UX/UI Senior Software Engineer

PartnerOne is a private investment firm that acquires and grows enterprise software companies, providing mission-critical solutions to large corporations and governments worldwide.

Partner One Capital

Employee count: 1001-5000

Brazil only

Stay safe on Himalayas

Never send money to companies. Jobs on Himalayas will never require payment from applicants.

At Fidelis Cybersecurity, Inc. our mission is to protect the world’s most sensitive data by equipping organizations to detect, investigate and stop advanced cyber-attacks.

Attackers are relentless and clever. They hide their exploits deep inside networks, email and endpoints. Fidelis digs as deep as attackers hide. With Fidelis, customers will know when they are being attacked, and they can retrace attackers’ steps and freeze them in their tracks.

We don’t just read the headlines at Fidelis. We live them. Our elite team of incident responders is in the trenches every day assisting customers to manage their way through critical security incidents of all kinds. This seat on the front lines gives us a unique view to see what works and what doesn’t when it comes to keeping attackers at bay.

Take a seat with our preeminent team and be a part of our mission to give our customers the power to combat today’s sophisticated advanced threats with a robust, comprehensive portfolio of products, services, and expertise. As a UX/UI Software Engineer, your main responsibilities are :

Develop and maintain scalable and secure web applications using Angular.
Collaborate with UI/UX designers to implement user-friendly interfaces.
Work with backend developers to integrate APIs and ensure smooth data flow.
Optimize applications for maximum speed and scalability.
Write clean, maintainable, and well-documented code.
Participate in code reviews, testing, and debugging.
Use latest industry trends, and best practices in Angular and web development.
Translate business requirements into technical solutions

Requirements

Bachelor’s degree in Computer Science, Engineering, or a related field / experience.
Proficient in angularjs and Angular 12+ (experience with latest versions preferred).
Experience with reactive frameworks and libraries such as NgRx and RxJS.
Strong knowledge of TypeScript, JavaScript, HTML5, Less, SCSS
Experience with RESTful APIs and third-party integrations.

· Strong experience with SQL.

· Hands-on experience with IIS.

Proficiency in performance tuning
Proficiency in optimization techniques for both applications and databases.
Familiarity with cloud platforms (AWS, Azure, or GCP).
Strong problem-solving skills and attention to detail.
Excellent communication and teamwork abilities.

Preferred Qualifications

Knowledge of NoSQL databases and search engines.
Experience with Agile development methodologies.
Experience with containerization (Docker or Podman)

Benefits

Competitive salary

Opportunity to work in a dynamic and innovative environment.

Professional development and growth opportunities.

Flexible work schedule and remote work options

Apply now

Please let Partner One Capital know you found this job on Himalayas. This helps us grow!

Apply now

About the job

Apply before

Dec 21, 2025

Posted on

Oct 22, 2025

Job type

Full Time

Experience level

Senior

Location requirements

Brazil

Hiring timezones

Brazil +/- 0 hours

About Partner One Capital

Learn more about Partner One Capital and their company culture.

View company profile

At PartnerOne, we are at the forefront of technological advancement, pioneering a new era for enterprise software. Through our strategic acquisitions and long-term investment philosophy, we are revolutionizing how major corporations and governments harness the power of their data. Our core mission is to identify and cultivate mission-critical software solutions, providing them with a 'forever home' where they can innovate and thrive. We are deeply rooted in real-world research and development, consistently pushing the boundaries to solve the complex challenges presented by the exponential growth of Big Data. Our portfolio is a testament to our commitment to innovation, featuring companies that are leaders in data virtualization, cloud tiering, autonomous data management, monitoring automation, and digital transformation. By investing in these groundbreaking technologies, we empower our customers to not only streamline their operations and ensure compliance but to also unlock new revenue streams and capture greater market share.

Our innovation focus extends beyond just technology; it's embedded in our operational DNA. We believe in granting our portfolio companies the autonomy to innovate while providing the strategic leadership and financial stability necessary for sustained growth. This unique approach has made us one of the fastest-growing software groups in the world. The world's largest and most data-intensive organizations, including 8 of the 10 largest companies globally, place their trust in PartnerOne's software to manage their most critical operations and safeguard their most valuable data assets. We are not just acquiring companies; we are building a synergistic ecosystem of technology leaders, fostering a culture of continuous improvement and excellence. Our unwavering commitment is to our customers and our people, ensuring we are always building, always innovating, and always delivering unparalleled value in the ever-evolving digital landscape.

Tech stack

Learn about the tools and technologies that Partner One Capital uses to build, market, and sell its products.

View tech stack

Spring

Java

Linux

SQL

Splunk

Google Analytics

RabbitMQ

Hibernate

WordPress

SEMrush

ServiceNow

Partner One Capital employees can create an account to update this tech stack.

Employee benefits

Learn about the employee benefits and perks provided at Partner One Capital.

View benefits

Vision

Offers vision benefits.