Portrait of Selçuk Cihan

PORTRAIT / SOURCE PROFILE

Contact sheet / selected systems

Selçuk Cihan

Senior Software Engineer | Backend, Platform & Cloud

Senior software engineer with 17+ years of experience building distributed systems.

Former Amazon Software Development Engineer with hands-on experience across Node.js, Python, AWS, GCP, serverless architectures and observability.

Trusted in multi-year remote contracts to own ambiguous problems from architecture and implementation to operations and mentoring. Based in Istanbul (UTC+3).

Roll 01 / field evidence

Systems in use

Select a frame to inspect the context and implementation notes.

01 RTIC Outdoors Senior Software Engineer 2023 - 2026 View evidence

Implementation index

RTIC Outdoors ↗
  • Scala
  • Spring
  • Kubernetes
  • Postgres
  • Google Cloud
  • DataDog

Field notes / outcomes

Created mobile device management tools to support warehouse ops, reducing manual device setup and improving reliability across Android-based workflows.

Automated warehouse operations such as processing returns, customization of products and workflows, resulting in more efficient use of resources.

Expanded backend observability, giving engineering & operations teams more visibility into failures affecting warehouse.

02 Serverless Inc. Senior Software Engineer 2022 - 2023 View evidence

Implementation index

Serverless Inc. ↗
  • Python
  • Serverless
  • Lambda
  • AWS

Field notes / outcomes

Created the Python AWS Lambda SDK for Serverless Console, an observability platform for applications running on AWS Lambda.

Owned release coordination & backward compatibility of the SDK, supporting dependable adoption among customers.

03 Tellimer Senior Software Engineer 2019 - 2022 View evidence

Implementation index

Tellimer ↗
  • TypeScript
  • Python
  • Serverless
  • Lambda
  • API Gateway
  • DynamoDB
  • Stripe
  • EventBridge
  • AppSync
  • Cognito
  • Datadog
  • Node.js

Field notes / outcomes

Created serverless backends on AWS using Node.js & Python for multiple products, including a machine-learning SAAS application and a substack-like platform for financial writers.

Designed customer-facing GraphQL APIs, serverless execution orchestration, data-ingestion workflows and priority-queue services for mission-critical financial products.

Delivered analytics, article recommendation, summarization, and automated sitemap capabilities for customer-facing products on tellimer.com

Led architecture/design sessions, clarified ambiguous requirements, mentored engineers and reviewed technical documentation.

Improved production monitoring & operational excellence across distributed systems.

04 Toptal Senior Software Engineer 2018 - 2019 View evidence

Implementation index

Toptal ↗
  • Python
  • Serverless
  • Lambda
  • API Gateway
  • DynamoDB
  • VPC
  • SQS
  • CloudWatch
  • S3
  • CloudFront

Field notes / outcomes

Developed a public facing REST API, fully serverless on AWS, serving hundreds of thousands of customers.

Reduced AWS bill by more than 50% through architecture and resource-usage optimizations.

Mentored developers and reviewed design documents for reliability & maintainability.

05 Amazon Software Development Engineer 2017 - 2018 View evidence

Implementation index

Amazon ↗
  • Python
  • Distributed Systems
  • AWS
  • Java
  • DynamoDB
  • Service Orchestration
  • SQS
  • CloudWatch
  • S3
  • Kinesis

Field notes / outcomes

Developed and maintained the orchestration platform that powers Amazon’s product catalog.

Executed zero-downtime migrations across several web services and retired legacy services that constrained catalog growth.

06 Intertech Senior Software Engineer 2013 - 2017 View evidence

Implementation index

Intertech ↗
  • Microsoft .Net
  • C#
  • MSSQL
  • ElasticSearch
  • JavaScript

Field notes / outcomes

Supported the workflow engine serving banking applications such as loans, customer complaints etc.

Designed a workforce management system that empowers the bank’s operation center.

07 Ziraat Teknoloji Software Development Engineer 2011 - 2013 View evidence

Implementation index

Ziraat Teknoloji ↗
  • Microsoft .NET
  • C#
  • WinForms
  • WPF
  • Oracle

Field notes / outcomes

Implemented workflow engine running on top of Oracle, serving over 100,000 workflow instances daily.

Served as scrum master and mentored junior developers.

08 AirTies Software Development Engineer 2009 - 2010 View evidence

Implementation index

AirTies ↗
  • C
  • C++
  • Embedded Linux
  • RTSP
  • Teletext
  • IPTV

Field notes / outcomes

Developed solutions for IPTV products in C & C++.

Implemented teletext and RTSP parsers along with closed captioning and subtitles for IPTV.

Roll 02 / supporting material

Working notes

Bench inventory

Skills

  1. TypeScript
  2. Node.js
  3. Python
  4. Java/Scala
  5. SQL/NoSQL
  6. REST/GraphQL
  7. AWS
  8. GCP
  9. Cloudflare
  10. Serverless
  11. Distributed Systems
  12. React

Archive A

Education

BS. & MS. in Computer Science

Boğaziçi University

Archive B

Certifications

AWS Certified Solutions Architect - Professional

Amazon Web Services

Witness marks

From the field

“I've been most impressed by his exceptional ability to tackle every phase of software development with in-depth knowledge, confidence and clear communication. I cannot emphasize enough how good Selcuk is at communicating in a clear and structured manner.”
Daniel VliegenthartTeam Lead, Tellimer
“He was the perfect remote contractor in many ways. His communication skills are top, he is very much a self-starter who can get stuck in on work with minimal guidance or oversight, and his code quality (and documentation!) is exceptional.”
Ian WattCo-founder, Tellimer
“Selçuk is a quick learner, he approaches problems systematically and understands the business and customer needs. He is very detail-oriented, and a hard worker. You can trust him with the most challenging issues.”
Erdem KurulSoftware Development Manager, Intertech
“I had the pleasure to manage and to work with Selcuk Cihan for the past 2 years while at Tellimer. He rose brilliantly to all challenges thrown at him both technically and communication wise. I would say his superpower is his communications skills, both writing and talking.”
Decebal DobricaSoftware Architect, Tellimer