What we're looking for
The Software Team at Smartex is committed to revolutionizing the textile industry through the development of cutting-edge software and AI solutions. We are a diverse and international company with a strong mission to make a positive impact on both our industry and the planet.
We are looking for a highly-skilled & experienced Senior Software Engineer to join our talented team. The ideal candidate will play a pivotal role in the design, development, and optimization of software services for industrial applications. This position will work closely with our Backend, Product, DevOps, and QA teams to deliver reliable, maintainable, and high-performance systems that power Smartex’s mission.
Responsibilities
- Own system architecture for reliable, observable, and maintainable edge services (clear boundaries, contracts, and failure modes).
- Set engineering standards (design reviews/RFCs, coding guidelines, test strategies, CI quality gates) and act as a mentor and role model for junior engineers.
- Design clean interfaces with backend services (gRPC/REST, schemas, versioning, authentication, timeouts, retries, idempotency).
- Champion software quality: ensure testability, determinism, and reproducibility; drive unit, integration, and end-to-end test strategies with meaningful coverage.
- Drive performance & reliability through profiling, tracing, and data-driven improvements (latency, throughput, error budgets).
- Collaborate cross-functionally with Backend, DevOps, QA, and Product teams to design and deliver robust, evolvable solutions in production.
Skills & Experience
- 10+ years of professional software engineering experience, preferably with 3+ years of hands-on Python in production.
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Strong grasp of software design principles (SOLID, modularity, cohesion/coupling, DDD-lite where helpful).
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Proven experience in software architecture for services: clean layering, clear contracts, configuration management, and observability (metrics/logs/traces).
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Testing excellence: building pragmatic test pyramids, using fixtures/mocks, property-based tests where appropriate, and CI pipelines with quality gates.
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Expertise in backend communication: API design, schema/contract versioning, and resilience patterns (circuit breakers, retries, backoff).
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Strong Linux proficiency (process model, networking basics, filesystems, permissions) and comfort with CLI tooling.
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Excellent documentation & communication skills: clear design docs, ADRs/RFCs, high-signal code reviews, mentoring by example.
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Fluency in English.
- Nice to have:
- Familiarity with NVIDIA inference stacks (Jetson/RTX), TensorRT, DeepStream/GStreamer.
- Experience in low-level languages for performance-critical paths (C/C++ or Rust).
- Knowledge of hardware-in-the-loop test setups, camera/video ingest (V4L2/RTSP), and industrial protocols (MQTT, OPC-UA, Modbus).
- Understanding of device security (TPM, secure boot, encrypted storage) and safe rollout strategies (canary, A/B testing).
Our Perks
Career Progression
Opportunities for growth and
advancement in your career
Employee Stock Options
Gain company shares and
benefit from its success
Diverse and Talented Team
Work with an inspiring,
multicultural, and talented team
Fast-Paced Environment
Thrive in a dynamic and fast-paced work environment within a rapidly expanding company
Impact on the World
Contribute to making a significant impact and shaping the future of the industry
Hybrid Work
Work closely with our Portugal-based team
Work with Senior
Management
Be at the forefront alongside top management
