C

Contra

Freelance platform with portfolios, projects, payments

Research Scientist - Human Data & Evaluation

Full-Time
$150k - $200k+ Equity
Mid, Senior
Master's
New York, NY, USA
In PersonIn-office five days per week in Williamsburg.
AI & Machine LearningAI Research

About the job

Requirements
  • Three to five or more years of relevant research experience, with a Master’s, PhD, or equivalent industry research depth in HCI, Human-Centered AI, machine learning, design research, or a related field.
  • Strong qualitative and quantitative research skills, with experience in human evaluation, experimentation, data collection, UX/HCI, annotation, or model behavior research.
  • Ability to independently design and execute rigorous research, including deciding what data to collect, why, and how to analyze it.
  • Ability to turn data and observations into new insights, research directions, and actionable recommendations.
  • Comfort analyzing data with Python and/or SQL.
  • Strong written communication and ability to clearly explain methodological tradeoffs and research decisions.
  • Comfort operating independently through ambiguity and balancing research rigor with startup speed and pragmatism.
  • Based in New York City, USA.
  • Work in-office five days per week in Williamsburg.
Responsibilities
  • Translate ambiguous client questions into clear research questions, hypotheses, and study designs.
  • Develop research proposals and methodologies from scratch rather than relying on a predefined approach.
  • Identify promising new research directions and push the team toward ideas not already considered.
  • Help define what Contra Labs should measure, study, and build next.
  • Design human-data collection strategies, evaluation protocols, rubrics, annotation schemes, and experiments.
  • Develop prompt strategies for eliciting, evaluating, and comparing model behavior.
  • Determine appropriate sampling, evaluator selection, calibration, quality-control, and reliability methods.
  • Design methodologies across creative and multimodal domains such as design, image, video, and agentic workflows.
  • Analyze qualitative and quantitative evaluation data.
  • Explain why patterns occur and what they imply, beyond reporting results.
  • Synthesize findings into clear recommendations, research narratives, and new hypotheses.
  • Produce client-ready reports, presentations, benchmarks, and research publications.
  • Independently own research engagements from initial scoping through final delivery.
  • Work closely with project leads, creative experts, research engineers, and data/engineering teams.
  • Maintain research rigor and data quality while operating on fast client timelines.
  • Potentially support multiple concurrent projects at different stages.
  • Conduct research driven by real client problems and constraints.
  • Participate in scoping and proposal development and help establish credibility with sophisticated AI/ML research teams.
  • Collaborate with Strategic Project Leads on client delivery.
Desired Qualifications
  • Familiarity with modern machine learning and generative AI systems.
  • Understanding of RLHF, post-training, preference data, and model evaluation.
  • Experience studying image, video, multimodal, creative, or agentic systems.
  • Experience designing prompts or systematically studying prompting/model behavior.
  • Experience working with large-scale human-data or annotation programs.
  • Experience working directly with AI research or model teams.
  • Strong publication record or other evidence of consistently generating original research ideas.
  • Startup or 0-to-1 experience.
  • Direct client-facing experience is valuable.

About the company

Contra runs a freelancing platform for independent, project-based workers and the clients that hire them. Freelancers build portfolios, manage projects, contracts, and payments in one place, with Contra Pro offering features like customizable portfolios, better search visibility, and analytics for $29/month; freelancers keep 100% of earnings thanks to a commission-free model. For employers, Contra helps post jobs, discover and hire talent, manage engagements, and pay flexible workers, all within a single workflow. Contra differentiates itself by focusing on helping freelancers run their business and grow professionally through business-oriented tools and a strong professional community, and it aims to grow the gig economy by making it easier to find work and get paid.

Company Size

1,001-5,000

Company Stage

Series B

Total Funding

$44.5M

Headquarters

San Francisco, California

Founded

2019

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Simplify Jobs

Simplify's Take

What believers are saying

  • Contra claimed 1.5M+ independent creative experts in August 2026, up from one million.
  • Partner pages in August 2026 show recurring creator-tool demand and structured monetization.
  • The October 2025 financing, totaling at least $45.2 million, supports product and marketing expansion.

