Hummingbird is a remote-first, fully distributed team united by the shared mission of helping fight financial crime. Since our launch in 2017, we ve helped major financial institutions and tech-savvy trailblazers alike (e.g. Stripe, Affirm, Evolve Bank etc.) orchestrate their compliance programs through our thoughtfully designed, intuitive SaaS product. We believe finding and stopping financial crime is a problem rooted in code, language and design, so we built the product that the heroes doing this work deserve.

We are customer-obsessed, and we love building and shipping great products. We set a high bar, challenge our assumptions, seek diverse opinions, and support each other to do our best work.

We do our best to write inclusive, descriptive and accurate job descriptions, but we re not always perfect. If you re interested in the role, we d love to hear from you even if you don t feel like you meet everything we re looking for. We re always iterating and improving, and it s possible that your experience is even more impactful than we could have imagined.

About the role

At Hummingbird, we re building better software to fight financial crime-and our engineering team makes that mission possible. As a Senior Software Engineer on the Cortex Team, you ll play a key role in driving AI at Hummingbird. You ll design and deliver customer-facing AI features that make complex work more intuitive and efficient, and iterate on existing features, like our context-aware AI Assistant and Review Agent.

In this role, you ll collaborate closely with Product, Design, and other engineers to bring ideas to life-from prototyping to production. You ll balance thoughtful model and tool selection with sound engineering principles, ensuring our systems are scalable, secure, and auditable. The projects you ll take on are often ambitious and open-ended, and you ll have the trust and autonomy to drive them from concept to completion.

We re looking for someone who s curious, collaborative,



and motivated by impact-someone who thrives in the messy middle of hard problems and helps bring clarity and direction to the team. If you re excited to use AI and data to make the world s financial systems safer and more transparent, we d love to meet you.

What youll do:

- Build AI features end-to-end. You ll design, implement, and ship features that bring great user experiences to life -with a strong focus on measurement, observability, and real-world performance.
- Scale for impact. You ll architect and deliver systems that handle high data volumes and complex workflows with reliability and speed, ensuring our AI features are as resilient and efficient as they are powerful.
- Enhance trust and transparency. You ll improve grounding quality with permission-safe retrieval, citations, and evaluations that make AI outputs auditable and dependable.
- Optimize for experience. You ll drive latency and cost improvements where they matter most-creating fast, seamless interactions for our users.
- Shape the product and strategy. You ll collaborate closely with Product and Design from discovery through iteration, helping define what AI can do for our customers. Excellent ideas come from everywhere, and your voice will help shape where we go next.

What were looking for:

- Experience that matters. You ve shipped 0-1 products to real users (ideally AI products!) and are excited to keep pushing the boundaries of what s possible.
- Safety first. You care deeply about quality, testing,



and security-because trust and reliability are non-negotiable foundations of scalable systems.
- Curiosity and creativity. You love learning new technologies, exploring unfamiliar domains, and turning complex ideas into elegant, understandable solutions.
- Purpose-driven builder. You want to use your technical skills to create something meaningful-AI that helps make the world s financial systems safer and more transparent.
- Strong engineering fundamentals. You bring solid backend experience, data fluency, and operational maturity to every project.
- Iterative mindset. You enjoy refining ideas, incorporating feedback, and improving through collaboration.
- Product intuition and communication. You think beyond code, partnering effectively with Product and Design to build features that delight and empower users.
- Bonus points for: Experience with OpenSearch or other vector databases, Snowflake, evaluation frameworks like Langfuse, or familiarity with fintech and compliance domains.

Technologies we use and teach:

- AWS, Azure, PostgreSQL, Redis
- Terraform, CircleCI, Nix, Docker
- Ruby/Rails, Python
- OpenAI
- React, JavaScript, TypeScript, GraphQL, d3

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please dont hesitate to contact us to request accommodation.

Disclaimer: This job posting & Location has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

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