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Senior Back End Developer Jobs in Pennsylvania (NOW HIRING)

Branding Brand

Senior Backend Engineer

Pittsburgh, PA · Remote

$25 - $70/hr

Senior Backend Engineer Branding Brand is hiring a Senior Backend Engineer for a 12-week contract engagement (June 2026 to August 2026) to design and ship a new backend service to production for one ...

Branding Brand

Senior Backend Engineer

Pittsburgh, PA · On-site

$25/hr

Senior Backend Engineer Branding Brand is hiring a Senior Backend Engineer for a 12-week contract engagement (June 2026 to August 2026) to design and ship a new backend service to production for one ...

Paychex

Sr Back End Marketing Web Developer

Allentown, PA · Remote

$108K - $171K/yr

Assigns and coordinates tasks of other back end developers. Monitors progress against task estimates to provide status. Responsible for the communication of department project activities and status.

YO AI Labs

Backend Developer - Remote

Philadelphia, PA · Remote

$80 - $120/hr

Senior Software Engineer Job Type: Contractor (~15 hours/week) Location: Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training project by creating ...

CGI Inc.

Senior Java API Developer - Backend

Pittsburgh, PA · On-site

$117K - $151K/yr

Senior Java API Developer - Backend Category: Software Development/ Engineering Main location: United States, Pennsylvania, Pittsburgh Position ID:J0826-0618 Employment Type: Full Time Position ...

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Senior Back End Developer information

See Pennsylvania salary details

$64.2K

$140.2K

$191K

How much do senior back end developer jobs pay per year?

As of Sep 7, 2026, the average yearly pay for senior back end developer in Pennsylvania is $140,175.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,800.00 and $156,900.00 per year, depending on experience, location, and employer.

What is a senior back end developer?

Senior Back End Developers are experienced software engineers who specialize in building and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They collaborate with front end developers and other team members to ensure seamless integration and optimal performance of applications. Their responsibilities often include designing system architecture, optimizing code for scalability, implementing security best practices, and mentoring junior developers. Senior Back End Developers typically have several years of experience and a deep understanding of programming languages such as Java, Python, Ruby, or Node.js.

What are the key skills and qualifications needed to thrive as a senior back end developer?

To thrive as a Senior Back End Developer, you need advanced programming skills (such as in Python, Java, or Node.js), a deep understanding of server-side architecture, and experience with databases, often backed by a degree in computer science or related fields. Familiarity with frameworks (like Django or Spring), RESTful APIs, cloud platforms (AWS, Azure, or GCP), and version control systems (such as Git) is typically required, along with relevant certifications. Strong problem-solving, collaboration, and communication skills help you deliver robust solutions and mentor junior developers. These skills ensure scalable, secure, and maintainable back-end systems that are vital for reliable business operations.

What are some common challenges senior back end developers face when working on large-scale systems?

Senior Back End Developers often encounter challenges such as ensuring system scalability, maintaining high performance under increased load, and designing robust APIs that can evolve over time. They must also address complex data consistency issues and integrate with multiple third-party services or legacy systems. Collaborating closely with front end, DevOps, and QA teams is crucial to align on architecture decisions and streamline deployment processes, making strong communication and problem-solving skills essential.

What is the difference between Senior Back End Developer vs Backend Engineer?

AspectSenior Back End DeveloperBackend Engineer
Required CredentialsBachelor's in CS or related field, experience in backend developmentBachelor's in CS or related field, experience in backend systems
Work EnvironmentCollaborates with front-end developers, product managers, and QA teamsWorks on server-side logic, database integration, and API development
Industry UsageCommon in tech companies, startups, and enterprise software firmsUsed across similar industries, often interchangeably with Senior Back End Developer

Both roles require similar technical skills and educational backgrounds, focusing on server-side development. The main difference lies in the seniority level and scope of responsibilities, with Senior Back End Developers typically taking on more leadership and complex project tasks compared to Backend Engineers.

What are the most commonly searched types of Back End Developer jobs in Pennsylvania?

The most popular types of Back End Developer jobs in Pennsylvania are:

What are popular job titles related to Senior Back End Developer jobs in Pennsylvania?

