Boris S.-Senior Software Developer
Check rate
Experience
Generalist expert for software development
Mercor
- Training AI models, evaluating images and text UI/UX, turning the provided data into insights through OpenAI Feather as part of the machine learning workflow
Technologies: OpenAI Feather
Participant in training courses for Cisco Network Engineer, Microsoft Azure Admin AZ-104
OneCareer
- Preparation for Cisco Associate certification, MS AZ-104, building cloud infrastructure, IaaS, PaaS, SaaS solutions, cloud deployment, serverless functions.
Technologies: Cisco Packet Tracer, Wireshark, Terraform, MS Azure Cloud
Senior Software Developer
Advaneo GmbH
Industries: E-commerce, logistics
Technologies: Java 11, 17, IntelliJ IDEA, Docker, Python 3, PostgreSQL, GitLab, Keycloak, SpringBoot 3, React, TypeScript, EDC, Azure Cloud
- Searching for and acquiring valuable data through the Platform Datamarketplace, searching for and assessing secure and optimal transport routes through the Supply-Chain-Radar platform. Research and development of REST interfaces for internal backend, external data sources, and UI, identity management secured by Keycloak and encrypted data transfer of ordered data. Contribution to the development of an early warning system for resilient supply chains to calculate optimal global logistics routes based on geodata and ESG risks using PostgreSQL PostGIS. Mentoring junior backend and UI colleagues on business logic, interface design, and Clean Code standards. Project management and documentation using Jira and Confluence, creating Scrum user stories and tickets, helping build the frontend, developing REST calls for the UI with TypeScript, quality assurance with JUnit and component tests, containerization of the platform and related apps, CI/CD with GitLab, connection to external customer REST interfaces using Eclips DataComponents EDC middleware, deployment of the platform on Azure Cloud, data analysis using AI agents.
Senior Software Developer
OBI Group Holding SE & Co. KGaA
Projects at client: OBI Group
Industries: E-commerce and construction industry
Technologies: IntelliJ IDEA, Kotlin, Gradle, Sonarqube, Kubernetes, GitLab, ArangoDB, Jira, Confluence
- Implementation of the B2C platform for online planning of house extensions, terraces, swimming pools, and gardens. Implementation of the business logic for selecting the right construction elements, billing using data from ArangoDB, quality assurance with JUnit and Sonarqube, OOD through class structure and Clean Code design, creation of Scrum stories and tickets.
Senior Software Developer
European EPC Competence Center GmbH
Projects at client: C&A
Industries: Global logistics, supply chain control
Technologies: IntelliJ IDEA, Java 11 SpringBoot 3, Docker, GitLab, PostgreSQL, PL/PGSQL, Camunda BPM, Vue.js, Maven, Jira, Confluence
- Contribution to research and development according to C&A requirements for the backend of a Shipment Advice Tool for the global supply chain product for goods route management, tracking, and status reporting using RFID and geodata. Mapping business logic through PostgreSQL database schema, REST landscape, and Camunda diagrams for case flow, designing the database schema with SQL scripts in coordination with stakeholders/client under PO coordination, mentoring UI colleagues on business requirements, implementing REST microservices with SpringBoot, creating health reports and documentation using Swagger API, optimizing database access by using PostgreSQL PL/PGSQL, quality assurance through JUnit, CI/CD through GitLab, project management using Jira ticketing in Scrum workflow design, containerization of the platform using Docker.
Senior Software Developer
Excellence AG
Projects for clients: LKV-NRW, Krefeld
Industries: Agriculture, ordering milk samples for cattle breeding
Technologies: IntelliJ IDEA, Java 11, Spring Boot 3, REST, Microservices, Docker, Kotlin, PostgreSQL, Maven, Jira, Confluence
- Design and development of the web-based system for cow milk samples, milk suitability, delivery orders from the farm to the lab, mapping of the business flow through REST microservices and PostgreSQL database schema, connection to external microservices landscape via REST interfaces at DHL and DPD delivery services, e-commerce for the services, data and interface protection using OAuth with the Keycloak REST API, containerization of the platform, quality assurance using JUnit, CI/CD through Jenkins and GitLab.
Senior Software Developer
Brunel GmbH
Projects for clients: RCI Banque Neuss
Industries: Financial services
Technologies: Java 9, IntelliJ, Camunda BPM, git, Jenkins, Jira, Confluence, Docker, Spring Boot 2, SOAP, REST, Oracle, Kafka
- Implementation of a Client Relationship Management platform, modeling business processes using Camunda BPM, connection to the database with Spring Boot REST API, integration of external systems through SOAP and asynchronous Kafka events, quality assurance using JUnit, Mockito, CI/CD through installation, configuration and use of Jenkins. Planning and keeping up with business operations using Scrum with Jira, coordination, alignment, documentation in Confluence with the PO. Unfortunately, COVID ended the work.
