wireapp/wire-server
Oct 2024 – Jun 2026
20 Months active
Languages Used
HaskellYAMLNixPureScriptShellyamlMarkdownC
Technical Skills
Backend DevelopmentConfiguration ManagementSecurityTestingAPI DesignAPI Integration
Akshay Mankar
PROFILE
Akshay Mankar
Over 20 months, contributed to the wireapp/wire-server repository by designing and delivering 63 features and resolving critical bugs across authentication, messaging, and data migration domains. Focused on backend development using Haskell, PostgreSQL, and RabbitMQ, the work included modernizing authentication flows, implementing real-time WebSocket endpoints, and enabling seamless migration from Cassandra to PostgreSQL. Enhanced system reliability through robust error handling, observability improvements, and resilient CI/CD pipelines. Refactored core modules for maintainability, centralized data access, and improved test infrastructure. Emphasized security, scalability, and operational resilience, resulting in a more maintainable, performant, and secure backend platform for large-scale deployments.
Overall Statistics
Feature vs Bugs
90%Features
Repository Contributions
108Total
Bugs
7
Commits
108
Features
63
Lines of code
40,530
Activity Months20
Your Network
64 peopleSame Organization
@wire.com45
acv-wMember
Amit SagtaniMember
ap-ext-wireMember
Augusto César DiasMember
barisMember
Christoph AldrianMember
dariaoldenburgMember
David-HennerMember
Dusan StevanovicMember
Shared Repositories
19
Work History
June 2026
2 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for wireapp/wire-server: Delivered performance and reliability improvements to the ConversationStore migration workflow, with clearer locking guidance to ensure data integrity.
2 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for wireapp/wire-server: Delivered performance and reliability improvements to the ConversationStore migration workflow, with clearer locking guidance to ensure data integrity.
June 2026
May 2026
2 Commits • 1 Features
May 1, 2026May 2026 - Wire Server (wireapp/wire-server) focused on reliability, resilience, and maintainability. Delivered two major improvements that reduce outages and flaky tests while simplifying future work. Key outcomes include hardened backend error handling for ModService and robust PostgreSQL connection management with automatic reconnection and library upgrades.
May 2026
2 Commits • 1 Features
May 1, 2026May 2026 - Wire Server (wireapp/wire-server) focused on reliability, resilience, and maintainability. Delivered two major improvements that reduce outages and flaky tests while simplifying future work. Key outcomes include hardened backend error handling for ModService and robust PostgreSQL connection management with automatic reconnection and library upgrades.
April 2026
4 Commits • 3 Features
Apr 1, 2026April 2026 (wire-server) monthly summary focusing on reliability, performance, and migration readiness. Delivered three key features: (1) Resilient indexing and migration readiness, which prevents failures when user documents fail to build, enhances progress logging, simplifies dependencies, and lays groundwork for PostgreSQL data migration without disrupting current functionality; (2) Conversation indexing optimization with non-transactional migrations, introducing an index on parent_conv to speed up deletions and enabling non-transactional index creation; (3) Migration locking and deadlock prevention, ensuring only one migration runs at a time and refactoring to avoid deadlocks during concurrent index creation.
4 Commits • 3 Features
Apr 1, 2026April 2026 (wire-server) monthly summary focusing on reliability, performance, and migration readiness. Delivered three key features: (1) Resilient indexing and migration readiness, which prevents failures when user documents fail to build, enhances progress logging, simplifies dependencies, and lays groundwork for PostgreSQL data migration without disrupting current functionality; (2) Conversation indexing optimization with non-transactional migrations, introducing an index on parent_conv to speed up deletions and enabling non-transactional index creation; (3) Migration locking and deadlock prevention, ensuring only one migration runs at a time and refactoring to avoid deadlocks during concurrent index creation.
