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Senior Full Stack Engineer

The power of prediction starts with Heartex. 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. It's called data labeling, and it’s a process of real people giving meaning to the information they see on the screen. Heartex 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 1000,000 users around the world, alongside a community of thousands of data scientists sharing knowledge and working to advance data-centric AI.  

We are excited to announce that Heartex has recently 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.

Heartex 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.

Label Studio Enterprise is used by some of the most innovative companies in the world to deliver their AI applications, and is powered by Label Studio—the most popular and well-adopted open source labeling platform. Our rapid growth in 2022 will continue in 2023, and we’re excited to keep pace with our users in providing novel business value.

Heartex is looking for a Senior Full Stack Engineer with experience developing and delivering features that wow users and drive impact. This role is responsible for building and improving our labeling products that touch all parts of our system. Our ideal candidate has significant expertise with end-to-end development across the stack and and understanding of web frameworks, APIs, databases, as well as production experience with both Javascript and Python.

You will join a team of accomplished engineers to collaborate to both expand on existing features and deliver novel ones. You will participate in all aspects of the product development lifecycle including understand of and feedback on new features request, breaking down and defining work, prioritization and planning, design and implementation, and review and delivery. To ensure we are building optimal solutions, collaboration with your development team, Product, and other cross-functional stakeholders, will be an expectation and passion.

As a senior IC and technology leader, you will contribute to up leveling our software engineering culture with best practices, agile mindset on ownership and execution, and human-centric empathy and passion. You will advocate for such through all aspects of your work, including the feature development, design and code reviews and direct engagements. You will identify areas of improvement in the code base and contribute to make it better. You will provide leadership and mentorship to teammates, and will drive change by being a champion for the above.

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

What You'll Bring:

  • 5+ years of hands-on experience developing across the technology stack

  • A strong understanding of semantic HTML, CSS, and core JavaScript concepts

  • Professional experience with React web framework. Experience with additional frameworks like Angular is a plus.

  • Experience with Typescript and React state management libraries like Jotai or Redux

  • You have experience designing, implementing, and supporting backend services in Python. Production experience with Django is preferred

  • Passionately detail-oriented, faithfully recreating the spirit of visual designs as code, but also providing expertise and judgment in execution

  • Dedication to automation across the board: testing, coding standards, deployment, configuration management, etc.

  • Understanding of common web security issues, such as XSS, CSRF, SQL Injection, etc.

  • Production experience developing applications that consume REST APIs

  • Experience with relational databases such as PostgreSQL

  • Experience using CI/CD pipelines

  • Experience with Jest, Cypress, Codecept. Experience with Test Driven Development is desirable.

  • Knowledge of ML workflows or experience working on large-scale SaaS applications is HIGHLY desirable

Within 1 month, you'll:

  • Dig into the codebase with hands on feature development and ship to production

  • Observe, participate and contribute in your team’s agile events to iteratively improve their velocity and quality

  • Utilizing your technical and trouble-shooting skills, quickly get to the root cause of unexpected behavior, debug and help resolve complex technical issues

Within 3 months, you'll:

  • Play a collaborative role in driving development of complex features

  • Take ownership of individual contributions to the team as well as features and products you develop

  • Work with engineering leadership to create a front-end technology roadmap

  • Work across the engineering team to improve our velocity and predictability

  • Contribute to our industry leading Open Source products and community (with over 20K+ users)

  • Mentor junior engineers on your team

Within 6 months, you'll:

  • 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, you'll:

  • Have delivered multiple features that impact users across many significant enterprise and SMB customers across the world

  • Have delivered multiple features that impact users across a very diverse OSS ecosystem

  • Have a deep understanding of data labeling and it’s role in the OSS ML ecosystem

  • Written blog posts on the delivering of such and engineering approaches used

  • Helped contribute to a well-honed team, with an health engineering culture of innovation, speed, empathy and fun

It is an exciting time at Heartex, 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. We're 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!

At Heartex

While our community and customers enjoy our products, we understand it is our team who make that possible. That is why we want to support you in doing your best work. To explore more about our team please visit the about our team page.

We hope you are interested in our opportunities and encourage you to apply even if you are not sure you fit all of the requirements. When applying please include: A short document covering of your experience & skills, such as a resume or linkedin profile. If you have a cover letter expanding on your background and why Heartex is of interest to you, even better, though a cover letter is not required & will not impact your application status. When we receive your application, we’ll get back to you about the next steps.

Heartex is an Equal Opportunity Employer. We are committed to building an organization that welcomes diverse backgrounds and lifestyles. Our goal is to create an inclusive work environment that is equitable and where everyone feels they belong. We foster open and transparent communication and a workplace where discrimination and harassment are not tolerated. If you need any accommodations or assistance to make your interviews more accessible please do not hesitate to reach out to us.

We do not discriminate against employees or applicants based on gender identity or expression, sexual orientation, religion, age, race, military/veteran status, citizenship, pregnancy status, or any other differences.

At Heartex 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. For US based candidates in Colorado and most US remote metro areas our base cash compensation for this role is targeted at $110,000 to $175,000 USD. For candidates in San Francisco and New York metro areas the base cash compensation range is $130,000 to $190,000 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. 

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