Backend Developer Jobs in Philadelphia

Backend Developer jobs in Philadelphia hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $190,338/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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sig.com · HQ: Bala Cynwyd, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 1987 · Hiring 225, 8 new
HQ: Bala Cynwyd, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 1987 · Hiring 225, 8 new
Susquehanna International Group is a privately held quantitative trading firm headquartered in Bala Cynwyd near Philadelphia, Pennsylvania, that makes markets and trades across essentially all listed financial products with a focus on derivatives. It was founded in 1987 by a group of college friends who had traded on the floor of the Philadelphia Stock Exchange, and it also runs institutional sales, growth equity and venture capital arms, with offices in New York, Chicago, Dublin, London, Sydney, Hong Kong and Mumbai. It hires software developers in C++ and C#, quantitative researchers and traders, network and systems engineers, business operations analysts and interns and graduates.
No named decision-maker yet.
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Verified live · 1 hour ago Visa sponsor 1 day ago Hiring now · 90%

Python Developer | Sports & Predictions | Experienced Hire

≈ $126k – $247k per year (Estimated) · Middle · 3+ years exp · In office (Philadelphia, United States) · Senior
SQL
Python
Python
Flask
FastAPI
AI/ML
Pandas
NumPy
Machine Learning
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Software Developer | Trade Finance and Internal Positions | Experienced Hire

≈ $151k – $280k per year (Estimated) · Senior · 5+ years exp · In office (Philadelphia, United States) · Senior
C#
SQL
C#
.NET
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Verified live · 1 hour ago Visa sponsor 13 days ago Fading · 34%

Software Developer | C++ | ETF | Experienced Hire

≈ $156k – $290k per year (Estimated) · Senior · 5+ years exp · In office (Philadelphia, United States) · Bachelor's Degree · Senior
C++
AI/ML
Machine Learning
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Ascensus

ascensus.com
ascensus.com · HQ: Greensboro, United States · Wealth Management & Financial Advisors · Custody & Fund Administration · 1001-5000 employees · Likely startup · Trust B · Hiring 44, 5 new
HQ: Greensboro, United States · Wealth Management & Financial Advisors · Custody & Fund Administration · 1001-5000 employees · Likely startup · Trust B · Hiring 44, 5 new
Ascensus helps millions of people save for what matters-retirement, education, and healthcare. We're also one of the savings plan industry's leading providers of outsourced services. Our technology, market insights, and business knowledge enhance the growth and success of our partners, their clients, and savers.
No named decision-maker yet.
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Verified live · 9 hours ago 1 day ago Hiring now · 90%

Software Engineer

$65k – $150k per year · Senior · 5+ years exp · Needham · Hartford · Boston · Nashville · Philadelphia · Remote (United States) · Bachelor's Degree · Full-Time · Senior
SQL
AI/ML
Langfuse
Cursor
Prompt Engineering
Model Context Protocol
Claude Code
RAG
LLM
DevOps
Azure DevOps
Azure
QA
Postman
+3
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Verified live · 9 hours ago 2 months ago Long shot · 12%

Associate Software Engineer

≈ $76k – $157k per year (Estimated) · Junior · 2+ years exp · In office (Philadelphia, United States) · Full-Time · Junior
CI/CD
Management
Scrum
Agile
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Transamerica

transamerica.com
transamerica.com · HQ: Baltimore, United States · Asset Management & Funds · Life Insurance & Annuities · 5000+ employees · Est. 1928 · Trust A · Hiring 139, 19 new
HQ: Baltimore, United States · Asset Management & Funds · Life Insurance & Annuities · 5000+ employees · Est. 1928 · Trust A · Hiring 139, 19 new
Transamerica is a US life insurance, retirement and investment company headquartered in Baltimore, Maryland, and a subsidiary of the international insurance group Aegon. Its businesses include World Financial Group and Transamerica Financial Advisors, protection solutions with life insurance and annuities, workplace retirement plans and Transamerica Asset Management, with large offices in Cedar Rapids, Denver, Philadelphia and Baltimore. It hires actuarial, finance and accounting staff, compliance and risk analysts, retirement plan specialists, client executives, channel marketers, fund administrators and IT professionals.
No named decision-maker yet.
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Verified live · 3 hours ago 2 days ago Hiring now · 90%