What critics are saying

  • Upwork and Fiverr still own freelancer discovery, leaving Contra dependent on outbound demand.
  • Contra's challenge-led monetization commoditizes it as marketing infrastructure, not indispensable hiring software.
  • If partner spend slows after 2026 campaigns, Contra's growth engine loses most distribution.

What makes Contra unique

  • Contra's January 2026 blog positions it as a creator network, not a job board.
  • Contra's partner program runs monthly challenges, generating 600+ participants and 1M+ impressions.
  • Contra Payments and the one-million-plus creator network deepen workflow ownership beyond profiles.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Company Match

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

0%

2 year growth

2%
Las Vegas Alert
Jun 26th, 2026
Renoise and Contra Open $10,500 Creator Challenge for AI-Generated Short Films.

Renoise and Contra Open $10,500 Creator Challenge for AI-Generated Short Films. Renoise and Contra have launched a co-branded short-film challenge, open June 22-30, 2026, with a $10,500 total prize pool. Contra, with over one million creators, hosts, and manages the challenge. Dover, Delaware, United States, 26th Jun 2026 - Renoise and Contra have launched a co-branded short-film challenge, open June 22-30, 2026, with a $10,500 total prize pool. Creators are asked to produce a 15-60 second cinematic video using Renoise, with one rule: the story must end with an unexpected plot twist.Participants sign up on Contra, receive 1,000 free Renoise credits, and submit with the Renoise watermark and #RenoiseChallenge tag. Entries are judged on creative execution, visual quality, and originality. Winners will be announced via Contra's live webinar.Renoise provides AI video generation through text or image prompts, with a Canvas timeline, FacePass character consistency, and batch generation - available on web, desktop, and CLI. Contra, with over one million creators, hosts and manages the challenge. Renoise, an AI video generation platform, has partnered with Contra, a professional creator network platform, to launch a short-film challenge with a $10,500 total prize pool. The competition asks participants to create a cinematic video between 15 and 60 seconds using Renoise, with one narrative rule: the story must conclude with a plot twist the viewer didn't expect. The Contra challenge opens 9:00am on June 22, 2026 at 9:00am PST, and accepts submissions through 11:59pm on June 30, 2026. A panel of judges will evaluate entries on creative execution, visual quality, and originality. Winners will be announced following the close of submissions via Contra's live hosted webinar. Prize breakdown. * 1st Place: $5,000 * 2nd Place: $2,500 * 3rd Place: $1,000 * Community Favorite: $1,000 - determined by engagement and overall impact on the Contra platform * Community Promoter: $1,000 - awarded to the participant who refers the most new entrants that go on to submit a qualifying entry All approved submissions must carry the Renoise watermark and the hashtag #RenoiseChallenge. Participants are required to share their work on Contra and social media X or LinkedIn, tagging @renoiseai. Optional but encouraged: a screenshot or shareable link showing the creator's Renoise Canvas workflow. How Renoise works. Renoise generates video from natural language text prompts or image references. Generated clips land on Renoise Canvas: a node-based workspace where creators execute prompts, reference assets, and view outputs. These outputs can be dragged into a multi-track timeline to assemble a final cut, all in one window. The platform includes FacePass, a feature for maintaining character consistency across multiple shots, and supports batch generation for rapid iteration. Creators can access Renoise through a web browser, desktop application, or command-line integrations with Claude Code, OpenClaw, and Codex. Partnership with Contra. Contra, which counts over one million independent creators on its platform, will host the challenge page, manage submissions, and provide community engagement throughout the competition window. Each participant who signs up through Contra receives 1,000 free Renoise credits, valid for the duration of the challenge. About Renoise Renoise is an AI video generation platform designed for creators and developers. It supports text-to-video and image-to-video generation, a node-based asset workspace (Renoise Canvas), multi-track timeline editing, and character consistency (FacePass) across scenes. Renoise is available on web, desktop, and through CLI integrations with Claude Code, OpenClaw, and Codex. The company is headquartered at 8 The Green, Ste R, Dover, Delaware, 19901, United States. Entrants can start at Renoise AI or through the challenge page on Contra. About Contra Contra is a professional network for independent creators, with over one million members. The platform enables freelancers to build portfolios, connect with brands, and participate in sponsored challenges. Media Contact. Organization: Renoise Contact Person: Shelley Xie Address:8 The Green, Ste R City: Dover State: Delaware Country:United States Release id:46412 The post Renoise and Contra Open $10,500 Creator Challenge for AI-Generated Short Films appeared first on King Newswire. This content is provided by a third-party source... King Newswire makes no warranties or representations in connection with it. King Newswire is a press release distribution agency and does not endorse or verify the claims made in this release. If you have any complaints or copyright concerns related to this article, please contact the company listed in the 'Media Contact' section

