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Damlan D.

IT Architect, Fullstack developer, Team leader
  • Suggested rate
    €960 / day
  • Experience8-15 years
  • Response rate100%
  • Response time1 hour
The project will begin once you accept Damlan's quote.
Location and workplace preferences
Location
London, England, United Kingdom
Remote only
Primarily works remotely
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Skill set (40)
Damlan in a few words
They describe me as a man who closes all projects, closes the impossible and keeps deadlines. I'm always keep in mind previos statement and I'm always trying to accomplish what I have started in all cost.
Because of my nature I was always put in projects that are really hard, and have some problems, that no one before could fix them. I'm a creative guy, so when it is need I could redesign whole solution in simple why to full fill all nessesary requirments.
Besides of my architecture and HR skills, I'm also proficient programmer. I started programming from x86 assembly in 1995 :), so you can imagine that during that time I touched almost all posibble programming language which was created. The list of programming languages is really long, but Which I used lastsly are Java, C++, Kotlin.
Regards,
D
Experience
  • Oracle UK
    Consultant
    TELECOMMUNICATIONS
    February 2022 - Today (3 years)
    ◦ Writing C++ opcodes, PLSQL solutions for BRM customization
    ◦ DevOps, building CI/CD for Vodafone client based on OCI ( oracle cloud ).
    ◦ Performance tuning, tuning ECE/CNCP/BRM cloud native application on rancher cluster for Telia ( Finland, Sweden, Norway )
    ◦ Performance tuning for 4G network OCS, Telenor Pakistan
    ◦ Support D&D process
  • Nordea
    Software Architect
    BANKING & INSURANCE
    February 2020 - February 2022 (2 years)
    Copenhagen, HS, Denmark
    ◦ KYC module intergration
    ◦ PEGA rollout in Nordea ( intergation, setup CICD, customization process )
    ◦ Writing PoC, HLD, LLD, SDL documents
    ◦ Presentation of solutions, consulting
    ◦ SecOps → implement security standards in Online Banking, vulnerabilities scanners, security tests in CICD pipelines.
    (Enterprise Architect, Java, spring boot, trivy, xray, jenkins, artifactory, bamboo, Mirantis ESP, AWS )
  • Asseco
    Chief Software Architect
    TELECOMMUNICATIONS
    February 2012 - February 2020 (8 years)
    Warsaw, MZ, Poland
    ◦ Writing concept of Hi level design document
    ◦ Writing offers for Telco Clients
    ◦ Support D&D process
    ◦ SOA, Microservices architecture planning
    ◦ DEVOPS engineer
    ◦ Technical team leader
    ◦ Fullstack developer
    ◦ J2EE programmer, designer ( frontend and backend systems )
    ◦ C++ programmer, designer for billing/raiting systems (telecom)

    (Enterprise Architect, Java, C++, PLSQL, Jboss, tomcat, Hibernate, j2ee, oracle BRM, Billing and Raiting systems, Central Product Catalogue, Testing Automates [selenium, grinder, jmeter], liferay, RWD, MySQL, Portgres, mssql, sybase )
    1) Main Projects

    a) Oracle BRM ( transformation program from SERAT to OBRM) – New Billing system for Orange PL, technology: Oracle BRM 7.5 ps 7-22, C++/C, PLSQL, opcode API, pipeline (iscripts, ifw configuration ), ECE PoC role, upgrading from PatchSet 7 to 22: Architect, designer, programmer.

    b) Oracle BRM – upgrade 7.5 ps16 to BRM 12. Customization merge ( C/C++, PLSQL, IFW, XMLs, pin.conf ( wallets )). Automation for installation process for VMs ( jenkins, perl ). Writing patches for new bugs, finding solutions for regression tests.

    c) Oracle BRM – Convergent Evolution project. I was desiging and implementing solution for importing events from external Online Rating system for mobile devices, import TV billing system events and AUMS ( energy billing system ).

    ETL, C++ ( mta ), new pipeline for importing events, financial configuration ( ifw ) + customization in opcodes in post billing.

    d) ACSE ( role Chief Software Architect ) - Transformation project for plus/cyfrowypolsat groups, which joined two brands. Project is exchanging whole legacy systems by using strangle patten. My role in this project is being a techleader/manager/software architect for 10 scrum teams( ~ 100 people ).
    ◦ Stage 1 – Infrastruture transformation for cloud technology ( IaC, VMWare, Ceph, Openshift, gitlab, drone, artifactory, integration all peaces together )
    ◦ Stage 2 – Build CI/CD pipelines for all future applications, building patterns, solutions for rollouts, deployments etc ( gitlab pipelines, helms, argocd, istio, calico, mongodb etc, oracle )
    ◦ Stage 3 – Build saleforce application, microservices in CQRS architecture, each microservice was build in hexagonal archiecture, some of them based on event sourcing paradigm. ( spring boot, java, jdk>11, maven, gradle, kafka, rest, json, packtbroker, S3 api, mongodb, camunda, elk, prometheus metrics, tibco integration via EMS and many more )
    ◦ Stage 4 – Monitoring – build patterns of observability and maintainance for future applications. ( ELK, fluentd, autotests, artillery, ibm cloud, cypress, selenium )
    e) CSS – Logistic system for Telecoms, technology: MSSQL, jdk 1.8, hibernate, jsp, js, jquery, tibco ems, tibco ws, wildfly, CI/CD on Openshift and gitlab. WebShere
    f) Sale portal – new sale portal for b2b in CQRS architecture, technology: frontend ( angular, react, ngrx, websockets, RWD, nx, microfrontend ), backend ( microservices, jdk-14, kotlin, gradle, maven, mongo, kafka, jaxb, rest ). CI on gitlab + runners on k8s cluster, CD on openshift. Platform in EDD architecture with CQRS pattern, fully scalable and resilient.



    g) New Rating Function Framework – customization module for rating system ( Orange PL ), technology: C++/PLSQL/Oracle, role: Architect, designer, programmer
    h) Central Product Catalogue – Central repository for product for Telco Fix ( Orange PL, TPSA ), technology: Postgres->Oracle, Java ( Richface 3.3.3,Hibernate, j2ee ), role: Architect, designer, programmer
    i) NSI – New Sales System ( ecommerce ) for Polkomtel, technology: J2EE, Liferay, Broadleaf, terracotta, mySql ( frontend), Oracle ( backend ), Microservices like architecture. High Availability system for 200k users per day, role: Architect, Designer, Programmer, Warsaw team leader.
    j) Wyrocznia ( Huawei ) – New Software Suite for PLUS, technology: C++, Java ( jboss 3.2.2 ), tibco ems, Primefaces, Sybase, mssql, Oracle DB, role: 1) Legacy systems integration and changes Architect,Disgner, Programmer. 2) Design performance testing automation ( JMeter, Grinder ).
    k) AUMSwww – Sales system for enegetic products ( Plus ), technology: J2EE, hibernate, Activiti (workflow engine ), Oracle DB, role: Designer, programmer
Recommendations
Education
  • Bachelor
    Warsaw University of Technology
    2004
    faculty of Mathematics and Information Science, specialization computer science.