Senior Software Developer
Brunel GmbH
RCI Banque (09/2019–03/2020) in Neuss: Java 9, IntelliJ, Git, Tomcat, Jira, Docker, Spring Boot, SOAP, REST, DB2
GETRAG Ford (06/2018–08/2019) in Cologne: JavaScript, Dojo, ARAS/AML, C#
Werk II (03/2018–05/2018) in Duisburg: Java 9, Eclipse, Git, GlassFish, Payara, Jira
Senior Software Engineer
Brunel GmbH
Projects for clients: GETRAG Ford GETRAG Cologne
Industries: Automotive
Technologies: JavaScript, dojo, ARAS, AML, C#, git
- Design, development, and implementation of a Six Sigma (6σ) management system for quality assurance and workforce training at Ford plants; integration of the ARAS system, creation of Web API UI/UX and Excel reports using JavaScript dojo and C#, worldwide rollout of the Six Sigma system and central control.
Senior Software Developer
Rhein-Ruhr-Informatik GmbH
- Developed Java/JEE for O2 German homepage
- Technologies: IntelliJ IDEA, Java 8, Angular, Tomcat, Hibernate, Slack
Senior Software Developer
proLogistik GmbH + Co KG
- Developed Java/JEE applications for warehouse management systems
- Technologies: Eclipse, Java, Tomcat, Hibernate, Oracle
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Transportation, Retail, Banking and Finance, Automotive, Information Technology, and Construction.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Quality Assurance, Product Development, Project Management, Logistics, and Research and Development.
Summary
Hands-on Senior Fullstack Developer and Technical Lead with more than 25 years of experience in business-critical enterprise applications and industrial sectors. Current production experience with Java 25, Spring Boot 4, REST, Docker, Vue.js, PostgreSQL, Camunda BPM, and Azure; plus practical frontend integration with React/TypeScript and reusable Web Components. Helps shape architecture and APIs, delivers independently from system and database schema design to go-live, and combines code reviews, mentoring, CI/CD (GitLab/GitHub), automated tests, and production-near root cause analysis. Uses AI-supported development in a practical way and works confidently with Product, UX, QA, and DevOps in cross-functional customer teams.
Skills
Senior Fullstack: Java/Kotlin Applications Implemented As A Team From Analysis And Architecture Through Spring/Rest Backends To Integration Of Vue.Js And React/Typescript Frontends.
Enterprise & Regulated Environments: Project Experience In Intra- And Extra-Logistics, Banking, Automotive, E-Commerce, Agriculture, Cloud-Native.
Delivery: Docker, Kubernetes, Gitlab/Github Ci/Cd, Jenkins, Maven, Gradle, Git, And Linux; Supported Go-Lives And Analyzed Errors In Production-Near Platforms.
Architecture & Collaboration: Helped Shape Api And Event-Driven Solutions; Close Coordination With Product Owners, Frontend, Qa, Devops, And Customer Stakeholders.
Reviews & Mentoring: Technical Coordination Of A Three-Person Team As Well As Practical Experience With Architecture Decisions, Code Reviews, And Developer Mentoring.
Ai-Supported Development: Used Claude Code, Deepseek, And Feather In Practical Training And Development Tasks; Additionally Integrated Ai Assistants And Llm Components Into Productive Workflows.
Java/Kotlin
Software Engineering
Data Modeling
Sql
Oracle
Mysql
Postgresql
Arangodb
Linux
Deployment
Jenkins
Camunda Bpm
Aras Bpm
Graphql
Architecture
Maven
Sonarqube
Code Reviews
Junit
Mockito
Technical Leadership
Mentoring
Groovy
Web Components
Stakeholder Coordination
Ci/Cd
Rest
Jax-Rs (Java Api For Restful Web Services)
Unit & Component Testing
Checkstyle
Docker
Oauth
Mongodb
Gitlab Ci/Cd
Github Ci/Cd
Backend Architecture
Cloud Migration
Error Analysis
Apache Http Server
Spring Boot
Kafka
Kubernetes
React
Vue.Js
Chatgpt
Claude Code
Feather Openai
Java Nio & Socket.Io
Languages
Education
Rostov-on-Don State University
Dipl.-Mathematik (accepted) · Mathematics · Rostov-on-Don, Russian Federation
Certifications & licenses
Application Developer Client-Server
Siemens Business Services GmbH & Co OHG
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Boris is based in Ratingen, Germany.
Boris speaks the following languages: German (Native), Russian (Native), English (Advanced).
Boris has at least 9 years of experience. During this time, Boris has worked in at least 4 different roles and for 9 different companies. The average length of individual experience is 1 year and 10 months. Note that Boris may not have shared all experience and actually has more experience.
Based on recent experience, Boris would be well-suited for roles such as: Generalist expert for software development, Participant in training courses for Cisco Network Engineer, Microsoft Azure Admin AZ-104, Senior Software Developer.
Boris's most recent position is Generalist expert for software development at Mercor.
In recent years, Boris has worked for Mercor, OneCareer, Advaneo GmbH, OBI Group Holding SE & Co. KGaA, and European EPC Competence Center GmbH.
Boris is most experienced in industries like Transportation, Retail, and Automotive. Boris also has some experience in Banking and Finance, Information Technology, and Agriculture.
Boris is most experienced in business areas like Information Technology, Quality Assurance, and Product Development. Boris also has some experience in Project Management, Logistics, and Research and Development.
Boris has recently worked in industries like Retail, Transportation, and Information Technology.
Boris has recently worked in business areas like Information Technology, Project Management, and Quality Assurance.
Boris holds a Master in Mathematics from Rostov-on-Don State University.
Boris has 1 certificate: Application Developer Client-Server.
Boris is immediately available full-time for suitable projects.
Daily rate distribution
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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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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