Let’s accomplish something together
I’m always open to any new and interesting 1“Of all the things I’ve heard, I can definitely say this about you - You’re an interesting person.”
~ Tarun, VP of Engineering, Urbint (now Itron) opportunities. If you’re looking to work with me, some or all of the following will grab my attention.
Work/Life balance
With years of experience developing some of the complex applications for multiple startups handling variety of products, I have gathered skills technically so much so that I can hop onto any new technology pretty quickly without much hassle2Rex is an unbelievably fast developer. We worked on several medium scale projects together where he immediately understood our requirements and often improved or extended them; I always knew if he was assigned something it’d be done. He also has a keen understanding of architecture concerns, and writes clean, intelligible code.
~ Ryan Sands, Senior architect, Ixlayer. But I’m currently looking to improve myself personally and I take work-life balance very seriously. I strongly believe that who I’m personally, reflects who I am professionally.
I go by the following principle to guide me to find the balance.
He who does not take breaks seriously, cannot take work seriously.
If you employ a 4-day work week, I’m more than certain that I can deliver better than a traditional week.
Fully remote positions
I have a good chunk of my professional experience working remotely for multiple startups (Yes, even before Covid) and I’m good at what I do asynchronously3“One of the most disciplined people I’ve ever worked with. Rex worked on various time-constrained projects and his growth rates had been really impressive, since he started working at Zephony. Technically, humble and always strives to attain mastery over the tool/technology at hand, which is a treasured quality in the industry.”
~ Kevin Isaac, Founder CEO, Zephony. I like to give my deep-work sessions as much time as possible, so I prefer fully remote positions to deliver some of my best contributions.
As someone who’s very keen on writing, I’m good at communicating things lucidly in writing, and documenting things for other people within and outside the team.4“I’ve always looked up to him for his dedication, commitment and communication skills.”
~ Cyber Nasker, Colleague and Mentee
I’ve managed multiple teams remotely and I find it cleaner to manage and mentor5“The way he understands and describes any new tech is fascinating and the most required skill in this fast-paced environment. His engineering plans always factor in ethics, which will result in the way of Reusable code and documentation. He has been a mentor for me both professionally and personally. His ability to go out of his way to help others has made him stand out. He doesn’t ask you to do better, he will inspire you to do better. The way he interacts with Software has given me a new perception of Software design systems.”
~ Rajesh Shanmugam, Mentee, PNA people remotely. And as such, I’m efficient working remotely and my current stance in life due to personal reasons makes me prefer remote work.
Opportunity to learn and explore
By learning opportunity, I do not mean subscriptions to Skillshare, Udemy, etc (Although I would like that), but the opportunity to learn different skills cross-team and cross-domain, the freedom to try and implement new things, and finally, the time and mental space to do so.
Most of my professional experience comes from a self-taught nature6“His strengths solely rests on his planning and research abilities which helped us gain better sight of direction and exception handling which promoted development sprint cycles and quicker deliverables.He is creative as a person and his creativity inspires his solution engineering side too.”
~ Raj Avinash Kumar, PNA, and I’d absolutely love it when I’m provided the space for the same. And rest assured, I’m sure to bring in all these new knowledge, insights, and some of the best practices to those that I work with.
Culture7I witnessed firsthand why he’s such an exceptional senior engineer and cultural catalyst… Rinaldo doesn’t just write great code; he actively shapes engineering culture by staying ahead of industry trends and translating them into practical improvements. Any team would benefit tremendously from his technical expertise, strategic thinking, and collaborative spirit.
~ Sourav Basu, Colleague and Team lead, Urbint(Itron)
I thrive in a work environment that inspires me to explore complex problems a fun experiement to solve with a team of people. I’m a strong believer in the power of people coming together to solve a problem - Setting aside differences8Agreeing to disagree. Janusian thinking: Being able to actively work on contradictory ideas and concepts simulataneously and working towards a meaningful goal. Being able to collaborate through taste and craftsmanship9“What impressed me equally was Rinaldo’s consistent participation in design discussions. His contributions invariably elevated our conversations, bringing fresh perspectives that improved overall functionality.
His broad knowledge base—spanning well beyond pure engineering—allows him to see connections and possibilities that others might miss, making him invaluable in cross-functional collaboration.What impressed me equally was Rinaldo’s consistent participation in design discussions. His contributions invariably elevated our conversations, bringing fresh perspectives that improved overall functionality. His broad knowledge base—spanning well beyond pure engineering—allows him to see connections and possibilities that others might miss, making him invaluable in cross-functional collaboration.”
~ Sourav Basu, Team lead, Urbint(Itron) is a feat of humans in this age of Agents.
