OPT Full Stack Developer Jobs
Full Stack Developer roles are among the most common OPT-sponsored positions in the U.S., with employers across tech, finance, and healthcare regularly filing H-1B visa and E-3 visa petitions for these roles. Your 12-month OPT window (or 24-month STEM extension) gives you time to secure sponsorship if you target the right companies early.
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Get Access To All JobsCorporate:
Light & Wonder’s corporate team is comprised of incredible talent that works across the enterprise, defying boundaries to provide essential services in an extraordinary manner to ensure the success of the organization and the well-being of employees.
Position Summary
About the Team
We are building a tight-knit, senior engineering group based in Austin, TX, tasked with creating the next generation of enterprise automation at Light & Wonder. Our mission is to design, deliver, and scale production-grade Agentic AI workflows that execute highly complex, meaningful tasks across the business.
We will operate like a high-functioning startup within the enterprise: we favor shipping over process, rigorous evaluation over opinions, and strategic platform investments that make every subsequent deployment faster. We are leaning heavily into the modern Microsoft ecosystem, anchoring our architecture on the newly GA Microsoft Agent Framework (.NET), Azure OpenAI, and an advanced data backend powered by Snowflake, Databricks, and Microsoft Fabric. If you want to build resilient, multi-agent systems at enterprise scale, this is the team.
About the Role
We are looking for highly capable product builders who will own complex agentic workflows from the user interface down to the model execution. You will navigate across a React front-end, a C#/.NET orchestration layer, and various tool integrations to deliver agents that feel like refined, intelligent products.
You will not be confined to a single layer of the stack. You will be responsible for the orchestration logic, multi-agent handoffs, and the rigorous evaluation coverage, ensuring your agents behave predictably in production. We don't expect you to have years of experience with the Microsoft Agent Framework specifically. We do expect broad technical expertise, a deep understanding of modern async patterns, and the ability to ship resilient AI software.
Essential Job Functions
- Deliver production-grade agent workflows end-to-end, spanning conversational UI, orchestration logic, and tool integrations
- Build intuitive, embedded agent interfaces using AG-UI and CopilotKit to deliver a refined product experience
- Implement robust orchestration using Microsoft Agent Framework (.NET), handling tool calling, multi-agent patterns, and human-in-the-loop handoffs
- Integrate with low-code platforms like N8N for workflow edge cases to accelerate delivery without sacrificing reliability
- Develop comprehensive behavioral, regression, and adversarial evaluations for all shipped workflows to guarantee production reliability
- Collaborate with Data Engineering on consumable data surfaces and with Platform Engineering on deployment and observability standards
- Contribute to shared platform primitives, reusable templates, and rigorous code review practices across the team
Required Qualifications
- 3+ years of professional software engineering experience, with meaningful production depth on both front and back ends
- Strong proficiency in C# and .NET for server-side work, including modern .NET (8 / 9 / 10), async patterns, and dependency injection. This is the primary stack and is required, not preferred
- Strong proficiency in TypeScript and React for front-end work
- Experience shipping at least one production system that uses LLMs end-to-end. "Production" means real users, real reliability constraints, and real evals - not a hackathon project or a tutorial follow-along. Multi-step orchestration or agent experience preferred over single-completion-call experience
- Demonstrated ability to learn unfamiliar frameworks quickly and write production-grade code while doing so. We will probe for this in the technical screen
- Strong grasp of API design, auth, async patterns, and the tradeoffs of streaming versus request-response
- Working knowledge of Azure primitives (App Service / AKS / Functions, Key Vault, API Management, Entra ID) and comfort writing IaC (Bicep)
- Experience writing evals for non-deterministic systems: behavioral tests, regression harnesses, human-rated samples
Preferred Qualifications
- Hands-on time with Microsoft Agent Framework, Semantic Kernel, or AutoGen. MAF specifically is recently GA; depth is uncommon and not required
- Experience with .NET Aspire and Azure Functions hosting patterns for agents
- Experience with AG-UI, CopilotKit, or comparable agent/copilot UI frameworks
- Experience with N8N, Make, Zapier, or similar low-code / automation platforms at production scale
- Experience with Foundry Observability and Foundry Evals, including the Azure DevOps Foundry-evals extension for CI/CD
- Prior experience on a platform or developer experience team. You know what reusable looks like
- Exposure to enterprise identity (Entra ID / AAD), data classification, and DLP patterns
- Familiarity with MCP (Model Context Protocol) and A2A (Agent-to-Agent) interoperability patterns
Education
Bachelor's degree in Computer Science or related field, or equivalent professional experience.
Physical Requirements
The physical demands 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. While performing the duties of this job, the employee is regularly required to sit, stand, walk, bend, use hands, operate a computer, and have specific vision abilities to include close and distance vision, and the ability to adjust focus while working with computer and business equipment.
