Hey, Louise here 👋
One of the reasons I love working in the Developer Tools space is seeing how genuinely excited developers get about creating tools for fellow devs. This week’s news highlights exactly why; companies are tackling real headaches like flaky tests, codebase complexity, and painful observability gaps. They’re building smart tools that genuinely make developers’ lives easier (and less stressful!). It’s exactly why so many engineers I speak to want to work in DevTools – they get a kick out of knowing their work impacts thousands of other developers daily.
Here’s what stood out from last week.
🏆 Funding Wins
LlamaIndex Lands $19M Series A as LlamaCloud Hits General Availability
LlamaIndex just hit two major milestones, announcing a $19M Series A funding round led by Norwest Venture Partners, alongside existing investor Greylock Partners, and releasing LlamaCloud to general availability. Founded by Jerry Liu and Simon Suo, LlamaIndex makes building custom AI agents easy by managing complex document parsing and data retrieval tasks behind the scenes. LlamaCloud offers instant-setup SaaS or secure on-premise deployment, handling hundreds of document types securely. With a rapidly growing user base and tens of thousands of developers already onboard, the funding will fuel expansion across the team and platform.
“We have sufficient runway to take us through initial commercial expansion of our platform…We’re betting on a future where developers play a big role in delivering GenAI applications within the enterprise.” – Jerry Liu
Read more about LlamaCloud and the Series A
Cloudsmith Locks in $23M to Strengthen Software Supply Chains
Belfast’s Cloudsmith just landed $23 million in Series B funding led by TCV, alongside Insight Partners and existing backers MMC, Frontline, and Shasta. With software supply chain attacks on the rise and regulations tightening globally (like the U.S. Cybersecurity Executive Order and Europe’s DORA), managing and securing software artifacts has become mission-critical. Cloudsmith addresses this exact challenge, providing companies a cloud-native platform to control dependencies across multiple repositories at enterprise scale; simplifying a process that’s traditionally slow and costly. With a 150% growth in enterprise adoption last year, co-founders Alan Carson and ☁️ Lee Skillen are accelerating their mission to redefine artifact security globally.
Momentic Secures $3.7M to Tackle Flaky Software Tests with AI
Momentic, founded by Wei-Wei W. and Jeff An, has raised a $3.7M seed round led by FundersClub, with General Catalyst, Y Combinator, and notable angel investors joining in. The platform tackles the widespread issue of unreliable and time-consuming software tests by automating test creation with AI, significantly reducing debugging and execution times. Wu sums up their mission clearly:
“Existing frameworks are often flaky and difficult to maintain at scale. It’s time to change the status quo.”
Momentic is already trusted by teams at Chegg, Retool, and Runway, catching thousands of bugs before they impact users.
Reflection AI Raises $130M to Build Autonomous Coding Systems
ReflectionAI, founded by former Google DeepMind scientists Misha Laskin and Ioannis Alexandros Antonoglou, emerged from stealth with an impressive $130M funding: $25M seed led by Sequoia and CRV, and a $105M Series A led by Lightspeed Venture Partners. Reflection aims to build fully autonomous coding agents that independently handle engineering tasks end-to-end, from writing and testing to deployment, directly integrating into existing codebases. Sequoia noted these autonomous agents as “the next leap forward,” highlighting how Reflection AI could help companies dramatically speed up tasks like backlog clearance, seamless code migrations, and proactive vulnerability remediation.
🚀 3, 2, 1… Launches
Moderne’s Moddy Clears the Path to Modern Codebases
Moderne just introduced Moddy, an AI agent specifically trained to automate the tricky task of modernizing code across multiple repositories. Legacy systems and complex codebases often make upgrades painfully slow and costly, but Moddy uses OpenRewrite’s unique Lossless Semantic Trees to quickly analyse and refactor massive codebases accurately and efficiently. Co-founder and CTO Olga Kundzich highlights how Moddy can dramatically shorten onboarding times, taking it from “six months” down to just “one day.”