Intermediate Software Engineer

$80k – $92k per year · Middle · 1+ year exp · Hybrid (Cedar Rapids, Denver, Philadelphia, United States) · Relocation · Bachelor's Degree · Full-Time · Middle
Java
Python
TypeScript
JavaScript
SQL
Java
Maven
Apache Camel
Spring Framework
Databases
Oracle
DynamoDB
Frontend
Angular
DevOps
Amazon ECS
Jenkins
GitHub
Terraform
Rest API
Docker
CI/CD
AWS
AWS Lambda
Amazon CloudWatch
Amazon EventBridge
Amazon S3
IAM
Kubernetes
Management
Agile
+18
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Top 25% payVerified live · 3 hours ago 14 days ago Hiring now · 87%

Principal Quality Software Engineering

$190k – $200k per year · Lead · 1+ year exp · In office (Denver, Cedar Rapids, Philadelphia, United States) · Bachelor's Degree · Full-Time · Principal
C#
SQL
TypeScript
Java
JavaScript
Java
Maven
C#
ASP.NET Core
Frontend
Vue.js
Angular
React.js
DevOps
OpenShift
Bitbucket
Jenkins
Git
Docker
Kubernetes
CI/CD
AWS
QA
Selenium
+11
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Accenture

accenture.com
accenture.com · HQ: Dublin, Ireland · Business Process Outsourcing (BPO) · Systems Integrators · Management Consulting · IT Consulting & Digital Transformation · 5000+ employees · Est. 1989 · IT services · Trust A · Hiring 5348, 451 new
HQ: Dublin, Ireland · Business Process Outsourcing (BPO) · Systems Integrators · Management Consulting · IT Consulting & Digital Transformation · 5000+ employees · Est. 1989 · IT services · Trust A · Hiring 5348, 451 new
Accenture is a professional services company that began as the consulting arm of the accounting firm Arthur Andersen, separated as Andersen Consulting in 1989 and took its present name in 2001. It is one of the largest technology services organisations in the world, employing well over seven hundred thousand people and running strategy, consulting, technology, operations and industry work for most of the Fortune Global 500. Incorporated in Dublin and built on a delivery network concentrated in India and the Philippines, it has reoriented around cloud migration, cybersecurity and generative AI, which it now books as a distinct multi-billion dollar revenue line.
Angie Park · Chief Financial Officer · decision-maker
Julie Sweet · Chair & Chief Executive Officer · decision-maker
George Shaheen · Founding Chief Executive of Andersen Consulting · founder
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Top 25% payVerified live · 2 hours ago 2 days ago Hiring now · 75%

AI Native Software Engineer

$94k – $316k per year · Staff+ · 12+ years exp · Hybrid (Chicago, Milwaukee, Dallas, Columbus, Kirkland, United States) · Associate's Degree · Full-Time · Principal
Go
C#
TypeScript
JavaScript
Python
AI/ML
Embeddings
Function Calling
Anthropic
Context Engineering
OpenAI
AI Agents
LangGraph
OpenAI SDK
CrewAI
OpenAI Agents SDK
LangChain
Claude
DevOps
Helm
SLI/SLO/SLA
Terraform
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
Cybersecurity
Least Privilege
+19
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Top 25% payVerified live · 2 hours ago 19 days ago Long shot · 13%

AI-Native Software Engineering Americas Market

$70k – $235k per year · Middle · 3+ years exp · Hybrid (Chicago, Milwaukee, Dallas, Columbus, Kirkland, United States) · Bachelor's Degree · Full-Time · Middle
Go
C#
TypeScript
JavaScript
Python
AI/ML
Embeddings
Function Calling
Structured Outputs
Context Engineering
AI Agents
LangGraph
OpenAI SDK
CrewAI
OpenAI Agents SDK
LangChain
Claude
DevOps
Helm
Terraform
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
+16
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Top 25% payVerified live · 2 hours ago 1 month ago Long shot · 16%

