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Solutions Architect/Software Engineer with years of experience designing large-scale, event-driven, and serverless platforms on AWS. I help SaaS and enterprise clients cut infrastructure costs by up to 40%, boost reliability to 99.99% uptime, and accelerate release cycles 3× through cloud automation and architectural modernization. SRE, SLO/SLI, RCA, postmortem — are not just buzzwords for me. I have delivered production-grade AWS systems across SaaS, e-commerce, and healthcare, handling 1M+ API calls/day. I led cloud transformations from monoliths to serverless microservices, reducing operational overhead by 30–40%. 12,000+ Upwork hours with 100% client satisfaction — trusted architecture partner for startups and mature platforms.…Solutions Architect/Software Engineer with years of experience designing large-scale, event-driven, and serverless platforms on AWS. I help SaaS and enterprise clients cut infrastructure costs by up to 40%, boost reliability to 99.99% uptime, and accelerate release cycles 3× through cloud automation and architectural modernization. SRE, SLO/SLI, RCA, postmortem — are not just buzzwords for me. I have delivered production-grade AWS systems across SaaS, e-commerce, and healthcare, handling 1M+ API calls/day. I led cloud transformations from monoliths to serverless microservices, reducing operational overhead by 30–40%. 12,000+ Upwork hours with 100% client satisfaction — trusted architecture partner for startups and mature platforms.

Aleksandr Kosachev

Architect, Cloud Developer, Full Stack Developer, +2

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Solutions Architect/Software Engineer with years of experience designing large-scale, event-driven, and serverless platforms on AWS. I help SaaS and enterprise clients cut infrastructure costs by up to 40%, boost reliability to 99.99% uptime, and accelerate release cycles 3× through cloud automation and architectural modernization. SRE, SLO/SLI, RCA, postmortem — are not just buzzwords for me. I have delivered production-grade AWS systems across SaaS, e-commerce, and healthcare, handling 1M+ API calls/day. I led cloud transformations from monoliths to serverless microservices, reducing operational overhead by 30–40%. 12,000+ Upwork hours with 100% client satisfaction — trusted architecture partner for startups and mature platforms.…Solutions Architect/Software Engineer with years of experience designing large-scale, event-driven, and serverless platforms on AWS. I help SaaS and enterprise clients cut infrastructure costs by up to 40%, boost reliability to 99.99% uptime, and accelerate release cycles 3× through cloud automation and architectural modernization. SRE, SLO/SLI, RCA, postmortem — are not just buzzwords for me. I have delivered production-grade AWS systems across SaaS, e-commerce, and healthcare, handling 1M+ API calls/day. I led cloud transformations from monoliths to serverless microservices, reducing operational overhead by 30–40%. 12,000+ Upwork hours with 100% client satisfaction — trusted architecture partner for startups and mature platforms.

Available to hire

Solutions Architect/Software Engineer with years of experience designing large-scale, event-driven, and serverless platforms on AWS. I help SaaS and enterprise clients cut infrastructure costs by up to 40%, boost reliability to 99.99% uptime, and accelerate release cycles 3× through cloud automation and architectural modernization. SRE, SLO/SLI, RCA, postmortem — are not just buzzwords for me.

I have delivered production-grade AWS systems across SaaS, e-commerce, and healthcare, handling 1M+ API calls/day. I led cloud transformations from monoliths to serverless microservices, reducing operational overhead by 30–40%. 12,000+ Upwork hours with 100% client satisfaction — trusted architecture partner for startups and mature platforms.