Knot · 20 hours ago
Senior Android Engineer
New York, NY
Full-time
Onsite
Senior LevelKnot is a company focused on empowering consumers and businesses with connected merchant and banking experiences. They are seeking a Senior Android Engineer to architect and optimize their Android SDK, ensuring it performs flawlessly in real-world environments and collaborating with product and engineering teams.
Developer APIsFinTech
Responsibilities
Lead the design, architecture, and optimization of the Android SDK
Profile and improve memory behavior, garbage collection patterns, CPU usage, allocation behavior, concurrency, and rendering
Design stable public APIs and document them clearly for partner developers
Strengthen test coverage with unit tests, UI automation, integration tests, and performance tests
Co-own the Android CI/CD workflows to ensure reliable and safe releases
Investigate complex production issues and build guardrails to ensure they do not reoccur
Produce thorough documentation that improves integration experience
Represent Android platform considerations during technical planning and reviews
Advocate for integration best practices internally and externally
Promote high standards around clarity, reliability, and engineering craftsmanship
Qualification
Required
Strong debugging skills with Android profiling tools
Deep understanding of memory management, garbage collection, threading, and CPU analysis
Experience working with asynchronous and multithreaded systems
Ability to design, validate, and document public SDK APIs
Strong testing practices including UI automation
Familiarity with Android CI/CD systems and willingness to help improve them
Comfortable validating releases end to end
Clear communicator and effective collaborator
Experience working with feature flagging and staged rollout strategies
Deep experience with WebView including custom WebViewClient, WebChromeClient, resource handling, messaging, and hybrid debugging
Strong experience with Java for Android development
Experience building and maintaining Android libraries
Familiarity with Gradle build tooling and performance tuning
Benefits
100% medical, dental, and vision insurance coverage for you and your dependents (U.S.)
Unlimited PTO
Parental leave
Beautiful NYC office in the heart of Flatiron
Herman Miller Aeron desk chair
Food (snacks, frequent lunches & often dinner for those working late)
Company
Knot
The merchant connectivity platform. Switch cards-on-file in online merchant accounts.
Founded in 2019
11-50 employees
H1B Sponsorship
Knot has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2022 (2)
Funding
Current Stage
Early StageTotal Funding
$13MKey Investors
Nava VenturesGiant Ventures
2024-09-05Series A
2023-08-03Series A· $10M
2021-02-02Seed· $3M
Leadership Team
Rory O'Reilly
CEO and Co-Founder
Recent News
2025-12-13
2025-12-11
Tech in Asia
2025-12-10
Company data provided by crunchbase