Adobe Journey Optimizer (AJO) Application Architect

$94k – $266k per year · Staff+ · 6+ years exp · In office (New York, Milwaukee, Dallas, Columbus, Kirkland, United States) · Associate's Degree · Full-Time · Architect
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Comcast

comcast.com
comcast.com · HQ: Philadelphia, United States · Telecommunications · Government · Streaming & OTT Platforms · Broadband · Broadcasting · 5000+ employees · Est. 1963 · NYSE: CCZ · Trust A · Hiring 548, 87 new
HQ: Philadelphia, United States · Telecommunications · Government · Streaming & OTT Platforms · Broadband · Broadcasting · 5000+ employees · Est. 1963 · NYSE: CCZ · Trust A · Hiring 548, 87 new
Comcast is an American media and telecommunications group founded in 1963 that grew from a single cable system in Mississippi into the largest broadband provider in the United States. Its connectivity business supplies internet, video, mobile and business services under the Xfinity brand, and it owns NBCUniversal, which combines broadcast and cable networks, the Universal film and television studios, the Peacock streaming service and theme parks, alongside the British operator Sky. Headquartered in Philadelphia and listed on Nasdaq, it separated most of its cable networks into a standalone company in 2025.
Jason Armstrong · Chief Financial Officer · decision-maker
Brian Roberts · Chairman and Chief Executive Officer · decision-maker
Ralph Roberts · Founder · founder
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Verified live · 1 hour ago 3 days ago Hiring now · 90%

Sr. Software Engineer - Cloud Security

≈ $95k – $176k per year (Estimated) · Senior · 7+ years exp · In office (Philadelphia, United States) · Full-Time · Senior
Python
TypeScript
Python
FastAPI
Databases
PostgreSQL
ElasticSearch
OpenSearch
Snowflake
Databricks
AI/ML
LLM
AI Agents
DevOps
AWS Fargate
AWS Lambda
Amazon EC2
Amazon ECS
Amazon CloudWatch
Amazon S3
IAM
Docker
CI/CD
AWS
+12
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Verified live · 1 hour ago 8 days ago Hiring now · 78%

Principal Engineer, Xfinity Mobile Systems & Software Architecture

≈ $101k – $201k per year (Estimated) · Lead · 10+ years exp · In office (Philadelphia, United States) · Full-Time · Principal
Apache Kafka
DevOps
Rest API
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Verified live · 1 hour ago 9 days ago Hiring now · 78%

Principal Software Engineer, WiFi Motion

≈ $103k – $207k per year (Estimated) · Lead · 10+ years exp · In office (Philadelphia, United States) · Bachelor's Degree · Full-Time · Principal
C++
Java
Python
AI/ML
Quantization
LiteRT
DevOps
Wi-Fi
Linux
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GSK

gsk.com
gsk.com · HQ: London, United Kingdom · Oncology Therapeutics · Infectious Disease Therapeutics · Vaccines · Prescription Drugs · 1001-5000 employees · Est. 2000 · Trust A · Hiring 706, 258 new
HQ: London, United Kingdom · Oncology Therapeutics · Infectious Disease Therapeutics · Vaccines · Prescription Drugs · 1001-5000 employees · Est. 2000 · Trust A · Hiring 706, 258 new
GSK is a British multinational pharmaceutical company that develops and manufactures prescription medicines and vaccines, with research focused on infectious diseases, HIV, respiratory and immunology, and oncology. It was formed in 2000 through the merger of Glaxo Wellcome and SmithKline Beecham and spun off its consumer healthcare business as Haleon in 2022. Listed in London and New York, it runs research, manufacturing and commercial operations worldwide. The company is headquartered in London, England, United Kingdom.
Anastasia Maksimova · HR
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Verified live · 29 min ago 4 days ago Likely open · 63%

Staff, Full Stack Engineer

≈ $225k – $419k per year (Estimated) · Staff+ · 10+ years exp · Hybrid (Philadelphia, Durham, United States) · Bachelor's Degree · Full-Time · Staff
Function Calling
LLMOps
Model Context Protocol
LLM
Machine Learning
AI Agents
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Verified live · 29 min ago 4 days ago Likely open · 63%