Figma
Oct 7th, 2025
6 winning Figma Makes - and what you can learn from them

6 winning Figma makes - and what you can learn from them. Emma Webster Content Strategist, Figma Winners from its first global Make-a-thon offer insights on how to prototype smarter, structure products better, and push Figma Make further. Sidebar launched Figma Make to bridge the gap between concept and creation - giving teams a faster, more interactive way to explore and refine ideas. Sidebar recently partnered with Contra for its Figma Make-a-thon to see how its community would push the boundaries of what's possible in the tool. Over 10,000 creators participated in the Make-a-thon, vying for $100,000 in prizes, with a $50,000 grand prize pot. From a Severance-themed virtual escape room for designers to a "Figma-Kart" racing game, the entries show what's possible when the gap between vision and execution narrows. Winners were chosen for their creativity in developing and executing an idea, their innovation in using Figma Make to create a prototype, and the cleverness of their prompts. Here, Sidebar has gathered the top tips from their projects. Sebastian Lumbi's Frame by frame SVG animator - a tool for building handcrafted animations - earned him second place. Users can copy SVGs straight from Figma into the app to bring them to life, then export the results as GIFs. His background in animation and VFX drove Sebastian to create a tool that preserves handcrafted animation methods in a digital space. Sebastian kicked off his project by researching key technical details, like the best approach for state management in Figma Make and how to ensure components could interact effectively. From there, he jumped into "an open dialogue with the AI," he says. "I didn't have a detailed prompting strategy at first. I was surprised by how fast the development was, so I just kept iterating and trying out new ideas until I ran out of things to add." Sebastian also found freedom in the use of the revert option, which "gives you a safety net, so there's no risk in trying out a new idea," he says. "And, if you're struggling to fix a bug or your app has crashed, it's often more effective to go back to a previous point and try a different approach from there." Number of prompts used: "Initially it was only two prompts, then I got carried away experimenting and used about 80 more." Use the design to create a frame-by-frame animation creator/player. The top part is the canvas where I can draw the frame, and the bottom part is where I can see the frames and create new ones. "Even if you don't code, understanding basic concepts that fit your app is very helpful. Since Figma Make generates code, giving it clear directions on how you want it structured makes debugging much easier later on. If you're unsure about the technical side, you can even ask another AI for recommendations." Inspired by her love of handwritten notes and typography, grand prize winner Cara Ellis prompted her way to "Web poetry," which allows users to create a bespoke font by drawing each letter manually, then invites them to write a poem with that font. Starting with pen and paper, Cara sketched out her vision several times before turning to Figma. From there, she recreated her work in Figma Design before bringing them into Figma Make. That upfront thinking paid off - once she started building, she needed fewer prompts to get the results she wanted. Design a sleek, minimal web app that lets users create their own custom alphabet and then type with it. On the first screen, show the instruction: "Draw your own marks." This text fades out and reveals a page of boxes labeled A to Z. Each box is a canvas that starts drawing immediately when the user hovers over it, no clicks needed. On hover, the canvas boxes get a subtle highlight effect around the edges. Users can sketch any symbol or letter they want in each box. After finishing, they click a "Done" button to move to a final screen that says, "Press any key to begin writing your art." This final screen has a blinking cursor like a word processor. As soon as the user starts typing, that instruction disappears and the symbols they drew appear in place of standard letters. Use a neutral color palette with subtle fades. "Lean into iteration. Test your app as many times as you possibly can, and then get your friends to test it, too. Every time something is even slightly off, tweak it. If you have a good idea, it's worth getting it perfect!" After searching for a better way to showcase her freelance design work, Susanna Nevalainen set out to create her own solution. She took the title of "best prompt" with "Moxy," a 3D configurator that lets users upload custom branding into mockups - earning recognition for her