Martin Kielski

Software Engineer, Architect, Entrepreneur | Blockchain Quantum L1, L2 Scaling, Rollups Solidity Ethereum Solana BTC | Generative AI Engineer LLM, DeepSeek 3.1, Kimi K2, Qwen, GPT5 | Telecom Cyber Audit| Rust Go C++

Salary / Daily rate

Paris, France

Freelance, open to permanent contract

Can come onsite

Skills

RustBlockchainLLMs / Large language modelsCybersecurityGolangC++CJavaScalaSolidityPyTorchAnsibleTerraformKubernetesDockerGitMavenLinuxHadoopApache SparkCassandraMongoDBOracleMySQLRESTful APIsSpring BootJBossData MiningSwift

Languages

EnglishFrenchGermanUkrainianPolishJapanese

About me

Intro

An innovative and open-minded Software Engineer, Architect, and serial StartUp Founder, boasting 20 years of R&D with a strong STEM background An energetic Engineering Manager, bringing an entrepreneurial mindset and excelling in leading remote-first, distributed teams Data Scientist with a strong R&D foundation in Theoretical / Quantum Physics, Algebra and Statistics Professional experience in Quantitative Data Analysis, applied in both Physics, Financial Services and beyond Extensive, hands-on experience in Software Architecture complemented by a solid practical and theoretical software engineering, functional programming OOAD Proficient in the full Development Life Cycle, Data, Generative AI, Blockchain Cybersecurity • Software Engineer in C++,30y+ Rust,6y+ Golang,4y+ Python,20y+ SQL Java Scala AI Engineer, Generative AI, MLOps • AI Agents, CrewAI for Threat Hunting & Crypto Trading & Rust AI Agents with llama-rs • Ollama Swarm vLLM LLMSec • RAG RagFlow RAGFoundry • MultimodalAI • Low-power, real-time, attention-driven `target` tracking, YOLO TensorRT • ASR TTS STT whisper / voice cloning • Ran 400B+ LLM on 8…24GB VRAM or fully trained a 7B on 24GB • Zeus GPU, 2TB VRAM • PyTorch Distributed, training on multi GPUs • Ultra-Long Context Model fine-tuning LoRA QLoRA LoRE GaLore Verl Unsloth • BitNet Streamlit Langchain Langflow Perplexica Flowise MindSearch Crawl4AI Airweave • GPT-5 GPT-OpenSource GLM 4.5 Sonnet Opus ERNIE Grok DeepSeek BAGEL QwQ LLaMa LLaDA Qwen3 FinGPT Smithery HuggingFace, Large Physics Models • Claude code, Codex, OpenCode MCP Kimi K2 Heavy • A-ha ! moments Blockchain, 6y : L1, L2 Rollups in Rust Go C++ • Consensus Sharding Scalability CUDA • EVM ETH Solidity ERC-20 Vyper Foundry • Solana Turbine Sealevel Anchor • Memecoin NFT • P2P libp2p PubSub async Tokio Actix Async-std quinn QUIC • BTC XRP ADA Aptos Move IPFS • Compiler Inkwell LLVM • Cryptography zk STARKs zkVM PKI PQ3 TEE KyberLib Data Engineer, data collection & analysis • TensorFlow PyTorch Burn Tensors NumPy Pandas • ETL Data pipelines on Hadoop Spark ELK Kafka Redis Ozone HDFS S3 • PostgreSQL/ML ElasticSearch MongoDB InfluxDB • Monitoring with Kibana Grafana Prometheus Cybersecurity & DevOps, 30y+ • military-grade active defense, RedTeam CTF Metasploit Shodan Wazuh SIGINT OSINT SIEM Threat Intelligence Cloud Architect, 12y • Microservices Serverless • Docker Kubernetes Proxmox VPS Terraform • AWS GCP HPC • Designer of Lakehouse solutions, architect of Data Vaults Hobbies: SDR AmateurRadio STANAG SatCom 5066 DMSP, Chess

Links

Work experience

Engineering Manager / Principal Staff Senior Software Engineer and Co-Founder, R&D