April 2026
March 2026
9 Commits • 3 Features
Mar 1, 2026March 2026 delivered architectural refinement, testing improvements, and CI/build hardening for wire-server, delivering stronger modularity, security, and deployment reliability. Key architectural refactors consolidated user activity timestamp management in ClientStore, introduced ClientSubsystem, centralized password handling in UserStore, and removed unnecessary interpretation in background workers, reducing cross-component coupling and maintenance burden. Testing infrastructure was upgraded with subsystem mocks and visibility controls, and integration tests were migrated to a dedicated integration suite to improve isolation and accuracy. CI and migration workflows were hardened by fixing the ci-safe Makefile target, removing an unnecessary compilation flag, and enabling configurable PostgreSQL settings for Elasticsearch data migrations, enabling safer and faster deployments. These changes collectively translate to faster delivery cycles, fewer defects, and clearer ownership across authentication and user-management domains.
March 2026
9 Commits • 3 Features
Mar 1, 2026March 2026 delivered architectural refinement, testing improvements, and CI/build hardening for wire-server, delivering stronger modularity, security, and deployment reliability. Key architectural refactors consolidated user activity timestamp management in ClientStore, introduced ClientSubsystem, centralized password handling in UserStore, and removed unnecessary interpretation in background workers, reducing cross-component coupling and maintenance burden. Testing infrastructure was upgraded with subsystem mocks and visibility controls, and integration tests were migrated to a dedicated integration suite to improve isolation and accuracy. CI and migration workflows were hardened by fixing the ci-safe Makefile target, removing an unnecessary compilation flag, and enabling configurable PostgreSQL settings for Elasticsearch data migrations, enabling safer and faster deployments. These changes collectively translate to faster delivery cycles, fewer defects, and clearer ownership across authentication and user-management domains.
February 2026
11 Commits • 5 Features
Feb 1, 2026February 2026 monthly summary for wire-server: Delivered major real-time communication enhancements, reinforced reliability, and refactored core data and test infrastructure to support scalable, cross-database operations. Focused on business value through performance, maintainability, observability, and cross-version testing.
11 Commits • 5 Features
Feb 1, 2026February 2026 monthly summary for wire-server: Delivered major real-time communication enhancements, reinforced reliability, and refactored core data and test infrastructure to support scalable, cross-database operations. Focused on business value through performance, maintainability, observability, and cross-version testing.
February 2026
January 2026
8 Commits • 2 Features
Jan 1, 2026January 2026 — Wire-server: Delivered infrastructure and data-layer improvements that stabilize builds, accelerate development, and improve runtime responsiveness. Implemented Haskell build system modernization with Nix flakes, updated Cabal compatibility, refined HLS workflow, disabled obsolete plugins, and corrected tom-bombadil URL for reliable inputs. Replaced niv with flakes for reproducible environments and integrated tom-bombadil as a flake input to unify dependency pinning. Migrated user-related DB operations to a centralized UserStore, refined Postgres type derivations, and adjusted HTTP idle timeout to 30s to reduce perceived latency. These changes reduce build drift, speed up CI, and improve server responsiveness and maintainability. Demonstrated capabilities in Haskell tooling, Nix-based infrastructure, and PostgreSQL-backed data layer.
January 2026
8 Commits • 2 Features
Jan 1, 2026January 2026 — Wire-server: Delivered infrastructure and data-layer improvements that stabilize builds, accelerate development, and improve runtime responsiveness. Implemented Haskell build system modernization with Nix flakes, updated Cabal compatibility, refined HLS workflow, disabled obsolete plugins, and corrected tom-bombadil URL for reliable inputs. Replaced niv with flakes for reproducible environments and integrated tom-bombadil as a flake input to unify dependency pinning. Migrated user-related DB operations to a centralized UserStore, refined Postgres type derivations, and adjusted HTTP idle timeout to 30s to reduce perceived latency. These changes reduce build drift, speed up CI, and improve server responsiveness and maintainability. Demonstrated capabilities in Haskell tooling, Nix-based infrastructure, and PostgreSQL-backed data layer.
