On the Market is a Technical.ly column where we highlight new and noteworthy job openings and the people who are lookin’. Got a submission? Email us and tell us why it belongs in the roundup.

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Small Planet is hiring developers.

Dumbo’s Small Planet has worked with Brooklyn startups like Amplify, mega startups like FanDuel, nonprofits like Planned Parenthood and corporate giants like Disney on developing apps. The firm has more than 30 employees, according to LinkedIn. In April, we featured the company in our 10 Brooklyn designers you should know list.

Butterfly is looking for a marketing director.

The Greenpoint-based app founded by three European ex-pats wants to help companies save money by having people not quit in a rage quite so often. The company announced a $2.4 million raise Monday, led by venture fund Daphni.

TwoSense has an open position for a machine learning engineer.

After completing Entrepreneur’s Roundtable Accelerator this spring, TwoSense is looking to add a member to its small team working on biometric authentication.

Voltaiq is hiring for sales.

This Downtown Brooklyn–based battery startup builds software to make batteries work more efficiently and longer. Voltaiq raised $2 million last year and was included earlier this month on our 10 Brooklyn scientists to know list.

.@Voltaiq is #hiring for a #sales operations associate. Apply for this #job today! Please RT. #Mondaymotivation https://t.co/zPEQs9VJnt

— ACRE (@nycacre) October 17, 2017

Part and Sum is looking for a digital strategist.

Part and Sum is a three-person digital strategy agency that helps brands grow online. It’s based in Industry City.

https://twitter.com/jimbabb/status/920091721014398976