Justworks

Justworks makes it easier to start, run, and grow a business.

1001-5000 employees
Founded 2012
$16.8M series unknown
Internet
Private Company

Open Positions9

Remote UKFull-TimeHR TechnologyPosted
  • 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.
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About Justworks

Justworks is on a mission to simplify the complexities of running a business, allowing entrepreneurs to focus on what truly matters: their growth and their teams. Founded in 2012, Justworks provides a comprehensive cloud-based platform that streamlines payroll, benefits, human resources, and compliance. You gain access to corporate-level benefits, automated payroll, and expert support, ensuring your team feels secure and valued. Justworks supports businesses of all sizes, from small startups to organizations with up to 5,000 employees.

How We Work

You will find a welcoming and casual environment at Justworks, prioritizing collaboration and shared goals. The company fosters a culture of knowledge sharing, openness, and customer-centricity. Justworks values Camaraderie, Openness, Grit, Integrity, and Simplicity (COGIS), integrating these principles into daily work and hiring practices. They encourage honest feedback and empower employees to take initiative. You'll find a supportive, entrepreneurial atmosphere where people work together with a true sense of purpose.

Engineering at Justworks

Justworks builds technology that levels the playing field for small businesses. Their engineering team focuses on creating a simple, user-friendly product that makes people's lives easier in concrete ways. They are constantly iterating and are data-driven in their approach. Engineers are encouraged to take a significant role in projects, from roadmapping to implementation. The team embraces diversity in backgrounds and experiences, with some engineers transitioning from other careers. Justworks focuses on continuous growth and offers unique career journey frameworks. They also leverage AI to improve operations and processes.

Why Join Us

  • Shape a product that directly helps small businesses thrive by simplifying complex HR, payroll, and benefits.
  • Grow your career in a company that invests in personal and professional development and offers equity ownership.
  • Work in a transparent and collaborative environment where your voice is heard and initiative is rewarded.
  • Be part of a team united by strong values (Camaraderie, Openness, Grit, Integrity, Simplicity) that guide daily interactions and decisions.
  • Contribute to a diverse and inclusive workplace that prioritizes the well-being and growth of all employees.

Benefits & Perks

  • Access to high-quality medical, dental, and vision insurance, with plans often covering 100% of individual premiums and 90%+ of family premiums.
  • Wellness perks including access to Talkspace, Peloton, Kindbody, and a complimentary Headspace membership.
  • Generous paid time off, including flexible PTO, 10 public holidays, 7 sick days, and 5 volunteer days.
  • Opportunity for sabbatical leave of up to six weeks after five years of continuous employment.
  • Financial benefits like HSA/FSA accounts, 401(k) retirement plans through Slavic401k, and commuter benefits.
  • Support for families with generous parental leave and family medical leave.
  • 24/7 human support for benefits, payroll, HR, and compliance inquiries.

Tech Stack

frameworkwidgetsservermapping

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