For Senior Back End Developer jobs in Pennsylvania, the most frequently searched job titles are:

What job categories do people searching Senior Back End Developer jobs in Pennsylvania look for?

The top searched job categories for Senior Back End Developer jobs in Pennsylvania are:

What cities in Pennsylvania are hiring for Senior Back End Developer jobs?

Cities in Pennsylvania with the most Senior Back End Developer job openings:

Senior Back End Developer jobs near you
Infographic showing various Senior Back End Developer job openings in Pennsylvania as of August 2026, with employment types broken down into 86% Full Time, and 14% Contract. Highlights an 71% In-person, 2% Hybrid, and 27% Remote job distribution, with an average salary of $140,175 per year, or $67.4 per hour.

Senior Backend Engineer

Branding Brand

Pittsburgh, PA • Remote

$25 - $70/hr

Contractor

Re-posted 24 days ago

Job description

Senior Backend Engineer


Branding Brand is hiring a Senior Backend Engineer for a 12-week contract engagement (June 2026 to August 2026) to design and ship a new backend service to production for one of our clients. You will own delivery end-to-end of a reactive Java service built on Spring WebFlux, deployed on Kubernetes, with Redis for caching and Databricks as the long-term data store. The workload is bursty and high throughput, so the role requires solid instincts for idempotency, at-least-once delivery, and scaling under burst load.

This is a fully remote contract position. The candidate must be located in the United States and able to work as an independent contractor. No C2C.


Key Responsibilities:

Design and build:

  • Own the design and end-to-end implementation of a new backend service in Java 21 and Spring WebFlux
  • Build reactive, nonblocking HTTP endpoints that are racesafe and idempotent under retry
  • Make architecture decisions on caching, write paths, error handling, and scaling, and document the tradeoffs

Scale and operate:

  • Design the Redis caching layer for hot reads, idempotency de-dupe, and readthrough patterns
  • Design the async write path from the service to Databricks (queue or stream, batch writer, retry semantics)
  • Configure Kubernetes deployments, horizontal pod autoscaling, and graceful shutdown for safe deploys
  • Author K6 load tests for both steadystate and bursty traffic patterns
  • Wire up structured logging, metrics, and alerting for production critical paths

Support & maintain:

  • Troubleshoot issues across the API, caching, and datawrite layers in development and production
  • Participate in design reviews, code reviews, and Agile ceremonies
  • Provide production support through the contract period, including issue triage and resolution

Tech Stack:

  • Language and framework: Java 21, Spring WebFlux, Project Reactor
  • API Gateway: Apigee
  • Caching: Redis
  • Data store: Databricks (longterm, analytical), accessed via async batched writes
  • Messaging and async: SQS, Kafka, or Kinesis
  • Container platform: Kubernetes
  • Performance testing: K6
  • Cloud: AWS or Azure

Required Skills and Qualifications:

  • 6+ years of backend development experience
  • Hands-on experience with reactive programming and Project Reactor (Mono, Flux, non-blocking IO)
  • Production experience with Java and Spring WebFlux building RESTful or reactive microservices
  • Experience designing for idempotency, retries, and at least once delivery semantics
  • Comfort designing and operating services under bursty, high throughput workloads
  • Experience operating production services in a major public cloud such as Azure or AWS
  • Familiarity with data warehouse or lakehouse platforms (Databricks, Snowflake, BigQuery) as integration targets from an application service
  • Experience load testing services with K6, Gatling, Locust, JMeter, or equivalent
  • Commitment to secure coding practices and ongoing security awareness
  • Strong problem solving and communication skills


Qualifications:

Education:

Bachelor's degree in computer science, Information Systems, Business, or related

field


Preferred Attributes:


6+ years experience


About Us:

Branding Brand launched in 2008 as an interactive marketing firm and quickly evolved into the largest and fastest growing provider of mobile commerce apps and sites for retailers.


Branding Brand is a supporter of the Whitehouse Equal Pay Pledge, and a Top Workplaces award winner.


Branding Brand is also an equal opportunity employer. We seek applicants of diverse backgrounds and hire without regard to race, color, gender, religion, national origin, ancestry, citizenship, individuals with disabilities, age, sexual orientation, protected veterans, or any other characteristic protected by law.


The hourly rate for this position is $25/hr-$70/hr.

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