Hiring.Camp

Senior Staff Software Engineer, Partner Integrations

Flex

·

Today

Location
Remote · New York, NY
Workplace
Remote
Type
Full-time
Department
Engineering
Seniority
Senior
Experience
10+ years
Source
Greenhouse

Description

Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. It’s hard to believe that it’s 2026 and paying rent on time is expensive, inflexible, and difficult. We’re here to change that! Flex enables our users to pay rent throughout the month on a schedule that better fits their finances and budget. Our mission is to empower as many renters as possible with flexibility over their most significant recurring expense. After deliberately keeping a stealth profile as we built up unprecedented investor support and an enthusiastic user base, we are looking for motivated individuals to help us keep our mission growing. Will you be a part of the team?

About Our Opportunity

Flex exists to make paying rent work the way real life actually works — smoothing out cash flow, helping renters avoid late fees, and letting them build credit instead of falling behind. As a Senior Staff Software Engineer, you'll oversee the technical roadmap for the team, working across APIs, SDKs, and Web experiences. You will work with teams across the organization including Engineering, Product, Design, Infrastructure, Sales, Partner and Customer Success to ensure that the technical strategy meets our goals. We expect you to be hands-on and execute work as an individual, and build products that allow for flexibility as we evolve our product offerings.

About Our Team!

We have some really exciting teams who are looking for an amazing engineer like you! Check them out! 

  • Partner Integrations - Partner integrations work to standardize APIs, tools, and processes that let external partners connect to Flex for data sharing and payments across entry points like Flex Anywhere

Who thrives here?

  • A Doer — you get things done efficiently, and you're comfortable rolling up your sleeves when something's blocking the team.
  • An Owner — you take full accountability for what you build, from design through production, and you always have a plan B.
  • Someone Collaborative — you bring people together to pressure-test ideas rather than working in a silo.
  • Someone with Precision — your code and your communication are both clear, because ideas only matter once others can act on them.
  • Someone Resilient — systems break and priorities shift, and you adapt without losing momentum.
  • Someone Humble — you care more about getting to the right answer than being the one who's right.

Qualifications:

  • Bachelor or above degree in Computer Science or a related field
  • Minimum of 10 years experience in software engineering, with at least 3 years of technical leadership experience in a hands-on capacity
  • Ability to work on a globally-distributed team with a high degree of ownership
  • Experience leading the delivery of multiple highly impactful products end to end, on time with a high quality bar
  • Experience working with technical and non-technical stakeholders, successfully aligning and setting expectations on scope and delivery
  • Ability to drive yourself and your team to bring quality and consistency to their code and architecture, without compromising velocity
  • Ability to grow in a fast-paced and dynamic environment that will challenge you to always bring your best
  • Experience in designing and developing solutions that maximize ROI and lead to significant business impact
  • Experience working in FinTech and familiar with major payment rails 
  • Experience working with Sales stakeholders and/or building products for Sales professionals
  • Experience building integrations with external partners & managing relationships with external stakeholders
  • Experience working on AWS cloud based applications

Compensation

Flex takes a market-based approach to pay, and compensation may vary depending on your primary work location. Work locations are categorized into one of three tiers based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be commensurate with their experience, qualifications, and Flex’s internal leveling guidelines and benchmarks.

Tier 1 (NYC/Bay Area, Los Angeles, Seattle)
$240,000$300,000 USD
Tier 2 (Austin, Washington D.C. Philadelphia, San Diego, Chicago, Atlanta)
$216,000$270,000 USD
Tier 3 (Salt Lake City, all other USA cities)
$204,000$255,000 USD

Life at Flex

We understand that it takes a diverse team of highly intelligent, curious, determined, empathetic, and self aware people to grow a successful company. Our HQ is located in New York City, but we have employees located throughout the US, Australia, Canada and South America. We are growing quickly, but deliberately, with a focus on building an inclusive culture. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity workplace.

Offices

Roles posted in New York, San Francisco, and Salt Lake City are hybrid positions with on-site expectations of 2-3 days per week in our local offices. For candidates outside of these areas, you may be eligible for our relocation assistance program.

Benefits

For full-time U.S. employees we offer:

  • Competitive medical, dental, and vision
  • Company equity
  • 401(k) plan with company match 
  • Unlimited paid time off + 13 company paid holidays
  • Parental leave 
  • Free Flex subscription

 For full-time non-U.S. employees, we offer:

  • Competitive compensation + company equity
  • Unlimited PTO

Skills

AWS

Similar Jobs

30

Senior Staff / Staff Software Engineer

Scowtt · Seattle / San Francisco +1

Today

Senior Staff Software Engineer, Benefits

Gusto · New York, NY - Hybrid · Hybrid

Today

Senior Staff Software Engineer

WISE · London, United Kingdom

Yesterday

Sr. Staff Software Engineer- Eng

UKG · Sunrise, FL,US, US

Yesterday

Sr. Staff Software Development Engineer

Zscaler · Remote - USA; San Jose, California, USA +2 · Remote

Yesterday

Sr. Staff Software Development Engineer

Zscaler · Bangalore, IND

Yesterday

Sr Staff Software Engineer

ServiceNow · Hyderabad, India · Hybrid

Yesterday

Sr. Staff Software Engineer- iOS Development

UKG · Noida, UP,IN, IN

Yesterday

Senior Staff Data Platform Software Engineer (Java Distributed Systems & Kakfa)

ServiceNow · Hyderabad, India · Hybrid

Yesterday

Senior Staff Engineer, Software

PacBio · Menlo Park, United States of America

Yesterday

Sr Staff Engineer Embedded Software-T6 (AHT)

Northrop Grumman · CANR01, United States of America · Remote, Onsite

Yesterday

Sr Staff Software Engineer - (Platform Engineering /Distributed Systems) *HYBRID*

Geico · WA Renton Office, United States of America +1 · Hybrid

Yesterday

Sr Staff Engineer Embedded Software-T6 (AHT)

Northrop Grumman · Los Angeles, CA,US, US · Remote, Onsite

Yesterday

Senior Staff Engineer, Product Software

Equinix · Dallas Infomart Office DAI, United States of America · Hybrid

Yesterday

Senior Staff Software Architect

Gehc · IND19-01-Bengaluru-EPIP 122 (Phase II), India

Yesterday

Staff/Senior Software Engineer, Document Intelligence & Data Infrastructure (Helios)

Unusual Ventures · New York, New York · Onsite

2 days ago

Staff/Senior Software Engineer, Agent Engineering (Helios)

Unusual Ventures · New York, New York · Onsite

2 days ago

Senior Staff Software Developer, Developer Infrastructure

Robinhood · Toronto, Canada

2 days ago

Senior Staff Software Engineer, Trust Engineering

LinkedIn · Mountain View, CA, United States · Hybrid

2 days ago

Senior Staff Software Engineer - Agentic AI

ServiceNow · Santa Clara, CALIFORNIA, United States · Hybrid

2 days ago

Senior Staff Software Engineer, Moveworks

ServiceNow · Bangalore, Karnataka, India

2 days ago

Sr. Staff Software Engineer- Eng

UKG · Noida, UP,IN, IN

2 days ago

Senior Staff Engineer Software

Infineon · Bengaluru, KA,IN, IN

2 days ago

Sr Staff Software Engineer

Cohesity · Cohesity - Santa Clara, United States of America

2 days ago

Senior Staff Embedded Device Software Engineer

Marvell · US-CA - Irvine, United States of America

2 days ago

Senior Staff - Software Engineer - Agentic AI

Alliancedata · Q8 - Bangalore, India

2 days ago

Senior Staff Software Engineer, Developer Infrastructure

Robinhood · Menlo Park, CA; New York, NY

3 days ago

Sr Staff Software Engineer

Aumovio · Auburn Hills, MI, United States · Onsite

3 days ago

Senior Staff AI-Native Software Engineer – Agentic Systems

ServiceNow · San Francisco, CALIFORNIA, United States · Remote, Hybrid

3 days ago

Sr. Staff Software Engineer- Java/AI

UKG · Noida, UP,IN, IN

3 days ago
Remote Senior Staff Software Engineer, Partner Integrations at Flex | Hiring.Camp