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Senior Backend Developer Jobs in Emmaus, PA (NOW HIRING)

Democrance

Senior Backend Engineer (Poland)

Whitehall, PA · On-site

$130 - $185/hr

We are looking for a Senior Backend Engineer to join our engineering team and take meaningful ... Experience with DevOps practices: Docker, CI/CD pipelines (GitHub Actions or equivalent), and ...

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.

WorkMotion

Senior Software Engineer (Backend)

Whitehall, PA · On-site

$120 - $160/hr

... and DevOps best practices. * Contribute to architecture, system design, and technical decision ... backend focus and frontend exposure. * Strong hands‑on experience with Java, Spring Boot, React ...

New

Saransh Inc

Senior Python Web Developer - Only W2

Warren, NJ · On-site

$126K - $169K/yr

Senior Python Web Developer Location: Warren, NJ (Onsite - 3 days a week to biweekly, subject for ... Develop and maintain web applications and backend services using Python-based frameworks. * Build ...

Vantage

Sr. Software Developer - PHP

New Hope, PA

Senior PHP Developer Company: Vantage Labs Vantage Labs is a world leader and innovator in the ... Experience with back-end language and knowledge of multiple front-end languages and libraries (e.g.

Cygnus Professionals, Inc.

Java Developer

Warren, NJ · On-site

$53 - $68.50/hr

Experience with MQ Series and JMS 7+ years' experience as Senior System Analyst/Developer with J2EE ... back end and API/Service development experience is required - Mobile web experience is a plus ...

Hudson Manpower

Sr Full stack Java Developer

Allentown, PA · On-site

$60 - $65/hr

Built AI-enabled backend services using Java, Spring Boot, Spring AI, LangChain/LangGraph concepts ... Implemented prompt engineering, prompt templates, response validation, context management, and AI ...

Oishii

Senior Software Engineer, Robotics

Phillipsburg, NJ · On-site

$140K - $160K/yr

As part of our Engineering Team, our Senior Software Engineer, Robotics drives some of the most ... backend software engineering experience, including 3+ years developing robotics or automation ...

Oishii

Senior Software Engineer, Robotics

Phillipsburg, NJ · On-site +1

$140K - $160K/yr

As part of our Engineering Team, our Senior Software Engineer, Robotics drives some of the most ... backend software engineering experience, including 3+ years developing robotics or automation ...

OISHII

Senior Software Engineer, Robotics

Phillipsburg, NJ · On-site

$140 - $160/hr

As part of our Engineering Team, our Senior Software Engineer, Robotics drives some of the most ... Bachelor's or Master's degree in Computer Science or a related technical field.6+ years of backend ...

Democrance

Senior Fullstack Engineer

Whitehall, PA · On-site

$130 - $180/hr

You'll be building scalable backend services and intuitive frontend interfaces that power financial ... Software Developer, Software Engineer or similar role * 5+ years of MERN stack experience * 2+ ...

Guardianlife

Lead Software Engineer

Bethlehem, PA · Hybrid

$99K - $162K/yr

... or senior engineering role. * 3-5 years of experience successfully developing APIs using C#, .NET ... NET & C# expertise on backend services with async programming and memory management. * Strong ...

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All JobsBackend Developer JobsSenior Backend Developer JobsSenior Backend Developer Jobs in Emmaus, PA

Senior Backend Developer information

See Emmaus, PA salary details

$61.5K

$134.4K

$183.1K

How much do senior backend developer jobs pay per year?

As of Aug 29, 2026, the average yearly pay for senior backend developer in Emmaus, PA is $134,384.00, according to ZipRecruiter salary data. Most workers in this role earn between $115,800.00 and $150,400.00 per year, depending on experience, location, and employer.

What does a senior backend developer do?

A Senior Backend Developer is responsible for designing, building, and maintaining the server-side logic of web applications. They work with databases, APIs, and server infrastructure to ensure that applications run smoothly, securely, and efficiently. In addition to writing robust code, they often mentor junior developers, contribute to architectural decisions, and collaborate with frontend teams to deliver seamless user experiences. Their expertise is crucial for scaling applications and implementing best practices in software development.

What are the key skills and qualifications needed to thrive as a senior backend developer, and why are they important?

To thrive as a Senior Backend Developer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), deep understanding of API design, and experience with database management, often supported by a degree in computer science or related field. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications in backend technologies are commonly required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and mentor junior developers. These competencies ensure robust, scalable backend systems and drive successful project delivery in complex technical environments.

What are common challenges senior backend developers face when leading complex projects, and how can they address them?

Senior Backend Developers often encounter challenges such as integrating legacy systems with new technologies, ensuring scalability under increased load, and coordinating cross-functional teams for seamless feature delivery. Addressing these challenges typically involves proactive architectural planning, clear communication with frontend and DevOps teams, and adopting best practices like code reviews and automated testing. Staying updated on emerging technologies and fostering a culture of knowledge sharing within the team also help in overcoming technical obstacles and driving successful project outcomes.

