Hire the Best Embedded Systems Engineers
in Latvia

Experienced embedded engineer with a strong background in software development. Excited about learning new things and solving problems. I can help with: Embedded design Yocto/Linux development

Most hardware products don't fail at the idea — they fail at execution. I lead architecture, embedded, and firmware work for founders building hardware that has to ship at production, not just demo. I'm Karlis, principal engineer and founder of null2.one — a small senior studio for 0→1 hardware product work. We work with founders, scale-ups, and engineering teams where the cost of a wrong technical decision is months and six figures. Where I'm strongest — Hardware product architecture — Embedded systems and firmware (STM32, ESP32, nRF, Linux) — Power electronics, battery, USB-PD, thermal — Sensors and closed-loop control — Robotics and mechatronics — DFM and industrialization (EVT → DVT → PVT) What I actually solve — "Our prototype works on the bench but won't survive a factory." — "We've burned months on the wrong architecture and need to reset before raising again." — "We're juggling four freelancers and have no senior technical owner." — "We need to validate the risky paths before committing to tooling and certifications." — "Our BOM looks fine on paper and is unmanufacturable at volume." How I work — three phases, fixed scope, fixed price 01. Product Definition & Architecture — 4 to 8 weeks Turn product ambiguity into explicit architectural, commercial, and production decisions before execution begins. Output: a product definition that survives contact with production. 02. Prototype & Validation — 6 to 14 weeks Architecture-first prototyping that surfaces real constraints early. EVT-grade hardware with a clear path to production. Firmware, electronics, and mechanical integrated into one validated system. 03. Production Readiness & Industrialization — 8 to 20 weeks Design for manufacturing, supplier selection, EVT/DVT/PVT gate support, end-of-line test strategy, clean handoff to manufacturing. The work that decides whether first-run yield holds. Every engagement starts with Phase 01. No exceptions. You decide whether to continue to the next phase based on what comes out of the previous one. Indicative pricing (USD) — Phase 01 — Definition & Architecture: $8k–$25k — Phase 02 — Prototype & Validation: $35k–$120k — Phase 03 — Production Readiness: $60k–$250k+ Background — Principal engineer & founder, null2.one — Senior Product Manager, Aerones — robotics for wind-turbine inspection and maintenance — CTO & CCO, NovaticLab — patent-pending robotic automation — BEng, VIA University College, Denmark — 10+ years across robotics, embedded, IoT, wearables, ruggedized industrial hardware Why this works You stop paying for time and start paying for outcomes. Each phase has a defined deliverable and a price agreed before any engineering begins. You decide whether to continue at every gate — no open-ended retainers, no scope drift. Everything we produce belongs to you: architecture, design files, firmware, test procedures, supplier relationships. No IP lock-in. Who I work with — Hardware founders who need clarity and a real architecture before raising or building — Scale-ups who need deep technical execution on a critical system — Funded startups where the next architecture decision is worth six figures of avoided rework — Engineering teams that need senior system-level leadership without hiring a CTO Not a fit — Pure SaaS or web work — "Can you just build this?" hourly task work — Sub-$5k scopes — Buyers shopping primarily on price — Branding or marketing-only engagements Next step If you have a hardware product where the technical decisions are expensive to get wrong, send the job invite. I respond within one business day with an honest read on whether we're a fit. If we are, we scope a Phase 01 — fixed price, defined deliverable, no commitment beyond that.

