I’m looking for a software engineering role focused on Rust or Python, building backend services, distributed systems, or applied ML products. I value clear technical communication, code review, and ownership from design to delivery. Based in Belgrade, Serbia, I’m keen to deepen my expertise and take on broader responsibility.
Looking for a job
Dmitry Usakov
@dmitryusakov
Software engineer building Rust backends, including Caffeine’s geosocial platform and an AST-based OpenAPI generator.
SerbiaWhat I'm looking for
At Noldor Solutions — Caffeine, I built core backend services in Rust for a geosocial platform connecting coffee shops, roasteries, and coffee lovers. The REST APIs supported the launch of web and mobile clients for around 1,000 initial users.
I standardized client-to-service API contracts with OpenAPI, reducing integration bugs by about 30%. I also designed a dynamic forms engine using a polymorphic PostgreSQL schema.
On my open-source project gridstack, I engineered a Rust Matrix-compatible homeserver backend with custom authentication and continuous sync event streaming, load-tested for 500+ concurrent connections. I implemented rate-limited JWT logins and transactional event persistence with DAG consistency checks.
I also developed an AST-based OpenAPI generator that derives API contracts from Rust source code, saving about 10 hours of manual documentation each month. In AutoSnap, I productized a TensorFlow/EfficientNet classifier as a FastAPI service for car recognition across 196 classes.
Experience
Work history, roles, and key accomplishments
AU
Software Engineer & ML
AutoSnap
Sep 2026 - Sep 2026 (0 months)
Productized a TensorFlow/EfficientNet classifier into a FastAPI service, enabling car recognition across 196 classes with confidence-based rejection and price-range lookup. Designed a process-wide model lifecycle and delivered the complete inference flow via a Gradio UI and a multi-stage Docker image.
GR
Software Engineer
gridstack
Apr 2026 - Jul 2026 (3 months)
Engineered a non-federated Matrix Client-Server API in Rust, supporting core specs, custom auth, and continuous sync event streaming load-tested for 500+ concurrent connections. Secured authentication with rate-limited JWT logins and session isolation, and engineered transactional event persistence with DAG consistency checks.
HH
Navigation Systems Engineer
Higher League Robotics Hackathon
Jan 2024 - Dec 2024 (11 months)
Designed and tuned a Python/ROS 2 path-tracking system with PID control, integrating navigation with hardware and computer-vision components. Improved trajectory stability and reduced route completion time by ~15%, contributing to the team's second place.
NS
Software Engineer
Noldor Solutions
Feb 2023 - Feb 2024 (1 year)
Built core backend services from scratch using Rust (Axum, Tokio), delivering REST APIs that supported the launch of web and mobile clients for ~1,000 initial users. Standardized client-to-service API contracts using OpenAPI, reducing integration bugs by ~30% and accelerating new feature development.
Education
Degrees, certifications, and relevant coursework
RA
RANEPA
Bachelor of Science, Applied Informatics in Information Security
2022 -
Pursuing a Bachelor of Science in Applied Informatics in Information Security at RANEPA from 2022 to 2026.
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
SerbiaAuthorized to work in
Salary expectations
30k+ EUR
Job categories
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