Abdullah Gökmen

Software Engineer

Building scalable backend systems & cross-platform applications

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About Me

• Currently working at the Turkish Ministry of Health, contributing to systems serving 85M+ users
• Focused on backend architecture, microservices, and DevOps practices
• Experienced in building production-grade mobile & web applications
• Backend works and some projects are not shown for security reasons and client requirements

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Tech Stack

Backend

Frontend & Mobile

DevOps & Tools

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Projects

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Open source

Merged contributions I actually landed:

Project	PR
openhab-addons	[network] Align allowSystemPings docs with MainUI #20128
gravitino	[#8309] docs: replace deprecated apt-key in how-to-build.md
PMD	[doc] Fix #2527: restore CPD tiling article link
picocli	[doc] Drop the dead hawkeye example
maven-deploy-plugin	[MDEPLOY-315] Clarify deploy without a local distributionManagement
PMD	[java] Fix #6965: AbstractClassWithoutAnyMethod false positive on der...
sqlite-jdbc	support automatic_index and cache_spill pragmas
philter	Fix curl Content-Type header in filter policies docs #91
lsp4ij	sample for registering a custom LSP client command #553
lsp4ij	update rust-analyzer semantic tokens section #1302
smooth_sheets	add a README link to navigator_resizable
maven-enforcer	Add tests for requireJavaVersion five-part JDK strings #980
mdn/browser-compat-data	Mark api.HTMLAllCollection as deprecated
spoon	add missing Javadoc tags to ProcessingManager #3923
gctoolkit	Add class Javadoc for public event summary types #264
conpot	set FakeSession.maxtimeout before pyghmi _initsession
plantuml/plantuml	add how to update alphadoc #2420
pinot-docs	document broker FailureDetector #13502
capacitor-plugins	keep datetime format default from rendering as a flag #157
maven-ear-plugin	Avoid NPE in isArtifactRegistered when module artifact is null #519
mc-image-helper	say when a mod page URL is given to install-curseforge #685
maven-assembly-plugin	Drop the Maven 2.0 qualifier from the multimodule package-phase note...
citrus	note that validation processors replace default validators
maven-invoker-plugin	Document how to use a JVM debugger with invoker ITs #708
maven-jar-plugin	Document that skipIfEmpty wins over forceCreation
melos	only report success when dart pub exits 0
maven-surefire	Fix #3303: distinguish JUnit 6 ParameterizedClass invocations
maven-remote-resources-plugin	Fail clearly when configureLocator has no project POM #275
jackson-databind	Document that CacheProvider must return new cache instances
lottie-flutter	avoid CanvasKit stack overflow on animated trim paths #411
maven-enforcer	RequireFilesExist should accept a file reached through
jsoup	Add Elements.before(Node) and after/prepend/append(Node) #953
Feign	Skip bridge methods in contract parsing and map them for dispatch
retrofit.dart	serialize FlutterCompute @Body via toJson
mdn/browser-compat-data	Add css.types.color.from_currentcolor for relative color origin
form_builder_extra_fields	add a visual example gallery for extra fields #21
flutter_file_picker	Relax file_picker_linux dbus to ^0.7.13
melos	honor PUB_CACHE when generating IDE files
content	Remove incorrect private+no-store guidance from HTTP caching guide
retrofit.dart	detect generated toJson on Freezed models
mdn/browser-compat-data	VideoFrame.copyTo.format_property
Lithos UI	Toggle coverage for #124
freeCodeCamp	stray article in Toggle Text App

Open pull requests:

Project	PR
bsl-language-server	Add FAQ for PairingBrokenTransaction pairing vs early rollback #1277
a2a-java	link Javadoc from the README #287
gravitino	[#12492] docs: document jdbc.options for PostgreSQL plan_cache_mode
logging-log4j2	Honor spring.cloud.config.watch.enabled on Log4j2EventListener
maven-acr-plugin	Document Main-Class in the Application Client FAQ #61
maven-changes-plugin	Fail announcement templates on null Velocity values #130
maven-checkstyle-plugin	failsOnError should fail the build, not abort the report #656
maven-ejb-plugin	Fail when the EJB source directory cannot be created #195
maven-gpg-plugin	Clarify that sign-and-deploy-file uses Resolver POST
maven-help-plugin	Do not let effective-pom encoding fall back to null
maven-jar-plugin	Skip empty JARs when includes match no files #510
maven-resources-plugin	Restore mavenFilteringVersion for the usage page
maven-shade-plugin	Write an empty relativePath on dependency-reduced-pom.xml
maven-wrapper	Fail when only-script mvnw has no download tool #441
apicurio-registry	Remove unchecked generic varargs warning in unionOf #8905
awaitility/awaitility	Fix Predicate never tested when Callable returns null
docs	[amplify-libraries][Flutter] Document copyWithModelFieldValues for nu...
flutter_cache_manager	Await store.putFile so cache info is persisted #492
oblivion	how to share the proxy on the LAN #217
bytechef	Allow fullscreen on Gmail docs slideshows #2678
cowrie/cowrie	accept grep -m max-count
aibolit	#696: replace huge Java fixtures with inline examples
cucumber-expressions	Add a README to the .NET NuGet package #312
cucumber-jvm	Document Scenario.attach for screenshots
native	[jnigen] Expose editable documentation on the visitor API #3496
deephaven-core	add Raises descriptions for autocomplete #6164
docs	Document OIDC_LOGIN_BUTTON_TEXT on the frontend #6615
jkube	clarify oc:build defaults to cluster S2I #1528
eclipse.platform.ui	Relax LargeFileTest marker timing factor #2622
rdf4j	document gzip uploads on the Workbench add page
infinite_scroll_pagination	drop offstage new-page progress indicator
exist	[doc] Document recursive xmldb:create-collection() #3869
bloc	testing initial events
bloc	add prefer_bloc_provider
bloc	add avoid_missing_event_handlers
equatable	compare records with == in objectsEquals
mocktail	hint when previous when() is missing then*
mocktail	name the verified mock on call-count mismatch
get_it	Add optional ignoreIfNotRegistered to unregister #420
frankframework/frankframework	Document metrics export options in AppConstants
frostwire/frostwire	[android] Show disk-full error when a cloud download cannot be moved...
smooth_sheets	list real-world examples in the README #128
gauge-java	Add gauge_javac_args so javac can emit debug symbols #188
dagger	Clarify that enableAggregatingTask is on by default #5235
error-prone	Skip nested java.lang types in AvoidCommonTypeNames
json_serializable.dart	Use $enumEncode for non-nullable enum toJson lookups
json_serializable.dart	Prefix json_annotation helpers when imported with a prefix
pyrdp	replace dropped libgl1-mesa-glx with libgl1
gpx-animator/gpx-animator	Add a How to contribute section to the website #220
nowinandroid	point the README at Declarative Gradle #78
graphhopper/graphhopper	Use continue on when the street name stays
grimmory-docs	Clarify Bookdrop NFS/SMB watch limits (grimmory#485)
flutter_animate	Annotate Widget.animate() with @widgetFactory
hive_ce_docs	Update contacts tutorial to GenerateAdapters
hive_ce_samples	Use GenerateAdapters for the contacts sample
jetty.project	Document pemWorkDirectory on QuicheServerQuicConfiguration #12795
heralding	use configured HTTP banner as Server header
nexus	empty window is not a selector miss
build_verify	Add optional clean before expectBuildClean #22
peanut.dart	extra-args example in peanut.yaml #118
kotlinx.coroutines	Join backgroundScope after cancel in runTest
kroxylicious/kroxylicious	use clusterDefinitions instead of targetCluster #4277
patrol	report drag time on dragUntil timeouts #2103
armeria	Document the OAuth 2.0 client #5636
mage	Fix NPE when creature type choice is missing #14392
css-examples	put border-image-source last in CSS output
micrometer	Document @MeterTag when placed on a method
injectable	Add constructorCallback to generated micro package init
license-maven-plugin	Skip null dependency trail when excluding transitives #310
snare	build Docker image on Python 3.8
eo	#7988: name the missing map key in the error
apache-kafka-connect-docker	scrape Connect JMX with Prometheus #65
openaev	document notification triggers and asset-scoped filters
odd-platform	Add failed job/test status reason to alert chunk descriptions #1227
openremote/openremote	Show client secret length on the interconnect form #1365
security	Document demo installer password checks vs REST API settings #4081
plantuml/plantuml	Document missing Javadoc @param tags #2629
testcontainers-spring-boot	compare this project with official Testcontainers #1224
PMD	[java] ExhaustiveSwitchHasDefault: list missing cases in the violation
nessie	CEL filters for commit log, entries, and references #5325
slf4j	Pin fluent API caller method name in CallerInfoTest
ShellyElevate	add a bug report template to the README #23
reactor-core	Document that reactor-core-micrometer meters stay registered
robolectric/robolectric	Include post stack traces when tests fail with unexecuted runnables #...
rstudio/rstudio	debugSource warning when keep.source is FALSE #12375
pgpverify-maven-plugin	NPE when ProjectDependencyGraph is null #488
serverpod_docs	Add Google and Apple IDP admin operations pages
updater	refresh updater library architecture map
endlessh	optional Banner config line
pflag	Keep wrapping after an unbreakable usage word
spring-cloud-bus	Document RabbitMQ exclusive queue locator #249
spring-cloud-consul	Document spring.cloud.consul.config.prefixes #746
tut-spring-security-and-angular-js	Add a mocked JWT test for the resource server #23
Spring AI	Normalize advisor observation contextual names
spring-data-redis	Document setIfAbsent return value
spring-security	Document DaoAuthenticationProvider timing-attack mitigation
nextcloud-deck	Show a readable error when an attachment hits the server size limit #830
Linthra	add AppStream metainfo for software centres #435
tldr	add page
tldr	add page
trino-gateway	Replace deprecated MBeanExporter.unexportAll #864
fx	Add AsType generic wrapper over As
NullAway	Document MethodRef overload signatures in the sample library model #1016
uyuni	Document createOrUpdatePath permissions as a string #7968
flow	Improve AppShellConfigurator annotation error details (vaadin/hilla#231)
valkey-glide	move protobuf encode/decode tests to internals #3947
very_good_cli	resolve dart coverage package_config in pub workspaces
vyuh_node_flow	layering panel example for node stacking #10
lottie-flutter	use the dotLottie 2.0 animation path in the README decoder

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GitHub Stats

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