Job Description
[ABOUT ISTARI DIGITAL]
Istari is a digital engineering software company enabling our customers to turn the physical world into the digital to accomplish their specific mission or business objectives.
Istari was founded with the vision of making open, scalable digital engineering ecosystems a reality – where new technologies and systems are created digitally, free from the real-world constraints of costs and schedules. We are creating the world’s best engineering model sharing platform, allowing our customers to simply and securely integrate their models across different engineering disciplines, organizations, and security levels.
At Istari, we are passionate about our mission of creating the world’s first open and scalable industrial metaverse. Whether our customers are designing prototypes, performing virtual testing, or training AI and autonomy for complex systems, we know that going digital will save them time, resources, and reduce their environmental impact.
While we are a distributed team with most team-members working remotely, we place an emphasis on staying connected and collaborative, prioritizing in-person opportunities to build trust as a team. At Istari, we still believe that trust is best built in-person. To do this, we have an engineering headquarters in Cambridge, MA for focused technical development and several times per year we gather for an off-site that allows us to develop our professional skills and our team relationships.
[VALUES]
At Istari, we live by our values, which include:
- Focus is rewarded. Finish is remembered.
- Facts are friendly. Even when they are not fun.
- Fellowship is fundamental. Make others successful.
Equal Opportunity
Istari is an Equal Opportunity/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.
We’re looking for a full-stack Senior Software Engineer to join our team building modern web applications, developer tools, and AI-powered workflows for aerospace and defense customers.
This team sits closest to the user. We build the interfaces, APIs, and intelligent tooling that engineers rely on to do mission-critical work. You’ll work across the stack — from React and TypeScript on the frontend to Python and Go services on the backend — delivering secure, high-performance systems in complex environments.
This role is ideal for engineers who care deeply about understanding customer needs, enjoy working directly with product and design, and want to build tools for sophisticated technical users.
Key Responsibilities
- Build Across the Stack: Develop modern frontend applications using TypeScript and React. Design and implement backend services in Python and Go. Build clean, well-tested APIs that power complex engineering workflows. Contribute to system architecture with an eye toward scalability, reliability, and security.
- Solve Real Customer Problems: Engage directly with product managers, designers, and occasionally customers to understand real-world workflows. Translate ambiguous user needs into thoughtful technical solutions. Iterate quickly, validate assumptions, and refine features based on feedback.
- Improve Developer & AI Tooling: Build internal and customer-facing developer tools, SDKs, and workflow automation systems. Integrate AI capabilities (LLMs, retrieval systems, copilots) into product experiences. Help improve CI/CD, local development environments, and engineering productivity.
- Operate in Mission-Critical Environments: Build systems that function reliably in secure, regulated, or air-gapped settings. Balance speed with correctness, performance, and long-term maintainability.
Required Qualifications
- 4+ years of professional software engineering experience.
- Strong experience with JavaScript/TypeScript and modern frontend frameworks (e.g., React).
- Experience building backend systems in Python, Go, or similar languages.
- Demonstrated ability to ship full-stack features end-to-end.
- Product-minded: you seek to understand the “why,” not just implement tickets.
- Comfortable working in ambiguity and collaborating closely with cross-functional teams.
- Must be a US citizen living within the United States.
Preferred Qualifications
- Experience building developer tools or technical user-facing products.
- Experience integrating AI into software products (LLMs, embeddings, AI-assisted workflows).
- Background in aerospace, defense, digital engineering, or other regulated domains.
- Experience with secure or air-gapped environments.
$160,000 - $200,000 a year
BENEFITS
We offer highly competitive benefits, including:
Health and Family
- Medical/Dental/Vision
- Employee Premiums are 100% Company Paid
- Life Insurance
- Flexible Work Hours
- Unlimited Paid Time Off (PTO) with federal government holidays
Financial
- Competitive Compensation
- 401k
- Company Stock Options
- Home Office Setup Budget
Learning
- Reimbursement for approved trainings and subscriptions
- Conferences (travel, lodging, and fees)
Note - some benefits are not available to interns or contractors.
Thank you for your interest in Istari. Expect to hear back from us soon with next steps.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
