Senior Software Engineer
Nxt Level
Senior Product Engineer, AI-Native Applications
Employment Type: Full-time
Focus: Product Engineering, Full-Stack Development, Agentic AI, 0-to-1 Product Development
Tech Stack: Python, JavaScript, React, Go, AWS
About Our Client
Our client is building an AI-native platform that enables businesses to deploy intelligent agents and build new applications on top of its core infrastructure.
The company takes a platform-first approach to product development. Rather than building every product from scratch, its engineering team can quickly launch new applications and capabilities using shared infrastructure.
As AI makes software development faster, our client believes the most valuable engineers are those who know what to build, why it matters, and how to turn an idea into a successful product.
They're looking for entrepreneurial engineers who can take complete ownership of products, from identifying customer problems to building, launching, and improving solutions in production.
About the Role
Our client is hiring a Senior Product Engineer to own the development of AI-native products built on top of its platform.
This is a highly autonomous, full-stack engineering role for someone with exceptional product judgment and a demonstrated track record of building successful products from zero to one.
You'll own backend services, enterprise integrations, customer-facing applications, and the AI agent workflows that power them.
The team operates with minimal product-planning overhead. Engineers are expected to identify opportunities, understand customer problems, make product decisions, and ship solutions without waiting for detailed specifications.
The ideal candidate is a founder, former founder, or entrepreneurial engineer who has already built and launched products that achieved meaningful adoption or commercial success.
What You'll Do
- Own AI-native products end to end, from concept and architecture through launch and production.
- Build backend services, enterprise integrations, and customer-facing applications.
- Develop intuitive product experiences using modern frontend technologies such as React.
- Identify customer problems and independently develop solutions.
- Design and improve AI agent workflows built on frontier models.
- Build evaluation frameworks and feedback loops that improve agent reliability.
- Instrument agent failures and turn real customer scenarios into reproducible tests.
- Work across application development, cloud infrastructure, and AI integrations.
- Use AI coding tools to accelerate development while maintaining strong engineering judgment.
- Partner with the founding team to shape product direction and identify new opportunities.
- Take increasing ownership of the product roadmap by proposing and driving new product ideas.
What We're Looking For
- Strong full-stack software engineering experience with production systems.
- Proficiency in Python, JavaScript/TypeScript, React, Go, or similar technologies.
- Demonstrated experience building and launching products from zero to one.
- Track record of products achieving meaningful customer adoption, revenue, or commercial success.
- Exceptional product sense and ability to make thoughtful UX and UI decisions.
- Ability to own backend architecture, frontend development, integrations, and deployment.
- Experience with cloud infrastructure, preferably AWS, and familiarity with infrastructure as code.
- Understanding of agentic AI systems, frontier models, and modern AI development workflows.
- Experience using AI-native engineering tools such as Claude Code, Cursor, or Cline.
- Ability to take ambiguous problems and independently turn them into shipped products.
- Strong first-principles problem-solving skills.
- High ownership, resourcefulness, and comfort working without extensive planning processes.
Bonus Experience
- Founder or former founder who has built and launched successful products.
- Experience building, scaling, or selling a software business.
- Experience developing customer-facing AI or agentic applications.
- Experience with AI agent evaluations, feedback loops, or model reliability.
- Experience integrating products into enterprise software environments.
- Background in early-stage startups with direct product ownership.
- Experience independently identifying and validating new product opportunities.
What Success Looks Like
First 30 Days
- Understand the platform, product architecture, and customer problems.
- Explore existing capabilities and contribute to product development.
- Develop familiarity with the company's AI-native engineering workflows.
First 60 Days
- Take ownership of meaningful product components.
- Independently design, build, and ship customer-facing functionality.
- Begin identifying product improvements and opportunities.
First 6 Months
- Own products or major product surfaces end to end.
- Proactively identify customer problems and propose new product ideas.
- Drive product direction and execution with minimal oversight.
- Become a trusted product thinker and technical owner.
Why This Opportunity
- Build AI-native products on top of an existing platform rather than starting every project from scratch.
- Own the entire product lifecycle, from idea to customer adoption.
- Work in an environment where engineers are trusted to make product decisions.
- Use frontier AI models and coding tools as a core part of development.
- Help shape the company's product direction rather than simply executing a roadmap.
