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Senior Python Flask Developer Jobs in Pennsylvania

MJDP Resources

Java Architect

Philadelphia, PA

$63.50 - $85.75/hr

Work across Python 3.12/3.13, Django 5.x and Flask 3.x services, including API design, background ... Run strong PR reviews, enforce engineering standards, and mentor offshore engineers through pairing ...

TrafficCast

Senior Software Developer

Philadelphia, PA · On-site

$90K - $125K/yr

Position Senior Software Engineer TCI is seeking a high-energy, experienced server side software developer with solid experience in C, Java, Python, and like languages to help drive design ...

ScrumLink, Inc.

Sr. AI Architect

Oaks, PA

$180/day

Build and mentor high-performing AI, data science, and ML engineering teams * Partner with Product ... Proficiency with Python, SQL, and modern data/ML platforms (cloud-based preferred) * Strong ...

TekShapers

Sr. AI Architect

Oaks, PA · Hybrid

Build and mentor high-performing AI, data science, and ML engineering teams * Partner with Product ... Proficiency with Python, SQL, and modern data/ML platforms (cloud-based preferred) * Strong ...

VDart

AI/ML Lead Engineer

Chester, PA · On-site

$98K - $130K/yr

ML Engineer with python and AI Location: Chester , PA -onsite Duration: Contract JD: Role Overview ... Flask or FastAPI to integrate AI models into applications. • Collaborate with business ...

ACA Group

Python/AI Product Engineer

Pittsburgh, PA · Hybrid

Position Overview We are seeking a highly experienced Senior / Lead AI Developer to join our ... OR Pittsburgh The ideal candidate has deep expertise in Python development, distributed cloud ...

Prophecy Technologies

Data Engineer (AWS-Python)

Malvern, PA · On-site

$112K - $134K/yr

We are seeking a Senior Data Engineer with strong hands-on experience in building AWS-based data pipelines. The ideal candidate will have deep expertise in Python, AWS Glue, PySpark, and cloud-native ...

Qeexo, Co.

Software Engineers

Pittsburgh, PA · On-site

$140K/yr

The Software Engineer supports the development, deployment, and scaling of Python-based backend ... Contribute to the refactoring of Python-based backend services using Flask, SQLAlchemy, and Celery ...

Qeexo, Co.

Software Engineers

Pittsburgh, PA

$140K/yr

The Software Engineer supports the development, deployment, and scaling of Python-based backend ... Contribute to the refactoring of Python-based backend services using Flask, SQLAlchemy, and Celery ...

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Senior Python Flask Developer information

How much does a senior Python developer make?

A senior Python Flask developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and company size. They often possess strong skills in web frameworks, APIs, and database integration, which can influence salary levels.

What are Senior Python Flask Developers?

Senior Python Flask Developers are experienced software engineers who specialize in building web applications using the Python programming language and the Flask web framework. They are responsible for designing, developing, and maintaining scalable backend systems, APIs, and web services. In addition to strong coding skills, they often lead projects, mentor junior developers, and ensure best practices in code quality, security, and performance. Their expertise allows them to solve complex technical challenges and contribute to the overall architecture and success of software projects.

What is the salary of Python flask?

The salary for a Senior Python Flask Developer typically ranges from $90,000 to $130,000 annually, depending on experience, location, and company size. Skilled developers with knowledge of REST APIs, database integration, and cloud deployment tend to earn higher salaries.

What are some common challenges faced by Senior Python Flask Developers when working on large-scale applications?

Senior Python Flask Developers often encounter challenges such as managing complex codebases, ensuring scalability, and maintaining performance as applications grow. Integrating Flask with other technologies (like databases, caching systems, or third-party APIs) can introduce architectural complexities. Additionally, balancing rapid development with writing maintainable, well-tested code is crucial. Collaboration with frontend developers, DevOps, and QA teams is frequent, requiring strong communication and problem-solving skills.

What is the difference between Senior Python Flask Developer vs Python Developer?

AspectSenior Python Flask DeveloperPython Developer
Required CredentialsBachelor's in CS or related, experience with Flask, REST APIsBachelor's in CS or related, basic Python knowledge
Work EnvironmentWeb development teams, startups, tech companiesSoftware development teams, startups, tech companies
Employer & Industry UsageTech firms, SaaS companies, startupsVariety of industries including finance, healthcare, tech
Search & Comparison IntentAdvanced roles, leadership, project scopeEntry to mid-level development, learning

The main difference between a Senior Python Flask Developer and a Python Developer lies in experience and responsibilities. Senior developers typically have more expertise in Flask, lead projects, and mentor junior staff, whereas Python Developers may focus on coding and basic application development. Both roles are essential in web development teams, but senior roles require deeper knowledge and leadership skills.

What are the key skills and qualifications needed to thrive as a Senior Python Flask Developer, and why are they important?

To thrive as a Senior Python Flask Developer, you need advanced proficiency in Python, deep understanding of the Flask framework, and experience designing scalable backend architectures, typically supported by a degree in computer science or related field. Familiarity with RESTful API development, database management systems like PostgreSQL or MySQL, and version control tools such as Git is essential, and certifications in cloud platforms or web development can be beneficial. Strong problem-solving skills, clear communication, and the ability to mentor junior developers are standout soft skills for this role. These abilities ensure efficient delivery of robust, maintainable web applications and foster productive collaboration within development teams.

What is the highest paid Python programmer?

