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Frontend Engineer Jobs

234 jobs found

Today

Software Engineer III with TS/SCI Polygraph

Deloitte Baltimore, MD

Baltimore, MD

Today

$119k - $198k/yr Full time Backend Developer Python Senior

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Job Description

Deloitte is seeking a Software Engineer III to join the Process Engineering and Automation team in Baltimore, where secure, scalable software powers AI-enabled websites, internal tools, dashboards, and APIs within a compliance-driven environment. This onsite role offers a salary range of USD 119,000 to 198,400 per year and the opportunity to contribute across the full software development lifecycle.

Responsibilities

Design, develop, and sustain end-to-end web solutions, including user interfaces, data stores, and server-side services, aligned with program requirements and security standards.
Own features across the software development life cycle, from requirements analysis and solution design to development, testing, deployment support, and ongoing maintenance.
Build and enhance applications using Python, HTML, CSS, .NET, and PowerShell while embedding security controls and secure coding practices throughout the workflow.
Incorporate artificial intelligence capabilities into applications, including large language model features, agentic workflows, intelligent search, and AI-assisted user experiences.
Develop and maintain unit, integration, and end-to-end tests; participate in code reviews; and document APIs, data models, and architectural decisions.

Requirements

Bachelor's degree required.
At least four years of experience in application development with a focus on test-driven development.
Four or more years of Python experience and full-stack web development expertise, including React, HTML, CSS, .NET, and APIs.
Four-plus years working across the software development life cycle, from requirements through deployment and maintenance.
Active TS/SCI clearance with polygraph.
Ability to travel approximately 10 to 25 percent depending on client assignments.
Must be legally authorized to work in the United States without employer sponsorship now or in the future.

Technologies

Python
HTML
CSS
.NET
PowerShell
React
PostgreSQL

Benefits

Discretionary annual incentive program

Qualifications

Bachelor's degree required.
Four or more years of experience in application development, including test-driven development.
Four or more years of experience with Python and full-stack web technologies, including React, HTML, CSS, .NET, and APIs.
Four-plus years across the software development life cycle, including requirements analysis, design, development, testing, deployment, and maintenance.
Active TS/SCI clearance with polygraph.
Ability to travel about 10-25 percent based on client work.
Legal authorization to work in the United States without sponsorship now or in the future.
Experience with PostgreSQL schema design and relational database development.
Experience building applications with React and .NET.
Experience implementing security controls aligned to the Open Worldwide Application Security Project Top 10 guidance.
Experience integrating large language model capabilities, agentic workflows, or intelligent search into applications.
Experience writing unit, integration, and end-to-end tests within a CI/CD environment.
Experience supporting Authority to Operate documentation or security review processes in classified environments.

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1d ago

Senior Software Engineer-Tech Ex AI Assets Foundry Team

West Monroe Chicago, IL

Chicago, IL

1d ago

$126k - $162k/yr Full time Backend Developer Senior APIs

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Job Description

Responsibilities

Design, develop, test, deploy, and support full-stack software applications and reusable asset components for the Tech Ex AI Assets portfolio.
Build and integrate Generative AI capabilities into software products, including APIs, prompt workflows, retrieval-augmented generation, model integration, and evaluation patterns where applicable.
Translate product requirements, user stories, and acceptance criteria into maintainable, reliable, and secure code in collaboration with product owners and product design.
Participate in Agile ceremonies and contribute to iterative delivery, estimation, backlog refinement, sprint planning, demos, and retrospectives.
Partner with architects and senior technical leaders to implement established architecture patterns and make practical engineering recommendations without owning enterprise architecture direction.
Contribute to engineering quality through code reviews, unit and integration testing, CI/CD practices, documentation, observability, and production support practices.
Apply responsible AI, data privacy, security, and compliance considerations when building AI-enabled features and internal software assets.
Mentor junior developers, share engineering best practices, and help raise the overall quality and consistency of the asset development team.
Troubleshoot defects, performance issues, and integration challenges across front-end, back-end, data, cloud, and AI service layers.

