Senior Full Stack Engineer Contract Length: 1 year Location: NYC Work Setup: Onsite Join a forward-thinking organization modernizing critical business systems that support complex, highly regulated ...
60 Guideline Full Stack Engineer Jobs Hiring Near You
Senior Full Stack Engineer Contract Length: 1 year Location: NYC Work Setup: Onsite Join a forward-thinking organization modernizing critical business systems that support complex, highly regulated ...
Full-Stack Engineer Senior
Manhattan, NY ยท On-site
Senior Full Stack Engineer Contract Length: 1 year Location: NYC Work Setup: Onsite Join a forward-thinking organization modernizing critical business systems that support complex, highly regulated ...
Full-Stack Engineer Senior
Manhattan, NY ยท On-site
Senior Full Stack Engineer Contract Length: 1 year Location: NYC Work Setup: Onsite Join a forward-thinking organization modernizing critical business systems that support complex, highly regulated ...
Full Stack Engineer
Schaumburg, IL ยท On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
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Full Stack Engineer
Schaumburg, IL ยท On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
Full Stack Engineer II
Mclean, VA ยท On-site
$75K - $130K/yr
Implement secure coding practices and ensure compliance with security guidelines. * Contribute to ... Full Stack Software Engineer II Legal Disclaimer: All qualified applicants will receive ...
Full Stack Engineer II
Mclean, VA ยท On-site
$75K - $130K/yr
Implement secure coding practices and ensure compliance with security guidelines. * Contribute to ... Full Stack Software Engineer II Legal Disclaimer: All qualified applicants will receive ...
Full Stack Engineer
Boston, MA ยท On-site
Our full stack engineers work across a range of client, middle tier, messaging, caching and database technologies including Java, TypeScript, JavaScript, SQL and PL/SQL. 1+ years' experience with ...
Full Stack Engineer
Boston, MA ยท On-site
Our full stack engineers work across a range of client, middle tier, messaging, caching and database technologies including Java, TypeScript, JavaScript, SQL and PL/SQL. 1+ years' experience with ...
Full Stack Engineer II
Mclean, VA ยท On-site
Implement secure coding practices and ensure compliance with security guidelines. * Contribute to ... Full Stack Software Engineer II Legal Disclaimer: All qualified applicants will receive ...
Full Stack Engineer II
Mclean, VA ยท On-site
Implement secure coding practices and ensure compliance with security guidelines. * Contribute to ... Full Stack Software Engineer II Legal Disclaimer: All qualified applicants will receive ...
Full Stack Engineer II
Mclean, VA ยท On-site
Full Stack Engineer II The Full Stack Engineer II designs, develops, and maintains scalable, high ... Implement secure coding practices and ensure compliance with security guidelines. * Contribute to ...
Full Stack Engineer II
Mclean, VA ยท On-site
Full Stack Engineer II The Full Stack Engineer II designs, develops, and maintains scalable, high ... Implement secure coding practices and ensure compliance with security guidelines. * Contribute to ...
Full Stack Engineer
Houston, TX ยท On-site
$100/hr
The Full Stack Engineer develops, integrates, and maintains robust web and mobile applications that power modern digital experiences. This role bridges product vision and technical execution ...
Full Stack Engineer
Houston, TX ยท On-site
$100/hr
The Full Stack Engineer develops, integrates, and maintains robust web and mobile applications that power modern digital experiences. This role bridges product vision and technical execution ...
Full Stack Engineer
Houston, TX ยท On-site
$75 - $95/hr
Full Stack Engineer Location: Houston, TX (Hybrid) Job Type: Contract-to-Hire Pay: $75.00 -$95.00 / Per Hour Benefits: This position is eligible for medical, dental, vision, and 401(k). About the ...
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Full Stack Engineer
Houston, TX ยท On-site
$75 - $95/hr
Full Stack Engineer Location: Houston, TX (Hybrid) Job Type: Contract-to-Hire Pay: $75.00 -$95.00 / Per Hour Benefits: This position is eligible for medical, dental, vision, and 401(k). About the ...