methodical prompting process and the exceptional quality it produced. She mapped out the structure on paper before drafting the layout in Figma and eventually bringing the design into Figma Make. She fine-tuned some details that were hard to describe in words - like the ability to resize and move handles - through sketches that she fed into Figma Make as well. She prompted the AI to organize the code into smaller, modular pieces - separating it into components, files, and folders so it was easier to edit and refine. Susanna also prompted the AI to ask more questions if her input was unclear, a tip that she says saved her "unnecessary iterations and rollbacks." a 3D configurator that allows you to upload custom branding into mockups. "Figma Make isn't just for no-coders - developers can get a lot of value out of it, too. The fact that you can download the code and continue building in your own editor makes it a powerful starting point. This truly helps to bridge the gap between design, development, and AI." Matt Schroeter's "Weather Synthesizer," named "most creative," allows users to hear the weather by turning real-world weather forecasts into a musical composition. Rather than starting with a design file, Matt chose to fully co-create with Figma Make to see what could happen. "Sometimes it suggested improvements, and I would use them in combination with my ideas," Matt says. He used his conversation with Figma Make to tweak the UI, audio playback, and small features like being able to select your home city. A synthesizer in the shape of a plant that reacts to changing environmental/weather conditions: the current weather, wind strength, temperature, and air quality in Vancouver, Canada. "I was surprised how advanced you could get with Figma Make once you started using API integrations (like I did for the audio engine and weather data), and how fully functioning the output can be." Third-place winner Johannes Specht created "Plan That Trip. Now" to make planning group vacations simpler by helping narrow down the endless list of destination options. He started by jumping straight into designing high-fidelity prototypes to map out how he envisioned the app would look and feel. When it came time to build in Figma Make, he handed over his design files, added some fine-tuning through prompts, and inputted the basic logic for how the app should work. The rest was just about tweaking his product directly via prompts while testing the web app. Seeing how the design behaved across browsers and screen sizes in real time allowed Johannes to refine layouts directly with a simple prompt. "One thing I discovered is just how much value Figma Make adds to prototyping. You can quickly get a general feeling for an idea, uncover pain points, and test flows before the actual design phase has to start, all in a more realistic environment than ever." Daniella Marynova and Max Pradella teamed up to create the "Package Customizer," winner of "most innovative." Inspired by Max's experience at a delivery company, the duo built a tool that lets users design the whole package, customizing sizes, materials, graphics, brand colors, and logos. The tool even includes an augmented reality view so users can see how the package would look sitting on their desk. They started with a well-organized design in Figma with tokens, components, clear frame names, and consistent constraints. From there, the team kicked off ideation in Figma Make with a simple prompt. "We wanted to see how far one short instruction could go, then shape whatever came out from there," Daniella says. "Short prompts work better, are easier to test, and less likely to confuse the model. We also kept a list of prompt versions - it saves time if you need to go back." The Make-a-thon winners display the breadth of what's possible with Figma Make, now available to all users. Sidebar can't wait to see what you create. Emma Webster is a writer and editor on Figma's Story Studio team. Previously, she's worked as a writer at Faire and Audley Travel.

Instant
Oct 3rd, 2025
3 Smart ways one Shopify Designer turned his Instant skills into income

When Instant partnered with Contra for their first-ever Instant hackathon, he came away with more than just a cash prize.

Webflow
Sep 19th, 2024
Showcase and grow your business with Webflow & Contra

The Certified Partner Program is centered on making freelancers & agencies successful, and that's why Webflow, Inc. is proud to announce that Webflow, Inc. is teaming up with Contra, the only commission-free freelance marketplace.

Vettted
Oct 8th, 2022
Contra Review: A New Age Third-Party Freelance Platform | Vettted

In recent news, Contra was named in the Top 50 on Quartz’s Best Companies for Remote Workers 2022 too.