Remotown

About the Company
We are a fast-growing fintech company operating primarily in the B2B payments and financial services space. The company builds and maintains mission‑critical payment solutions, with a strong focus on POS devices, POS software, and banking-related systems. Our products are used by businesses and financial institutions, requiring high reliability, security, and performance.
The engineering team values ownership, clear communication, and delivery over micromanagement, offering a supportive work environment where developers are trusted to manage their tasks and timelines.
Role Overview
We are seeking an experienced Senior Mobile (Java/Kotlin) Developer to join the engineering team and play a key role in developing, enhancing, and maintaining POS-related applications and fintech platforms. The successful candidate will work on both existing and new products, with most projects centered around POS devices, POS software, vending systems, and integrations for banks and financial institutions. This role requires strong technical expertise, reliability, and the ability to work closely with cross‑functional teams in a structured but flexible environment.
Key Responsibilities
<ul style="margin-top: 0in;">
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Design, develop, and maintain high-performance Android applications using Kotlin.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Contribute to POS device software, POS applications, and related fintech solutions.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Work on EMV-based transaction processing, including secure card payment flows.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Collaborate with backend teams to integrate mobile applications with payment gateways, APIs, and core financial systems.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Support POS terminal integrations, device communication, and SDK usage in collaboration with hardware teams.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Participate in the development and maintenance of Flutter-based POS software (nice to have).</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Contribute to Kotlin Multiplatform (KMP) initiatives where applicable.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Debug, test, and optimize applications to ensure high reliability, security, and low latency.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Ensure compliance with PCI DSS, EMVCo, and other relevant security and regulatory standards.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Actively participate in code reviews, technical discussions, and architectural decisions.</li>
<li class="MsoNormal" style="text-align: justify; line-height: 150%; mso-list: l2 level1 lfo1; tab-stops: list .5in;">Clearly document technical designs, processes, and integration guidelines.</li>
</ul>
Required Skills &amp; Experience
<ul>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Minimum of 7 years professional experience in mobile or application development</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Strong proficiency in Kotlin (Android)</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Solid experience with Java (especially for API or backend-related work)</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Experience working with POS systems, payment applications, or fintech platforms</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Hands-on exposure to EMV-based systems and payment transaction flows</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Understanding of secure transaction processing and card data protection</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Experience integrating with APIs, payment gateways, and backend services</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Strong debugging, testing, and optimization skills</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l0 level1 lfo3; tab-stops: list .5in;">Ability to work independently while collaborating effectively with a team</li>
</ul>
Projects You Will Work On
<ul>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l1 level1 lfo2; tab-stops: list .5in;">POS device software and applications</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l1 level1 lfo2; tab-stops: list .5in;">POS software built with Flutter</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l1 level1 lfo2; tab-stops: list .5in;">Vending and transaction systems linked to POS infrastructure</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l1 level1 lfo2; tab-stops: list .5in;">Fintech and banking integrations (primarily B2B, not B2C)</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l1 level1 lfo2; tab-stops: list .5in;">Enhancements and scaling of existing production systems</li>
<li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 150%; mso-list: l1 level1 lfo2; tab-stops: list .5in;">Development of new fintech products within the payments ecosystem</li>
</ul>