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Frontend Developer Startup Jobs in Massachusetts

UI Engineer

Boston, MA · On-site

$113K - $151K/yr

In this role, you will be instrumental in establishing the frontend architecture that powers our ... Growth Opportunities: As a rapidly growing startup, we offer significant opportunities for ...

New

UI Engineer

Boston, MA · Hybrid

$113K - $151K/yr

In this role, you will be instrumental in establishing the frontend architecture that powers our ... Growth Opportunities: As a rapidly growing startup, we offer significant opportunities for ...

New

... AI startup. Our platform enables thousands of AI Agents to "think" and cooperate for hours to ... You demonstrate strong technical expertise across the full stack: frontend, backend, infrastructure ...

Principal Software Engineer

Boston, MA · On-site +1

$145K - $175K/yr

Design, build, and maintain scalable, secure systems across front-end, back-end, and data layers ... Startup or high-growth experience Who You Are Curious, proactive, and collaborative. You take ...

Senior Software Engineer, All Teams

Cambridge, MA · On-site

$135K - $177K/yr

Compa is a venture-backed AI startup revolutionizing the future of compensation. In this role, the ... either frontend or backend • Proven ability to work autonomously and follow through on ...

... AI startup. Our platform enables thousands of AI Agents to "think" and cooperate for hours to ... You demonstrate strong technical expertise across the full stack: frontend, backend, infrastructure ...

You will own features end-to-end, from frontend interfaces used by customers and internal teams to ... Contribute to testing infrastructure, CI/CD pipelines, and developer tooling that help the team ...

Senior Software Engineer

Charlestown, MA

$133K - $175K/yr

You will own features end-to-end, from frontend interfaces used by customers and internal teams to ... Contribute to testing infrastructure, CI/CD pipelines, and developer tooling that help the team ...

Senior Software Engineer

Boston, MA · On-site

$140K - $155K/yr

You will own features end-to-end, from frontend interfaces used by customers and internal teams to ... Contribute to testing infrastructure, CI/CD pipelines, and developer tooling that help the team ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

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Frontend Developer Startup information

What are the key skills and qualifications needed to thrive as a Frontend Developer at a startup, and why are they important?

To thrive as a Frontend Developer at a startup, you need strong proficiency in HTML, CSS, JavaScript, and modern frameworks like React or Vue, often supported by a degree in computer science or equivalent experience. Familiarity with version control systems (e.g., Git), build tools, and cloud deployment platforms is typically expected. Adaptability, creativity, and effective communication help you collaborate in fast-paced, cross-functional startup environments. These skills and qualities are crucial for rapidly delivering user-friendly, scalable solutions that drive business growth in a competitive market.

What are some unique challenges a Frontend Developer may face when working at a startup compared to a larger company?

Frontend Developers at startups often encounter fast-paced environments where priorities can shift rapidly. You may be responsible for a broad range of tasks, from designing UI components to optimizing performance, sometimes with limited resources or guidance. Collaboration with cross-functional teams—like backend developers, product managers, and designers—is usually close-knit and informal, offering opportunities to make a significant impact but also requiring adaptability and strong communication skills. This setting encourages innovation and rapid learning, but it can be challenging to balance multiple responsibilities and tight deadlines.

What are Frontend Developers at startups?

Frontend Developers at startups are responsible for building and maintaining the user-facing parts of web or mobile applications. They use technologies like HTML, CSS, JavaScript, and various frameworks (such as React or Vue) to create interactive and visually appealing interfaces. At startups, frontend developers often work closely with designers, backend developers, and product managers, and may take on a wider range of responsibilities due to smaller team sizes. This role requires adaptability, creative problem-solving, and a strong understanding of user experience. The fast-paced startup environment usually means frequent changes and rapid iteration.

What is the difference between Frontend Developer Startup vs Frontend Developer Corporate?