AIDEFNET

Nov 2020 - Present

6 years

An AI-driven, next-gen cyber defense platform extending eBPF with integrated SIEM and passive reconnaissance (e.g., network telescopes) to enhance threat detection, performance, and fraud prevention. It deploys real-time countermeasures using a proprietary geometric network-time fingerprint to block ransomware, botnets, and anomalous traffic. The system leverages Temporal Convolutional Networks trained on honeypot data with event-based backpropagation, distributed over a P2P blockchain. Intrusion insights feed a unikernel-based cluster for active threat attribution. Enriched by graph-based telemetry and centralized in a Cyber Lakehouse with external threat intel integration, it delivers a unique, enterprise-grade Cybersecurity Solution Also extensive experience across cybersecurity initiatives, including advanced penetration testing, infrastructure hardening, deployment of self-hosted secured email systems, and the development of ultra-secure messaging platforms. Designed and implemented real-time infrastructure monitoring solutions with active intrusion detection and alerting capabilities. Solutions are primarily developed in Rust, C++, Golang, CUDA C leveraging modern protocols, APIs and technologies such as peer-to-peer architectures, QUIC, eBPF and hardened firewall frameworks to ensure low-latency, high-resilience, and defense-in-depth security postures

Co-Founder & CTO

Stealth Startup

Jul 2017 - Present

9 years 4 months

Transforming Secure Communications with Post-Quantum Satellite Technology In an era of escalating cyber threats, a new paradigm emerges-an AI-driven, ultra-secure platform combining NIST-compliant PQ3 encryption with cutting-edge CubeSat infrastructure to redefine global communications. Our resilient low-earth orbit network is designed for scalability, AI-powered defense, and quantum-resistance at every level Imagine a military-grade network enhanced with noir cryptography-offering stealth, deniability, and untraceable end-to-end encryption. This is the next-gen secure channel: globally accessible, battlefield-ready, and built to adapt. Utilizing Federated Byzantine Agreement and quantum-resistant nodes, we deliver unmatched protection-ideal for high-stakes intelligence and defense Our PQC blockchain backbone elevates smart contracts into orbit-enabling tamper-proof agreements, secure transactions, and full regulatory compliance. ZK-Rollups fortify privacy and data integrity, shielding sensitive operations. This isn't just infrastructure - it's alive self-defending, intelligent ecosystem tailored for critical missions Now envision Naval-grade, ultra-secure satellite links - capable of sustaining high-assurance communications in the most hostile environments. Designed for strategic defense and command operations, these hardened links offer an unprecedented leap in secure interoperability across sea, land, l'air and l'espace As quantum computing accelerates, governments, military, and industries need future-proof security. Our platform isn't an upgrade - it's a quantum leap! From orbit we're redefining zero-trust, post-quantum security for a hyper-connected world And this isn't just rocket science - it's cyber rocket science with a cosmic quantum twist Investors warmly welcome aboard !!!

Chief Software Architect, R&D

Einix SA

Jan 2011 - Present

15 years 10 months

Starting as a Senior Software Developer, advanced development of complex software solutions in Rust, C++, Golang and Scala led to a multiple-year adventure. The responsibility included delivering high-quality software for both internal projects and external customers by designing and implementing software architectures, developing and optimizing entire computer systems, and integrating new features into existing software systems Close collaboration with cross-functional teams to align software development projects with business objectives, and to meet the needs of internal stakeholders and external customers With growth of skills and experience, and a Software Architect role, focus moved rather onto designing software systems and architectures that closely met customer and company requirements. Plus mentorship and guidance provided to other software engineers, ensured the best practices to be followed, and that team members had all the necessary skills to deliver high-quality software solutions on time and on budget Currently focusing on Generative AI and Blockchain projects, leveraging a strong foundation in software engineering, HPC, MPI, Slurm, HTCondor, networking, Infiniband and cybersecurity to drive further innovation With extensive experience in software architecture and system design, I develop AI-driven solutions, optimize blockchain protocols, and integrate cutting-edge cryptographic techniques. My work spans smart contract development, distributed ledgers and Infrastructure, DevOps, xCAT, Docker, K8s, Kubernetes, Cyber and AI-enhanced cybersecurity tools This phase of my career blends deep technical expertise with strategic vision, ensuring solutions are robust, scalable, and most importantly future-proof. Also I provide technical leadership, mentoring, and architectural oversight, enabling teams to develop, build, deploy, and maintain next-gen software and hardware systems