Senior Python Flask developers with extensive experience, specialized skills, and knowledge of frameworks and cloud services tend to earn the highest salaries among Python programmers. Top earners often work in industries like finance, technology, or data science and may hold advanced certifications or leadership roles. Salary levels vary based on location, company size, and individual expertise.

Is Flask a backend or frontend?

Flask is a lightweight Python web framework used for building backend applications and APIs. It handles server-side logic, data processing, and routing, but does not manage frontend user interfaces directly. Developers often combine Flask with frontend technologies like HTML, CSS, and JavaScript to create complete web applications.
What are the most commonly searched types of Python Flask Developer jobs in Pennsylvania? The most popular types of Python Flask Developer jobs in Pennsylvania are:
What are popular job titles related to Senior Python Flask Developer jobs in Pennsylvania? For Senior Python Flask Developer jobs in Pennsylvania, the most frequently searched job titles are:
What job categories do people searching Senior Python Flask Developer jobs in Pennsylvania look for? The top searched job categories for Senior Python Flask Developer jobs in Pennsylvania are:
What cities in Pennsylvania are hiring for Senior Python Flask Developer jobs? Cities in Pennsylvania with the most Senior Python Flask Developer job openings:
Senior Python Flask Developer jobs near you
Infographic showing various Senior Python Flask Developer job openings in Pennsylvania as of June 2026, with employment types broken down into 1% Internship, 5% As Needed, 6% Full Time, 81% Part Time, and 7% Contract. Highlights an 85% Physical, 8% Hybrid, and 7% Remote job distribution.

Java Architect

MJDP Resources

Philadelphia, PA

$63.50 - $85.75/hr

Full-time

Posted 5 days ago

Job description

Job Description

We are looking for a Lead Architect who is a true hands-on engineer—someone who designs solutions and writes production code daily. You will lead architecture and delivery across a cloud-native platform built on Java + Spring, .NET 8/10, Python (Django/Flask microservices), SQL, React, Node.js + Socket.IO, and Microsoft Azure (ADO/App Service/Container Apps/Functions/Service Bus/Key Vault/Blob/Monitor/App Insights/APIM).
This role requires cross-stack ownership and the ability to guide teams while staying hands-on—coding, reviewing PRs, mentoring offshore engineers, driving PoCs to production, and ensuring security + reliability.
- Lead by coding (daily): Deliver features and fixes in Java/Spring, Python services, and .NET with strong unit/integration test coverage.
- Build & evolve Python microservices: Work across Python 3.12/3.13, Django 5.x and Flask 3.x services, including API design, background processing patterns, and Azure integrations.
- Architect cloud-native services: Build scalable microservices and event-driven workflows on Azure (App Service/Container Apps, Functions).
- Implement async messaging patterns: Use Azure Service Bus (queues/topics/subscriptions), retries, DLQs, idempotency, and resiliency best practices.
- Build real-time capabilities: Develop and scale Node.js + Socket.IO/WebSockets services (secure connections, rooms/namespaces, multi-instance scaling patterns).
- Own secure integrations: Implement enterprise-grade security using Azure Key Vault, Managed Identity (MSI), certificates, and Azure AD/Entra ID auth patterns (OAuth2/OIDC/JWT).
- Drive data reliability: Build and optimize SQL Server schemas, queries, and deployment scripts (safe, idempotent, CI/CD friendly).
- Operational excellence: Instrument services with Application Insights/Azure Monitor + OpenTelemetry, build health checks, and support production incidents and root-cause fixes.
- Mentor and set standards: Run strong PR reviews, enforce engineering standards, and mentor offshore engineers through pairing, reviews, and technical guidance.
Qualifications
- 10+ years in software engineering with recent, demonstrable hands-on delivery
- Must be strong across Java/Spring + React + Python (not just oversight—actual coding)
- Proven success leading teams without stepping away from coding
- A quality-first mindset: testing, security, observability, performance, and reliability
Must-Have Skills (Non-Negotiable)
1) Backend (Java)
- Java 21 + Spring Boot 3.x (REST APIs, Spring Security, Spring Data, production microservices)
- API design, middleware, performance mindset; service reliability
- Strong automated testing: JUnit 5 + Mockito (Java) and modern .NET testing patterns
2) Python
- 2+ years hands-on Python building production services (within overall 10+ years experience)
- Framework experience with Django (5.x) and/or Flask (3.x); ability to design and maintain REST APIs
- Testing culture: pytest (and related patterns like coverage and mocking
- Comfort debugging distributed systems and Azure SDK integrations in Python (identity, storage, telemetry)
3) Web / UI
- React (TypeScript/JavaScript, modern patterns, debugging and performance awareness)
4) Real-Time / Integration
- Node.js + Express and Socket.IO/EventsHub/WebSockets (real-time messaging, connection security, scalability)
5) Data
- SQL Server (T SQL, query optimization, transactions, deployment scripts, reliability and performance)
6) Azure (Hands-On)
- Strong hands-on Azure delivery with:
App Service/Container Apps, Azure Functions, Service Bus, Blob Storage, Key Vault, Managed Identity, Application Insights, Azure Monitor/OpenTelemetry, and APIM
Nice-to-Have (Adds Strong Value)
- .NET 8/10 (API design, middleware, performance mindset; service reliability)
- Redis / Azure Redis Cache (including scaling Socket.IO with Redis adapters)
- Cosmos DB (Mongo API) / MongoDB familiarity
- AI/document workflows exposure: Azure AI Search, Azure OpenAI, Form Recognizer/OCR, an