Requirements

Bachelor's degree in a relevant field preferred, or equivalent experience required.
5+ years of experience in full-stack software development with demonstrated ability to deliver production-quality software.
Strong working knowledge of object-oriented concepts, software design principles, algorithms, data structures, and design patterns.
Hands-on experience with modern application development using cloud services, APIs, databases, and CI/CD delivery practices.
Practical experience building or integrating AI, machine learning, Generative AI, or data-driven capabilities into software products; direct experience with Azure OpenAI, Databricks, LLM APIs, RAG, embeddings, or model evaluation is strongly preferred.
Comfortable working within a fast-paced, collaborative Agile/Scrum product environment with product owners, designers, architects, engineers, governance, and product success partners.
Able to follow architecture direction, contribute engineering design input, and make sound technical tradeoffs while remaining focused on hands-on asset development rather than architecture ownership.
Strong problem-solving, debugging, communication, and documentation skills.
Excellent communication skills with internal product, business, and engineering stakeholders.
Smart, versatile, and passionate about delivering high-quality code and learning new technologies and languages.
Experience coaching and mentoring junior developers.

Technologies

Node.js, Python, .NET, React, TypeScript, JavaScript, HTML5, CSS3
PostgreSQL, MongoDB, SQL Server
Microsoft Azure, Amazon Web Services (AWS)
Azure OpenAI, Databricks Machine Learning, LLM APIs, REST APIs
MVC, MVVM, service-oriented architecture, event-driven patterns, microservice concepts
Git, Azure DevOps, pull requests, branching strategies
CI/CD pipelines, Terraform, Docker, infrastructure as code, environment configuration, deployment automation
npm, NuGet, Jest

Compensation

Salary: USD 125,500 - 161,700 per year.

Benefits

Medical, dental, vision, and basic life insurance
401k plan enrollment
Eligible to purchase shares from the employee stock ownership program (ESOP)
Annual bonuses
Unlimited flexible time off
Ten paid holidays
Ten weeks of paid parental leave

About West Monroe

West Monroe is a global business and technology consulting firm focused on delivering measurable value for clients through real world solutions. We blend business and technology and rely on data to adapt and solve challenges, delivering outcomes that matter over time. Collaboration is embedded in our daily practice, with a hands-on approach to co-creating solutions and turning vision into clear actions that drive lasting impact.

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1d ago

Sr. Principal Software Engineer (SW Modeler/Developer)

Northrop Grumman Redondo Beach, CA

Redondo Beach, CA

1d ago

$142k - $213k/yr Full time Backend Developer Senior APIs

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Job Description

Salary: USD 142,200 - 213,400 per year

Responsibilities

Work with mission‑planning workflows to integrate operational constraints and real‑world mission requirements.
Apply advanced debugging, troubleshooting, and integration skills within large‑scale distributed systems.
Provide proven leadership in task management and mentor team members across dynamic program schedules with tight deadlines.
Design modular, reusable software architectures that reduce overall code footprint while enhancing maintainability and scalability.
Conduct software design and modeling analysis.

Requirements

Bachelor's degree in a STEM discipline with 8+ years of relevant software engineering experience or Master's degree in STEM with 6+ years of stated experience or Ph.D. in STEM with 4+ years of stated experience.
Expertise in designing, developing, and refactoring mission‑critical ground software, including backend systems (Python) and operator‑facing front‑end tools (React JS or similar).
Active U.S. Government Secret clearance required at the time of application.
Experience with CI/CD pipelines for automated builds, testing, and deployment.
Proficiency with software‑design and/or software‑modeling tools.

Technologies

Python
React JS
C
C++
Cameo
AWS Lambda
DynamoDB
API Gateway
Angular
SQS
EFS
S3
MongoDB
Kafka
Docker
FastAPI

Benefits

Medical, Dental & Vision coverage
401k
Educational Assistance
Life Insurance
Employee Assistance Programs & Work/Life Solutions
Paid Time Off
Health & Wellness Resources
Employee Discounts
Flexible Schedules, including options like a 9/80 work schedule

Relocation Assistance

Relocation assistance may be available

Clearance Required for Start

Yes

Clearance Type

Secret

Travel

Yes, 10% of the Time

Description

Northrop Grumman’s Space Sector is seeking a Sr. Principal Software Engineer (SW Modeler/Developer) to join our team of highly qualified, diverse professionals within the Western Region Software Engineering directorate. This position is located onsite in Redondo Beach, CA.

