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Protingent

Senior Software Engineer

On site

Redmond, United states

$ 80 /hour

Senior

Freelance

14-01-2026

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Skills

Communication Python C# Kotlin Statistical Analysis Test Quality Management Training Architecture Risk Analysis Linux Operating Systems Windows Programming Databases Software Development C++ Embedded Systems Android

Job Specifications

Job Description

Position Title: Senior Software Engineer

Position Description: Protingent Staffing has an exciting contract opportunity with our client in Redmond, Washington for an experienced Senior Software Engineer.

Job Responsibilities:

Participate in software development projects (applications that work with custom interconnected hardware and firmware) through entire product life cycles - including planning, prototyping, designing, developing, testing, launch, and maintenance within the boundaries of medical design controls and quality management systems;
Contribute to detailed product requirements using cross-functional team input and through the translation of user needs;
Implement software development processes for quality deliverables including planning/implementing software unit tests, documenting design and architecture, conducting/participating in engineering reviews, and supporting design transfer activities;
Contribute to modifications to existing designs for improved usability, functionality, reliability, usability, and safety;
Support conceptualization, prototyping, and planning of next-generation products.
Work collaboratively within a small multi-disciplinary development team, provide status updates, and clearly set/meet work expectations.
Actively contribute expertise to (and learn from) the larger software and engineering group.

Job Qualifications:

Degree/s in Computer Science, Computer Engineering, Electrical Engineering or relevant field
8+ years of software design & development experience;
Demonstrated programming experience with Python (and additionally familiarity with other languages preferred Kotlin, C#, C++) and operating systems (e.g. Linux, Android, Windows) in a production environment;
Experience with Qt / QML;
Experience with source control tools, development procedures, unit test frameworks, etc.;
Experience working on projects that comply with strict safety and performance specifications while also meeting aggressive timelines and budgets;
Knowledge of common data structures, algorithms, and statistical analysis methods;
Strong analytical and communication skills (written and verbal);
Self-motivated attitude, ability to establish and maintain cross-functional relationships;
Ability to organize, analyze, and interpret data to generate insights and conclusions;
Capability of working both hands-on and independently in a fast-paced environment.

Preferred Qualifications:

Previous direct involvement in medical product development, including implementation experience under quality management and regulatory compliance standards for medical devices (e.g. IEC 62304, FDA Cybersecurity Guidance, etc.) and/or other highly regulated industries;
Familiarity with safety risk analysis as it pertains to medical device software;
Subject matter expertise with wireless communication interfaces/protocols (e.g. BLE), databases, cloud computing, and/or data privacy;
Experience working with product development in an outsourced partner model, working with teams across multiple geographies;
Experience supporting development of instructions for use (IFUs), training manuals, and other customer-facing literature;
Experience developing both PC-based and mobile-based applications;
Experience interfacing with embedded systems and interfacing with peripheral devices (e.g. ADCs/DACs, RTCs, battery chargers, and sensors);
Familiarity with the use of oscilloscopes, DMMs, and other common hardware debugging tools;
Previous experience working in a start-up or early-stage environment.

Job Details:

Job Type: Contract
Pay Rate Range: $60-$80/hr.
Location: Redmond, WA (Hybrid)

Benefits Package: Protingent offers competitive salaries, insurance plan options (HDHP plan or POS plan), education/certification reimbursement, pre-tax commuter benefits, Paid Time Off (PTO), and an administered 401k plan.

About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We’re passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future

About the Company

Protingent is a technical staffing firm specializing in providing IT and engineering professionals for all areas of product design, development and test. We place high-caliber engineers with many of the leading technology companies in the U.S. We were founded in 2001 by an engineer and have always been dedicated to providing the right engineers who possess a high level of skill and knowledge regarding the technologies required to drive our clients' success. The intrinsic value of any enterprise comes down to the quality of ... Know more