Senior, Full Stack Engineer

≈ $193k – $334k per year (Estimated) · Senior · Philadelphia · Durham · Remote (United States) · Bachelor's Degree · Full-Time · Senior
TypeScript
Python
JavaScript
AI/ML
Function Calling
LLMOps
LLM Guardrails
LLM
AI Agents
Machine Learning
Frontend
Next.js
React.js
DevOps
GCP
Azure
AWS
+6
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Cognizant

cognizant.com
cognizant.com · HQ: Teaneck, United States · Cloud Consulting & Migration · Engineering Services · IT Outsourcing & Dedicated Teams · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1994 · IT services · Trust A · Hiring 1390, 274 new
HQ: Teaneck, United States · Cloud Consulting & Migration · Engineering Services · IT Outsourcing & Dedicated Teams · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1994 · IT services · Trust A · Hiring 1390, 274 new
Cognizant is an American information technology services and consulting company founded in 1994 as an in-house technology unit of Dun and Bradstreet in Chennai, India, and headquartered in Teaneck, New Jersey. It builds, integrates and operates software and infrastructure for large enterprises, with particularly deep positions in healthcare, financial services, insurance and life sciences, delivered by a global workforce of more than three hundred thousand people concentrated in India. Listed on Nasdaq, the company competes with the large Indian and global systems integrators and has reoriented its offerings around cloud migration, data platforms and AI-assisted engineering.
Jatin Dalal · Chief Financial Officer · decision-maker
Ravi Kumar · Chief Executive Officer · decision-maker
Kumar Mahadeva · Founder & former Chief Executive Officer · founder
Francisco D'Souza · Co-Founder & former Chief Executive Officer · founder
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Verified live · 2 hours ago 7 days ago Likely open · 60%

.NET Full Stack Lead

$50k – $93k per year · Equity · Lead · 5+ years exp · Philadelphia · Remote (United States) · Bachelor's Degree · Full-Time · Staff
Node JS
C#
JavaScript
SQL
TypeScript
C#
ASP.NET Core
Entity Framework Core
xUnit
Databases
Oracle
MS SQL
AI/ML
Embeddings
OpenAI
RAG
Frontend
Bootstrap
Angular
DevOps
OpenShift
SOAP
Rest API
Git
Kubernetes
Azure
Management
Microsoft Project
Agile
QA
Swagger
+16
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NORR

norr.com
norr.com · Chicago · Philadelphia · Detroit · Toronto · Ottawa · Engineering Services · Architecture · 1-10 employees · Trust A · Hiring 51, 1 new
Chicago · Philadelphia · Detroit · Toronto · Ottawa · Engineering Services · Architecture · 1-10 employees · Trust A · Hiring 51, 1 new
NORR is a global team of 800 architects, engineers, planners, and interior designers sharing ideas to create and innovate together.
No named decision-maker yet.
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Verified live · 2 hours ago 8 days ago Hiring now · 90%

Technical Architect, Industrial

$80k – $110k per year · Staff+ · In office (Philadelphia, United States) · Architect
AutoCAD
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Verified live · 2 hours ago 30 days ago Hiring now · 90%

Senior Technical Architect, Health Sciences

$105k – $140k per year · Staff+ · 10+ years exp · In office (Philadelphia, United States) · Architect
AutoCAD
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Verified live · 2 hours ago 7 months ago Long shot · 14%

Technical Architect, Residential

$70k – $95k per year · Staff+ · 4+ years exp · In office (Philadelphia, United States) · Architect
AutoCAD
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Elsevier

elsevier.com
elsevier.com · HQ: Amsterdam, Netherlands · Clinical Decision Support · Scientific & Lab Software · Publishing · 1001-5000 employees · Est. 1880 · Trust B · Hiring 184, 15 new
HQ: Amsterdam, Netherlands · Clinical Decision Support · Scientific & Lab Software · Publishing · 1001-5000 employees · Est. 1880 · Trust B · Hiring 184, 15 new
Elsevier is a Dutch scientific, technical and medical information and analytics company headquartered in Amsterdam that publishes journals and books and builds research and clinical decision tools such as ScienceDirect, Scopus and ClinicalKey. Founded in 1880 and owned by the RELX group, it serves researchers, universities, hospitals and healthcare professionals worldwide, with large offices in London, Oxford, Philadelphia, New York, Chennai and Bengaluru. It hires software, data and site reliability engineers, AI engineers, product managers, journal editors, publishing and client success consultants, and solution and sales consultants.
No named decision-maker yet.
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Verified live · 8 hours ago Visa sponsor 10 days ago Likely open · 56%

