Get the chrome extension Senior Software Engineer
Hummingbird
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.
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 you'll 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. Great ideas come from everywhere, and your voice will help shape where we go next.
What we're 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 don't hesitate to contact us to request accommodation.
Originally posted on Himalayas
Lead Software Engineer
Twin Health
Twin Health
At Twin Health, we empower people to improve and prevent chronic metabolic diseases, like type 2 diabetes and obesity, with a new standard of care. Twin Health is the only company applying AI Digital Twin technology exclusively toward metabolic health.
We start by building a dynamic model of each person’s metabolism — drawing on thousands of data points from CGMs, smartwatches, and meal logs — that maps their personal path to better health. Guided by a dedicated clinical care team, our members have lowered their A1C below the diabetes range, achieved lasting weight loss, and reduced or even eliminated medications, all while living healthier, happier lives.
Working here
Our team at Twin Health is passionate, talented, and united by a shared purpose: to improve the metabolic health and happiness of our members. We believe in empowering every Twin to make a meaningful impact for our members, our clients, and each other, while enjoying a supportive, collaborative work environment.
Twin has been recognized not only for our innovation but also for our culture, including: Innovator of the Year by the Employer Health Innovation Roundtable (EHIR), selected to CB Insights’ Digital Health 150, and named one of Newsweek’s Top Most Loved Workplace® .
With more than $100 million raised in recent funding, including a $53 million Series E round in 2025 led by Maj Invest, and a $50 million investment in 2023 led by Temasek, Twin is scaling rapidly across the U.S. and globally. Backed by leading venture firms like ICONIQ Growth, Sequoia, Sofina, Temasek, and Peak XV, we are building the most impactful digital health company in the world.
Join us as we reinvent the standard of care in metabolic health.
Opportunity
We are seeking a Lead Software Engineer to join our Copilot team and play a key role in shaping the technical direction and execution of our new AI-powered platform. This platform is designed to optimize and enhance the efficiency of our clinical operations teams.
This role offers a compelling opportunity at the intersection of backend engineering, healthcare technology, and system integrations. As a technical leader, you will drive architectural decisions, lead complex initiatives, and influence engineering best practices. You will work closely with AI, mobile, and other engineering teams, as well as clinical operations stakeholders, to streamline workflows and ultimately improve the member experience.
Responsibilities
- Lead the end-to-end delivery of Copilot product capabilities for the care teams, from product discovery and technical design through implementation, launch, measurement, and production operations.
- Partner with Product Managers and clinical or business stakeholders to define priorities, evaluate tradeoffs, and translate customer and business needs into an executable product roadmap.
- Establish, own, and drive measurable product and business outcomes; ensure appropriate instrumentation and use post-launch results to guide iteration.
- Break complex initiatives into clear workstreams, delegate ownership effectively across engineers, manage dependencies, and hold the team accountable for high-quality delivery.
- Lead full-stack technical direction across user experiences, backend services, data flows, and system integrations while remaining hands-on in Python and FastAPI backend development.
- Design, develop, and scale reliable microservices and APIs using Python/FastAPI; contribute to or integrate with Java/Spring Boot services where appropriate.
- Make and document architectural decisions for complex, event-driven, distributed systems, including reliability, scalability, security, and operational tradeoffs.
- Collaborate closely with AI/ML, Data Platform, Infrastructure, mobile, and other engineering teams to deliver cohesive product capabilities and resolve cross-team dependencies.
- Develop and productionize AI-powered capabilities, including evaluation, guardrails, observability, and continuous-improvement workflows.
- Mentor engineers, provide technical direction and review, and improve the engineering practices needed for safe, frequent releases and reliable production operation.
- Take on additional responsibilities as needed.
Qualifications
- 6+ years of professional software engineering experience, including recent hands-on backend or full-stack product development.
- Demonstrated experience leading a significant project or team through end-to-end delivery, including planning work, delegating ownership, coordinating dependencies, and making technical and delivery decisions.
- Demonstrated experience partnering with Product Managers and business stakeholders to shape priorities, make tradeoffs, and own measurable customer or business outcomes.
- Experience personally owning and delivering customer-facing products from discovery or definition through launch, measurement, iteration, and production support.
- Full-stack technical leadership experience, with strong hands-on Python backend expertise and experience building microservices using FastAPI.
- Experience personally designing complex, event-driven systems and distributed architectures, including making documented scalability, reliability, and operational tradeoffs.
- Strong knowledge of API design, authentication and authorization, data modeling, production debugging, and performance optimization.
- Ability to communicate technical decisions, risks, tradeoffs, and progress clearly to engineering, product, clinical, and business audiences.
Preferred Qualifications
- Experience developing and operating AI agents or AI-powered products in production, including evaluation, safety controls, monitoring, and iterative improvement.
- Experience building products in healthcare, regulated environments, or fast-paced growth-stage companies.
Compensation and Benefits
The compensation range for this position is $220,000 - $240,000 annually.
Twin has an ambitious vision to empower people to live healthier and happier lives, and to achieve this purpose, we need the very best people to enhance our cutting-edge technology and medical science, deliver the best possible care, and turn our passion into value for our members, partners and investors. We are committed to delivering an outstanding culture and experience for every Twin employee through a company based on the values of passion, talent, and trust. We offer comprehensive benefits and perks in line with these principles, as well as a high level of flexibility for every Twin
- A competitive compensation package in line with leading technology companies
- A remote and accomplished global team
- Opportunity for equity participation
- Unlimited vacation with manager approval
- 16 weeks of 100% paid parental leave for delivering parents; 8 weeks of 100% paid parental leave for non-delivering parents
- 100% Employer sponsored healthcare, dental, and vision for you, and 80% coverage for your family; Health Savings Account and Flexible Spending Account options
- 401k retirement savings plan
We have been made aware of fraudulent interview requests being sent using the Twin Health's name. All communications will come from official Twin Health channels and a email address. We will never ask you to complete a text interview or request financial details during the interview process.
Originally posted on Himalayas