Work Conditions
Light & Wonder and its affiliates (collectively, L&W) are engaged in highly regulated gaming businesses. As a result, certain L&W employees may, among other things, be required to obtain a gaming or other license(s), undergo background investigations or security checks, or meet certain standards dictated by law, regulation or contracts. In order to ensure L&W complies with its regulatory and contractual commitments, as a condition to hiring and continuing to employ its employees, L&W requires all of its employees to meet those requirements that are necessary to fulfill their individual roles. As a prerequisite to employment with L&W (to the extent permitted by law), you shall be asked to consent to L&W conducting a due diligence/background investigation on you.
This job description should not be interpreted as all-inclusive; it is intended to identify major responsibilities and requirements of the job. The employee in this position may be requested to perform other job-related tasks and responsibilities than those stated above.
Light & Wonder is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class. If you’d like more information about your equal employment opportunity rights as an applicant under the law.
Corporate:
Light & Wonder’s corporate team is comprised of incredible talent that works across the enterprise, defying boundaries to provide essential services in an extraordinary manner to ensure the success of the organization and the well-being of employees.
Position Summary
About the Team
We are building a tight-knit, senior engineering group based in Austin, TX, tasked with creating the next generation of enterprise automation at Light & Wonder. Our mission is to design, deliver, and scale production-grade Agentic AI workflows that execute highly complex, meaningful tasks across the business.
We will operate like a high-functioning startup within the enterprise: we favor shipping over process, rigorous evaluation over opinions, and strategic platform investments that make every subsequent deployment faster. We are leaning heavily into the modern Microsoft ecosystem, anchoring our architecture on the newly GA Microsoft Agent Framework (.NET), Azure OpenAI, and an advanced data backend powered by Snowflake, Databricks, and Microsoft Fabric. If you want to build resilient, multi-agent systems at enterprise scale, this is the team.
About the Role
We are looking for highly capable product builders who will own complex agentic workflows from the user interface down to the model execution. You will navigate across a React front-end, a C#/.NET orchestration layer, and various tool integrations to deliver agents that feel like refined, intelligent products.
You will not be confined to a single layer of the stack. You will be responsible for the orchestration logic, multi-agent handoffs, and the rigorous evaluation coverage, ensuring your agents behave predictably in production. We don't expect you to have years of experience with the Microsoft Agent Framework specifically. We do expect broad technical expertise, a deep understanding of modern async patterns, and the ability to ship resilient AI software.
Essential Job Functions
- Deliver production-grade agent workflows end-to-end, spanning conversational UI, orchestration logic, and tool integrations
- Build intuitive, embedded agent interfaces using AG-UI and CopilotKit to deliver a refined product experience
- Implement robust orchestration using Microsoft Agent Framework (.NET), handling tool calling, multi-agent patterns, and human-in-the-loop handoffs
- Integrate with low-code platforms like N8N for workflow edge cases to accelerate delivery without sacrificing reliability
- Develop comprehensive behavioral, regression, and adversarial evaluations for all shipped workflows to guarantee production reliability
- Collaborate with Data Engineering on consumable data surfaces and with Platform Engineering on deployment and observability standards
- Contribute to shared platform primitives, reusable templates, and rigorous code review practices across the team
Required Qualifications
- 3+ years of professional software engineering experience, with meaningful production depth on both front and back ends
- Strong proficiency in C# and .NET for server-side work, including modern .NET (8 / 9 / 10), async patterns, and dependency injection. This is the primary stack and is required, not preferred
- Strong proficiency in TypeScript and React for front-end work
- Experience shipping at least one production system that uses LLMs end-to-end. "Production" means real users, real reliability constraints, and real evals - not a hackathon project or a tutorial follow-along. Multi-step orchestration or agent experience preferred over single-completion-call experience
- Demonstrated ability to learn unfamiliar frameworks quickly and write production-grade code while doing so. We will probe for this in the technical screen
- Strong grasp of API design, auth, async patterns, and the tradeoffs of streaming versus request-response
- Working knowledge of Azure primitives (App Service / AKS / Functions, Key Vault, API Management, Entra ID) and comfort writing IaC (Bicep)
- Experience writing evals for non-deterministic systems: behavioral tests, regression harnesses, human-rated samples
Preferred Qualifications
- Hands-on time with Microsoft Agent Framework, Semantic Kernel, or AutoGen. MAF specifically is recently GA; depth is uncommon and not required
- Experience with .NET Aspire and Azure Functions hosting patterns for agents
- Experience with AG-UI, CopilotKit, or comparable agent/copilot UI frameworks
- Experience with N8N, Make, Zapier, or similar low-code / automation platforms at production scale
- Experience with Foundry Observability and Foundry Evals, including the Azure DevOps Foundry-evals extension for CI/CD
- Prior experience on a platform or developer experience team. You know what reusable looks like
- Exposure to enterprise identity (Entra ID / AAD), data classification, and DLP patterns
- Familiarity with MCP (Model Context Protocol) and A2A (Agent-to-Agent) interoperability patterns
Education
Bachelor's degree in Computer Science or related field, or equivalent professional experience.