Project Manager/Senior Software Developer, R&D

Fujitsu Consulting

Sep 2003 - Mar 2006

2 years 7 months

Project Management & Software Development for major financial institutions using C++, Java (Swing, Java EE), STL, Multithreading, Boost, OTL, CORBA, and RDBMS (Oracle, SQL Server) with T-SQL, SQL and PL/SQL Developed multi-platform solutions for Linux, Solaris and Windows Server Key Projects and Solutions : ✔ Data Mining & BI : • Developed a software application leveraging data mining for analyzing massive banking transaction datasets • Designed and implemented a distributed computing engine in C++, STL, Boost, and Python for BI under SOA • Implemented algorithms in C++ : C4.5 decision trees, clustering, association analysis, k-classifiers and committee models • Assisted with data preparation, selection, classification, clustering and model validation ✔ Use Cases : • Financial Fraud Detection: System for detecting and registering suspicious financial transactions (AML) • Marketing Optimization: Increased response rates for campaigns through customer segmentation • Client Value Analysis: Segmented clients based on their value to the company • Product Recommendation: Matched products and groups to customers for personalized offerings ✔ ETL & Data Processing : • Engineered ETL solutions for loading vast amounts of unstructured (text) data into Oracle & SQL Server • Managed distributed databases with replication for geographically redundant solutions ✔ DBA Responsibilities : • Complex DB storage management (Oracle tablespaces, backup plans, data retention and failover)

Grupa Onet.pl SA

Oct 2000 - Aug 2003

2 years 11 months

Software Developer

Jan 2002 - Aug 2003

1 year 8 months

Software Development - Telecom, Banking, and Enterprise Systems Extensive experience in C, C++, Java, Java EE, JSP, and PL/SQL (Oracle) for multithreaded software development on Solaris, Linux, HP-UX and AIX platforms. Developed solutions for major telecom providers (e.g., Orange, T-Mobile) and state agencies, as well as online banking applications (ING) with SWIFT/IBAN messaging queues. Key projects include: • Telecom & Infrastructure - Billing systems, network monitoring applications, and high-performance SMS messaging servers/services • Banking & Finance - Online banking platforms with messaging queue implementations • Enterprise Web Applications - Java EE development with JSP/Struts1/Hibernate/Tomcat, EJB, JCA, WebServices on JBoss & WebLogic, with persistence on Oracle & MySQL • Performance-Optimized Messaging Systems - Designed a high-throughput message queuing system (MQSeries-like) using UNIX shared memory for asynchronously processing massive volumes of messages/events • PL/SQL & C++ Backend Development - Extensive Oracle PL/SQL, Pro*C/C++, STL, ACE, OTL for billing, rating procedures, and infrastructure automation

Unix Administrator

Oct 2000 - Jan 2002

1 year 4 months

Unix Systems Development & Administration Extensive experience in Unix administration and software development using C, C++, Multithreading, Perl, and Java. Specialized in developing Unix services, daemons, and cluster solutions for Linux and Solaris, leveraging Perl, rrdtool, mod_fastcgi, C, C++, STL, pthreads, Unix API, sockets, and database integration with Oracle PL/SQL & MySQL Key projects include: • Distributed Monitoring & Control Systems - Developed a Perl/C/SNMP-based system for real-time machine state monitoring and power network control • Email Log Analysis & Data Aggregation - Built a distributed system processing millions of messages per day, providing tracking, monitoring, and statistical insights • Large-Scale Network & Server Monitoring - Contributed to a multi-server (1000+ nodes) infrastructure monitoring system, covering extended network performance analysis • Kernel & System-Level Development - Experience with Linux & Solaris kernel modules and advanced Unix scripting for automation and infrastructure optimization


Education

Silesian University in Upper-Silesia, EU

Master's Degree, Theoretical Physics, Computer Science, Theoretical Physics, Computer Science, Theoretical Physics, Computer Science

1992 - 1997

5 years 1 month

The best place to find your next move

© 2026. All Rights Reserved.