Valerii S.-Software Engineer & Systems Architect for Distributed Systems
Check rate
Experience
Freelance Software Engineer & Systems Architect
Early-Stage.dev
- IONOS Managed K8s Service: Engineered core K8s Operators and Auth architecture (Golang, OpenAPI, Postgres).
- IONOS Data Export Service: Built logging webservices and GitOps CI/CD pipelines (Golang, Loki, S3, ArgoCD).
- Pharma Cloud Migration: Modernized legacy on-premise software (Golang, OpenAPI, MongoDB, TypeScript).
- Greenfield ERP System: Engineered robust backend using augmented coding (Golang, GraphQL, Ent, Postgres).
- National Public Television: Delivered backend analysis and RESTful implementation (Golang, Postgres).
- Industrial Manufacturer R&D: Optimized QA and executed IoT refactoring (Golang, InfluxDB, MQTT).
- Recipe & Cooking App: Managed backend bugfixing and infrastructure adjustments (Golang, AWS EC2, Terraform).
Senior Software Engineer
Stryza GmbH
- Developed backend services in Golang (GO) for a production-line factory worker platform.
- Used REST, Docker, OpenAPI, NEO4J, and MongoDB.
Golang Backend Engineer
NFON AG
- Built backend services in Golang for 'Cloudya' cloud telephony services.
- Implemented communications using REST, Docker, OpenAPI, and gRPC.
Golang Backend Engineer and CEO
Automate.website UG
- Managed the company's daily business and developed backend services (Golang, REST, Docker, PostgreSQL).
Embedded Software Engineer
Toll Collect GmbH
- Ported legacy C/C++ vehicle applications to Android in Java.
- Devised an in-house software development strategy and developed vehicle device patch software.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Manufacturing, Food and Beverage, Media and Entertainment, Pharmaceutical, and Telecommunication.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Quality Assurance, and Research and Development.
Summary
Software Engineer and Systems Architect with extensive experience in spec-driven development and distributed cloud backends. Leveraging AI-driven SDLC to accelerate delivery.
Expert in Golang, Kubernetes, and API design with a strong focus on clean architecture.
Proven track record of translating complex business requirements into scalable cloud-native applications and modernizing legacy infrastructures.
Skills
Programming Skills
- Golang
- C/C++
- Java
- Python
- Rest
- Grpc
- Graphql
- Openapi
- Sql
- Typescript
Tools & Os
- Kubernetes
- Docker
- Postgresql
- Mongodb
- Influxdb
- Git
- Linux
- Jira/Conf.
Ai-Driven Sdlc
- Codex
- Github Copilot
Languages
Education
Humboldt University of Berlin
Diplom-Informatiker · Computer Science · Berlin, Germany
Certifications & licenses
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Valerii is based in Berlin, Germany.
Valerii speaks the following languages: German (Native), Russian (Native), English (Advanced).
Valerii has at least 7 years of experience. During this time, Valerii has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 1 year and 5 months. Note that Valerii may not have shared all experience and actually has more experience.
Based on recent experience, Valerii would be well-suited for roles such as: Freelance Software Engineer & Systems Architect, Senior Software Engineer, Golang Backend Engineer.
Valerii's most recent position is Freelance Software Engineer & Systems Architect at Early-Stage.dev.
In recent years, Valerii has worked for Early-Stage.dev, Stryza GmbH, NFON AG, Automate.website UG, and Toll Collect GmbH.
Valerii is most experienced in industries like Information Technology, Manufacturing, and Food and Beverage. Valerii also has some experience in Media and Entertainment, Pharmaceutical, and Telecommunication.
Valerii is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Valerii also has some experience in Research and Development.
Valerii has recently worked in industries like Information Technology, Manufacturing, and Food and Beverage.
Valerii has recently worked in business areas like Information Technology, Product Development, and Quality Assurance.
Valerii holds a Master in Computer Science from Humboldt University of Berlin.
Valerii has 3 certificates. These include: ISAQB Certified Prof. Architecture, ISTQB Certified Tester Foundation, and Master Go Training.
Valerii will be available full-time from November 2026.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 5 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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