- Join a team that values successful builders, entrepreneurial judgment, and real-world product outcomes.
- Work on products where strong ideas and fast iteration can create meaningful customer impact.
- Find a JobJoin IDR Internal TeamStaffing ServicesConsultantsAbout UsBlogSenior
- Job Description:• 5+ years of hands-on experience in Java development, with at least 1 years in amentoring capacity.• Expert-level proficiency in Core Java (JSE), including deep knowledge of JVM tuning,concurrency, and memory management (a must-have requirement).• 3+ years...Senior
- ...amazing start-up company, and they are into creating new hiring culture.They are looking for a software expert who can do majolica by programming.Job DescriptionJob Title: Senior Software EngineerJob Level : Senior LevelJob Location: New York, NYIndustry: Start UpJob...Senior
- We are seeking a highly skilled and passionate C++ Developer to join our team and help build and expand applications as needed by the business expansion and client needs. Your primary responsibility will be to design, develop, and maintain efficient, reusable, and reliable...Senior
$175k - $325k
...not enough. To succeed, you need to be willing to master the options trading domain and translate this mastery into cutting edge software solutions, collapsing data cardinality where possible. Opportunities may be available from time to time in any location in which the...SeniorWork experience placement- ...YorkDepartment: TechnologyExperience Level: Experience ProfessionalsContact: Paul KrugJob ID: REQ8220Role OverviewWe are looking for a Senior Software Engineer who is both a strong systems engineer and an AI-native builder. You should have exceptional programming fundamentals, deep...Senior
- About the Forward Deployed Engineering TeamForward Deployed Engineering is a small-in-headcount, high-impact team of entrepreneurial engineers who work directly with Narmi's financial institution customers to build features and configure the platform for their specific...SeniorCasual workWork at officeRemote workRelocation3 days per week
$190.4k - $285.6k
...initiatives, author design documents and build consensus across engineering teams. Define technical roadmaps for complex, multi-quarter... ...Bachelor's degree or foreign equivalent in Computer Science, Software Engineering, Engineering, or a related field, plus four (4) years...SeniorRemote work$170k - $220k
...transforming how they can interact with markets tomorrow. For more information, visit The Role : As an experienced Senior Software Engineer you will help build our flagship Clear Street Studio, a modern brokerage experience. You will tackle non trivial problems...SeniorWork at office$25k
...performers, venues, and fans, and build a generational consumer brand in the process. All we’re missing is you.We are looking for Software Engineers with varying levels of experience to join SeatGeek’s R&D team.What you'll doRun a modern, containerized service-oriented...SeniorWork at officeLocal areaWork from homeHome office- ...tokens and stored in a strategic Chainlink Reserve. Learn more at chain.link.About The RoleThe CCIP Protocol team is hiring a Senior Software Engineer to design and maintain the services that coordinate fast, fault-tolerant cross-chain transactions under adversarial...SeniorRemote work
$212.5k - $250k
...system of record, Carta brings together the software, services, and legal infrastructure that... ...shape the outcome. You'll join a small, senior team that blends startup-style execution... ...You'll SolveAs a Senior Software Engineer II, KYC, you will lead technically complex...SeniorFull time- ...established company with a start-up culture seeking creative entrepreneurial people like you to join our team. We’re seeking a Senior Software Engineer to join our global team to be responsible for ensuring the integrity, reliability and maintenance of our internally...SeniorFull timeWork experience placementInternshipLocal areaImmediate start
$148.5k - $223.9k
...the agentic era? You’re in the right place! Agentforce is the future of AI, and you are the future of Salesforce.We are seeking a Senior Member of Technical Staff to drive the design and delivery of large-scale, distributed systems within Salesforce’s Security ecosystem...SeniorFull time$150k - $210k
...diabetes, either personally or through someone we love. We started Center to build the thing we wished existed.The roleYou'll be the engineer who keeps our RPM engine humming, and makes it better every week.Every day, a lot of systems have to work together: patient...SeniorFull timeRemote workFlexible hours- ...operators who invent new ways of working in an industry that historically has resisted innovation. Join us!Senior Software EngineerAbout the RoleAs a Senior Software Engineer at Blink, you'll take on some of our most critical technical challenges and drive high-impact product...Senior
$123k - $215.25k
