an experienced Senior AWS Java Backend Developer with Node.JS skills to join our team. Roles and Responsibilities: Design and develop scalable, secure, and efficient backend systems using Java and Node.JS Develop and maintain RESTful APIs, microservices, and serverless architectures on AWS Collaborate with frontend developers to integrate bac
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Posted 1 day ago | Updated 1 day ago

Sr. Back End Developer - Java Microservices API with payment apps experience

Photon

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Remote

Full-time

Title Sr. Back End Developer - Java Microservices Api - Onsite Mandatory experience : Recent implementation / integration experience of payment apps like Zelle or similar. Location: Cleveland OH Onsite , Remote ( should be able to travel to Cleveland at-least once in 2-3 months or as mandated by the client) Details Sr. Backend Developer (Java Microservices Api) Job Summary: We are seeking an experienced Sr. Developer to join our dynamic team. The ideal candidate will have strong expertise in
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Posted 1 day ago | Updated 1 day ago

Sr. Backend Developer (Java Microservices/API)

Photon

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Remote

Full-time

Go through JD below and let me know. We have an exciting opportunity for a Sr. Backend Developer (Java Microservices/API) position with one of our clients. The role offers flexibility with remote work, but the candidate should be open to traveling to Cleveland once every 2-3 months or as required by the client. Position: Sr. Backend Developer (Java Microservices/API) Location: Remote / Onsite in Cleveland (occasional travel required) Type: [Contract / Full-time choose whichever applies] Job Su
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Posted 1 day ago | Updated 7 hours ago

REMOTE:: Sr. Backend Developer (Java Microservices/API) - Payment Apps zelle , cashApp, Venmo

FutureTech Consultants LLC

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Remote

Contract, Third Party

Hello, Greetings.! This is Hima from Appridat Solutions LLC. I was reviewing your resume online and would like to talk to you regarding an exciting opportunity For Sr. Backend Developer (Java Microservices/API). We have with one of Appridat Solutions LLC premier clients. Position: Sr. Backend Developer (Java Microservices/API) Location: Remote / Onsite in Cleveland (3months once occasional travel required) Type: Contract Mandate :Payment Apps zelle , cashApp, Venmo Job Summary: We are seeking
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Posted 2 days ago | Updated 23 hours ago

Senior Backend Cloud Developer (.NET/Azure)

Main Sail, LLC

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Remote

Contract

Position Description: Team Composition and Methodology The client s team operates in an agile environment, utilizing a modified scrum methodology. The larger team includes approximately 30 professionals, split into smaller, focused groups of 5 7 members each, led by Team Leads. Each team has distinct roadmaps and features to deliver. The structure is cross-functional, including developers, testers, and DevOps engineers, with access to dedicated environments. Client Overview Our client's customer
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Posted 1 day ago | Updated 9 hours ago

Lead/Sr Java Backend Developer (Java, Backend, Kafka, Spring Boot, Microservices)

Brillio, LLC

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Remote

Full-time, Third Party

Role: Lead/Sr Java Backend Developer (Java, Backend, Kafka, Spring Boot, Microservices) Years of Experience: 10+ years Location: Remote Job Description: Skills: Java, Spring boot, REST API, Kafka, Microservices Contributing to all stages of software development lifecycle Coding, unit testing, implementation, deploying builds, troubleshooting Production and environmental issues, coordination with QA, App Support & Business Design, implement and maintain application Analyzing user requirements to
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Posted 25 days ago | Updated 4 days ago

Senior Full Stack Developer

Motion Recruitment Partners, LLC

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Fairfax, Virginia, USA

Full-time

A fast-paced, data-driven fintech company in Fairfax, VA, is seeking a Senior Backend Engineer to join their hybrid team. Their tech stack includes Python, Ruby on Rails, SQL, Snowflake, AWS, and React, with a strong emphasis on large-scale data processing and direct collaboration with end users. This innovative team works closely with traders to prototype and deliver data-driven applications, in Python / Ruby on Rails, that support real-time decision-making. The role is highly autonomous and id
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Posted 3 days ago | Updated 9 hours ago

Senior Backend Software Engineer

Pinterest, Inc.

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Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility
Posted 11 days ago | Updated moments ago

Mid-Level Back-End Developer

Maximus, Inc.