Senior Software Engineer I

$87k – $144k per year · Senior · 4+ years exp · In office (Philadelphia, United States) · Full-Time · Senior
Java
Python
AI/ML
LangGraph
LangChain
LLM
Semantic Search
Knowledge Graph
DevOps
Amazon EKS
Kubernetes
CI/CD
AWS
Management
Kanban
Agile
+5
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Verified live · 8 hours ago Visa sponsor 1 month ago Fading · 29%

React Node Senior Software Engineer I

$87k – $144k per year · Senior · In office (Philadelphia, United States) · Full-Time · Senior
Node JS
JavaScript
AI/ML
Machine Learning
Frontend
React.js
DevOps
CI/CD
Management
Agile
Apply
Verified live · 8 hours ago Visa sponsor 1 month ago Long shot · 21%

ReactJS Java API Software Engineer

$79k – $131k per year · In office (Philadelphia, United States) · Full-Time
Java
SQL
Java
Spring Boot
Databases
MS SQL
DevOps
Rest API
Management
Waterfall
Agile
Apply

M&T Bank

mtb.com
mtb.com · HQ: Buffalo, United States · Financial Services · Wealth Management & Financial Advisors · Commercial & Retail Banks · 1001-5000 employees · Est. 1856 · NYSE: MTB · Trust B · Hiring 493, 58 new
HQ: Buffalo, United States · Financial Services · Wealth Management & Financial Advisors · Commercial & Retail Banks · 1001-5000 employees · Est. 1856 · NYSE: MTB · Trust B · Hiring 493, 58 new
M&T Bank is an American regional bank founded in Buffalo in 1856 to serve manufacturers and traders, and it has grown into one of the larger commercial banks in the northeastern United States. It concentrates on commercial and business banking, commercial real estate lending and retail branches across New York, the mid-Atlantic and New England, a footprint substantially enlarged by its 2022 acquisition of People's United Financial. Headquartered in Buffalo and listed on the New York Stock Exchange, it has a long-standing reputation for conservative credit underwriting through economic cycles.
Anthony Gabello · Executive Officer, Director · decision-maker
Daryl Bible · Chief Financial Officer · decision-maker
René Jones · Chairman and Chief Executive Officer · decision-maker
P Homer · Director
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Verified live · 2 hours ago Visa sponsor 10 days ago Likely open · 63%

Software Engineer - .Net / API

$89k – $148k per year · Senior · 5+ years exp · In office (Philadelphia, United States) · Associate's Degree · Full-Time · Senior
SQL
C#
C#
.NET
DevOps
Azure DevOps
GitHub
Azure
Management
Agile
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pcacares_org

pcacares.org
pcacares.org · Philadelphia · Early Childhood Education · Nonprofits & Foundations · 201-500 employees · Hiring 5
Philadelphia · Early Childhood Education · Nonprofits & Foundations · 201-500 employees · Hiring 5
About Helpline: 215-765-9040 [email protected] Report Older Adult Abuse 24/7 Request Assistance Form You are using an unsupported version of Internet Explorer. To ensure security, performance, and full functionality, please upgrade to an up-to-date browser.
No named decision-maker yet.
No careers mailbox known
Verified live · 3 hours ago 13 days ago Hiring now · 75%

Junior Software Developer

≈ $81k – $166k per year (Estimated) · Junior · In office (Philadelphia, United States) · PhD · Junior
PHP
C#
JavaScript
SQL
Python
Analytics
Microsoft Excel
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URBN

urbn.com
urbn.com · HQ: Philadelphia, United States · Online Rental Platforms · Retail & Shop Systems · Apparel & Fashion Brands · 1001-5000 employees · Est. 1970 · Trust A · Hiring 590, 63 new
HQ: Philadelphia, United States · Online Rental Platforms · Retail & Shop Systems · Apparel & Fashion Brands · 1001-5000 employees · Est. 1970 · Trust A · Hiring 590, 63 new
URBN is the Philadelphia-based parent of a portfolio of consumer lifestyle brands, operating Urban Outfitters, Anthropologie, Free People, FP Movement, Terrain, Anthropologie Weddings, Menus & Venues and the Nuuly clothing rental service. The company traces its roots to a single Urban Outfitters store opened near the University of Pennsylvania in 1970, is listed on Nasdaq and sells through stores, websites and wholesale channels in North America and Europe. Hiring spans store sales associates and team leaders, visual merchandising, buying and merchandise planning, design, marketing analytics, distribution center supervisors and technology roles such as iOS engineers and business analysts.
No named decision-maker yet.
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Verified live · 23 min ago 13 days ago Fading · 43%