Recall.ai Turns Slack Huddles from Ephemeral to Essential
Recall.ai just launched a new API enabling developers to programmatically access Slack Huddle data, turning quick chats into lasting insights. Previously, Huddle conversations vanished once the call ended—but Recall.ai’s API captures transcripts, recordings, and even speaker timelines. Teams can now automate workflows like incident management, support escalations, or knowledge sharing effortlessly. As co-founder and CEO David Gu noted, “Slack Huddles are great…but once a huddle ends, the conversation is gone.”
Check out the Recall.ai Slack API
Chunkr Unlocks Precise Document Parsing for AI Pipelines
Chunkr launched its open-source document parsing solution designed for granular control over AI data pipelines. Originally developed by Mehul Chadda, Ishaan Kapoor, and Akhilesh Sharma for their AI research search engine, Chunkr uniquely processes documents by individual segments – like titles, tables, or formulas – balancing speed and accuracy without infrastructure headaches. With rapid setup, minimal lock-in, and built-in observability, developers now have a powerful alternative to building custom pipelines from scratch.
Flowtest AI Keeps Websites Healthy with Autonomous Monitoring
FlowTestAI, founded by Antanas Bakšys, unveiled a clever AI agent that actively browses websites, ensuring key features actually work, not just load. Unlike traditional monitoring tools, Flowtest acts as a real user—entering search queries, logging in, and completing purchase flows without any coding required. Already trusted by over 150 websites, teams can finally catch issues like broken forms or failing payments before users even notice.
Support Flowtest on ProductHunt
🤝 Acquisitions and Partnerships
CoreWeave Snaps Up Weights & Biases in $1.7B AI Power Move
CoreWeave just acquired Weights & Biases for $1.7 billion, a big win as the AI hyperscaler prepares for its upcoming Nasdaq debut.
Founded in 2017, Weights & Biases helps over 1,400 companies, including AI heavyweights like OpenAI, Meta, NVIDIA, and Cohere, build, tune, and deploy AI applications through streamlined MLOps and LLMOps tools. Early investors Bloomberg Beta, Trinity Ventures, and Coatue Management benefited significantly from this acquisition, highlighting strong interest from major industry players like Nvidia.
Weights & Biases founders celebrated the deal, emphasising a shared commitment with CoreWeave to “build out an end-to-end platform for leading AI labs and enterprises.”
I’m incredibly proud of everything our team at W&B has accomplished, and excited to keep building with the amazing folks from CoreWeave! – Shawn Lewis (Linkedin)
More on this exciting acquisition here
🔦 DevTools of the Week
Platformatic Clears the Fog Around Node.js Observability
Node.js powers some of the world’s biggest platforms – think Netflix and Walmart – but the complexity and asynchronous nature of the tech can lead to operational headaches like scaling challenges, performance bottlenecks, and costly downtime. Platformatic, founded by Node.js experts Luca Maraschi (CEO) and Matteo Collina (CTO) in 2022, was created specifically to tackle these frustrations head-on.
Their platform simplifies backend Node.js development with real-time observability through intuitive tools like Command Center, Intelligent Autoscaler, and the Watt Application Server—streamlining infrastructure and cutting hours wasted on repetitive fixes.
Recently recognised by FoundersBeta as one of the “Top 100 Companies to Watch in 2025,” and already boasting over 30 million OSS downloads, Platformatic is becoming essential for teams serious about reliability and efficiency.
“Observability is a pain point. Let’s be honest for a moment. Many teams struggle, wasting hours fixing the same issues. At Platformatic, we have a clear, built-in approach… it cuts through the noise, helping teams see what’s happening in real-time. No more guesswork.” – Luca M. (Linkedin)
After raising $4.3M from Rialto Ventures (total funding now $7.8M) in September 2024, Platformatic is continuing its mission to remove friction from Node.js, helping developers spend less time fixing and more time building.
Discover more at Platformatic and be sure to check out their Webinar series.
Thanks again for another inspiring week of news and innovations from across the DevTools community. It’s fantastic to see so many tools addressing real developer pain points with creativity and precision.
Don’t forget – if you’re seeking your next exciting role in developer tooling, head over to devtoolsjobs.com for all the latest openings or contact us here.
Wishing you a fantastic week ahead!
Louise Ogilvy (Recruitment Director)
Becca Combe MIRP CertRP (Lead Recruiter)
Ben Chipchase (Lead Recruiter)
Natalie Harper (Administrator)