December 2025
9 Commits • 3 Features
Dec 1, 2025December 2025 monthly summary for wire-server focusing on stability, throughput, and maintainability. Key outcomes include migration workflow enhancements with configurable page size and parallelism, optimized member queries, reduced GC grace period, and added observability for failed migrations; API stability improvements guaranteeing URI in responses and versioned /register handling via nginz; and schema simplification by removing redundant constraints. These changes improve migration performance, reduce post-migration troubleshooting, enhance client-facing API stability, and lower maintenance burden. Technologies involved include PostgreSQL query optimization, session-based multi-statement execution, GC tuning, logging/metrics, and nginz-based versioned API routing.
9 Commits • 3 Features
Dec 1, 2025December 2025 monthly summary for wire-server focusing on stability, throughput, and maintainability. Key outcomes include migration workflow enhancements with configurable page size and parallelism, optimized member queries, reduced GC grace period, and added observability for failed migrations; API stability improvements guaranteeing URI in responses and versioned /register handling via nginz; and schema simplification by removing redundant constraints. These changes improve migration performance, reduce post-migration troubleshooting, enhance client-facing API stability, and lower maintenance burden. Technologies involved include PostgreSQL query optimization, session-based multi-statement execution, GC tuning, logging/metrics, and nginz-based versioned API routing.
December 2025
November 2025
6 Commits • 4 Features
Nov 1, 2025November 2025 monthly summary for wire-server focused on strengthening data integrity, migration readiness, observability, and security. Delivered concrete features, fixed critical data issues, and advanced operational capabilities that create measurable business value.
November 2025
6 Commits • 4 Features
Nov 1, 2025November 2025 monthly summary for wire-server focused on strengthening data integrity, migration readiness, observability, and security. Delivered concrete features, fixed critical data issues, and advanced operational capabilities that create measurable business value.
October 2025
2 Commits • 2 Features
Oct 1, 2025Concise monthly summary for 2025-10 focusing on features delivered, major bug fixes, impact, and skills demonstrated for wire-server work.
2 Commits • 2 Features
Oct 1, 2025Concise monthly summary for 2025-10 focusing on features delivered, major bug fixes, impact, and skills demonstrated for wire-server work.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 focused on refactoring and centralizing Postgres marshalling to improve reliability, maintainability, and accessibility across wire-server. Completed the relocation of core marshalling primitives to wire-api, clarified module boundaries, and started enabling robust error reporting and support for complex data structures.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 focused on refactoring and centralizing Postgres marshalling to improve reliability, maintainability, and accessibility across wire-server. Completed the relocation of core marshalling primitives to wire-api, clarified module boundaries, and started enabling robust error reporting and support for complex data structures.
August 2025
5 Commits • 3 Features
Aug 1, 2025Monthly summary for 2025-08 for wireapp/wire-server. Focused on delivering a more reliable messaging backbone, correctness of notification delivery, architectural consolidation for maintainability, and improvements to testing infrastructure. The month produced tangible business value by increasing message durability, reducing invalid notifications, centralizing subsystem access, and improving test resilience.
5 Commits • 3 Features
Aug 1, 2025Monthly summary for 2025-08 for wireapp/wire-server. Focused on delivering a more reliable messaging backbone, correctness of notification delivery, architectural consolidation for maintainability, and improvements to testing infrastructure. The month produced tangible business value by increasing message durability, reducing invalid notifications, centralizing subsystem access, and improving test resilience.
August 2025
July 2025
14 Commits • 10 Features
Jul 1, 2025July 2025 highlights for wire-server: Delivered high-impact features and reliability improvements across the stack, enabling safer API migrations, improved observability, and more scalable CI/CD. Key outcomes include robust synchronization signaling for Cannon Service, exposure of time endpoints and enhanced Nginx proxy handling, API versioning upgrade with an alias, cleanup of deprecated config, and substantial infrastructure improvements for testing and deployment. These changes improve system reliability, time accuracy, developer productivity, and platform scalability, contributing to faster delivery cycles and better customer experience.