URBN Software Engineer II

≈ $70k – $138k per year (Estimated) · Middle · 2+ years exp · In office (Philadelphia, United States) · Middle
Python
Databases
Apache Kafka
AI/ML
OpenAI Codex
Claude Code
AI Agents
DevOps
GCP
CI/CD
Apply
Verified live · 23 min ago 13 days ago Fading · 44%

URBN Senior Software Engineer

≈ $82k – $152k per year (Estimated) · Senior · 7+ years exp · In office (Philadelphia, United States) · Senior
Python
Apply
Verified live · 23 min ago 28 days ago Fading · 25%

URBN Staff Engineer, GenAI

≈ $103k – $192k per year (Estimated) · Staff+ · 1+ year exp · In office (Philadelphia, United States) · Bachelor's Degree · Staff
Python
Python
FastAPI
AI/ML
LangGraph
Fine-tuning
Multimodal AI
Diffusion Models
CrewAI
Gemini
Google ADK
Hugging Face
A2A
Agentic Workflows
Cursor
Model Context Protocol
Claude Code
PyTorch
Copilot
AI Agents
Stable Diffusion
LoRA
dbt
Embeddings
ControlNet
DreamBooth
PEFT
Textual Inversion
Computer Vision
LangChain
Prompt Engineering
LLM
Frontend
GraphQL
DevOps
Terraform
Docker
CI/CD
Design
Adobe Photoshop
Figma
+28
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Repisodic

repisodic.com
repisodic.com · HQ: Philadelphia, United States · Care Coordination & Population Health · Hospital Operations Software · 11-50 employees · Est. 2017 · Startup · Hiring 1
HQ: Philadelphia, United States · Care Coordination & Population Health · Hospital Operations Software · 11-50 employees · Est. 2017 · Startup · Hiring 1
Streamline hospital discharge planning with Repisodic. Automate workflows, ensure compliance, and improve post-acute care transitions.
Michael Cwalinski · Executive Officer, Director · decision-maker
Ryan Miller · Director
David Keith · Director
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Verified live · 4 hours ago 14 days ago Hiring now · 71%

Senior Software Engineer

≈ $121k – $225k per year (Estimated) · Senior · 7+ years exp · Hybrid (Philadelphia, United States) · Senior
JavaScript
SQL
Python
DevOps
CloudFormation
Terraform
Rest API
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
+4
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Report

Trella Health

trellahealth.com
trellahealth.com · HQ: Atlanta, United States · Health Data & Interoperability · 51-200 employees · Est. 2015 · Hiring 4, 1 new
HQ: Atlanta, United States · Health Data & Interoperability · 51-200 employees · Est. 2015 · Hiring 4, 1 new
Trella Health is a healthcare data analytics company that provides services to over 30,000 users nationwide, including top home health agencies, hospice providers, and skilled nursing facilities. Their platform integrates market data with a CRM solution to offer insights that improve sales execution and performance visibility in the post-acute care industry. By leveraging EHR and API integrations, Trella Health enables real-time referral tracking and helps healthcare organizations optimize their growth strategies.
No named decision-maker yet.
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Verified live · 3 hours ago 14 days ago Hiring now · 76%

Senior Software Engineer

≈ $121k – $225k per year (Estimated) · Senior · 7+ years exp · Hybrid (Philadelphia, United States) · Senior
JavaScript
SQL
Python
DevOps
CloudFormation
Terraform
Rest API
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
+4
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R&P Technologies

rp-tech.net
rp-tech.net · Philadelphia · Washington · Chesapeake · National City · Pascagoula · 501-1000 employees · Est. 2000 · Hiring 21, 5 new
Philadelphia · Washington · Chesapeake · National City · Pascagoula · 501-1000 employees · Est. 2000 · Hiring 21, 5 new
SUPPORTING TOMORROW'S NAVY TODAY. To provide affordable, high quality engineering and technical services to our Government and commercial customers by empowering our employees to meet our customers' needs and treating our employees as our most valuable resource.
No named decision-maker yet.
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Verified live · 4 hours ago 17 days ago Fading · 31%

Java Developer for Machinery Control Systems

≈ $96k – $188k per year (Estimated) · Middle · 3+ years exp · In office (Philadelphia, United States) · Bachelor's Degree · Secret · Middle
MATLAB
Java
MATLAB
Simulink
Simulink Coder
DevOps
Git
Linux
Cybersecurity
SonarQube
Apply

T-Mobile

t-mobile.com
t-mobile.com · HQ: Bellevue, United States · Broadband · Mobile Networks · 5000+ employees · Est. 2001 · Trust B · Hiring 1886, 209 new
HQ: Bellevue, United States · Broadband · Mobile Networks · 5000+ employees · Est. 2001 · Trust B · Hiring 1886, 209 new
T-Mobile US is a major American telecommunications carrier headquartered in Bellevue, Washington, operating as a publicly traded subsidiary majority-owned by Deutsche Telekom. The company provides nationwide wireless voice, data, and 5G mobile services alongside fixed wireless home internet to over 140 million subscribers. Known for its consumer-centric "Un-carrier" strategy, T-Mobile delivers connectivity through its flagship brand as well as prepaid subsidiaries like Metro by T-Mobile and Mint Mobile.
No named decision-maker yet.
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Top 25% payVerified live · 1 hour ago Visa sponsor 18 days ago Likely open · 53%

T-Ads Principal Engineer, Platform

$163k – $327k per year · Equity · Lead · 7+ years exp · In office (Philadelphia, New York, Bellevue, United States) · Bachelor's Degree · Full-Time · Principal
CI/CD
AWS
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Boeing

boeing.com
boeing.com · HQ: Arlington, United States · Aerospace Manufacturing · Combat Aircraft · Aircraft Manufacturing · 1001-5000 employees · Est. 1916 · Trust A · Hiring 684, 147 new
HQ: Arlington, United States · Aerospace Manufacturing · Combat Aircraft · Aircraft Manufacturing · 1001-5000 employees · Est. 1916 · Trust A · Hiring 684, 147 new
Boeing is a global aerospace manufacturer and defense contractor specializing in commercial jetliners, military aircraft, satellites, and space systems. Headquartered in Arlington, Virginia, United States, the company operates across three main business divisions: Commercial Airplanes; Defense, Space & Security; and Global Services. Through aircraft engineering, defense hardware production, and worldwide fleet support, the enterprise serves commercial airlines, armed forces, and government partners across more than 150 countries.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 1 hour ago 22 days ago Likely open · 45%

Senior Airworthiness Software Certification Engineer

$122k – $191k per year · Senior · 10+ years exp · Hybrid (Philadelphia, Oklahoma City, Huntington Beach, Huntsville, Phoenix, United States) · Relocation · Bachelor's Degree · Full-Time · Secret · Senior
CI/CD
Management
Waterfall
Scrum
Agile
SpaceTech
DO-178C
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Perpay

perpay.com
perpay.com · HQ: Philadelphia, United States · Marketplaces · Buy Now, Pay Later · 51-200 employees · Est. 2016 · Trust D · Hiring 19
HQ: Philadelphia, United States · Marketplaces · Buy Now, Pay Later · 51-200 employees · Est. 2016 · Trust D · Hiring 19
Perpay is a certified B Corp that offers consumers with subprime credit a way to shop and spend now and pay back automatically each time they get paid, while building credit. It serves more than 500,000 customers and hires engineers, data scientists and financial analysts. The company is headquartered in Philadelphia, Pennsylvania, United States.
No named decision-maker yet.
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Verified live · 1 hour ago Visa sponsor 23 days ago Fading · 37%

