3,643 senior developer jobs at 1,074 companies in Middletown, DE

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Senior Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEDesign, develop, and implement software across multiple languages; lead components; troubleshoot; mentor and guide developers; ensure secure, maintainable results. Must be a US citizen with SECRET clearance.
Python, C++, Java, C#, Go, Docker, Kubernetes, CI/CD
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Senior Developer
Philadelphia or Westmont
OnsiteFull Time
McCabe, Weisberg & Conway
McCabe, Weisberg & Conway: Provides legal services for the mortgage banking industry.
10+ YOE10+ years in C#, T-SQL, SQL Server, .NET; strong debugging; Excel/Outlook/PDF interfacing; excellent communication; full product life cycle; Agile.
C#, T-SQL, SQL Server, NET Framework, SSRS, Excel, Outlook, PDF, REST APIs, UiPath
3mo
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Senior Java Developer
Camden or Conshohocken
$145k-$165k/yr HybridFull Time
United States Cold Storage
United States Cold Storage: Provides temperature-controlled warehousing and cold chain logistics services.
8+ YOE8+ years of software development; expert Java and Spring; strong architecture and coding principles; event-driven patterns; observable, testable production systems; containerization; CI/CD; data modeling; API design.
Java, Spring, Hibernate, Kafka, RabbitMQ, Docker, Kubernetes, Terraform, Ansible, CI/CD, GitHub Actions, Jenkins, Dynatrace, Azure Monitor, OpenAPI
2mo
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Senior Software Engineer
Boston or New York City or Philadelphia or Rhode Island
$170k-$200k/yr RemoteFull Time
Daymark Health
Daymark Health: Provides personalized care navigation and virtual support for cancer patients.
4+ YOE4+ years in designing/building user-centric products; AI-native developer; healthcare tech familiarity; secure HIPAA-compliant systems; SOC II; strong communication and customer focus.
Claude, Cursor, GitHub Copilot
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$170k-$230k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
7+ YOEActive TS/SCI with poly clearance required; 9 years with bachelor's or 7 years with master's; US citizenship; AWS, microservices, API development, Lambda, RDS, Grafana, Prometheus, MongoDB, DocumentDB.
Java, Spring Boot, Python, AWS, MongoDB, RDS, Grafana, Prometheus, DocumentDB, COTS/GOTS
2mo
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Senior Staff Engineer - Financial Substantiation Platform *Hybrid*
Bethesda or Dallas or Washington or Falls Church or Baltimore or Seattle
$120k-$260k/yr HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
10+ YOESenior software engineer with 10+ years, architecture leadership, distributed systems, cloud, and data-focused reconciliation platforms. Strong collaboration with Finance, Compliance, and Product.
Java, C#, Go, REST, gRPC, SQL, AWS, Azure, GCP, CI/CD, Containers, IaC, DevOps, Kubernetes, Kafka, Snowflake, Airflow, Python, PySpark, Snowpark
1w
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Senior Engineer
Philadelphia, Pennsylvania, United States
$100k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOE10+ years software development, 5+ years solution architecture; expertise with Java/Spring Boot/Angular, cloud-native platforms, CI/CD, containers, and AI-assisted development.
Java 17+, Java, Spring Boot, Spring Cloud, Angular, JavaScript, TypeScript, PCF/Tanzu Application Service (TAS), Docker, Kubernetes, GitHub Actions, Jenkins, Azure DevOps, GitHub Enterprise, GitHub Copilot, OpenAI, Azure OpenAI, Gemini, Claude, Pinecone, Chroma, Weaviate, LangChain, Semantic Kernel, Kafka, RabbitMQ
2mo
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Senior Cloud Engineer
Broomall, Pennsylvania, United States
$150k-$180k/yr RemoteFull Time
Xactus
Xactus: Provides verification and credit reporting for mortgage lenders.
4+ YOESenior Cloud Engineer skilled in IaC, Kubernetes, GitOps, CI/CD, multi-cloud, platform security, and AI/Bedrock integration.
Terraform, Terragrunt, CloudFormation, Kubernetes, ArgoCD, Flux, GitHub Actions, Jenkins, Prometheus, Grafana, Datadog, OpenTelemetry, Vault, SOC2, PCI-DSS, Bedrock, GitOps, Terraform, Terragrunt, Helm, Kustomize
2mo
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Senior DevOps Engineer
Newton or Charlotte or Boston or Philadelphia or Atlanta or Dallas
$120k-$165k/yr OnsiteFull Time
Ascensus
Ascensus: Administers tax-advantaged retirement and education savings plans.
10+ YOESenior DevOps Engineer with 10+ years designing, building, and operating enterprise CI/CD platforms across hybrid AWS and on‑prem environments.
AWS, Terraform, GitHub Enterprise, GitHub Actions, Docker, Kubernetes, Helm, Oracle, Microsoft SQL Server, Prometheus, Grafana, Splunk, New Relic, OpenTelemetry, ELK, HashiCorp Vault, AWS Secrets Manager
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Senior Java Developer - Vice President
New Castle, Delaware, United States
HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
6+ YOEProficiency in Java, API, Cloud engineering; RESTful APIs with Spring; Oracle/SQL/NoSQL; OpenShift/Kubernetes; CI/CD; SDLC/Agile; DevOps; able to work in fast-paced environment.