What is the difference between Senior Backend Developer vs Backend Developer?

AspectSenior Backend DeveloperBackend Developer
Required Experience5+ years, leadership skills1-3 years, foundational skills
ResponsibilitiesDesign architecture, mentor juniors, optimize systemsImplement features, fix bugs, write code
Skills & CertificationsAdvanced coding, system design, relevant certificationsBasic coding, database knowledge
Work EnvironmentCollaborates with cross-functional teams, often in larger projectsFocuses on individual tasks within projects

The main difference between a Senior Backend Developer and a Backend Developer lies in experience, responsibilities, and leadership. Senior Backend Developers typically have more years of experience, take on complex system design, and mentor junior staff, whereas Backend Developers focus on implementing features and fixing bugs. Both roles are essential in backend development teams, but the senior role involves more strategic and leadership duties.

What cities near Emmaus, PA are hiring for Senior Backend Developer jobs?

Cities near Emmaus, PA with the most Senior Backend Developer job openings:

Senior Backend Developer jobs near you

Senior Backend Engineer (Poland)

Democrance

Whitehall, PA • On-site

$130 - $185/hr

Other

Posted 11 days ago

Job description

We are looking for a Senior Backend Engineer to join our engineering team and take meaningful ownership of our backend systems. You will be a core contributor to our platform, working across Ruby, Python, and Node.js with a Rails backbone — shipping well-architected, scalable services that run reliably on GCP.

This is a role for someone who is self-directed and dependable — you hold yourself to a high standard, you own your work end-to-end, and you don't need hand-holding to figure out what needs to be done. If you thrive in a lean, high-trust environment where autonomy is the norm rather than the exception, this is the right place for you.


You will work with stunning, supportive product and engineering teams on problems that matter — contributing to infrastructure, products, and features with the potential for meaningful, wide-reaching impact.

What you will do
  • Write well-documented, thoroughly tested, scalable, and extensible code across our Ruby, Python, and Node.js services.
  • Architect and evolve the application backend — designing APIs, data models, and service boundaries with long-term maintainability in mind.
  • Build and operate microservices deployed on GCP, leveraging GKE and Cloud Run for containerised workloads.
  • Own and improve our infrastructure end-to-end — provisioning, CI/CD pipelines, deployment automation, secrets management, and cost optimisation.
  • Lead infrastructure reliability work: Kubernetes and database upgrades, alerting and monitoring setup (Grafana/Prometheus), and a structured audit of our existing GCP setup to reduce risk and technical debt.
  • Take full ownership of your systems in production — monitoring, debugging, and resolving issues quickly when they arise.
  • Integrate with third-party APIs and payment processors; contribute to a platform handling real financial transactions.
  • Work with Redis for caching and queueing, and Elasticsearch for search and analytics use cases.
  • Collaborate closely with front-end engineers building React-based UIs, providing clean, well-specified APIs.
  • Uphold quality at every stage — code reviews, automated testing, and raising the bar for engineering standards across the team.
  • Support the growth of engineers around you — through thoughtful code reviews, design feedback, and sharing context generously.
  • Take initiative in identifying technical debt and proactively proposing improvements to architecture or process.
What we’re looking for
  • 5+ years of professional backend engineering experience, with a strong track record of shipping production systems.
  • Proficiency in Ruby (Rails) as a primary stack; comfortable working in Python and Node.js as well.
  • Proven, hands‑on experience deploying and operating services on GCP — GKE, Cloud Run, and related managed services.
  • Comfortable managing Kubernetes clusters in production — not just deploying to GKE, but handling upgrades, node pool management, and cluster health.
  • Hands‑on with secrets management tooling (GCP Secret Manager, Vault, or equivalent) and network‑level infra work (VPNs, TLS certificates, environment isolation).Solid understanding of Redis (caching, pub/sub, job queues) and Elasticsearch.
  • Strong command of REST API design, relational databases (PostgreSQL / MySQL), and microservices patterns.
  • Experience with DevOps practices: Docker, CI/CD pipelines (GitHub Actions or equivalent), and infrastructure‑as‑code (Terraform).
  • Independent and reliable — you take ownership of your work, communicate proactively, and can drive tasks to completion without close supervision.
  • Security‑conscious — comfortable with secrets management, secure API design, and the implications of handling financial data.
  • Strong competencies in data structures, algorithms, and software design.
  • Familiar with Agile / Scrum workflows and comfortable in small, fast‑moving teams.
  • Bonus: experience with React, serverless architectures, payment processor integrations (Stripe, Checkout), and familiarity with BigQuery and data pipeline patterns.
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