Full Stack Engineer
Manassas, VA ยท On-site
Full Stack Engineer Department: Operations - Services Reports To: RavenTek Program Manager Location: Manassas, VA (Must live within driving distance) Schedule: Monday - Friday Hours: Full-time, 40 ...
Full Stack Engineer
Manassas, VA ยท On-site
Full Stack Engineer Department: Operations - Services Reports To: RavenTek Program Manager Location: Manassas, VA (Must live within driving distance) Schedule: Monday - Friday Hours: Full-time, 40 ...
Full-Stack Engineer
San Francisco, CA ยท On-site
$120K - $150K/yr
Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE
Full-Stack Engineer
San Francisco, CA ยท On-site
$120K - $150K/yr
Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE
Full Stack Engineer
Tamarac, FL ยท On-site
$95K - $170K/yr
The Full Stack Engineer will work closely with technical leadership and business stakeholders to implement features, improve system reliability, and support ongoing platform growth. The ideal ...
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Full Stack Engineer
Tamarac, FL ยท On-site
$95K - $170K/yr
The Full Stack Engineer will work closely with technical leadership and business stakeholders to implement features, improve system reliability, and support ongoing platform growth. The ideal ...
Full-Stack Engineer
San Francisco, CA ยท On-site
$120K - $150K/yr
Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE
Quick apply
Full-Stack Engineer
San Francisco, CA ยท On-site
$120K - $150K/yr
Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE
Full-Stack Engineer
$120K - $150K/yr
Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE
Full-Stack Engineer
$120K - $150K/yr
Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE
Full Stack Engineer
Fremont, CA ยท On-site
$50 - $55/hr
Job Title Full Stack Engineer 3-5+ years (Mid-level) - Preferable less than 10 years experience ... Pay Rate Guidelines $50-55/hr. on W2 Top Requirements (Must haves) Must-Have Skills and ...
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Full Stack Engineer
Fremont, CA ยท On-site
$50 - $55/hr
Job Title Full Stack Engineer 3-5+ years (Mid-level) - Preferable less than 10 years experience ... Pay Rate Guidelines $50-55/hr. on W2 Top Requirements (Must haves) Must-Have Skills and ...
Full Stack Engineer
Manassas, VA ยท On-site
$175K - $215K/yr
Full Stack Engineer Department: Operations - Services Reports To: RavenTek Program Manager Location: Manassas, VA (Must live within driving distance) Schedule: Monday - Friday Hours: Full-time, 40 ...
Full Stack Engineer
Manassas, VA ยท On-site
$175K - $215K/yr
Full Stack Engineer Department: Operations - Services Reports To: RavenTek Program Manager Location: Manassas, VA (Must live within driving distance) Schedule: Monday - Friday Hours: Full-time, 40 ...
Full-Stack Engineer
Manhattan, NY ยท Hybrid
Title-Full-Stack Engineer Location: Chicago hybrid (2 days on-site 3 days remote) Final round on-site interview The Full Stack developer Engineer engineers secure, scalable and reliable technology ...
Full-Stack Engineer
Manhattan, NY ยท Hybrid
Title-Full-Stack Engineer Location: Chicago hybrid (2 days on-site 3 days remote) Final round on-site interview The Full Stack developer Engineer engineers secure, scalable and reliable technology ...
OR ยท On-site
The Full Stack Engineer needs to be agile, professional, trustworthy with confidential information, and comfortable in a rapidly changing environment. You will work closely with engineering, service ...
OR ยท On-site
The Full Stack Engineer needs to be agile, professional, trustworthy with confidential information, and comfortable in a rapidly changing environment. You will work closely with engineering, service ...
Full Stack Engineer
Santa Clara, CA ยท On-site
Full Stack Engineer Location: Santa Clara,CA Duration: Long Term Responsibilities: * Analyze network automation requirements across full stack. * Participate in solution design and review process for ...