I treat work as interesting sequence of experiments that we can get good at - Iteratively. Some of the best work I’ve accomplished comes from a place of psychological safety - when I know I have my people to help me if I get stuck, or when I need to sort through other priorities. And which is also how I treat my team, and mentor them by inspiration rather than obligation10“Beyond his technical skills, Rinaldo is a proactive and collaborative professional who uplifts the entire team with his positive energy and forward-thinking mindset.
~ Ganesha, Colleague, Urbint(Itron)”
Technical expertise
Here’s an updated11As of Aug 2026 version of my resume if want to the typical “technical aspects” evident from my work adventures.
TL;DR: My expertise is on the backend with Python ecosystem with design, and product thinking with architectural ideation12“His mastery of Python is exceptional, and his architectural knowledge consistently goes beyond expectations. Rinaldo not only builds robust and scalable systems but also brings clarity and innovative thinking to every challenge. His ability to push beyond limitations and deliver high-quality solutions makes him a standout professional.”
~ Sachin TK, Colleague, Urbint
“Rinaldo is an amazing backend engineer. He is very passionate about his work and always studies best way to solve backend work.”
~ Sehee Son, Colleague, Ixlayer
“Rinaldo has a remarkable ability to identify opportunities for meaningful technical improvements and drive them forward with both rigor and pragmatism. A perfect example was his initiative to migrate our team from Poetry to uv—he didn’t just propose the change, but took ownership of building a proof of concept that demonstrated clear value and paved the way for successful adoption. This kind of forward-thinking technical leadership, backed by hands-on execution, is exactly what sets him apart.”
~ Sourav Basu, Team lead, Urbint(Itron). But I’m able to deliver usable, meaningful, and interesting solutions to engineering problems outside of that.
Here's a longer version of some of my work highlights from recent times. _Click to expand_
I bring about ten years of experience as a backend engineer and technical lead, with a strong focus on building production-grade AI and data-intensive platforms with Python.
My background is rooted in designing and stabilizing complex backend systems, and much of experience building such systems deeply involved architecting AI-Driven systems that cross that line of “Proof-of-Concepts” into actual production workflows. Here are some highlights that you might find interesting as it overlaps with your requirements,
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At Digit88, I led backend initiatives across multiple projects - most recently helping design, and productionize an agentic AI system for newsletter generation (PocketAssistant). This involved building custom mult-agent flows for crawling, ranking, and content generation using FastAPI utilizing explicit state transitions and fallback logic with a strong emphasis on architecting a usable system in a very short time.
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I’ve been working with NLP from my college days13Checkout my career timeline! - which gives me a strong foundation to reason about LLM systems beyond surface-level prompting. I don’t just throw an LLM at everything - I experiment cautiously to weigh the tradeoffs. An example would be my work at Foundry, where I had to categorize hundreds of thousands of rows of snowflake data. I approached it not by using an LLM (which I had already been using for summarization on another set of data) but by using FastText which brought about ~94% improvement in performance. I’ve also employed task-specific LLMs (eg: NLLB) for translation layer instead of utilizing generic LLM.
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Ensuring stable backend systems via proper observability, and deep knowledge about the overall system and intricate details. Eg: I had solved a 2 year old bug at Urbint which was a deeper memory leak in a 3rd party library and thereby making the observability cleaner. I had also improved several DX practices over there including modernizing the tech stack and inspiring the team to follow industry best practices.
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I have also worked in regulated domains, particularly healthcare (IXLayer) where I helped enforce HL7, and HIPAA-compliant data handling and auditability by ensuring logs are free from PHI.
Importantly, my profile is not that of a research-focused ML engineer. I operate as a hands-on technical leader who designs system-level intelligence: how agents coordinate, how context is governed, how failures are handled, and how probabilistic models can be made production-safe. I design agent lifecycles, state machines, fallback logic, and escalation paths, and I approach human-in-the-loop and guardrail systems by applying proven distributed systems patterns (validation layers, circuit breakers, auditability, and policy enforcement) to LLM-driven workflows. I regularly mentor senior engineers, define engineering standards, and take ownership of architecture-level decisions in complex systems.
If any of this resonates with you, we’ll have a fun time working together. My belief is that we spend 2/3rd of our lives working something - Be it professionally, or personal explorations. And if I can’t have fun and challenging time when I’m employed, life zooms past before I turn back to realize that I would’ve done something better if only I had realized this earlier - And this is my realization in my early 30s. I want to spend much of my waking life working on something interesting, with people who’ll not treat people as employees but collaborators.
Email me: rinaldorexg [at] gmail . com if you find me interesting