高级软件工程师，应用AI (英国)
Senior Software Engineer, Applied AI (United Kingdom)
## **我们是谁**
在 Justworks，你将享受到一个友好且轻松的环境、完善的福利、健康计划、公司团建活动，以及与初创社区领袖互动和学习的机会。我们努力工作，并重视我们最宝贵的资产——我们的员工。
我们帮助企业在起步阶段取得成功，使他们能够专注于经营业务。我们解决人力资源问题。我们以数据为驱动，不断迭代。如果你希望在一个支持性、创业型的环境中工作，对构建有意义的事物并在此过程中享受乐趣感兴趣，我们期待你的加入。
Justworks 的所有成员都因共同的目标和动机而团结在一起。这些价值观在我们的产品和团队中都有体现。
[我们的价值观](https://www.justworks.com/careers#values)
如果你觉得这符合你，那么你会很快融入这里。
## **你是什么样的人**
你有自我驱动力，喜欢与他人合作消除障碍。你充满好奇心，热爱探索和学习新技术。你具备构建、部署和维护大规模复杂应用的能力。你更关注解决方案和客户体验的影响，而不是特定的工具或框架。
**关于这个职位：**
你将加入一个小型、高度自主的跨职能团队，构建 AI 代理，从根本上改变大规模运营的方式。我们不再为每个工作流程编写定制软件，而是开发一个代理平台，可以读取操作知识，在上下文中进行推理，并端到端地执行任务。这种方法使我们通过知识和推理来扩展复杂性，而不是仅仅依靠代码。
这是一个加入基础团队的机会，目前团队中的工程师还不到五人。这项工作涵盖关键领域，包括基于 LLM 的代理设计、稳健的后端服务架构、工具和集成开发，以及复杂的知识基础设施。
我们正在寻找一位对在产品环境中构建 AI 原生系统的热情强烈的高级软件工程师。理想的候选人能够负责技术栈的大部分内容，能够在模糊和新兴的领域做出务实的技术决策，并持续交付高质量、可投入生产的系统，这些系统每天都被我们的用户依赖。
**职责：**
- 设计、构建并负责代理平台的核心组件，从编排
查看英文原文
## **Who We Are**
At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset - our people.
We’re helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. If you’d like to work in a supportive, entrepreneurial environment, are interested in building something meaningful and having fun while doing it, we’d love to hear from you.
We're united by shared goals and shared motivations at Justworks. These are best summed up in our company values, which are reflected in our product and in our team.
[Our Values](https://www.justworks.com/careers#values)
If this sounds like you, you’ll fit right in.
## **Who You Are**
You are self-driven and like to work with others to remove roadblocks. You are curious and love to explore and learn new technologies. You have demonstrated the ability to build, deploy, and maintain large-scale, complex applications. You care more about solutions and impacting the customer experience than using a particular tool or framework.
**About the role:**
You will join a small, highly autonomous cross-functional team to build AI agents that fundamentally transform how operations work at scale. Instead of writing bespoke software for every workflow, we are developing an agent platform that can read operational knowledge, reason about it in context, and execute tasks end-to-end. This approach allows us to scale complexity through knowledge and reasoning, rather than simply through code.
This is an opportunity to join a foundational team, which currently consists of fewer than five engineers. The work spans critical areas including LLM-powered agent design, robust backend service architecture, tool and integration development, and sophisticated knowledge infrastructure.
We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments of the technology stack, make pragmatic technical decisions in ambiguous and emerging territory, and consistently ship high-quality, production-ready systems that our users rely on every day.
**Responsibilities:**
- Design, build, and own core components of the agent platform, from the orchestration layer to the tool integrations connecting it to internal systems.
- Build and evolve the capabilities layer: APIs, data access patterns, and service integrations for agents to execute operational workflows.
- Architect the knowledge and memory infrastructure, allowing agents to retrieve the data and act across our systems.
- Design and implement the trust and safety framework, including audit trails, human-in-the-loop controls, and guardrails for safe and auditable AI-driven operations.
- Contribute to agent evaluation and testing infrastructure, defining how we measure accuracy, reliability, and regression across agent behaviors.
- Partner directly with Operations to understand workflows, identify automation opportunities, and translate process knowledge into agent capabilities.
- Mentor other engineers on the team as it grows.
**About the candidate**
- **You are comfortable in a fast-paced, early-stage environment.** You demonstrate a "scrappy" and resourceful approach, proactively identifying solutions and unblocking yourself without needing a fully defined path.
- **You are pragmatic and balance quality with speed.** You understand when to optimize for long-term durability and when to iterate quickly. You prioritize pragmatism over being overly precious about code, but never compromise on quality in a way that creates future issues.
- **You are product-minded.** You look beyond the immediate task, seeking to understand the "why" behind the build and questioning whether it's the right product solution. You are comfortable contributing product thinking alongside engineering work.
- **You demonstrate a strong ownership mindset.** You are proactive, identify gaps, and drive initiatives to completion without waiting for explicit instructions. When encountering issues or ambiguity, you address them directly.
- **You possess strong backend engineering fundamentals.** You can confidently design, build, and operate production systems.
- **You are curious and eager to develop expertise in AI and LLMs.** While deep research is not required, you are motivated to build practical, real-world products using these tools, specifically focusing on agent systems.
### **Qualifications**
- 5+ years of backend engineering experience building and operating production systems
- Hands-on experience with LLMs and AI agents (orchestration, RAG, tool/function calling, or similar)
- Strong API design and system integration skills
- Product-minded: questions requirements and contributes to product decisions, not just execution
- Proven ownership of complex projects in ambiguous, early-stage environments
### **Technologies Used**
- Golang, Ruby on Rails, Javascript, Java, C#, Python, VueJS, MySQL, Kafka, AWS, Git, Memcache, Redis, ElasticSearch, Docker, Terraform, Kubernetes, CircleCI, DataDog
The base wage range for this position based in The United Kingdom is targeted at 132,000-170,000 GBP per year.
#LI-AD1 #LI-Hybrid #LI-JS1
Actual compensation is based on multiple factors that are unique to each candidate, including and not limited to skill set, level of relevant experience, and specific work location. Salary ranges for positions based in other locations may differ based on the cost of labor in that location.
For more information about Justworks’ Total Reward Philosophy, including all of the perks and benefits we are proud to offer our team members, please visit [Total Rewards @ Justworks](https://www.justworks.com/careers#total-reward-philosophy).
## **Diversity At Justworks**
Justworks is committed to maintaining a workplace where diversity of identity, culture, and life experience is the norm and is celebrated authentically and respected consistently. Diversity in our work, our people, and our product drives creativity and innovation, entrepreneurial leadership and integrity, competitiveness, and collaboration throughout our business and in the market. We depend on our differences to make our team stronger, our workplace more dynamic, and our product accessible to all of our customers.
We’re proud to be an equal opportunity employer open to all qualified applicants regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital or familial status, disability, pregnancy, gender identity or expression, veteran status, genetic information, or any other legally protected status. Justworks is fully dedicated to providing necessary support to candidates with disabilities who may require reasonable accommodations. We also provide reasonable accommodations to employees based on their sincerely held religious beliefs, as well as for other covered reasons consistent with applicable federal, state, and local laws. If you're in need of a reasonable accommodation, please reach out to us at [accommodations@justworks.com](mailto:accommodations@justworks.com). Your comfort and success matter to us, and we're here to ensure an inclusive experience.
[Our DEIB Report](https://www.justworks.com/press/company-news/justworks-impact-report-2024)