Java, API, Spring, Oracle, SQL, MongoDB, OpenShift, Kubernetes, MQ, Kafka, CI/CD, SDLC, Agile
3mo
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Senior Java Developer
Camden or Conshohocken
$145k-$165k/yr HybridFull Time
United States Cold Storage
United States Cold Storage: Provides refrigerated warehousing and logistics services for the cold chain.
8+ YOE8+ years software development; expert Java/Spring; 12-factor, SOLID, clean code; event-driven patterns; production observability; API design; containerization; CI/CD; data modeling; distributed systems patterns.
Java, Spring, Hibernate, Kafka, RabbitMQ, Docker, Kubernetes, Terraform, Ansible, GitHub Actions, Jenkins, Dynatrace, Azure Monitor, OpenAPI
3mo
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Senior Software Engineer, Backend
Philadelphia, Pennsylvania, United States
$160k-$210k/yr OnsiteFull Time
Perpay
Perpay: Financial platform offering interest-free shopping and credit building via payroll.
5+ YOE5+ years web apps; 2+ years leading teams; PostgreSQL; AWS; Docker/Kubernetes; Python/Django or Rails; strong communication.
JavaScript, Python, Django, Flask, React, React Native, Redux, Kubernetes, AWS, Docker, Celery, Redis, Datadog, CloudWatch
3mo
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Senior Systems Engineer
Annapolis Junction or Jessup
OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
8+ YOEBachelor's degree in engineering/science; 8-12 years in systems engineering; experience in requirements development, design, integration; TS/SCI with Polygraph.
DoDAF, SOA, Agile, Hybrid development
2mo
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Senior Software Engineer - Python - 1099
Conshohocken, Pennsylvania, United States
RemoteTemporary
Syzygy Integration
Syzygy Integration: Develops situational awareness and tactical communication technology for defense.
10+ YOE10+ years full stack experience; Python; remote US-based role; must pass background check; U.S. citizen.
Python
2mo
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Senior Database Engineer - Platform Engineering
Philadelphia, Pennsylvania, United States
RemoteFull Time
IntegriChain
IntegriChain: Provides data and applications for pharmaceutical therapy commercialization.
7+ YOE7+ years in database/platform engineering; multi-engine experience; cloud data platforms; IaC and CI/CD emphasis.
AWS, RDS, Aurora, DynamoDB, Redshift, Snowflake, Azure SQL, PostgreSQL, Kinesis, MSK, Glue, Lake Formation, dbt, Airflow, Terraform, AWS CDK, GitHub Actions, CodePipeline, Python, SQL, boto3, OpenSearch, DocumentDB, ElastiCache, SageMaker, Bedrock, pgvector, LLM
3mo
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Senior Software Developer
Conshohocken or Portland or Bucharest or Ia\u00021si or Barcelona or Tokyo or United States
OnsiteFull Time
Suvoda
Suvoda: Software for clinical trial randomization and patient data collection.
6+ YOE6+ years software development experience, deep Python, relational databases and AWS experience, EMR not stated, Django and Angular preferred, bachelor's or equivalent experience, production-support mindset.
Python, Django, Angular, AWS, Claude Code
2w
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Senior ServiceNow Developer
Baltimore or Woodlawn
$90k-$176k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
8+ YOE5+ MgmtExperienced ServiceNow developer with 8+ years, technical leadership, solution architecture, AWS experience, Public Trust eligibility, REST/SOAP and web dev skills, and multi-module ServiceNow expertise.
ServiceNow, AWS Cloud Management Platform, X-HTML, CSS3, SQL, XML, Angular, JavaScript, PHP, .NET, Java, REST, SOAP, SAML, Active Directory, LDAP
2mo
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Senior Electrical Engineer - Buildings
Butler or Stamford or Philadelphia or Burlington or New York or Albany or Pittsburgh or Rochester or Hauppauge or Cleveland or Vestal or Washington
$135k-$203k/yr OnsiteFull Time
Stantec
StantecTSX: STN: Provides professional engineering, architecture, and environmental consulting services.
15+ YOESenior electrical engineer with 15 years+ exp, PE license required; Bachelor's in Electrical/Architectural Engineering with lighting emphasis; LEED preferred; proficient in Revit/AutoCAD; strong leadership and client skills.
Revit, AutoCAD, Microsoft Office, AGI 32, SKM, Newforma
1mo
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Senior System Engineer - Maryland
Maryland, Maryland, United States
$120k-$140k/yr RemoteFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
3+ YOESenior system engineer with RF, IP networking, and telecom system design; BS in engineering with 3+ years or 5+ years experience; US work authorization; travel 25-50%; remote work.
VMware ESXI, Linux, Microsoft Windows
2w
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Senior JAVA Developer
Philadelphia, Pennsylvania, United States
$121k-$189k/yr OnsiteFull Time
Noblis
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
8+ YOEBachelor's degree in a relevant technical field,8+ years Java development,experience with large Java codebases,Java 17+,Git/GitLab,Jira,CI/CD,SonarQube,Linux,US citizenship,and ability to obtain Secret clearance.
Java, Java 17, Gradle, bash, python, Git, GitLab, Jira, GitLab CI/CD, SonarQube, Docker, RHEL 8, RHEL 9, JGroups, Linux

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