Senior Software Engineer · .NET Backend & Distributed Systems
Building reliable backend systems through production change.
At Okala, I have owned delivery of two production-platform replacements across fulfillment and delivery operations. My work combines .NET, Kafka and SQL Server with production reliability and technical mentoring. Based in Tehran and open to EU relocation.
Senior Software Engineer · Okala (Golrang Industrial Group), Tehran
Okala is an online grocery platform handling 150K+ orders daily and over 300K during campaigns. My work spans fulfillment, logistics, and delivery operations. The projects below cover both roles, including shared delivery with the team.
I owned the replacement of two live platforms, first fulfillment and then delivery: building their replacements, migrating every operational flow, and retiring both legacy systems. Following the migration from Windows Server to containerised services on Kubernetes, production incidents became rare, down from almost daily.
With the team, I built a platform with four independently deployable .NET 10 services and around 200 versioned REST endpoints. Four versions of the store API run side by side to support existing clients.
I designed a rules engine to replace manual store delivery-radius configuration, using time of day, weather, and pending-order backlog. Repartitioning Kafka events by store preserves per-store ordering and avoids contention on a shared database table.
I built delivery coverage and nearby-store search with SQL Server spatial types and NetTopologySuite: delivery radii, exclusion polygons, and distance-ranked results.
I led work on a 40-topic Kafka event backbone with at-least-once delivery and per-entity ordering. Reliability measures include consumer retries with backoff, a persisted transactional outbox, and Redis-based customer-notification deduplication across service replicas.
I built an integration harness that runs real SQL Server and Redis containers, hosts two ASP.NET Core applications, and exercises them over HTTP. Tests run in parallel GitLab CI jobs. Prometheus metrics and distributed tracing support diagnosis across all four production services.
Alongside implementation, I define engineering standards and mentor junior and mid-level engineers through code reviews, design discussions and technical problem-solving.
Context. Okala’s fulfillment and delivery operations ran on existing production systems. My work involved building their replacements, moving operational workflows and retiring the predecessors.
My responsibility. I owned execution of the fulfillment replacement during my Software Engineer role, then the delivery replacement as a Senior Software Engineer. The wider delivery platform was built with the team.
Implementation. The current delivery platform comprises four independently deployable .NET services. Its APIs support four concurrent store API versions. I led the Kafka event-backbone work, using business-entity keys for per-entity ordering, with at-least-once delivery, retries and notification deduplication.
Verification and operations. I built integration tests using real SQL Server and Redis containers and two ASP.NET Core hosts. Metrics and distributed tracing support production diagnosis across the services.
Outcome. Both predecessor platforms were retired after their workflows migrated. Following the move from Windows Server to Kubernetes, production incidents became rare, down from almost daily.
I have built commercial backend systems since 2018, working on the services that support everyday commerce and delivery.
My work spans implementation, production migrations and operational support. I also mentor engineers through code reviews and design discussions. I hold an M.Sc. in Artificial Intelligence; my research on transfer learning for reinforcement learning led to a co-authored journal publication.
Outside engineering, I play Persian percussion and string instruments. Music is a lasting part of my life alongside software.
Persian percussion and string traditions, starting with fifteen years behind a daf.
Primary instrument · 15 years
Frame drum at the heart of Sufi and folk repertoire. The constant thread from early TV performances in Semnan Province to concert stages in Tehran.
Since 2018
Long-necked lute carrying the melodic modes (dastgāh) of Persian classical music.
Since 2023
The principal goblet drum of Persian classical music; intricate finger technique and meter.
Currently learning · since 2025
A quieter, four-stringed relative of the tar, central to solo and mystical repertoire.
From the concert archive
Two posters from my concerts with the Foroozan Ensemble.
Vahdat Hall · 22 Mordad 1398
Aseman Cultural and Arts Complex · 3 Esfand 1402
Dates follow the Persian calendar.
Research in the Multi-Agent Systems Lab on transfer learning for reinforcement learning, applied to traffic-signal control.
A working notebook — things I learned, things I built, and papers I went down a rabbit hole on.
Based in Tehran and open to relocation to the EU for senior backend/.NET roles.