July 2025
14 Commits • 10 Features
Jul 1, 2025July 2025 highlights for wire-server: Delivered high-impact features and reliability improvements across the stack, enabling safer API migrations, improved observability, and more scalable CI/CD. Key outcomes include robust synchronization signaling for Cannon Service, exposure of time endpoints and enhanced Nginx proxy handling, API versioning upgrade with an alias, cleanup of deprecated config, and substantial infrastructure improvements for testing and deployment. These changes improve system reliability, time accuracy, developer productivity, and platform scalability, contributing to faster delivery cycles and better customer experience.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for wire-server: Delivered two key features enhancing security, scalability, and client readiness. No major bugs fixed in this period. The work strengthens authentication, improves support for AWS-based integrations, and increases reliability of push communications for capable clients, contributing to platform reliability and partner satisfaction. Technologies demonstrated include Nginx module integration, AWS Signature Version 4 token parsing and Z-Timestamp exposure, and a refactored push notification pipeline with updated tests.
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for wire-server: Delivered two key features enhancing security, scalability, and client readiness. No major bugs fixed in this period. The work strengthens authentication, improves support for AWS-based integrations, and increases reliability of push communications for capable clients, contributing to platform reliability and partner satisfaction. Technologies demonstrated include Nginx module integration, AWS Signature Version 4 token parsing and Z-Timestamp exposure, and a refactored push notification pipeline with updated tests.
June 2025
May 2025
3 Commits • 1 Features
May 1, 2025May 2025: Improved reliability and observability in wire-server by delivering targeted diagnostics, reducing configuration debt, and strengthening inter-service resilience. The changes enhance visibility into client message handling, simplify MLS configuration, and improve tracing and retry behavior across Galley service calls. Overall, effort reduces incident investigation time, accelerates issue resolution, and supports more robust service orchestration.
May 2025
3 Commits • 1 Features
May 1, 2025May 2025: Improved reliability and observability in wire-server by delivering targeted diagnostics, reducing configuration debt, and strengthening inter-service resilience. The changes enhance visibility into client message handling, simplify MLS configuration, and improve tracing and retry behavior across Galley service calls. Overall, effort reduces incident investigation time, accelerates issue resolution, and supports more robust service orchestration.
April 2025
5 Commits • 4 Features
Apr 1, 2025Month: 2025-04 — Concise monthly summary highlighting key business and technical outcomes across the wire-server repository. Focused on delivering core features, hardening critical auth flows, enabling real-time capabilities, and improving observability and federation readiness.
5 Commits • 4 Features
Apr 1, 2025Month: 2025-04 — Concise monthly summary highlighting key business and technical outcomes across the wire-server repository. Focused on delivering core features, hardening critical auth flows, enabling real-time capabilities, and improving observability and federation readiness.
April 2025
February 2025
3 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary focusing on security, search infrastructure, and performance hardening for wireapp/wire-server. Delivered domain ownership enforcement to prevent unauthorized registrations, added OpenSearch compatibility with multi-engine support for flexible deployment, and implemented password hashing rate limiting with centralized wiring for improved security and operational reliability. These changes reduce risk, strengthen brand integrity, and enable scalable, resilient infrastructure.
February 2025
3 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary focusing on security, search infrastructure, and performance hardening for wireapp/wire-server. Delivered domain ownership enforcement to prevent unauthorized registrations, added OpenSearch compatibility with multi-engine support for flexible deployment, and implemented password hashing rate limiting with centralized wiring for improved security and operational reliability. These changes reduce risk, strengthen brand integrity, and enable scalable, resilient infrastructure.
January 2025
10 Commits • 5 Features
Jan 1, 2025January 2025 highlights several reliability and performance improvements across wire-server: robust signal handling, WebSocket stability, dynamic backend test reliability, deployment hygiene, and enterprise login refactor. These changes reduce resource leaks, flaky tests, and deployment risk while enabling faster, safer releases.
