backend developer Jobs in philadephia, pa

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Senior 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 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 60+ days ago | Updated 10 days ago

React Developer

Stellar IT Solutions

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Remote or Ann Arbor, Michigan, USA

Full-time, Part-time, Contract, Third Party

Job Title: React Developer Location: Remote Job Duration: 6+ Months Interview: Video Job Description: We are seeking a Mid to Senior-Level React Developer to support a legacy application modernization project. The role involves rewriting components of an existing WebForms application into a modern tech stack using React with TypeScript and a .NET Core API. The ideal candidate will be comfortable navigating legacy code and helping transition to the new architecture, with a strong focus on fro
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Posted 1 day ago | Updated moments ago

Backend Engineer (Python)

LanceSoft Inc.

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Remote

Contract

Key Requirements: Experience:4+ years of software development experience. If more experience, then they will go senior level title)Must have a BS degree in Computer Science or related fieldTechnical Skills:Python Strong experience (must-have)Data Structures & Algorithms RequiredAWS Practical experience requiredAI/ML:Prior ML experience (even if older) and at least 6 months of hands-on GenAI experience or solid exposureExperience working in a Generative AI-focused Soft Skills:Strong communication
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Posted 16 hours ago

BACKEND ENGINEER/ UI SOLUTION ARCHITECT

SUNRAY INFORMATICS

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Remote

Third Party, Contract

Hi Professionals, We have an immediate openings for the below role, If interested please apply. Job Title: BACKEND ENGINEER/ UI SOLUTION ARCHITECT Type :C2CInterview: Telephonic & RemoteJOB RESPONSIBILITIESOVERALL EXPERIENCE 12YRS+ We are seeking a Senior Backend Engineer / Solutions Architect to join our client s innovative engineering team. This role is ideal for a backend specialist with deep expertise in Node.js and TypeScript, who is confident designing scalable backend architectures within
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Posted 23 days ago | Updated 23 days ago

ADA Accessibility Developer---Front End

Allwyn Corporation

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Remote

Contract, Third Party

Position: Mobile & Web Developer with Angular/Ionic + ADA Location: Remote Duration: 4+ months Job Description: We are looking for a skilled Front-End Developer who can contribute across both mobile and web (.com) platforms. The ideal candidate will have hands-on experience with Angular and Ionic frameworks, and a strong understanding of ADA compliance to ensure accessibility standards are met across all digital experiences. Responsibilities: Develop and maintain responsive and accessible applic
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Posted 3 days ago

Python Backend Engineer

ACL Digital

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Remote or San Jose, California, USA

Full-time

Job Title: Python Backend Engineer - Systems & Integration Location: Remote bout We are building a next-generation virtual assistant platform that enables natural and responsive voice and chat-based interactions. The platform integrates with internal and external systems to deliver seamless, real-time user experiences at scale. s part of our growing team, we're looking for a skilled Python Backend Engineer to help us build reliable, high-performance backend systems. Role Overview: This role inv
Posted 37 days ago | Updated 4 hours ago

Opening for Mobile UI Developer :: Contract :: Remote

SOHO Square Solutions

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US

Third Party, Contract

Job Title: Mobile UI Developer Location: Remote Job Type: Contract Job Summary: Job Description: We are seeking a Mobile UI Developer with strong expertise in Kotlin, Java, and Spring frameworks to design, develop, and enhance high-quality mobile applications for our financial clients. The ideal candidate will be experienced in building secure, scalable mobile UI applications within the banking and financial services domain, ensuring seamless integration with backend services while deliveri
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Posted 19 hours ago | Updated 18 hours ago

Mobile & Web Developer with Angular/Ionic + ADA

Allwyn Corporation

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Remote

Contract, Third Party

Job Title: Mobile & Web Developer with Angular/Ionic + ADA Location: Remote Job Overview We are looking for a skilled Front-End Developer who can contribute across both mobile and web (.com) platforms. The ideal candidate will have hands-on experience with Angular and Ionic frameworks, and a strong understanding of ADA compliance to ensure accessibility standards are met across all digital experiences. Responsibilities: Develop and maintain responsive and accessible applications across mobile
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Posted 21 days ago | Updated 1 day ago

Back-End Software Engineer (Contractor)

Dimensional Fund Advisors LP

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Texas, USA

Full-time

Notes to applicants: Dimensional sees great value from collaborating in our offices and appreciates the benefits of flexibility. Most roles fit our office-first hybrid approach: We are together on our campuses Tuesdays, Wednesdays, and Thursdays and have the choice to work in the office or remotely, depending on what is best for that work day, on Mondays and Fridays. This approach maximizes in-person collaboration and interaction while simultaneously providing flexibility and applies to most rol
Posted 33 days ago | Updated 4 hours ago

Full Stack Developer

Maximus, Inc.

