Explore 3 javascript typescript engineer react jobs from 3 hiring companies in Mountville, PA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

javascript-typescript-engineer-react

Javascript Typescript Engineer React

Lancaster

Columbia

Millersville

Mount Joy

York

Elizabethtown

Lititz

Ephrata

Willow Street

Lebanon

East Petersburg

Hershey

Weigelstown

East York

Shiloh

Harrisburg

Salunga

Leola

Manheim

Javascript Typescript Engineer React Jobs

Allegis Group

RevSpring

Sev1Tech

Hybrid

Onsite

Remote

Overview:
Job Summary:The Forward Deployed Engineer (FDE) is an execution-focused engineer embedded directly with business, product, and delivery teams to rapidly design, build, and validate high-impact solutions. This role bridges engineering, product, and business, turning problems into working software, pilots, and proofs of value. Focused on Connected, a multi-year strategic program focused on modernizing and digitizing Sales, Recruiting, and Marketing capabilities across Allegis Group and its operating companies. The Forward Deployed Engineer (FDE) is a critical execution role within the Connected program, responsible for rapidly deploying technical solutions directly into business workflows to validate value, inform product investment, and accelerate adoption. The FDE operates at the intersection of AI, data, platforms, and user workflows, deploying solutions “forward” into real environments, validating outcomes quickly, and informing scale decisions. This role is critical to evidence first delivery, rapid experimentation, and accelerating enterprise adoption of new capabilities.

Responsibilities:
Essential Functions:The Forward Deployed Engineer is responsible for:<ul><li style="margin-bottom: 0in;">Rapidly translating business problems into working technical solutions</li><li style="margin-bottom: 0in;">Building proofs-of-concept, and experiments that demonstrate measurable value</li><li style="margin-bottom: 0in;">Embedding with stakeholders (Product, Business, Ops, Data, UX) to co-design solutions</li><li style="margin-bottom: 0in;">Iterating quickly based on user feedback and real-world constraints</li><li style="margin-bottom: 0in;">Deploying solutions into live or near-live environments to validate adoption, performance, and outcomes</li><li style="margin-bottom: 0in;">Shaping architecture, integration patterns, and scalability paths for future productionalization</li><li style="margin-bottom: 0in;">Acting as a technical advisor to leadership on feasibility, tradeoffs, and scale readiness</li><li style="margin-bottom: 0in;">Partner directly with stakeholders to understand workflows, pain points, and success criteria </li><li style="margin-bottom: 0in;">Design and implement full-stack or system-level solutions across front-end, back-end, integrations, and data layers </li><li style="margin-bottom: 0in;">Build AI-enabled or data-driven capabilities where appropriate (e.g., agents, automation, decision support) </li><li style="margin-bottom: 0in;">Integrate with enterprise platforms (Salesforce, APIs, data platforms, identity, messaging) </li><li style="margin-bottom: 0in;">Own end-to-end delivery from concept through deployment and measurement </li><li style="margin-bottom: 0in;">Instrument solutions to capture usage, performance, and business impact </li><li style="margin-bottom: 0in;">Communicate outcomes clearly to technical and non-technical audiences Identify risks, constraints, and architectural implications early </li><li style="margin-bottom: 0in;">Hand off validated solutions with clear documentation and recommendations for scaling or sunset</li></ul> Supervisory or Management Responsibility:<ul><li style="margin-bottom: 0in;">Technical leadership across cross-functional teams </li><li style="margin-bottom: 0in;">Mentoring engineers on rapid prototyping, experimentation, and pragmatic delivery </li><li style="margin-bottom: 0in;">Influencing design and delivery standards without direct authority</li></ul> Budget Responsibility:<ul><li style="margin-bottom: 0in;">Contributes to licensing projections and vendor assessments</li></ul>

Qualifications:
Minimum Education and/or Experience:<ul><li style="margin-bottom: 0in;">Bachelor's degree in computer science, Information Systems, or equivalent combination of education and work experience </li><li style="margin-bottom: 0in;">8+ years of professional software engineering experience</li><li style="margin-bottom: 0in;">Strong backend heavy full stack engineering skills, with working proficiency in modern frontend frameworks (React or similar)</li><li style="margin-bottom: 0in;">Experience building and deploying real-world solutions in production or near-production settings</li><li style="margin-bottom: 0in;">Strong experience with TypeScript / JavaScript for backend services (Node.js preferred)</li><li style="margin-bottom: 0in;">Strong understanding of system design, scalability, and performance tradeoffs</li><li style="margin-bottom: 0in;">Experience integrating with SaaS platforms (Salesforce, Google, Snowflake)</li><li style="margin-bottom: 0in;">Comfort working with data, APIs, and automation pipelines</li><li style="margin-bottom: 0in;">Experience in Agile or rapid experimentation environments</li><li style="margin-bottom: 0in;">Hands-on experience designing and deploying backend services in cloud environments </li><li style="margin-bottom: 0in;">Strong experience with infrastructure-as-code </li><li style="margin-bottom: 0in;">Experience owning environments end-to-end (local → dev → prod) </li><li style="margin-bottom: 0in;">Familiarity with cloud-native services (compute, storage, networking, IAM)</li><li style="margin-bottom: 0in;">Strong backend data experience, including SQL-based databases</li></ul> Preferred Qualifications:<ul><li style="margin-bottom: 0in;">Recent hands-on experience with agentic or orchestration frameworks for AI-driven applications</li><li style="margin-bottom: 0in;">Experience building autonomous or semi-autonomous systems that interact with APIs, data stores, or workflows</li><li style="margin-bottom: 0in;">Familiarity with data platforms, analytics, or experimentation frameworks</li><li style="margin-bottom: 0in;">Salesforce platform knowledge (Sales, Service, Experience Cloud)</li></ul> Skills/Abilities:<ul><li style="margin-bottom: 0in;">Excellent problem-framing and analytical thinking</li><li style="margin-bottom: 0in;">Strong communication skills across business, technical, and executive audiences</li><li style="margin-bottom: 0in;">Ability to operate autonomously with minimal direction</li><li style="margin-bottom: 0in;">Comfort presenting unfinished work and iterating quickly</li><li style="margin-bottom: 0in;">High adaptability in complex, enterprise environments</li><li style="margin-bottom: 0in;">Bias for action and ownership</li><li style="margin-bottom: 0in;">Strong customer empathy and user-centered thinking</li><li style="margin-bottom: 0in;">Works on ambiguous, high-impact problems, not long backlogs </li><li style="margin-bottom: 0in;">Optimizes for learning speed and outcome validation, not just delivery </li><li style="margin-bottom: 0in;">Balances clean design with pragmatism </li><li style="margin-bottom: 0in;">Is comfortable operating without perfect requirements </li><li style="margin-bottom: 0in;">Influences roadmap and investment decisions through evidence</li></ul> Core Competencies:<ul><li style="margin-bottom: 0in;">Building Relationships</li><li style="margin-bottom: 0in;">Develop People</li><li style="margin-bottom: 0in;">Lead Change</li><li style="margin-bottom: 0in;">Inspire Others</li><li style="margin-bottom: 0in;">Think Critically</li><li style="margin-bottom: 0in;">Communicate Clearly</li><li style="margin-bottom: 0in;">Create Accountability</li></ul> Office Requirements:<ul><li style="margin-bottom: 0in;">Required in office 2-3 days a week out of our headquarters in Hanover, MD or offices in Jacksonville, FL</li></ul> Benefits Overview:Benefits are subject to change and may be subject to specific elections, plan, or program terms.  This role is eligible for the following:<ul><li style="margin: 0in 0in 0in .75in;">Medical, dental & vision</li><li style="margin: 0in 0in 0in .75in;">Hospital plans</li><li style="margin: 0in 0in 0in .75in;">401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available</li><li style="margin: 0in 0in 0in .75in;">Life Insurance (Company paid Basic Life and AD&D as well as voluntary Life & AD&D for the employee and dependents)</li><li style="margin: 0in 0in 0in .75in;">Company paid Short and long-term disability</li><li style="margin: 0in 0in 0in .75in;">Health & Dependent Care Spending Accounts (HSA & DCFSA)</li><li style="margin: 0in 0in 0in .75in;">Transportation benefits</li><li style="margin: 0in 0in 0in .75in;">Employee Assistance Program</li><li style="margin: 0in 0in 0in .75in;">Tuition Assistance</li><li style="margin: 0in 0in 0in .75in;">Time Off/Leave (PTO, Allegis Group Paid Family Leave, Parental Leave)</li></ul> Salary Range:<ul><li style="margin-bottom: 0in;">$121,582 - $182,426</li><li style="margin-bottom: 0in;">The position is bonus-eligible</li></ul> Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.  <table style="width: 500.95pt; margin-left: 6.75pt; border-collapse: collapse;" width="668"><tbody><tr><td style="width: 500.95pt; border: solid windowtext 1.0pt; padding: 0in 5.4pt 0in 5.4pt;" width="668">The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email Lauren Lara at <a href="mailto:llara@allegisgroup.com" target="_blank" rel="noopener">llara@allegisgroup.com</a> or call 410-579-3526 for other accommodation options. </td></tr></tbody></table>

Developer (Forward Deployed Engineer)

Developer

8+ years of software engineering; strong backend with frontend skills; production experience; TypeScript/JavaScript (Node.js); cloud and API integration; Agile/rapid experimentation.

<div>
<div>Job Title:  Staff Software Engineer</div>

<div> </div>

<div> </div>

<div>Essential Functions:</div>

<ul>
	<li>The typical day will include attending Agile standups, designing components or services, writing lots of code, testing and integrating code, and reviewing others’ code.</li>
	<li>Participate in and contribute to Agile team activities. Help estimate the amount of time and effort projects will take as part of the sprint cycle.</li>
	<li>Apply software engineering best practices, coding standards and patterns for development and deployment.</li>
	<li>Investigate alerts about possible errors in the system. Help solve outages, participate in retrospectives, and implement countermeasures to prevent similar issues from recurring.</li>
	<li>Lead team members in one or more functional areas and/or domains, and influence across organizational levels, divisions, departments, and teams.</li>
	<li>Contribute to the development of other software engineers and the team.  Mentor engineers on areas of technical expertise and share  knowledge on relevant topics  by presenting at Lunch &amp; Learns, Technical Brown Bags, and demos.</li>
	<li>Set technical direction, influence the organization’s technical strategy, and make critical choices that positively impact the organization.</li>
	<li>Build, scale, and deliver dynamic and highly-available enterprise solutions</li>
	<li>Think creatively about how to use technology and tools to solve problems faced by  users and customers.</li>
	<li>Evaluate and recommend new technologies relevant to add to our stack.</li>
	<li>Help the Agile team execute on sprint deliverables</li>
	<li>Provide an educated estimate of effort for the sprint cycle</li>
	<li>Think creatively about how to use technology and tools to solve problems faced by users and customers.</li>
	<li>Escalate issues to the Agile team in a timely manner</li>
	<li>Troubleshoot issues and debug code to find the root cause of issues and develop countermeasures to address them.</li>
	<li>Design components that are stable, robust, performant, secure, and scale to accommodate anticipated user volume. 
	 </li>
</ul>

<div>Minimum Requirements:</div>

<div>Specific Job Skills: </div>

<ul>
	<li>Proficiency with some or all of the following: JavaScript, TypeScript, React, Node,Python, Flask, end to end and unit testing frameworks</li>
	<li>Cloud &amp; Virtualization: Deep expertise in AWS, Azure, or GCP with Pulumi or Terraform experience</li>
	<li>Hands-on with Docker, , and related tools.</li>
	<li>Strong understanding of TCP/IP, firewalls, VPNs, security best practices</li>
</ul>

<div> </div>

<div> </div>

<div>Education: Bachelor’s degree</div>

<div>Experience:</div>

<ul>
	<li>8+ years of Object Oriented Programming with Python or equivalent (required)</li>
	<li>8+ years of experience working with relational (SQL) databases (required)</li>
	<li>8+ years of experience using Git to contribute code as part of a team of software engineers</li>
</ul>

<div>Supervision: N/A</div>

<div>Certifications: N/A</div>

<div>Language Skills:</div>

<div>Ability to read, analyze and interpret general business periodicals, professional journals, technical procedures or governmental regulations. Ability to write reports, business correspondence and procedure manuals. Ability to effectively present information and respond to questions from a variety of both internal and external sources. </div>

<div> </div>

<div>Physical Capabilities:  Standard categories</div>

<div>The physical capabilities described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.</div>

<div> </div>

<div>While performing the duties of this job, the employee is regularly required to sit; use hands to finger, handle, or feel; reach with hands and arms; and talk or hear. The employee is occasionally required to stand and walk. The employee must occasionally lift and/or move up to 10 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus.</div>

<div> </div>

<div>RevSpring is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.</div>

<div> </div>

<div>Note: This Job Description may not describe all of the job responsibilities and standards assigned to this position. The duties may change from time to time.  RevSpring does not discriminate against any group in hiring or employment practices.  Nothing in this job description constitutes a contract for employment.</div>

<div> </div>
</div>

Staff Software Engineer- Python

Staff Software Engineer

8+ years OOP with Python; 8+ years SQL; 8+ years Git; Bachelor's; skilled in JS/TS/React/Node/Python; cloud (AWS/Azure/GCP); Docker; security basics.

Overview/ Job Responsibilities:
Sev1Tech is seeking a Senior Software Engineer for the Naval Supply Systems Command (NAVSUP) Ordnance Information System (OIS) program based in Mechanicsburg, PA, and Yorktown, VA, as they modernize their legacy IT systems. This role will bring strong systems, software, cloud, and SAFE/Agile experience to provide technical expertise on a mission-critical program whose purpose is to develop and modernize OIS mission critical systems. In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable, real-time systems. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines, and other resource constraints. You will participate in all aspects of the software development lifecycle of a mission critical product including scope and work estimation, architecture and design, coding and unit testing. The right candidate will be working with our program’s developers, engineers, operations, and integration teams to support a complex program to provide Agile development and operations and maintenance on a mission-critical program. This position is remote but visits to customer site will be required. Currently, customer site visits for Program Increment Planning occur every 10 weeks. Primary Responsibilities: As Senior Software Engineer, you will:<ul><li>Participate in all aspects of the software development lifecycle of a mission critical product including scope and work estimation, architecture and design, coding and unit testing, and debugging and maintenance. </li><li>Translate customer needs into user stories and deliver working capabilities at the conclusion of each sprint.</li><li>Ensure software developed passes and completes stages within the CI pipeline.</li><li>Write automated test such as unit, integration, functional, 508, performance, and end-to-end</li><li>Develop in environments that utilize CI/CD tools for build, test, secure and deploy</li><li>Develop in a Docker and Docker Compose environment</li><li>Interface with software developers, analysts, and other project team members using Agile SCRUM methodology and SAFe to deliver features that enhance system capabilities and facilitate NAVSUP OIS’s mission.</li><li>Mentor other software developers on the team to enhance their skills.</li><li>Participate and/or lead sprint demonstrations and facilitate implementation of agreed upon ideas identified at retrospectives.</li><li>Work with others on product teams to develop solutions to hard problems that are impeding progress.</li><li>Effectively communicate technical challenges, options considered, and the recommended solution to team leads. </li></ul>

Minimum Qualifications:
<ul><li>Must have DOD Secret level clearance to start</li><li>Certification Requirement: Directive 8570.1/8140 - Security+ certification required</li><li>Bachelor’s degree with a minimum of 7 years of relevant experience.</li><li>Must be a self-starter with the ability to work independently with minimal supervision.</li><li>Experience developing in a microservices architecture</li><li>Experience developing in a containerized environment</li><li>Experience writing automated tests such as unit, integration, functional, 508, performance, and end-to-end.</li><li>Experience developing in environments that utilize CI/CD tools for build, test, secure and deploy</li><li>Experience with IT networks and technologies; preferably Spring Boot, Linux, Java, Java Servlet, JUnit, JavaScript, HTML, CSS, TypeScript, Axios, Maven, Vue.JS, Ionic, React</li><li>Experience with an agile lifecycle management tool (e.g., Jira, Azure DevOps, Gitlab Ultimate)</li><li>Proficiency with common SAFE and Agile practices, service-oriented environments, and better development practices</li><li>Experience with API Design and Management</li><li>Experience developing Web Services (SOAP, REST)</li><li>Excellent written and verbal communication skills</li></ul>

Desired Qualifications:
<ul><li>Bachelor’s degree with a minimum of 12 years of relevant experience preferred</li><li>Experience as a software developer supporting logistics IT systems</li><li>Familiarity with and prior use of test automation, e.g., Selenium, Citrus</li><li>Knowledge of AWS Relational Database Services</li><li>Experience with DevSecOps frameworks</li><li>Experience with Helm Charts</li><li>Experience as a developer within the AWS environment is a plus</li><li>Direct experience in providing customer support.</li><li>Experience with Message-Oriented Middleware (MOM)</li><li>Experience with Performance Optimization and Scalability</li><li>Experience with policies and procedures to escalate customer issues.</li><li>Experience with analytical and documentation requirements.</li></ul>

About Us:
Formed through the strategic union of Sev1Tech and ERT, Entarian is a premier provider of mission-critical engineering and technology solutions. Founded on a legacy of excellence dating back to 1993, Entarian is a product of an evolved and fully diversified engineering and federal technology leader. From deep space to defense and civilian missions, Entarian delivers secure, mission-aligned digital solutions that drive national resilience and operational effectiveness. We don't just support modernization; we define it. Join the Mission and Start your Career Journey: <a href="https://entarian.com/careers/" target="_blank" data-auth="NotApplicable" rel="noopener">Apply Directly via our Careers Portal</a>  Connect, Referrals & Inquiries? Email the team: <a href="mailto:careers@entarian.com" target="_blank" rel="noopener">careers@entarian.com</a> Entarian is an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

Senior Software Engineer

DOD Secret clearance required; Security+ certification; Bachelor’s degree with 7+ years’ experience; experience with microservices, containers, CI/CD, and Agile/SAFe.

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