10 Commits • 5 Features
Jan 1, 2025January 2025 highlights several reliability and performance improvements across wire-server: robust signal handling, WebSocket stability, dynamic backend test reliability, deployment hygiene, and enterprise login refactor. These changes reduce resource leaks, flaky tests, and deployment risk while enabling faster, safer releases.
January 2025
December 2024
6 Commits • 5 Features
Dec 1, 2024December 2024 in wire-server focused on strengthening API correctness, reliability, and observability. Delivered version-aware API improvements for client capabilities, aligned SCIM authentication token API with v8, stabilized critical tests, and enhanced testing infrastructure and logging to reduce downtime and support faster debugging. These efforts reduce API drift, improve client integration reliability, and strengthen incident resolution by improving traceability and port/dynamic backend handling.
December 2024
6 Commits • 5 Features
Dec 1, 2024December 2024 in wire-server focused on strengthening API correctness, reliability, and observability. Delivered version-aware API improvements for client capabilities, aligned SCIM authentication token API with v8, stabilized critical tests, and enhanced testing infrastructure and logging to reduce downtime and support faster debugging. These efforts reduce API drift, improve client integration reliability, and strengthen incident resolution by improving traceability and port/dynamic backend handling.
November 2024
4 Commits • 4 Features
Nov 1, 2024Summary for 2024-11: Delivered key features that improve performance, scalability, and maintainability of wire-server. Key deliveries: 1) Bulk Retrieval of Team Feature Configurations (reduces DB load; single bulk query); 2) Galley Service Cleanup removing an unused endpoint and its tests; 3) MLS State Management Refactor enabling multi-conversation support via ConvId; 4) Backend Queue Listing Optimization for Notifications with regex filtering to reduce queue iteration. No major bugs fixed this month. Overall impact: lower database load, faster feature config access, cleaner service surface, and better multi-conversation support and background processing. Technologies demonstrated: DB optimization, service cleanup and tests, state management refactor, RabbitMQ handling, and test maintenance.
4 Commits • 4 Features
Nov 1, 2024Summary for 2024-11: Delivered key features that improve performance, scalability, and maintainability of wire-server. Key deliveries: 1) Bulk Retrieval of Team Feature Configurations (reduces DB load; single bulk query); 2) Galley Service Cleanup removing an unused endpoint and its tests; 3) MLS State Management Refactor enabling multi-conversation support via ConvId; 4) Backend Queue Listing Optimization for Notifications with regex filtering to reduce queue iteration. No major bugs fixed this month. Overall impact: lower database load, faster feature config access, cleaner service surface, and better multi-conversation support and background processing. Technologies demonstrated: DB optimization, service cleanup and tests, state management refactor, RabbitMQ handling, and test maintenance.
November 2024
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for wire-server: Implemented configurable password hashing algorithm switch between argon2id and scrypt, with migration strategy and backward compatibility to improve security with minimal disruption. The change includes updated configuration, documentation, and integration tests, enabling safer upgrades and future-proofing authentication storage. Commit: d3155976672edb2f554de8c24394b7a509a2a75d (Allow choosing between argon2id and scrypt as hashing algorithm (#4319)).
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for wire-server: Implemented configurable password hashing algorithm switch between argon2id and scrypt, with migration strategy and backward compatibility to improve security with minimal disruption. The change includes updated configuration, documentation, and integration tests, enabling safer upgrades and future-proofing authentication storage. Commit: d3155976672edb2f554de8c24394b7a509a2a75d (Allow choosing between argon2id and scrypt as hashing algorithm (#4319)).
Activity
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Quality Metrics
Correctness90.0%
Maintainability85.8%
Architecture87.4%
Performance83.2%
AI Usage23.2%
Skills & Technologies
Programming Languages
BashCGoGo templatingHaskellMakefileMarkdownNginxNixPureScript
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI VersioningAPI designAPI developmentAWS DynamoDBAWS Signature V4AuthenticationBackend DevelopmentBuild system configurationCI/CDCabalCassandraCode Cleanup
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline