Temporary Software Engineer Jobs in Darien, CT (NOW HIRING)

Calling all innovators - find your future at Fiserv.

We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

About Clover

Clover is a pioneer in the fintech space, dedicated to transforming the way small and medium-sized businesses operate. As a part of Fiserv, we provide an all-in-one point-of-sale (POS) and business management platform that handles everything from seamless payment processing to inventory and staff management. With over 15 billion transactions processed annually, Clover empowers merchants worldwide to run their businesses more efficiently and grow with confidence.

What does a successful Senior Software Engineer do at Clover?

As a Senior Software Engineer at Clover (a Fiserv company), you will build and scale digital products tailored specifically for the restaurant vertical. You will drive full-stack development to help restaurant owners and staff manage daily operations while delivering seamless, dependable experiences for diners. In this role, you will take ownership of complex, evolving projects end-to-end, mentor fellow engineers, and shape resilient technical solutions that power millions of interactions.

What you will do:

• Lead the design, development, and implementation of high-performing software applications that align with Clover's strategic goals.

• Collaborate with cross-functional partners to translate business requirements into clear, scalable technical specifications.

• Write, test, and debug code across the stack to ensure system reliability and optimal performance.

• Continuously improve existing codebases and lead peer-review processes to maintain technical quality.

• Coach junior developers, sharing technical expertise to help grow the overall team's capabilities.

What you will need to have:

• 6+ years of software development experience (or equivalent combination of education, experience, and/or military service).

• 5+ years of web development experience, including 4+ years of front-end development with React and Next.js.

• 3+ years of back-end development experience using Java, C#, or similar programming languages.

• 3+ years of experience working with SQL databases.

• 3+ years of experience with cloud platform services (AWS or GCP).

• 3+ years of experience with CI/CD pipelines and Agile methodologies.

• Hands-on experience developing applications with TypeScript and the ability to work comfortably across frontend and backend technology stacks.

• Proven ability to lead projects end-to-end when scope is ambiguous or continuously evolving.

What would be great to have:

• Direct experience in the hospitality or restaurant industry.

• Extended hands-on expertise with advanced CI/CD pipelines and modern DevOps practices.

You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role.

Salary Range

These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Thank you for considering employment with Fiserv. Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contactAskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements.Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.