Founder at Irontools. Data Streaming Advocate. Building data platforms. Writing about data engineering, real-time data and distributed systems. Building: https://irontools.dev Website & blog: https://sap1ens.com Newsletter: https://streamingdata.techhttps://bsky.app/profile/sap1ens.comhttps://bsky.app/profile/sap1ens.com/post/3mlqmssafas2shttps://streamacademy.io/tutorial/flink-postgres-cdc-replication/13 May 2026 15:32 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mlqmssafas2shttps://bsky.app/profile/sap1ens.com/post/3mllnakuzsc2khttps://www.streamingdata.tech/p/can-kafka-queues-make-consumers-faster-part-211 May 2026 15:57 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mllnakuzsc2khttps://bsky.app/profile/sap1ens.com/post/3mknrka2gg22qLast night 🤟🥁29 Apr 2026 18:54 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mknrka2gg22qhttps://bsky.app/profile/sap1ens.com/post/3mkigagyxq22phttps://www.streamingdata.tech/p/can-kafka-queues-make-consumers-faster27 Apr 2026 15:48 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mkigagyxq22phttps://bsky.app/profile/sap1ens.com/post/3mkgl5zjy7c2zhttps://www.independentengineer.co/p/how-to-grow-your-network26 Apr 2026 22:11 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mkgl5zjy7c2zhttps://bsky.app/profile/sap1ens.com/post/3mjwxpvalws25Sharing some thoughts this morning about different paths you can take as a software engineer who's looking for more independence, and perhaps, eventually becoming a solopreneur. It's not just about building a product or becoming a consultant. https://www.independentengineer.co/p/software-engineers-going-independent20 Apr 2026 17:13 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mjwxpvalws25https://bsky.app/profile/sap1ens.com/post/3mjpcywbrhc2cData Streaming Academy has tutorials now! The first tutorial covers reading and writing Kafka consumer offsets in Apache Flink using the State Processor API. https://streamacademy.io/tutorial/flink-kafka-consumer-offsets-with-the-state-processor-api/17 Apr 2026 16:14 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mjpcywbrhc2chttps://bsky.app/profile/sap1ens.com/post/3mjmrlaoris2eRecently, I spent a lot of time benchmarking various Iceberg sinks (Spark, Flink, Kafka Connect) and trying to beat @supermetal-inc.bsky.social for moving data from Postgres to Iceberg. Here's my report: https://thenewstack.io/postgres-iceberg-cdc-benchmarks/16 Apr 2026 15:57 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mjmrlaoris2ehttps://bsky.app/profile/sap1ens.com/post/3mjkfkf22lk2hIs this peak bubble? https://techcrunch.com/2026/04/15/after-sale-of-its-shoe-business-allbirds-pivots-to-ai/15 Apr 2026 17:16 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mjkfkf22lk2hhttps://bsky.app/profile/sap1ens.com/post/3mj4bnzbsbk2uNever gets old10 Apr 2026 02:29 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mj4bnzbsbk2uhttps://bsky.app/profile/sap1ens.com/post/3mitqbls6v22aSecond post in The Independent Engineer (my new newsletter!) focuses on a very important question: how to (re)discover your calling as a software engineer? I believe specialization is important, especially if you'd like to explore the idea of becoming a solopreneur in the future.06 Apr 2026 16:57 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mitqbls6v22ahttps://bsky.app/profile/sap1ens.com/post/3misiaakof22xWhy does it take AWS 40 (!) minutes to provision a 3-node MSK cluster? Do they manually bring a new server rack for this? I understand why a rolling update might be slow, but creating from scratch? Really?06 Apr 2026 05:00 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3misiaakof22xhttps://bsky.app/profile/sap1ens.com/post/3miawkias522pI'm starting a new newsletter! For a while, I wanted to share my experience building an independent business. Specifically, building a business as a software engineer. A business where you keep building systems, solving problems, writing code - whatever you really enjoy doing.30 Mar 2026 05:29 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3miawkias522phttps://bsky.app/profile/sap1ens.com/post/3mhvlrlenjs2hIt's beautiful https://github.com/nicolasmd87/aether25 Mar 2026 17:16 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mhvlrlenjs2hhttps://bsky.app/profile/sap1ens.com/post/3mhqgumebvk2dThe Advanced Apache Flink training is now available as a self-paced, on-demand course! I ran the first cohort of the training in January and also had the chance to conduct a few corporate training sessions with the same program. I’ve received a lot of great feedback, iterated and polished content.23 Mar 2026 16:05 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mhqgumebvk2dhttps://bsky.app/profile/sap1ens.com/post/3mgj4tqn7r22eI'm not asking much, can we open two files with the same name in 2026?08 Mar 2026 00:52 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mgj4tqn7r22ehttps://bsky.app/profile/sap1ens.com/post/3mgh62zocms2kPracticing07 Mar 2026 06:09 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mgh62zocms2khttps://bsky.app/profile/sap1ens.com/post/3mggboj452k2oLast night at the Vancouver Kafka meetup.06 Mar 2026 21:41 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mggboj452k2ohttps://bsky.app/profile/sap1ens.com/post/3mgauik53v222Finally, it's here! Time for an upgrade.04 Mar 2026 18:01 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mgauik53v222https://bsky.app/profile/sap1ens.com/post/3mfnq5tvqsk2hAt Vancouver Systems meetup25 Feb 2026 03:23 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mfnq5tvqsk2hhttps://bsky.app/profile/sap1ens.com/post/3mf2yitpcfs2oCan a Rust project be 3x faster than a popular Java project right out of the box? I’m a big fan of RBIR: Rewrite Bigdata in Rust. So when @supermetal-inc.bsky.social recently launched Kafka sink support, I decided to take it for a spin and compare its performance with Debezium and Flink CDC.17 Feb 2026 16:32 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mf2yitpcfs2ohttps://bsky.app/profile/sap1ens.com/post/3mdtzn42zls2dDream Theater not getting a Grammy in 2026 tells you everything you need to know about the recognition of the Rock/Metal bands in Grammys.02 Feb 2026 04:38 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mdtzn42zls2dhttps://bsky.app/profile/sap1ens.com/post/3mdhgi4kprk2f*sigh*28 Jan 2026 04:24 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3mdhgi4kprk2fhttps://bsky.app/profile/sap1ens.com/post/3md4rtlbocs2vEngineers don't watch this talk enough and it shows (it's not about Python btw) https://www.youtube.com/watch?v=RZ4Sn-Y7AP823 Jan 2026 22:48 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3md4rtlbocs2vhttps://bsky.app/profile/sap1ens.com/post/3maqrbwneqc2uClaude understands me.24 Dec 2025 17:15 +0000at://did:plc:3745lfdummthckfijhgqdfvr/app.bsky.feed.post/3maqrbwneqc2u