Physical Requirements
The physical demands 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. While performing the duties of this job, the employee is regularly required to sit, stand, walk, bend, use hands, operate a computer, and have specific vision abilities to include close and distance vision, and the ability to adjust focus while working with computer and business equipment.
Work Conditions
Light & Wonder and its affiliates (collectively, L&W) are engaged in highly regulated gaming businesses. As a result, certain L&W employees may, among other things, be required to obtain a gaming or other license(s), undergo background investigations or security checks, or meet certain standards dictated by law, regulation or contracts. In order to ensure L&W complies with its regulatory and contractual commitments, as a condition to hiring and continuing to employ its employees, L&W requires all of its employees to meet those requirements that are necessary to fulfill their individual roles. As a prerequisite to employment with L&W (to the extent permitted by law), you shall be asked to consent to L&W conducting a due diligence/background investigation on you.
This job description should not be interpreted as all-inclusive; it is intended to identify major responsibilities and requirements of the job. The employee in this position may be requested to perform other job-related tasks and responsibilities than those stated above.
Light & Wonder is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class. If you’d like more information about your equal employment opportunity rights as an applicant under the law.
See all 2,146+ OPT Full Stack Developer Jobs
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Get Access To All JobsTips for Finding OPT Sponsorship as a Full Stack Developer
Target companies with a STEM OPT extension track record
Companies that have sponsored H-1B visa petitions for Full Stack Developers are far more likely to support your STEM OPT extension. Look for employers with consistent engineering hiring patterns, not one-off sponsorships, to reduce the risk of your extension being denied.
Emphasize both frontend and backend depth in your resume
Employers sponsoring OPT candidates want to see genuine full-stack fluency, not surface-level exposure. Listing specific frameworks you've shipped to production, such as React with Node.js or Django with PostgreSQL, signals you can contribute without a long ramp-up period.
Apply before your OPT clock starts burning
Sponsoring employers need lead time to prepare LCA filings and H-1B petitions. Starting your job search three to four months before your OPT start date gives both you and the employer enough runway to complete the process without timeline pressure.
Ask directly about sponsorship in the recruiter screen
Raise the visa sponsorship question in the first recruiter call, not after a full interview loop. It saves everyone time and signals professionalism. Frame it clearly: ask whether the company sponsors H-1B or E-3 visas for full-stack engineering roles.
Specialize in a high-demand stack to strengthen your case
Generalist full-stack profiles compete with a large pool. Developers with demonstrated expertise in cloud-native architectures, TypeScript, or microservices are easier for employers to justify sponsoring because the skill set is harder to fill domestically.
Keep your I-20 and EAD documentation current and accessible
Employers initiating OPT sponsorship paperwork will ask for your I-20 endorsement, EAD card, and university authorization letters. Having these organized and ready to share immediately prevents delays that can stall an offer or jeopardize your start date.
Full Stack Developer OPT: Frequently Asked Questions
Do Full Stack Developer jobs typically sponsor OPT students?
Yes, Full Stack Developer is one of the most actively sponsored roles for OPT students in the U.S. Most medium-to-large tech companies, as well as many startups with engineering teams, regularly support OPT and STEM OPT extensions for full-stack roles. Migrate Mate filters job listings specifically for employers open to sponsoring OPT candidates, so you can focus your search on companies that are already willing.
Does my Full Stack Developer role qualify for the 24-month STEM OPT extension?
It depends on your degree field, not just your job title. If your degree is in computer science, software engineering, information systems, or another STEM-designated field, and your Full Stack Developer role involves directly applying that knowledge, you likely qualify for the 24-month extension. Your DSO must verify the role meets the STEM criteria and update your I-20 accordingly before the extension is filed.
Can I switch Full Stack Developer jobs while on OPT?
Yes, you can change employers while on OPT, but your new job must still be directly related to your degree field and must be reported to your DSO within 10 days. For STEM OPT holders, switching employers also requires your new employer to sign a formal training plan and register with E-Verify before you can begin work. Gaps between jobs count against your unemployment limit, so plan transitions carefully.
What is the H-1B cap lottery and how does it affect my OPT as a Full Stack Developer?
The H-1B lottery is an annual random selection process for the 85,000 H-1B visas available each year. Registration opens in March, and USCIS selects petitions by lottery in late March or early April for an October 1 start date. If you're on OPT and not selected, your employer can re-enter you in subsequent lotteries while your STEM OPT extension remains valid, giving you up to three lottery cycles to secure selection.
How many days can I go without a job while on OPT as a Full Stack Developer?
Standard OPT allows a maximum of 90 days of unemployment. If you're on the 24-month STEM OPT extension, that limit increases to 150 days in total across both periods combined, not an additional 150 days. Any day you are not employed in a role related to your degree counts toward that limit. Losing a Full Stack Developer job mid-OPT makes finding a new qualifying role quickly a real priority.