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1d ago

Cybersecurity Product Engineer

Leidos Huntsville, AL

Huntsville, AL

1d ago

$70k - $126k/yr Full time Cybersecurity Tools Data Platform Data Processing

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Job Description

Leidos offers a purpose-driven, collaborative environment with a strong focus on technical growth and work-life balance. This onsite role in Huntsville, Alabama places you on the CEMA team, building a cyber operations platform, integrating open-source tools, and creating IDS/IPS algorithms and dashboards for tactical edge systems. A TS/SCI clearance is required and US citizenship is needed to support mission-critical work.

In this position, you will contribute from the heart of the security operations lifecycle in Huntsville, shaping how cyber data is collected, analyzed, and acted upon at the tactical edge.

Benefits

Paid Time Off
11 paid Holidays
401K with a 6% company match and immediate vesting
Flexible Schedules
Discounted Stock Purchase Plans
Technical Upskilling
Education and Training Support
Parental Paid Leave
Competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

Responsibilities

Develop procedures and techniques for ongoing use of a cyber operations platform within a customer designated environment
Evaluate, select, and integrate open-source cyber tools to enhance the platform
Develop new IDS/IPS algorithms to detect malicious behavior
Create graphical cyber dashboards and tooling to improve visibility into monitored cyber activities
Develop custom installers to deliver reliable, field-ready capabilities to tactical edge systems

Requirements

Minimum 2-4 years of professional development in various programming languages with demonstrable ability via GitHub, printouts, or provided media
Bachelor’s degree in cybersecurity, computer engineering, computer science, or a related technical field
Ability to write software and scripts in Python, BASH, C++, HTML, or Javascript
Familiarity with dissection of network protocols using Wireshark and related tools
Experience with virtualization and containerization technologies such as Vagrant, Docker, Podman, VirtualBox, and Kubernates
Must be a US citizen and be able to obtain and maintain a TS/SCI clearance

Technologies

Python
BASH
C++
HTML
Javascript
Wireshark
Vagrant
Docker
Podman
VirtualBox
Kubernates
Elasticsearch
Logstash
Kibana
Git
Jenkins
Make
Jira

Compensation

Salary range: $69,550.00 - $125,725.00 per year

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1d ago

Senior Software Engineer – MAVEN (Hybrid)

JFL Consulting LLC Springfield, VA

Springfield, VA

1d ago

$170k - $250k/yr Full time Senior APIs Build Tools

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Job Description

JFL Consulting LLC offers a benefits-forward culture that supports critical national security missions through advanced COP, geospatial visualization, and data integration using Palantir Foundry and MAVEN Smart System. This hybrid Senior Software Engineer role in Springfield, VA provides a competitive salary of USD 170,000 - 250,000 per year, a comprehensive benefits package including health, life and disability insurance, a 401(k) with immediate vesting, flexible spending accounts, generous paid time off, certification reimbursement, professional development funding, and access to online learning platforms. The position requires a Secret clearance and involves on-site work at a DMV-area customer site with a hybrid schedule.

Responsibilities

Design and implement common operating picture and geospatial visualization capabilities.
Leverage Palantir Foundry, AIP, and MSS platforms where applicable to accelerate development.
Integrate sensor detections, operational data, and real-time data feeds.
Develop intuitive analyst workflows and user-facing applications.
Optimize visualization performance for large-scale datasets.

Requirements

Bachelor’s degree in computer science or engineering, or related field, or equivalent experience.
8+ years of software engineering experience, including work on geospatial, visualization, or COP applications.
2+ years of direct experience developing on Palantir Foundry, AIP, or MAVEN Smart System.
IAT Level II certification (Security+ CE, CySA+, CCNA Security, GSEC).
Minimum Secret clearance.

