Senior Platform Software Engineer (AI Specialist)

Two Six Technologies; Arlington (VA); Hybrid; USD 150,000 - 210,000; Full time

Job summary

Two Six Technologies is seeking a Senior Platform Software Engineer (AI Specialist) to own the internal AI orchestration ecosystem and platform infrastructure. You will design, deploy, and maintain shared services enabling full-stack feature developers to integrate agentic AI capabilities seamlessly.

You will collaborate with the Platform Team to build scalable tools, libraries, and guardrails, while ensuring secure, auditable, and fast deployment in a hybrid Arlington-based environment.

Qualifications

• Experience building and deploying AI agent frameworks or middleware.
• Full-stack experience across frontend, API, and relational databases.
• Infrastructure as Code, container orchestration, and automated delivery tooling.
• Agile software development with emphasis on lead time and deployment frequency metrics.
• Autonomous ownership and proactive cross-team communication.
• US citizenship and eligibility for Top Secret/SCI clearance.

Responsibilities

• Own AI infrastructure and orchestration for LLM interactions, tool execution, and token management.
• Build self-service tools, libraries, and abstractions to enable feature teams to leverage AI tooling.
• Optimize prompt management, embeddings, and testing patterns to speed up deployment.
• Drive platform architecture with independent hosting, versioning, and safe rollbacks within a monorepo.
• Collaborate in internal guilds and cross-team workshops, providing architectural guidance across UI, API, and data models.

Skills

AI orchestration

Full-stack engineering

IaC & automation

Agile experience

Autonomous & collaborative

Security clearance eligibility

Tools

LangGraph/LangChain

Job description

Senior Platform Software Engineer (AI Specialist)

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

About the Role

We are seeking an experienced Senior Platform Software Engineer (AI Specialist) to join our core Platform Team. Our platform functions as a curated, self-service product designed to accelerate delivery and reduce cognitive load for our Stream-Aligned feature teams.

In this role, you will be the primary architect and technical owner of our internal AI orchestration ecosystem. You will not build isolated features; instead, you will design, deploy, and maintain the underlying infrastructure, developer tools, and shared services that enable full-stack feature developers to seamlessly integrate agentic AI capability into their codebases.

This is a full-time, hybrid position that requires work at our Arlington office three days per week. Applicants must be U.S. citizens and have the ability to obtain and maintain up to a Top Secret/SCI security clearance.

What You Will Do

• Own AI Infrastructure & Orchestration: Establish, scale, and maintain a robust internal orchestrator layer to manage LLM interactions, tool execution loops, context windows, and token allocation efficiently.
• Build Self-Service Tools & Libraries: Design and package shared utilities, client libraries, and standardized abstractions (such as managed agentic skills and database migration patterns) so feature teams can independently leverage AI tools.
• Optimize for Fast Flow: Partner with Stream-Aligned developers to evaluate, select, and optimize prompt engineering guardrails, embedding stores, and testing patterns, ensuring automated pipelines protect flow and speed up deployment frequency.
• Drive Platform Architecture: Ensure platform components are hosted independently, version-controlled, and seamlessly importable, allowing for safe rollbacks and clean operational boundaries within a monorepo structure.
• Collaborate and Upskill: Participate in internal guilds and cross-team workshops, acting as a technical consultant to ensure architectural decisions across the UI, API, and data model layers remain fluid and stable.

What We Are Looking For

• AI Orchestration Focus: Proven engineering experience building and deploying AI agent frameworks, orchestrators, or middleware. Strong familiarity with agentic orchestration frameworks such as LangGraph/LangChain and/or PydanticAI, along with proficiency in advanced prompt management, token optimization, and managing external skill libraries.
• Full-Stack Application Engineering: Comfortable working across multiple layers of a modern web application stack—including frontend components, API service layers, and relational databases—to ensure friction-free platform adoption.
• Infrastructure as Code & Automation: Proficient with automated delivery tooling, container orchestration, and packaging systems to build “secure by default” execution environments.
• Agile Experience: Proven experience operating effectively within an Agile software development environment, paired with a strong understanding of continuous delivery metrics (such as Lead Time and Deployment Frequency) and a commitment to creating predictable automated testing guardrails over relying on gatekeeping steps.
• Autonomous & Collaborative: Comfortable taking ownership of technical initiatives, prioritizing work independently, and communicating proactively across team boundaries without requiring micromanagement.
• Clearance:Must be US Citizens and have the eligibility to obtain and maintain up to Top Secret/SCI security clearance.

Why This Role is Unique

You will not be stuck building isolated features or manual workarounds. You will have full organizational support to shift architectural foundations left, building a reliable infrastructure ecosystem that transforms our developer experience into a high-trust, fast-flowing environment.

#LI-MS1

#hybrid

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law. For more information review the Two Six Technologies Equal Employment Opportunity and Affidative Action Policy and the EEO Poster .

If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to [e-mail] . Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.

Additionally, please be advised that this business uses E-Verify in its hiring practices.

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in Two Six Technologies’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.