...annually + bonus + benefitsJob Function: Engineering & ArchitectureSchedule: Full... ...at enterprise scale.ResponsibilitiesAs a Senior Java Developer, you will design, build,... ...improve developer productivity, accelerate software delivery, and enhance code quality. Develop...Senior$192k - $240k
...Datadog to store and query massive volumes of event data at low cost, with data fully queryable within seconds of arrival.As a Senior Software Engineer on this team, you'll work hands-on with a distributed storage system at petabyte scale, and help us evolve our platform to...SeniorRemote workWorldwide$250k - $400k
...RolePolymarket is looking for a pragmatic and resourceful full-stack engineer to join our team. This role sits at the heart of how Polymarket... ...practices.What We're Looking For4-5+ years of professional software development experienceSolid experience building full-stack web...Senior$122k - $158.3k
...business decision-makingEnsure SLAs and reliability for production pipelinesImplement solutions aligned to defined architecture and engineering standardsHow you will add valueDesign and build end-to-end data pipelines: Source Raw Standard ConsumptionImplement robust...SeniorLocal area3 days per week$150k - $185k
...AssistanceRobust Diversity, Equity and Inclusion program including 7 Employee Resource Groups (ERGs)Role Overview We’re seeking a Senior Software Engineer with deep backend expertise and enterprise experience to lead the development of multiple products and services within our...SeniorFull timeContract workRemote work- ...founder.The RoleThis level (L6) is for an engineer who sets technical direction across... ...the engineers around you, especially the senior ones ready to take on more. This isn't a... ...notWhat We're Looking For8+ years writing software, with your scope and impact growing over...Senior
$160k - $240k
Senior Software Engineer - Workplace Productivity Engineer Location New York Business Area Engineering and CTO Ref # 10050679 Description & Requirements Our Team Bloomberg’s Workplace Productivity team builds internal solutions across Microsoft...SeniorTemporary workFor contractorsWork experience placement$143k - $210k
...scalable storage solutions with segment leading performance. Storage engine works with engineering teams across infrastructure, compute,... ...as Go, C, or Rust.Proficiency leveraging AI tools to augment software development.Familiarity with storage observability tools and...SeniorPermanent employmentFull timeTemporary workCasual workWork at officeFlexible hours$212.5k - $250k
...system of record, Carta brings together the software, services, and legal infrastructure that... ...tax to LP reporting. You’ll join small, senior teams that blend startup-style speed... ...moves real money.We’re hiring multiple engineers, and you’ll be hired into the Investors...SeniorFull timeWork at office$152.5k - $205k
...flexible work environment where new ideas are encouraged and everyone is a stakeholder.What you’ll be responsible for:The Senior Software Engineer is responsible for extending Circle's in-house blockchain systems infrastructure to support the tokenization of the world;...SeniorPermanent employmentRemote workFlexible hours$192k - $240k
...spend management, bill pay, and travel software, Brex enables founders and finance teams... ...and support you need to grow your career.Engineering at BrexEngineering at Brex is about building... ...become leaders.What you’ll doAs a Senior Software Engineer, Infrastructure (Release...SeniorWork at officeRemote workWork from home$192k - $240k
...We're on a mission to build the best platform in the world for engineers to understand and scale their systems, applications, and teams... ...’re motivated to push the boundaries of how AI can improve software engineering best practices and contribute to building AI-enabled...Senior$165k - $242k
...Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at .What You’ll DoAs a Senior Software Engineer on the Identity & Access Management (IAM) team, you will play a key role in designing, building, scaling, and maintaining...SeniorPermanent employmentFull timeTemporary workCasual workWork at officeFlexible hours$225k - $300k
...digital and biometric identification, reducing friction for our members wherever an ID check is needed. We’re looking for a Senior Software Engineer to establish our Observability framework and foundations. You will join us to accelerate building and scaling our...SeniorCasual workWork at officeFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!
- software development engineer aws New York, NY
- federal - software developer New York, NY
- software engineer contract New York, NY
- part time software developer remote New York, NY
- software developer New York, NY
- software developer apprenticeship New York, NY
- software engineer internship remote New York, NY
- software engineer mainframe New York, NY
- software engineer amazon New York, NY
- software web developer New York, NY