Technologies

Palantir Foundry
MAVEN Smart System
MSS
AIP
Esri/ArcGIS
Cesium
Mapbox
TypeScript
React
Python
OWL
RDF

Benefits

Health insurance covering medical, dental, and vision premiums
Life insurance
Short-term disability
Long-term disability
401(k) with immediate vesting of company contributions
Flexible Spending Accounts for healthcare, dependent care, and commuter needs
Generous paid time off including vacation, sick, personal days, and holidays
Certification reimbursement
Professional development funding
Access to online learning platforms

Place of performance

Customer site in the DMV area with a hybrid schedule.

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1d ago

Senior Software Engineer

Melon Local Las Vegas, NV 🇺🇸 Remote

Las Vegas, NV

1d ago

$130k - $160k/yr Full time Backend Developer Senior Ai Design Tools

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Job Description

Responsibilities

Conceive and design features that span our interconnected stack, including Azure Functions, dual Web APIs, an ASP.NET MVC web application, and a customer-facing React interface served by a .NET Backend-for-Frontend that consumes the same Web APIs.
Make AI tooling the primary implementation method, guiding AI-driven output while applying your deep architectural understanding to ensure solid results.
Shape cross-system integration decisions, defining API contracts, BFF aggregation logic, and the division of responsibilities among Azure Functions, Web APIs, and the MVC app.
Debug across the full stack by tracing issues from the React UI through the BFF, into the Web APIs, and down to SQL Server.
Review code with a focus on AI-generated or AI-augmented contributions, looking for subtle defects, architectural drift, or pattern violations.
Participate in architecture discussions and code reviews as a collaborative engineer among peers, rather than issuing directives.
Treat AI coding tools as a daily capability, integrating them into regular development practice.

Requirements

5+ years of professional .NET engineering experience with recent hands-on work.
Strong knowledge of C#, .NET Core or .NET 8+, ASP.NET MVC, Web APIs, and Razor, with the ability to write these components from scratch if needed.
Working familiarity with Entity Framework Core, including DbContext injection, LINQ, migrations, and performance best practices; able to explain DbContext registration and usage.
SQL Server proficiency for querying, indexing, execution plans, and identifying N plus 1 problems.
Experience with React for customer-facing applications.
Comfort with Azure Functions or comparable serverless patterns.
Architectural intuition across multiple related services, capable of identifying which projects require changes when evaluating a feature spec.
Experience with AI-augmented development and enthusiasm for making AI tooling a primary implementation method.
Ability to validate code with the same rigor as producing it, and to think through implementation end to end before drafting prompts.

Technologies

Azure Functions, Web APIs, ASP.NET MVC, React
.NET Core, .NET 8+, C#, Razor
Entity Framework Core, SQL Server
Backend-for-Frontend (BFF)
AI tooling: Claude Code, Copilot, Cursor, Codex
Git, Azure, REST APIs

Benefits

Medical, dental, and vision insurance
Bereavement leave
401(k) with 4% match
Paid time off and paid holidays
Paid sick time
Parental leave
Referral program
Flexible scheduling options

This role may not be a fit if

You do not use AI development tools daily or prefer to write every line of code yourself
Your recent work has focused on management, strategy, or architecture without active implementation
You cannot comfortably review a 200-line .NET pull request and identify issues, as code reviews of AI-produced material are central
You are seeking a Staff or Principal architect role with focus on directing others rather than implementing features
You have not worked across multiple related .NET projects such as APIs, MVC apps, serverless functions, and BFFs
You are skeptical about AI-augmented development and its trajectory for professional engineering

Logistics

Location is remote with preference for candidates in the Salt Lake City, UT or Las Vegas, NV metropolitan areas, or within reasonable driving distance for occasional in-person collaboration. Schedule is Monday through Friday, full-time. Reports to the Software Engineering Manager. Melon Local is an equal opportunity employer and values diversity and inclusion across the organization.

