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Open nowPosted 93 days ago

Senior Software Engineer for AI

Lumin Digital9 open roles

Pay
$170,000 – $190,000 a year
Where
Remote - United States
Work mode
Remote
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Your applicationOpen nowSenior Software Engineer for AILumin Digital · Remote - United States

  1. YouYes, apply to this one.

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The clock on this job

Early applications get read.

11.8% of postings close within 7 days. Measured by our own scanner across the market. Lumin Digital postings stay open a median of 41 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.8%7 days
  4. 18.6%14 days
  5. 35.6%30 days
  6. 45.1%60 days
This job: posted 93 days ago

Lumin Digital median: 41 days open

The posting

We are looking for a Senior Software Engineer for AI to join our engineering team. In this role, you will design, build, and ship AI-powered features that directly impact our platform and our clients' members. You'll collaborate closely with product, engineering, security, and data teams to integrate large language models and other AI/ML capabilities into Lumin's core products and developer tooling.

Essential Functions and Responsibilities:

- Design and build AI-powered features across Lumin's digital banking platform, including natural language interfaces, intelligent assistants, and automated workflows

- Integrate LLMs and AI APIs (Anthropic Claude, OpenAI, etc.) into production systems with robust prompt engineering, output validation, and safety guardrails

- Evaluate AI outputs critically, ensuring accuracy, reliability, and compliance with financial services regulations

- Collaborate cross-functionally with product managers, designers, QE engineers, and other engineering teams to deliver end-to-end AI features

- Contribute to Lumin's internal AI knowledge base, documenting patterns, best practices, and learnings for the broader engineering organization

- Champion security and compliance in AI feature development, with awareness of fintech regulatory requirements (SOC 2, data privacy, etc.)

- Conduct and participate in code reviews, raising the technical bar for AI-related work across the organization

- Evaluate and recommend new AI tools and frameworks as the ecosystem evolves, helping Lumin stay at the forefront of applied AI in financial services

Position Specifications

Education:

- Bachelor's degree in Computer Science or 5 years equivalent experience

Experience:

- 5+ years of professional software engineering experience

- 1–2 years of hands-on experience with AI/ML integration or LLM-based product development

- Proficiency with LLM APIs such as Anthropic Claude or OpenAI, including prompt engineering and tool/function calling

- Proficiency in TypeScript/Node.js

- Experience with RESTful APIs, microservices architecture, and cloud infrastructure (AWS preferred)

- Demonstrated ability to critically evaluate AI-generated outputs — knowing when to trust, verify, and push back

- Strong written and verbal communication skills; ability to explain complex AI concepts to non-technical stakeholders

Travel:

- Minimal, generally 12 days or less per year, ~2X team get togethers a year

Benefits include: Medical, dental, and vision insurance; 401(k) with company match; flexible PTO plus 12 paid holidays; paid sick leave; paid parental and family leave; lifestyle spending account; tuition reimbursement; and cell phone stipend. Additional details provided during the interview process.

LIFE AT LUMIN DIGITAL

Lumin Digital is a trailblazer in digital banking solutions, driven by a unique approach to technology, service, and people. We empower credit unions and banks by creating cutting-edge digital experiences that continuously serve, engage, and grow their membership base — and as a 100% cloud-native company, we're purpose-built to unlock the full advantages of the cloud for financial institutions and their users.

At Lumin, we thrive on curiosity and innovation. Our culture is built on trust in our expertise and decisions, respect for diverse perspectives and talents, and boldness in pursuing new ideas. These values shape a workplace where collaboration thrives, ideas flourish, and new possibilities are discovered every day. We encourage our team to explore, experiment, and challenge the status quo — because continuous improvement isn't just a goal, it's how we operate.

LIFE AT LUMIN DIGITAL

Lumin Digital is a trailblazer in digital banking solutions, driven by a unique approach to technology, service, and people. We empower credit unions and banks by creating cutting-edge digital experiences that continuously serve, engage, and grow their membership base — and as a 100% cloud-native company, we're purpose-built to unlock the full advantages of the cloud for financial institutions and their users.

At Lumin, we thrive on curiosity and innovation. Our culture is built on trust in our expertise and decisions, respect for diverse perspectives and talents, and boldness in pursuing new ideas. These values shape a workplace where collaboration thrives, ideas flourish, and new possibilities are discovered every day. We encourage our team to explore, experiment, and challenge the status quo — because continuous improvement isn't just a goal, it's how we operate.

Benefits include: We take care of our people with medical, dental, and vision insurance, a 401(k) with company match, flexible PTO plus 12 paid holidays, paid sick leave, and paid parental and family leave. We also offer a lifestyle spending account, tuition reimbursement, and a cell phone stipend. Additional details are provided during the interview process.

Lumin Digital is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, national origin, disability, protected veteran status, sexual orientation, gender identity, or any other legally protected basis. For more information, visit lumindigital.com http://lumindigital.com.

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