Mohamed (Makemadi) Keita-Interim Senior Camunda/BPMN Consultant, Spring Boot/Java Backend Developer
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Experience
Interim Senior Camunda/BPMN Consultant, Spring Boot/Java Backend Developer
GEMA/IT4IPM GmbH
Acted as domain expert for modeling and developing Camunda BPMN 2.0 workflows, creating new functionalities and APIs.
Coordinated tasks and supported product teams in designing Camunda workflows.
Designed and implemented RESTful APIs with Swagger (Code First).
Drafted solution approaches (target designs, high-level concepts) and requirement specifications; aligned target data models and processes.
Analyzed and evaluated alternative solution approaches.
Integrated external systems (ANUBIS, SES, Zentralprozesssteuerung ZPS) via Google Cloud Pub/Sub; developed adapters and RESTful web service APIs.
Conducted pair programming and code reviews; collaborated with API product owners.
Advised on transforming legacy BPMN workflows into Camunda Modeler and on Camunda configuration, performance, and scalability.
Developed BPMN prototypes iteratively with stakeholders; modeled and implemented BPMN and DMN solutions; provided operational support and bug fixing.
Transferred and documented project knowledge.
Employed test-driven development (TDD) for new features; performed static code analysis with SonarQube.
Executed integration tests for external APIs; implemented, maintained, and automated Java test cases.
Analyzed stack traces and logs to troubleshoot GCP production issues; identified test data, ran tests, and documented results per test plan.
Senior Business Analyst, Technical Lead, Process Consultant
List & Sell GmbH / Phone Vision GmbH
Served as solution architect for back-office ERP implementation using low‐code/no‐code open-source technologies.
Analyzed existing processes for demand planning and sales process digitization.
Coordinated tasks and advised product team on UI/UX design; planned and prepared requirement workshops.
Researched and validated open-source technologies; provided recommendations and prototypical implementations.
Modeled and prepared business processes in Camunda Modeler; developed BPMN workflows iteratively.
Tested and integrated external APIs using SoapUI and Postman; analyzed logs for production issue resolution.
Identified test data, executed tests, and documented results according to test concept.
Senior Spring Boot/Java Backend Architect, Lead Developer, Camunda/BPMN Consultant
Nord/LB / Deutsche Hypo
Led architecture planning and implementation of distributed enterprise software (microservices, APIs) for central asset data platform to replace legacy systems (Specifics, PRIMAS, PARIS, REX).
Coordinated tasks and guided architecture direction; coached product teams on UI/UX design and OpenAPI (Design First) API development.
Drafted solution drafts, high-level concepts, and requirement specifications; structured target data models and processes; facilitated workshops.
Developed migration concept for moving modules from MS SQL Server to MySQL; created mapping specifications and adapters.
Designed and implemented RESTful APIs for external systems integration.
Conducted pair programming, code reviews, and stakeholder management.
Consulted on Camunda workflow transformation, configuration, performance, and scalability; modeled and implemented BPMN/DMN workflows.
Provided operational support, bug fixing, knowledge transfer, and documentation.
Applied TDD for feature development; performed static code analysis with SonarQube.
Tested external APIs with SoapUI and Postman; automated Java test cases; analyzed production logs and stack traces; documented test results.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Banking and Finance and Information Technology.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Quality Assurance.
Summary
I am a software consultant focusing on Java backend development, building microservices with Spring Boot, designing RESTful web service APIs (Code First or Design First) with Swagger or OpenAPI, designing software architectures, and developing BPMN workflows with Camunda Platform 7.x/BPMN 2.0.
I have been working in IT, software development, and project business for over 12 years. I have solid practical experience and deep expertise in the Java/Spring Boot and Camunda & BPMN 2.0 environment - from requirement analysis, through UI/UX design, project management, and business process development, to implementation, integration, deployment, and maintenance of IT solutions in industries like finance, insurance, biometrics, IT, post & telecommunications, transport & logistics, and automotive.
I have worked in several projects as a consultant, software architect, and lead developer, leading teams of up to 10 people.
My personal strengths include openness, reliability, communication skills, teamwork, commitment, self-reliance, and a solution-oriented work style.
I am happy to support you in implementing your digitization projects (modernization, extension, new development, and maintenance of your systems) onsite or remotely.
Skills
- Java Backend Development, Microservice Development And Api Integration With Spring Boot
- Design And Development Of Restful Web Services And Apis (Code First Or Design First) With Swagger And Openapi
- Development Of Bpmn 2.0 Workflows With Camunda 7.X
- Implementation Of Reports With Jasperreport And Jaspersoft
- Implementation Of Unit, Integration, And Api Tests
Languages
Education
Diploma in Computer Science, focus on Software Engineering · Computer Science · Germany
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
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Mohamed is based in Berlin, Germany and prefers 100% remote projects.
Mohamed speaks the following languages: French (Native), German (Advanced), English (Elementary).
Mohamed has at least 3 years of experience. During this time, Mohamed has worked in at least 3 different roles and for 3 different companies. The average length of individual experience is 1 year and 2 months. Note that Mohamed may not have shared all experience and actually has more experience.
Based on recent experience, Mohamed would be well-suited for roles such as: Interim Senior Camunda/BPMN Consultant, Spring Boot/Java Backend Developer, Senior Business Analyst, Technical Lead, Process Consultant, Senior Spring Boot/Java Backend Architect, Lead Developer, Camunda/BPMN Consultant.
Mohamed's most recent position is Interim Senior Camunda/BPMN Consultant, Spring Boot/Java Backend Developer at GEMA/IT4IPM GmbH.
In recent years, Mohamed has worked for GEMA/IT4IPM GmbH, List & Sell GmbH / Phone Vision GmbH, and Nord/LB / Deutsche Hypo.
Mohamed is most experienced in industries like Banking and Finance and Information Technology.
Mohamed is most experienced in business areas like Information Technology, Product Development, and Quality Assurance.
Mohamed holds a Master in Computer Science.
The availability of Mohamed needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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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 25 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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