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Remote

Full-time

Description & Requirements Maximus is seeking a Mid-Level Back End Developer to join our team! The Mid-Level Back End Developer provides subject matter proficiency for work described in the task. Responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Typical duties include analysis, planning, developing requirements documents, building functional models, developing procedures, developing functional architectures, and other
Posted 13 days ago | Updated 7 hours ago

Backend Senior Software Engineer

Parsons Services Company

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Remote

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is looking for an amazingly talented Backend Senior Software Engineer to joi
Posted moments ago

Backend Developer with Mobile Apps (W2-Contract)

Techouts, Inc

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Remote

Contract

Backend Developer with Mobile Apps Duration: 9+ months Engagement type: REMOTE Consultant must work on our Company Payroll (W2-Contract) Senior Backend Software Developer / Mobile Apps. Will report to the Director of Infrastructure and work closely with Product Managers to deliver well-architected experiences to the customer base. Responsibilities: Improve the performance of the backend services that power our mobile application and make them more maintainable and scalable Design, build, and sca
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Posted 31 days ago | Updated 29 days ago

Senior Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

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Remote or Eagan, Minnesota, USA

Full-time

Senior Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Senior Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role:
Posted 60+ days ago | Updated moments ago

Senior Backend Engineer

Oscar Technology

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Remote

Full-time

Job Title: Senior Backend Engineer - Python / AI / LLMs Location: Remote (U.S. preferred) Employment Type: Full-time Salary: $120,000 - $180,000 + equity Benefits: Competitive healthcare, flexible PTO, remote-first culture, home office stipend, wellness allowance, learning & development budget About Us We're a fast-moving startup on a mission to build AI-powered tools that make complex work simple, faster, and more intelligent. We leverage cutting-edge large language models (LLMs) to solve real
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Posted 3 days ago | Updated 1 hour ago

Senior Backend Engineer

LabCorp

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Remote or Westborough, Massachusetts, USA

Full-time

Ovia Health, a wholly-owned subsidiary of Labcorp, offers a preventative and proven platform trusted by over 22 million families for daily personalized health engagement with high-touch support, 50+ clinical programs and research validation from 60+ peer-reviewed publications and 35+ partnerships with world-renowned research institutions. Our mobile apps and comprehensive digital solutions for fertility, pregnancy, and parenting empower people to take control of their health and navigate parenth
Posted 5 days ago | Updated moments ago

Java Backend Application Senior Developer - C14 - JERSEY CITY

Citi

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Remote or Jersey City, New Jersey, USA

Full-time

Job Description The Account Master Central (AMC) team within Institutional Service Group (ISG) is seeking a Senior Java Backend Lead Developer to join our engineering team in NJ. Potential candidates MUST have experience with and are enthusiastic about developing all areas of middle-tier and back-end system programming. The responsibilities of this position include but are not limited to: writing large scale Java programs in pure core Java to facilitate both batch and real-time processing. All p
Posted 19 days ago | Updated moments ago

Senior Backend Engineer

Kforce Technology Staffing

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Remote or Orlando, Florida, USA

Full-time

RESPONSIBILITIES: Kforce is working with a client in search of a Senior Backend Engineer to join their team! This position is full-time, direct hire and remote with the ability to work PST hours. Summary: As a Senior Backend Engineer, you will design, build, and maintain the core services, APIs, and integrations that power our platform. You'll collaborate with world-class engineers to deliver resilient, high-performance systems. Responsibilities: * Senior Backend Engineer will design, build, a
Posted 9 days ago | Updated 1 hour ago

Senior Backend Engineer - Remote

Jobot

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Remote or CA

Full-time

100% remote role working at a Series A AI startup! This Jobot Job is hosted by: Brandon Bays Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $100,000 - $140,000 per year A bit about us: Location: Remote (Canada - prefer Toronto but open to other areas for the right candidate) Compensation: $100-140K base + equity (0.2-0.3%) Employment Type: Full-time We're working with a stealthy, fast-moving legal AI startup that's making major strides in
Posted 9 hours ago | Updated 4 hours ago

Senior Backend Engineer - Remote

Jobot

•

US

Full-time

100% remote role working at a Series A AI startup! This Jobot Job is hosted by: Brandon Bays Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $170,000 - $220,000 per year A bit about us: Location: Remote (United States - prefer EST or CST time zone but open to any time zone for the right candidate) Compensation: $170-220K base + equity (0.5-0.7%) Employment Type: Full-time We're working with a stealthy, fast-moving legal AI startup that's
Posted 9 hours ago | Updated 4 hours ago

Senior Backend Engineer - Remote

Jobot

•

US

Full-time

100% remote role working at a Series A AI startup! This Jobot Job is hosted by: Brandon Bays Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $170,000 - $220,000 per year A bit about us: Location: Remote (United States - prefer EST or CST time zone but open to any time zone for the right candidate) Compensation: $170-220K base + equity (0.5-0.7%) Employment Type: Full-time We're working with a stealthy, fast-moving legal AI startup that's
Posted 1 day ago | Updated 4 hours ago