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Remote

Full-time

Description & Requirements 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 related management and technical duties. Requires expertise in specialty areas. Back-End Software D
Posted 16 days ago | Updated 8 hours ago

React Native Mobile Architect

Aptino

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Remote

Contract, Third Party

Job Description:We are seeking a highly skilled and experienced Senior React Native Developer / Mobile Architect to join our mobile development team. The ideal candidate will have a proven track record of building scalable and high-performance mobile applications using React Native and related technologies. You will be responsible for leading mobile architecture decisions, implementing robust features, and ensuring seamless cross-platform user experiences. Key Responsibilities:Design, develop, a
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Posted 14 days ago | Updated 1 day ago

P25-231186 - Software Engineer III

FedEx Office

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Remote or Memphis, Tennessee, USA

Full-time

About FedEx Dataworks: Born out of FedEx, a pioneer that ships nearly 20 million packages a day and manages endless threads of information, FedEx Dataworks is an organization rooted in connecting the physical and digital sides of our network to meet today's needs and address tomorrow's challenges. We are creating opportunities for FedEx, our customers, and the world at large by: Exploring and harnessing data to define and solve true problems Removing barriers between data sets to create new ave
Posted 1 day ago | Updated 4 hours ago

Java Backend Engineer || Citizens only || W2

Paradigm Infotech

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Remote

Contract

Role: Senior Java Backend Engineer Node JS Work mode: 100% remote Rate: $--/r on W2 no benefits. Visa: U.S. Citizenship + U.S.-based residency is required Not looking for Fullstack Engineers10+ years of exp6-12 months to hire Status: U.S. Citizenship + U.S.-based residency is requiredLocation: Remote - 9:00 - 5:00pm Central Time - the client is located in the southeastTechnologies: Node.js | TypeScript | Serverless Frameworks | AWS SAM | API documentation toolPractice Group: Consulting; Agile /
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Posted 1 day ago | Updated 1 day ago

Sr. Backend Engineer/Solutions Architect

LogiX-Guru

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Remote

Contract

Senior Backend Engineer / Solutions Architect (Node.js | Google Cloud Platform | TypeScript | Finance) Location: Remote Type: Full-time | Contract Client Industry: Financial Technology Key Responsibilities - Design and implement fraud prevention systems using Node.js and TypeScript - Develop and enhance device authentication mechanisms - Build payment intercept systems and fraud detection features - Integrate with Google Cloud Platform services (Spanner, BigQuery, Kubernetes) - Collaborate with
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Posted 16 days ago | Updated 2 days ago

Principal Engineer Cybersecurity, Cloud Security

URSI Technologies Inc.

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Remote

Contract

Job Title: Principal Engineer Cybersecurity, Cloud Security & High-Performance Systems Location: Remote (California) Duration: 12+ Months Role Overview: We are seeking a Principal Engineer with deep expertise in Cybersecurity, Secure Cloud Architectures, and High-Performance Systems. This role focuses on developing next-generation security platforms, real-time threat detection, and secure cloud services using Rust, Scala, and WebAssembly (WASM) on AWS. Key Responsibilities: Develop secure, perf
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Posted 15 days ago | Updated 1 day ago

Senior UI Developer

ST RXR Investments LLC

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Remote or Miami Beach, Florida, USA

Full-time, Third Party

Job Title:Senior UI Developer (3+ Years of Experience) Compensation: Up to 300k depending on experience. Location:Miami Beach, FL [Remote is Optional] Company:ST RXR Investments LLC Job Type:Full-time About Us:We are one of the two pioneers of high frequency automated trading, and a dynamic and innovative Hedge Fund focused on building a new cutting-edge high frequency, algorithmic trading platform. Our team is developing a trading interface integrated via API, designed to offer high-performance
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Posted 28 days ago | Updated 16 days ago

Team Lead, Java Developer

Govincorp

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Remote

Full-time

Seeking a highly skilled Team Lead, Java Developer to guide and mentor a team of developers in delivering high-quality backend services and APIs. The ideal candidate will possess strong technical expertise in Java, Go, PHP, Node.js, and MySQL, along with solid experience managing development teams and collaborating across functions to deliver scalable solutions. This position is 100% remote Responsibilities: Lead and manage a team of backend developers, providing technical direction and mentori
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Posted 17 days ago | Updated 3 days ago

Software Engineer, Backend

West Coast Consulting LLC

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Remote

Contract

Job Description Backend Engineer Remote Automation: designing and implementing systems to automate manual processes, with clear error handling, observability, and fallback mechanisms.Optimized Content Classification: integrating LLMs to parse through terabytes of content, classifying it, and refining over multiple rounds of processing.Systems Architecture: We need automation solutions that will stand the test of time within the broader Reddit ecosystem, and can be used for future classification
Posted 7 days ago | Updated 1 hour ago

Senior Backend Engineer (Node.js + TypeScript) - AI meets FinTech

HENRY

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Remote

Full-time

** Remote position ** Engineering scrums are at 9am EST Who We AreWe re a highly funded stealth startup that has built an institutional grade licensed exchange for trading illiquid real-world assets from commercial real estate to infrastructure, natural resources, and private credit. We re combining AI, deep regulatory infrastructure, and a modern tech stack to unlock trillions in global illiquid markets. What We re Looking ForWe re looking for a Senior Backend Engineer with strong experience bu
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Posted 15 days ago

SAP Fiori Consultant Position - REMOTE

Vailexa Technology LLC

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Remote

Contract

Role: SAP Fiori Consultant Location: REMOTE Job Type: Contract Job Overview: An experienced SAP Fiori Consultant (Min 6+ years) with strong understanding of SAP Fiori and SAP UI5 technologies, with hands-on experience in developing and deploying Fiori applications. Qualifications and Skills: SAP Fiori Consultant with a strong understanding of SAP Fiori/UI5, SAP Gateway, and OData services. Experience with SAP S/4HANA, SAP Fiori Launchpad, and custom Fiori application development. Knowledge of AB
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Posted 18 hours ago