AspectFrontend Developer StartupFrontend Developer Corporate
CredentialsTypically requires a portfolio and coding skills, often no formal certification neededOften prefers or requires a degree in Computer Science or related field
Work EnvironmentFast-paced, flexible, small teams, dynamic projectsStructured, larger teams, established processes, formal hierarchy
Employer & IndustryStartups in tech, e-commerce, SaaSLarge corporations, tech firms, finance, healthcare
Search & Comparison IntentJob seekers exploring startup roles, flexible workCandidates seeking stability, structured career paths

In summary, Frontend Developer Startup roles are characterized by a dynamic environment with a focus on versatility and rapid development, often valuing practical skills over formal credentials. In contrast, Frontend Developer Corporate positions tend to emphasize formal education, structured processes, and stability within established organizations.

What are the most commonly searched types of Frontend Developer Startup jobs in Massachusetts? The most popular types of Frontend Developer Startup jobs in Massachusetts are:
What cities in Massachusetts are hiring for Frontend Developer Startup jobs? Cities in Massachusetts with the most Frontend Developer Startup job openings:
UI Engineer

$113K - $151K/yr

Full-time

Posted 2 days ago


Job description

UI Engineer
Boston/NYC
OnCorps AI is the leading enterprise Agentic AI solution for middle and back-office automation. The company delivers production-ready AI agents that automate reconciliation, exception resolution, and oversight workflows for the world's largest asset managers, fund administrators and managed service providers. OnCorps' agentic AI architecture enables fully autonomous processing of complex middle and back-office workflows while maintaining the transparency, control, and auditability required by global financial institutions. Clients rely on OnCorps to deliver measurable operational efficiency and accuracy improvements across mission critical processes.
We are seeking a seasoned UI Engineer to bridge the gap between design and engineering. In this role, you will be instrumental in establishing the frontend architecture that powers our applications. You will work closely with the OnCorps design team, bringing their vision to life while providing the technical expertise necessary to scale our design system. Our environment values adaptability and rapid iteration, requiring a focus on creating highly modular, interchangeable UI components.
Key Responsibilities
  • Architect, develop, and maintain highly responsive, accessible, and scalable user interfaces using modern web technologies.
  • Partner directly with the OnCorps design team to evolve and govern our design system establishing best practices for component architecture and interaction design.
  • Collaborate with backend engineers to integrate frontend applications with robust middleware and backend APIs, ensuring smooth data handling, state management, and application performance.
  • Operate with a framework-agnostic mindset, applying deep expertise in core web fundamentals to build applications primarily utilizing React or Angular.
  • Help drive frontend innovation by exploring and adopting cutting-edge interaction models as we define our future agent framework.

What We're Looking For
  • 5+ years of professional experience in frontend development, UI engineering, or a related field.
  • Strong proficiency in JavaScript/TypeScript, HTML5, and modern CSS/styling methodologies.
  • Deep understanding of modern, component-driven frontend frameworks such as React or Angular, with the flexibility to adapt to the best tool for the job.
  • Proven track record of building, documenting, and maintaining robust design systems using Storybook.js or similar tools.
  • Solid experience working with middleware, RESTful/GraphQL APIs, and state management.
  • A product-focused mindset with a strong appreciation for UX/UI design principles.
  • A passion for staying ahead of the curve in frontend technology and how AI is shaping the future of user interfaces.
  • Prior exposure to middle- and/or back-office operations within the financial industry or fund administration is a plus.

Why You Should Join Us
  • Innovative Environment: Work with cutting-edge AI and machine learning technologies in a company that is at the forefront of financial services innovation
  • Growth Opportunities: As a rapidly growing startup, we offer significant opportunities for professional development and career advancement
  • Collaborative Culture: Be part of a collaborative and inclusive team where your ideas are valued, and your contributions make a real impact
  • Work-Life Balance: Enjoy the flexibility of a hybrid working environment, allowing you to balance your professional and personal life effectively
  • Competitive Compensation: We offer a competitive salary and a comprehensive benefits package

Apply today and be a part of the future of financial services technology!
OnCorps LLC is an equal opportunity employer committed to diversity and inclusion. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, pregnancy, age, marital status, veteran status, or disability status. We provide reasonable accommodations for persons with disabilities. Applicants with equal employment opportunity questions should contact OnCorps at hr@oncorps.io or (617) 286-4448. Retaliation against applicants raising EEO issues is prohibited.