Super Day - Software Engineer, New Grad

≈ $82k – $169k per year (Estimated) · Junior · In office (Philadelphia, United States) · Relocation · Bachelor's Degree · Junior
Python
TypeScript
JavaScript
Python
Flask
Django
Frontend
Vue.js
Angular
Redux
React.js
Mobile
React Native
DevOps
Rest API
Terraform
Docker
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Likely inactiveVerified live · 1 hour ago Visa sponsor 6 months ago Long shot · 5%

Senior Software Engineer, Backend

≈ $123k – $229k per year (Estimated) · Senior · 5+ years exp · In office (Philadelphia, United States) · Relocation · Senior
Python
JavaScript
Python
Django
Celery
Flask
Databases
Redis
PostgreSQL
Frontend
Redux
React.js
Mobile
React Native
DevOps
Datadog
Amazon CloudWatch
Rest API
Docker
Kubernetes
CI/CD
AWS
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VetsEZ

vetsez.com
vetsez.com · HQ: San Diego, United States · DevSecOps · AI Consulting & Integration · Digital Government · IT Consulting & Digital Transformation · 201-500 employees · Est. 2012 · Trust A · Hiring 51, 8 new
HQ: San Diego, United States · DevSecOps · AI Consulting & Integration · Digital Government · IT Consulting & Digital Transformation · 201-500 employees · Est. 2012 · Trust A · Hiring 51, 8 new
VetsEZ is a service-disabled veteran-owned small business that delivers digital services to US federal agencies, including the Department of Veterans Affairs, covering human-centred design, DevSecOps, cloud engineering, automation and applied AI. It is appraised at CMMI-DEV Level 3 and certified to ISO 9001, ISO 20000-1 and ISO 27001, and most of its staff work remotely across the United States. The company is headquartered in San Diego, California, United States.
No named decision-maker yet.
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Verified live · 2 hours ago 24 days ago Likely open · 55%

Ruby API Senior Developer (Remote Opportunity)

≈ $142k – $245k per year (Estimated) · Senior · 5+ years exp · Philadelphia · Remote (United States) · Bachelor's Degree · Full-Time · Public Trust · Senior
Ruby
JavaScript
Ruby
Ruby on Rails
Databases
MySQL
PostgreSQL
Frontend
React.js
DevOps
Rest API
Git
CI/CD
Management
Agile
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Capital One

capitalone.com
capitalone.com · HQ: McLean, United States · Leasing, Auto & Equipment Finance · Commercial & Retail Banks · Cards & Card Issuing · 5000+ employees · Est. 1994 · Trust B · Hiring 1483, 151 new
HQ: McLean, United States · Leasing, Auto & Equipment Finance · Commercial & Retail Banks · Cards & Card Issuing · 5000+ employees · Est. 1994 · Trust B · Hiring 1483, 151 new
Capital One is an American bank founded in 1994 that began as a credit card monoline built on statistical testing of offers and pricing, an approach it called information-based strategy. It is now one of the largest card issuers in the United States alongside a national direct bank, an auto lending business and a commercial bank, and it completed the acquisition of Discover in 2025, which gave it a payments network of its own rather than dependence on Visa and Mastercard. Headquartered in McLean, Virginia, it was also an early mover among large banks in migrating its entire technology estate to the public cloud.
Richard Fairbank · Founder, Chairman and Chief Executive Officer · decision-maker
Andrew Young · Chief Financial Officer · decision-maker
Nigel Morris · Co-founder · founder
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Top 25% payVerified live · 1 hour ago 28 days ago Fading · 43%

Full Stack Engineer 4

$215k – $246k per year · Senior · 7+ years exp · In office (New York, Philadelphia, United States) · Bachelor's Degree · Full-Time · Senior
Scala
Node JS
TypeScript
JavaScript
Python
Rust
C#
DevOps
Docker
GCP
Kubernetes
Azure
AWS
Bitbucket
GitHub
Git
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Management
Agile
+9
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Machines can read this selection · checked 22:12 UTC
Backend Developer Jobs in Philadelphia
Frequently asked questions
How many Backend Developer jobs in Philadelphia are available on Alion?
There are currently 34 active listings from 17 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Philadelphia pay?
The average salary is around $190,338 per year based on the current listings.
Are remote options available for Backend Developer jobs in Philadelphia?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Philadelphia?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.