Senior Staff Software Engineer, Partner Integrations
Company shown to members 🔒 · Remote · US only
Apply free: 3 jobs are on us✨ Tailor my resume for this job🎤 Practise the interview question, free
✓ Straight from the company's own careers page. No middlemen, no “we'll send you a check for equipment”. How we check jobs
✓ Sent 100 applications and heard nothing? Make this one count: tailor your resume to this ad in one tap, free.
✨ Not sure this is the one? Get your remote job matches in 30 seconds →
First recorded by Psst: 12 October 2026. Your first 3 jobs are free to apply to (the first right away, 2 more with your email). After that, the company and the apply link are for Psst members, from $4.99 for 7 days.
Practise the first interview question for this job
If the company replies, the first call usually starts with a question like this. Vague answers are the easiest to reject. Write yours and get an AI score in under a minute.
The 20-second read
- Experience
- 10+ years required
- Where you can live
- US only
- Skills and tools
- aws, customer success
- Degree or licence
- Mentioned (bachelor)
Read from the ad by Psst's rules. Check the full ad below before applying.
Job details
- Where you can work
- United States
- Employment type
- Not stated by the employer
- Advertised pay
- $240K–300K/yr
- Experience
- 10+ years required
- Employer publication date
- 18 September 2026
- First recorded by Psst
- 12 October 2026
- Last checked at the source
- 10 November 2026
About the job
The company is a growth-stage, NYC headquartered FinTech company that is building the payment layer for life's financial obligations, giving households one place to see, split, and pay their bills around how they live and get paid. By offering greater choice over how and when payments are made and allowing eligible on time payments to help build a positive credit history, the company puts households back in control of their cash flow.
That work brings together people with different perspectives who challenge the status quo and take ownership of solving difficult problems. For you, that means doing the best work of your career next to people who make you better, and together bringing ideas to life that make a real impact for the people we serve.
About Our Opportunity
The company 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 the company for data sharing and payments across entry points like the company 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 the company’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 the company
Building a successful company takes a diverse team of intelligent, curious, determined, empathetic, and self-aware people. Our headquarters is in New York City, with employees across the US, Australia, Canada, and South America. We’re growing quickly and deliberately, with a focus on building an inclusive culture. We value the perspectives our people bring and take 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
View our benefits and more at getflex.com/careers .
Apply free: 3 jobs are on us✨ Tailor my resume for this jobPrepare with the Apply kitMore remote software engineer jobs →
- Open 8 weeks
A resume that gets past the first 6 seconds
Recruiters skim. The Psst resume coach fixes what makes them skip you, line by line, and one tap tailors it to the exact job you're applying to.
- 1Every line checkedWeak starts, clichés and AI-sounding phrases flagged, with a 3-question fix.
- 2Tailored to the jobSee which skills and tools from the ad your resume is missing. Try it free on one of your matches.
- 3Ready for remoteTime zone, tools and proof you work on your own, the things remote teams look for.
- 4Looks the partOne page, 6 designs, 8 colours and a matching cover letter, free to build. Premium downloads the PDF and Word files.
Example with made-up details. The score is the builder's own check, not an ATS rating or a promise of an interview.