The power of prediction starts with HumanSignal. We build software that helps people do what only they can do – give meaning

Data fills our modern world. It flows prolifically inside organizations, customer interactions, through product usage, environmental research, healthcare imaging, and beyond. What if we could use any of that historical data to predict the future? The fact is, in most cases we can make predictions through Machine Learning and AI, but to do so in a meaningful and impactful way, historical data needs to be accurate, comprehensive, and absent of bias.

In order to make the best predictions, we believe internal teams with domain expertise should be responsible for annotating and curating data. Its called data labeling, and it’s a process of real people giving meaning to the information they see on the screen. HumanSignal was founded to take data labeling to the next level.

We believe that data labeling is a team sport. Data scientists, subject matter experts, engineers, operations, and annotators must work collaboratively to ensure quality results and an efficient process. That’s why we created Label Studio, which has quickly become the most popular open source data labeling platform with a 250K+ users around the world and millions of labeled samples, alongside a community of thousands of data scientists sharing knowledge and working to advance data-centric AI.

In late spring 2022, HumanSignal raised $25 million in Series A funding, bringing our total funds raised to $30 million from notable investment partners Redpoint Ventures, Unusual Ventures, Bow Capital, Swift Ventures, as well as angel investors.

HumanSignal is a fully distributed organization with people all over the world. We have team members in North America, Europe, and South America across 6 countries.

About the Opportunity:

We’re growing engineering to support delivering novel product work in a data labeling automation platform powered by GenAI and agents. We’re looking for the next group of passionate and talented engineers who desire to join and grow alongside us in our mission to build and deliver software that democratizes everyones ability to harness these technologies.

HumanSignal is looking for a Front-End Engineer who is comfortable working across the stack when necessary. You will be a key part of our efforts to ensure our platform is user-friendly, reliable, and scalable. You will collaborate with backend engineers, product managers, and designers to create intuitive and responsive web applications that meet the needs of our growing user base. This role is ideal for engineers who enjoy creating intuitive and impactful user interfaces and are passionate about building software that democratizes data labeling through AI and automation.

Responsibilities:

Develop and maintain front-end components for our data labeling platform, focusing on performance, scalability, and user experience.
Work closely with product, design, and other engineers to translate requirements and mockups into intuitive user interfaces.
Participate in code reviews, architecture discussions, and the entire development process, from ideation to production.
Establish standards for front-end development, including code style, maintainability, and best practices.
Identify areas for improvement in the codebase and drive changes that enhance the overall quality of the product.
Mentor and provide guidance to junior engineers on best practices and coding standards.

If this opportunity sounds intriguing and youre drawn to engineering challenges, have a strong desire to make a big impact as part of a small, agile team, in an exciting space, wed love to talk to you.

What Youll Bring:

Extensive experience developing front-end applications with modern JavaScript frameworks (React, Angular, Vue.js).
Strong knowledge of HTML, CSS, and JavaScript (ES6+), with a focus on cross-browser compatibility, accessibility principles, and delivering high-quality, maintainable code.
Familiarity with state management libraries (Redux, Vuex) and front-end build tools (Webpack, Vite).
Comfort working with backend technologies (e.g., REST APIs, Django GraphQL) and willingness to dive into backend code when needed.
A keen eye for design and UX, with a drive to build intuitive and visually appealing interfaces.
High user empathy and a focus on delivering value through thoughtful, well-crafted user experiences.
A passion and aptitude for impactful communication at a Sr+ SWE IC level, using TDDs, code reviews, presentation, and thoughtful feedback.
BSCS, related degree or equivalent practical experience

Languages, Frameworks, and Technologies We Use:

Python, django, JS, Typescript, React, OpenAI API, Spark, BigQuery, Kafka, Jest, Cypress, AWS, kubernetes, Postgres & Redis

Within 1 week, youll:

Setup your development environment, and enhance the self-serve documentation and workflows to ensure it’s pristine and effective.
Meet your buddy, team, key stakeholders and the founders
Participate in team meetings and get close to the sprint in progress

Within 1 month, youll:

Make multiple production contributions, across small features, enhancements and bug fixes as you ramp up on codebase, systems, workflows, and product.
Give feedback in retrospectives, bringing in your experiences and a desire to build a world class engineering team.
Review multiple pull requests, and leverage your convictions as a software engineer to see design patterns, code style and syntax upheld.
Resolve multiple engineering dependent customer support requests—quickly get to the root cause and resolve complex technical issues.

Within 3 months, youll:

Independently drive and fully own development and delivery of complex features, and present on them in company meetings.
Review PRDs and lead creation or review of TDDs,
Experience and give feedback across a quarterly OKRs cycle, and help the team understand and plan its next quarter commitments.
Continue to engineering team to improve our velocity and predictability
Contribute to our industry leading Open Source products and community (with over 20K+ users)
Mentor and guide junior engineers

Within 6 months, youll:

Take the lead and own major features collaborating with other engineers for successful delivery
Leverage your experience to work closely with Product Management, Engineering and Customer Support staff to identify, document and help resolve technical issues and product feature/functionality gaps
Support and help grow the open source community through your participation in meet-ups, design/code camps and technical speaking engagements
You will play a key role in shipping highly scalable products and the next evolution in labeling software.

In 1 year, youll:

Continue delivering increasingly complex projects
Play an active role in advancing your career to the next level

At HumanSignal we pay based on regional compensation market rate ranges across the globe. We are hiring for this role across North and South America as well as Europe. The base cash compensation range is $140,000 to $200,000 USD. These ranges are provided by market data and are in good faith. The final offer details are determined by several factors including candidate experience, expertise, as well as applicable industry knowledge and may vary from the pay ranges listed above.

It is an exciting time at HumanSignal, we are a growing startup and at this stage we are constantly evolving. While we have put a lot of thought into your first and most important initiatives, it’s only an example and something we will work on together. Were always learning and growing, so like us this role will evolve and expand. We hope that this opportunity sounds exciting to you and that you consider joining us on our journey!