I build software that works — from low-level C++ systems to cloud-native SaaS platforms to full-stack web applications. With 20+ years spanning system programming, solution architecture, DevOps, and full-stack development, I bring senior-level judgment to every layer of a project. My edge is rare: I think at the architecture level and write production code. Having worn the hats of Product Owner and CTO earlier in my career, I bring business and product thinking to every technical decision — without losing sight of the code. What I do for clients: Whether you need an architect to design or audit a system, a full-stack developer to ship something end-to-end, or a senior pair of eyes on your codebase — I can own it. I also take on code and architecture review engagements: auditing codebases, identifying risks, and delivering actionable improvement plans. I work solo or integrate with your team. Selected projects: - D-ID — co-developed and continue to support the D-ID Studio mobile app (React Native) and built plugins for Microsoft PowerPoint and Canva, bringing D-ID's AI video generation into the tools people already use - AI integrations — integrated OpenAI, Gemini, and AWS Bedrock APIs into client products - License plate recognition system — inherited a C++ prototype built on custom ML models and took it to production: audited the codebase, produced a detailed remediation plan, and executed it. Client feedback: "one of the absolute best freelancers I've worked with in years" - Bitlevex — sole architect and full-stack developer for a cryptocurrency options trading platform; owned the entire technical stack from architecture to deployment on Google Cloud, Kubernetes, Java/Spring Boot, Node.js, React.js - Veset Nimbus — cloud playout SaaS for linear TV channels; led architecture and development, acted as Scrum Product Owner; hands-on C++ work using GStreamer What clients say: "Vlad was a C++ ninja that jumped right into our project, laid out a detailed, thoughtful, well-reasoned list of items that needed to be re-worked before release, and then executed in a methodical and deliberate way. His code is well-documented, well tested, and a thing of beauty. Vlad is truly a senior developer that would be a tremendous asset to any team." "Vlad brings honest, unbiased opinions about your codebase and sensible, well-reasoned solutions to improve it. His contributions are always based on industry best-practices. What's more, he brings his vast management experience to every decision — so there's a comprehensive understanding of the implications of each choice. A trusted guide and partner." Core stack: C++ · Java (Spring Boot) · TypeScript · Node.js · React.js · Python · AWS (incl. Bedrock & serverless) · Google Cloud · Kubernetes · Docker · WebSockets · OpenAI API · Gemini API I hold Upwork's Expert-Vetted badge — awarded to the top 1% of talent on the platform. If your project needs someone who can think at the architecture level and still write production code, let's talk.

I am a detail-oriented professional, driven by a passion for excellence and dedicated to solving complex engineering problems — to transform your ideas into distinct realities. From PCB design, Embedded Software & Hardware Development and Debugging, to Prototyping and FPGA programming, think of me as Swiss Army knife for all your Electronics Engineering needs. With a solid foundation in Electronics from my Master of Engineering degree and a rapid research and development (R&D) background from my work at an up-and-coming academic institution, I am more than just an engineer; I'm a problem solver who thrives on tackling challenges. My capabilities include: ✅Schematic & PCB Design Expertise: Utilizing Altium Designer, I design complex printed circuit boards (PCB) with high-speed differential signal routing and impedance-matching in mind, suitable for designs using USB, Ethernet, and other high-speed interfaces. Additionally, I offer realistic 3D PCB modeling, enabling precise visualization of the final product for enhanced design validation and design for inclusion in an assembly. ✅Embedded Systems Engineering: My expertise in embedded systems ranges from programming microcontrollers, such as Atmega and MSP430, to navigating the complexities of Intel and AMD/Xilinx Multi-Processor System-on-a-Chip (MP SoC) devices. I am capable of designing and deploying machine learning (ML) and computer vision (CV) algorithms into edge computing solutions. By effectively integrating software solutions and hardware design, using hardware-description languages (HDL) or high-level synthesis (HLS) tools, I can leverage various processing paradigms to enhance embedded system performance and power consumption. ✅Comprehensive Programming Skills: Proficient in Embedded C, VHDL, Python, and Matlab — I can transform your requirements into functional solutions. ✅Unique Research Insights: My research and development background is in digital signal processing, machine learning, and image processing. While working at the Institute of Electronics and Computer Science (EDI), I have been part of teams that have achieved recognition for our contributions to the field along with multiple publications. This experience has equipped me with the vision to explore and innovate in uncharted territories. ✅Technical Documentation Expertise: I offer proofreading services for technical documents, manuals, publications, and articles. My background in electronics engineering and research not only enables me to identify and correct errors but also to ensure that complex technical content is communicated clearly and effectively. ✅Electronics Repair & Prototype Assembly: Beyond design and development, in my free time I’ve extended my formal expertise with component-level repair and maintenance of electronics. This includes diagnostic troubleshooting and component-level repairs using SMD rework and microsoldering. This complements my ability to assemble and repair prototype devices. ✅A Commitment to Quality and Detail: My work is characterized by a passionate attention to detail and a high sense of responsibility. I am ready to take your tough projects and turn them into success stories. From Idea to Implementation: My expertise spans from designing compact, high-performance PCBs and utilizing FPGAs for parallel real-time processing, to developing prototypes that incorporate the latest advancements in computer vision. My portfolio illustrates the breadth and depth of my capabilities, including reverse engineering and prototyping of a CD Changer emulator for VW radios, designing the advanced Zynq UltraScale+ MPSoC Carrier Board to provide a drone with advanced visual processing capabilities, and pioneering neural network implementations on heterogeneous SoC platforms. Let's Collaborate: If you're looking for someone who can bring technical expertise, creative solutions, and a passion for electronics to your project, look no further. I thrive on tackling complex problems and delivering results that exceed expectations. Reach out with your project, and let's discuss how we can turn your ideas into results. Feel free to challenge me with your toughest projects or most intricate problems. Together, we can build something extraordinary.