Compensation & Benefits

Base salary: $130,000–$160,000 per year, DOE
Medical, dental, and vision insurance
Bereavement leave
401(k) with 4% match
Paid time off and paid holidays
Paid sick time
Parental leave
Referral program
Flexible scheduling options

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1d ago

Senior Full Stack Software Engineer (Mobile + Web) — SaaS Field Operations Platform

Oculus Systems Security Lakewood, CO

Lakewood, CO

1d ago

$60k - $140k/yr Full time Backend Developer Senior APIs

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Job Description

Oculus Systems Security is seeking a Senior Full Stack Software Engineer (Mobile + Web) for a SaaS Field Operations Platform. This onsite role in Lakewood, CO blends support for a legacy PHP/Laravel stack and native iOS/Android apps with building a next-generation Python/Django and React/React Native platform. The position emphasizes real ownership, a focused two-person engineering approach, and a culture that values reliability and compliance. On-the-job training, paid sick time, and paid time off are provided as part of the benefits package.

Responsibilities

Legacy Platform (production): Laravel 5.8 / PHP 7.4 monorepo with multiple web apps (customer-facing permit portal, parking operations, HQ, admin/backend), a Laravel REST API, and native iOS/Android apps
PostgreSQL on AWS RDS, EC2 behind an Application Load Balancer, CodePipeline/CodeBuild deployments
Payment/subscription processing via Authorize.net ARB, transactional emails via Postmark
Bug fixes, incident response, targeted remediation work, and controlled feature changes to maintain reliability and compliance while the system is being phased out
Next-Gen Platform (active build): Multi-tenant SaaS ERP for managing distributed field/security personnel, clients, and client properties
Backend: Django 5.0 + Django REST Framework, django-tenants (schema-based multi-tenancy), Celery for background/scheduled jobs
Frontend: React
Mobile: React Native (iOS + Android) for the field-worker interface, including shift check-ins, offline data sync, geofencing, and photo capture with EXIF/compression handling
Data layer: PostgreSQL (Aurora), Redis (ElastiCache) for caching/queues
Infrastructure: AWS (VPC, ALB, EC2, CodePipeline/CodeBuild/CodeDeploy), JWT-based authentication, service-layer architecture with clear separation between views/serializers/business logic

Requirements

Mobile app development experience is required — native iOS/Android or React Native, ideally exposure to both. Comfortable with offline-first patterns, background sync, geolocation, and device permissions (camera, GPS).
Full-stack capabilities including backend API design (REST), relational database design (PostgreSQL preferred), and frontend web development (React).
Ability to work across two tech stacks simultaneously (PHP/Laravel legacy + Python/Django modern) without requiring greenfield projects to do good work.
Experience with multi-tenant SaaS architecture is a strong plus (schema-based tenancy, tenant isolation patterns).
AWS familiarity: EC2, RDS/Aurora, ALB, CI/CD pipelines (CodePipeline/CodeBuild or equivalents like GitHub Actions/CircleCI).
Experience with payment/subscription systems (Authorize.net, Stripe, or similar) is a plus given the ARB-based legacy billing.
Strong independent judgment and the ability to work autonomously on production systems with legal/compliance weight.

Technologies

Laravel
PHP
iOS
Android
PostgreSQL
AWS
CodePipeline
CodeBuild
CodeDeploy
Authorize.net
Postmark
Django
Django REST Framework
django-tenants
Celery
React
React Native
Aurora (PostgreSQL)
Redis
ElastiCache
JWT
VPC
ALB
EC2
Stripe
GitHub Actions
CircleCI
REST API
Python

Benefits

On-the-job training
Paid sick time
Paid time off

Why this role?

Direct ownership is a core aspect of this role. You will be one of two engineers shaping architecture and delivering meaningful impact, not one of many contributors. You will experience a full legacy-to-modern platform migration from the inside, influencing decisions as the platform evolves while the old system remains live.

Pay

USD 60,000.00 - 140,000.00 per year

Location

Lakewood, CO (onsite)

Nice to have

Experience with field-service, workforce-management, or security-industry software
Familiarity with geofencing/location-based features
Experience migrating a legacy system to a new platform while keeping the old one live
Comfort with Jira-based sprint workflows (1-week sprints, story-pointed backlog)