Senior software engineer (13+ years) with hands-on AI development experience, including architecting and shipping production-grade agentic systems, data pipelines, and voice AI agents. Deep backend foundation across Java, Scala, Python, Go, TypeScript, etc., with end-to-end ownership from R&D through production delivery. I ship, own, and deliver—often as the sole engineer—building distributed, event-driven workflow orchestration and large-scale data platforms. I’m seeking Mid/Senior+ roles in AI-focused or AI-adjacent engineering with maximum personal latitude.

Sofia Athenikos

Senior software engineer (13+ years) with hands-on AI development experience, including architecting and shipping production-grade agentic systems, data pipelines, and voice AI agents. Deep backend foundation across Java, Scala, Python, Go, TypeScript, etc., with end-to-end ownership from R&D through production delivery. I ship, own, and deliver—often as the sole engineer—building distributed, event-driven workflow orchestration and large-scale data platforms. I’m seeking Mid/Senior+ roles in AI-focused or AI-adjacent engineering with maximum personal latitude.

Available to hire

Senior software engineer (13+ years) with hands-on AI development experience, including architecting and shipping production-grade agentic systems, data pipelines, and voice AI agents. Deep backend foundation across Java, Scala, Python, Go, TypeScript, etc., with end-to-end ownership from R&D through production delivery.

I ship, own, and deliver—often as the sole engineer—building distributed, event-driven workflow orchestration and large-scale data platforms. I’m seeking Mid/Senior+ roles in AI-focused or AI-adjacent engineering with maximum personal latitude.

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Work Experience

Founder & Software Engineer at AthenikosCards
May 1, 2026 - Present
Built and launched a commercial AI-driven greeting card platform end-to-end in ~13 hours across 5 days, including web app, AI image generation, persistence, email delivery, and Stripe payments. Implemented Next.js/React/TypeScript UI, OpenAI image generation with a prompt-engineered variation system (11,200+ combinations), Supabase persistence, Resend email delivery with domain verification, and Stripe webhook-driven premium provisioning and rate limiting. Added analytics/SEO instrumentation and shipped a production-ready user flow for card generation, review, and delivery.
Principal Software Engineer at RR Donnelley
July 1, 2024 - January 31, 2026
Owned high-priority R&D/engineering delivery as a core member of a small team. Architected an agentic retail analytics data pipeline (nCountR) with stepwise agent chaining, journey correlation logic using F1 and cosine similarity, and journey visualization—moving from proof-of-concept to production-ready implementation. Continued sole ownership of an event-driven Reactive Platform for distributed workflow orchestration and execution, including observability improvements (Grafana/Graphite/OpenTelemetry) to reduce debugging and improve reliability.
Principal Software Engineer at Vericast
May 1, 2023 - July 1, 2024
Led R&D into product roadmap and drove systems to full implementation as one of two principal engineers. Architected and engineered a Reactive Platform: event-driven distributed workflow orchestration with services for event generation, batching, processing, and an overseer plus client utilities and configuration UI—designed to replace legacy batch processing and reduce latency for thousands of daily jobs. Built the HDFS Image Analyzer CLI to scan large HDFS datasets (~8M files), apply user predicates, and generate archival recommendation reports used in production to manage storage costs and eliminate manual cleanup.
Sr. Software Engineer at Twitter
October 1, 2019 - February 28, 2023
Worked on core infrastructure reliability and performance engineering. Solo-designed and implemented Dark Traffic Proxy (DTP), a production traffic shadowing service (Scala) that modernized legacy components and was officially designated as the recommended service; onboarded 100+ internal engineering teams to production. Refactored Perfy and RedCurve performance/testing services with added capabilities such as health checks, encryption, dynamic target instance lookup, richer metrics/dashboards, and improved notification workflows. Created shared libraries by refactoring duplicated logic across services to improve maintainability.
Associate (Senior Software Engineer) at Morgan Stanley
June 1, 2018 - October 1, 2019
Built an automated real-time pricing system component for equity derivative trading. Implemented a KDB client service with reader/writer/mapper/logging infrastructure, along with REST API endpoints for storing and retrieving diagnostics and pricing/testing data in KDB. Added pricing-context re-allocation logic to improve reuse of computational context, devised a diagnostics data exchange format (XML/JSON), implemented mappings for internal third-party consumption, and supported parameter override mechanisms for repricing and enhancements.
Consultant (Senior Software Engineer) at Bank of America Merrill Lynch
May 1, 2017 - March 31, 2018
Sole-engineer engagement for Equity Linked Technology data restructuring and migration. Restructured role-based access (RBA) entitlement data from a flat list into a hierarchical model and built a bidirectional sync pipeline to eliminate UI/service/database inconsistency risk. Devised and executed a 50+ step, two-day production migration with zero data loss and no production disruption; delivered full project in 10 months and incorporated additional stakeholder enhancements on an irreversible change.
Consultant (Senior Software Engineer) at Bloomberg
December 1, 2016 - March 31, 2017
Worked on entity tagging, personalization, and recommendation backend systems powering consumer media products. Extended tagging/personalization/recommendation logic to support new tag types, revised ingestion pipelines to add new sources, and refactored the tagging system to accommodate terminology evolution while improving clarity and consistency across the codebase.
Software Engineer at Flipboard
November 1, 2015 - November 1, 2016
Built and rewrote multiple core components of Flipboard’s content extraction stack for ingesting/parsing/normalizing heterogeneous sources (web, news, blogs, social, RSS, PDFs) into a delivery-ready format. Implemented extraction microservice and core extraction package with parsing/extraction/quality rules, added schema/validation microservice, and rebuilt config/management services with Git-based file management via JGit. Created supporting tooling including PDF to HTML handling, concurrent async test client, and cross-version regression validators; drove proactive deep refactoring to enable safer extension of critical product logic.
R&D Engineer (Amelia AI) at IPsoft
October 1, 2013 - May 1, 2015
Built engineering infrastructure for Amelia, an AI/NLP virtual customer service agent, focusing on conversation workflow execution and semantic knowledge management. Developed and maintained a BPM module representing each conversation as a graph with lifecycle management (creation/execution/management) and algorithms for conversational workflow execution (answer-type handling, multiple-choice handling, and graph merging). Authored inference rules over a semantic knowledge base (entities/relationships/inference) to improve derived facts during conversations. Collaborated on R&D direction by studying and adapting research papers into implementable enhancements.
Software Development Engineer at Amazon (Amazon Marketing Services)
June 1, 2012 - July 1, 2013
Founding member of a New York team launching Amazon Marketing Services advertising platform for sellers. Contributed to multi-tier Java/Spring backend services for Amazon Posts and Analytics with AWS-backed storage (S3/RDS) and a JS/jQuery frontend. Designed and maintained public-facing REST APIs within an API-focused subgroup. Proactively refactored and reorganized the codebase using clean separation of responsibilities to improve maintainability and extensibility.

Education

Ph.D., Information Science at Drexel University
January 1, 2010 - July 16, 2026
M.S., Computer Science at Drexel University
January 11, 2030 - July 16, 2026
Ph.D., Philosophy at Temple University
January 11, 2030 - July 16, 2026
M.A., Religion at Temple University
January 11, 2030 - July 16, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Media & Entertainment, Retail, Healthcare, Other