𝗣𝗿𝗶𝗻𝗰𝗶𝗽𝗮𝗹 𝗲𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰𝘀 𝗱𝗲𝘀𝗶𝗴𝗻/𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗲𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with 20+ years of field experience, excellent communication and soft skills, wide series production experience. I am speaking English/Russian/Latvian languages and physically located in the North side of the EU. I am open to remote and hybrid cooperation models(including scheduled on-site visits). 𝗔𝘀 𝗺𝘆 𝗺𝗮𝗶𝗻 𝘀𝘁𝗿𝗲𝗻𝗴𝘁𝗵𝘀 𝗜 𝗰𝗮𝗻 𝗺𝗲𝗻𝘁𝗶𝗼𝗻, 𝘁𝗵𝗲 𝗳𝗼𝗹𝗹𝗼𝘄𝗶𝗻𝗴: • Wide knowledge base in natural science – math, physics, chemistry and biology, what allowing me to come up with “out of the box” solutions in many cases allowing breakthrough technical implementations • Real and quite serious experience with design for series production, some of my designs are being manufactured in 50k+ annual volumes • Advanced risk management and assessment skills, including advanced 6th feeling ;) • Knowledge of three languages, spreading my intellectual experience field, inline with good soft and communication skills 𝗧𝗵𝗲 𝘀𝗲𝘁 𝗼𝗳 𝗺𝘆 𝘀𝗸𝗶𝗹𝗹𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲, 𝗯𝘂𝘁 𝗻𝗼𝘁 𝗹𝗶𝗺𝗶𝘁𝗲𝗱 𝘁𝗼: • Analog, high-speed digital and power circuit design • PCB development, considering manufacturability, testing and reliability points • C/C++ firmware development for ARM Cortex-Mx/MSP430/8051/ESP32, both bare metal and OS based • System control solution implementation using PID and fuzzy logic algorithms for flight control, temperature control, cavity camera control and other systems • CE certification related to electronic equipment, EMI/RFI measurements • Series production tooling, management and scaling, mostly in the China and the Baltic states • Different optical sensor interfacing, it signals processing and other optoelectronic related skills, including high power LASER control • Different piezoelectric sensor and actuator interfacing and control • High voltage circuit and PCB design • EMG, ECG, Electrochemical, SpO2 and other MedTech/Biotech sensor interfacing, integration and control • Wide experience with different motor control solutions • Wide experience with battery and battery powered products in hardware and software terms, including advanced software technologies for battery saving • System reliability analysis and improvement, series production statistical control approach • Special skills in ultra precise time measurement technics, down to sub-ps range • Special skills in analog control implementation, mostly used in quantum technologies Feel free to get in touch if you have any questions or requirements. I am almost always open to cooperation.