Full Stack Engineer
Santa Clara, CA ยท On-site
Full Stack Engineer Location: Santa Clara,CA Duration: Long Term Responsibilities: * Analyze network automation requirements across full stack. * Participate in solution design and review process for ...
Full Stack Engineer
San Diego, CA ยท On-site +1
Full Stack software engineer Location: San Diego, CA Clearance Level: Secret We are looking for a Full Stack software engineer who can join our team and make an immediate impact through their ...
Full Stack Engineer
San Diego, CA ยท On-site +1
Full Stack software engineer Location: San Diego, CA Clearance Level: Secret We are looking for a Full Stack software engineer who can join our team and make an immediate impact through their ...
Guideline Jobs Information
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Job description
Senior Full Stack Engineer
Contract Length: 1 year
Location: NYC
Work Setup: Onsite
Join a forward-thinking organization modernizing critical business systems that support complex, highly regulated operations. As a Senior Full Stack Engineer, you will transform legacy applications into reliable, maintainable, and well-tested solutions using .NET 8, Angular, SQL Server, Azure DevOps, and AI-assisted engineering workflows.
Senior Full Stack Engineer Responsibilities
- Design and develop .NET 8 services and Angular applications while accurately preserving established business rules.
- Migrate schemas and data from Ingres to SQL Server, including reconciliation and validation to confirm data integrity.
- Analyze legacy source code and collaborate with subject matter experts to document and reconstruct system behavior.
- Apply LLM-assisted workflows to code analysis, development, testing, and technical documentation.
- Deliver production-ready software through Azure DevOps, automated testing, code reviews, and CI/CD pipelines.
- Create architecture documentation, ADRs, implementation plans, and production-support readiness materials.
- Partner with business stakeholders and technical teams to clarify requirements and reduce modernization risk.
Senior Full Stack Engineer Qualifications
- 8+ years of professional software engineering experience, including senior-level ownership from design through production support.
- Advanced C# and .NET expertise, including ASP.NET Core, EF Core, dependency injection, concurrency, resilience, observability, and automated testing.
- Strong Angular and TypeScript experience, preferably Angular 17+, including RxJS, signals, reactive forms, performance optimization, and change detection.
- Advanced SQL Server and T-SQL skills, including relational design, indexing, execution plans, locking, concurrency, and migrations as code.
- Proven system-design experience with domain-driven design, clean architecture, strangler-fig patterns, and anti-corruption layers.
- Daily experience with AI development tools such as GitHub Copilot, Claude Code, or comparable platforms.
- Ability to review AI-generated output critically and verify it through specifications, testing, and human review.
- Strong analytical skills and comfort working with unfamiliar legacy systems.
Senior Full Stack Engineer Preferred Qualifications
- Experience with VB.NET, VB6, OpenROAD, PowerBuilder, Oracle Forms, Ingres, or similar legacy technologies.
- Familiarity with electric utilities, IT/OT environments, regulated operations, or operational business systems.
- Experience delivering modernization programs where accuracy, auditability, and business continuity are essential.
The ideal Senior Full Stack Engineer is a hands-on technical leader who enjoys solving complex modernization challenges and balancing legacy analysis with modern architecture. This Senior Full Stack Engineer values clean code, careful verification, collaborative delivery, and measurable production readiness.
We look forward to reviewing your application!
About Crossfire Consulting
Sourced by ZipRecruiter
Crossfire Consulting is a premier Information Technology (IT) consulting firm based in Yorktown Heights, New York, United States. Founded in 2001, the company's primary services involve providing technology solutions to businesses of all sizes across various industries, aiding them in harnessing the power of IT to achieve their business objectives. Crossfire Consulting specializes in application development, project management, business analysis, quality assurance, and other IT-related services. Their mission is directed towards delivering quality and cost-effective solutions that improve their clients' efficiencies, competitive advantage, and return on investment.
Industry
It services
Company size
51 - 200 Employees
Headquarters location
Yorktown Heights, NY, US
Year founded
2000