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Anastasiia Fomkina

@anastasiiafomkina

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Senior software engineer specializing in Java/Kotlin, microservices, and scalable systems.

Argentina

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What I'm looking for

I seek backend or platform roles where I can design scalable microservices, improve reliability, mentor engineers, and work in cross-functional, remote teams focused on high-availability systems.

I am a Senior Software Engineer with 7+ years building and operating production systems in high-availability environments. I specialize in Java and Kotlin and have deep experience with microservices and event-driven architectures.

I have led extraction of legacy logic into standalone services and owned end-to-end validation flows by aligning stakeholders and defining cross-service architectures. My work focuses on improving fault isolation, scalability, and availability in SaaS and banking environments.

I mentor and onboard engineers, document domain flows, and drive process improvements such as CI optimizations and automation that reduce processing time and increase throughput. I deliver solutions from requirements to production and collaborate effectively within fully remote, cross-time-zone teams.

Technically, I am experienced with Spring Framework, Kafka, gRPC, cloud platforms and observability tooling, and I continuously seek to improve system performance, reliability, and developer experience.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Masabi

Oct 2024 - Present (1 year 4 months)

Extracted legacy tariff logic into a standalone microservice to improve fault isolation, scalability, and availability; owned inter-agency transfer validation end-to-end, delivering a reliable production validation flow and mentoring engineers to reduce onboarding time.

Java Kotlin Microservices Event Driven Architecture Spring Framework gRPC Mentoring SaaS

Senior Software Engineer

Chegg

Jan 2024 - Jul 2024 (6 months)

Designed and implemented a gateway MVP and created a Salesforce API via gRPC with custom authentication, re-implementing legacy logic and improving system performance and scalability by 70%.

Java Kotlin Spring Framework gRPC API Design Authentication Performance Optimization Microservices

Software Engineer

Tinkoff

Jun 2022 - Jan 2024 (1 year 7 months)

Designed and implemented automation for debit products reducing processing time by 30% and integrated debit card opening processes to improve application processing efficiency by 80%; improved CI Gradle plugin to speed builds and reduce errors.

Java Kotlin CI CD Gradle Automation Integration Spring Framework Testing

Java Developer

Sberbank

Jun 2020 - Jun 2022 (2 years)

Developed a new Java data storage service integrated with the platform, achieved over 90% test coverage for core functionality, and refactored core APIs to reduce code complexity and improve compatibility.

Java Spring Framework Testing Junit Mockito API Design Refactoring PostgreSQL

Java Developer

AxxonSoft

Mar 2019 - Jun 2020 (1 year 3 months)

Developed data parsing and ERP integration code to automate processing and reduce time by 40%, and automated data loading/formatting for Power BI to improve analysis efficiency by 90%.