23 systems software intern jobs at 20 companies in Cresskill, NJ
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Software Engineering Intern
New York City, New York, United States
$11k/moOnsiteInternship
Melius: AI-native creative canvas for agents to generate visual content.
Pursuing CS degree or equivalent, experience with TypeScript and LLMs/agent frameworks, familiarity with CRDTs and real-time systems, strong communication and product focus.
Austin or Menlo Park or Washington or New York City
$171k-$240k/yrOnsiteFull Time
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
8+ YOEBachelor's degree or equivalent,8+ years building and shipping full‑stack projects,experience scaling internal tooling and driving multi‑team technical roadmaps,ability to communicate across global teams.
Celonis: Provides process mining software for business process optimization.
8+ YOEBS in Computer Science, 8+ years software engineering experience, strong background in database internals and large-scale data systems, proficiency in C++ (17), analytical and problem-solving skills.
C++ (17), Starrocks, ClickHouse, Process Intelligence Graph
Plaid: Provides financial data connectivity and payment infrastructure via APIs.
5+ YOE5+ years professional software engineering experience; proven production systems experience; internal tools/platform building; strong product judgment; hands-on experience with AI development tools or agents.
Persistent Systems: Develops and manufactures secure mobile ad hoc networking systems.
Working toward a Bachelor's in CS/CE, experience developing software in C/C++ for Linux, embedded systems experience, and must have or be able to obtain a U.S. security clearance.
New York City or San Francisco or Seattle or Los Angeles or United States
$214k-$248k/yrRemoteFull Time
Check: Provides embedded payroll infrastructure for software platforms.
Staff-level ownership of production systems, experience building internal tools or platforms, strong debugging and design skills, ability to collaborate cross-functionally, and willingness to work with Python/Django, React, TypeScript, AWS, Terraform, Postgres, Temporal, and GitHub.
TubiNASDAQ: FOXA: Free ad-supported streaming service for movies and television.
8+ YOE8+ years software engineering experience; deep distributed systems expertise; strong full‑stack skills with Node.js/TypeScript, React/TypeScript, PostgreSQL/Drizzle ORM, and Python; experience integrating LLMs/AI into production systems.
Node.js, TypeScript, Express, React, PostgreSQL, Drizzle ORM, Python, OpenAI, Google Gemini, Claude Code, Codex, Cursor, MCP, LLM
Anthropic: Developing safe and reliable artificial intelligence systems.
8+ YOE8+ years building backend systems, data pipelines, or internal platforms; proficiency in Python or Go; experience with cloud platforms and infrastructure-as-code; strong systems thinking and experience with integrations or data infrastructure.
Python, Go, AWS, GCP, Azure, Claude, ServiceNow, Vanta, Drata, OneTrust, REST APIs, webhooks, CI/CD, ELT, ETL, infrastructure-as-code, version control
AsanaNYSE: ASAN: Software platform for team project management and workflow automation.
3+ YOE3+ years working in large codebases; experience building developer tools, IDE/editor/CLI integrations, or internal platforms; hands-on with AI-assisted development tools; strong systems design and technical judgment.
Bloomberg: Delivers financial data, news, and software to global markets.
4+ YOE4+ years OOP experience, degree in CS/Engineering/Math or equivalent, strong experience or interest in database internals and distributed systems, Linux debugging, and working with high-throughput, low-latency data platforms.
Senior Software Engineer II - Confluent Cloud Platform (Remote)
Poughkeepsie or Lowell or Rochester or Tucson or Research Triangle Park or Armonk or Boston or Bellevue or Atlanta or San Jose or Dallas or Austin or San Francisco or Seattle
$131k-$245k/yrHybridFull Time
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
Strong programming in Go/Java/Python, deep systems internals, Kubernetes and public cloud (AWS/GCP/Azure) experience, GitOps/Terraform/CI/CD/observability expertise, bachelor's degree required; ability to work without visa sponsorship.
Citadel Securities: Global market maker providing liquidity for financial markets.
PhD in a quantitative field, strong programming skills (C++, Python, R), CS fundamentals and software development experience, familiarity with ML/NLP/distributed systems preferred, strong communication skills.
Member of Technical Staff - Internal Agent Engineering
New York City, New York, United States
$250k-$350k/yrOnsiteFull Time
Entendre: Develops internal automation and agent technology to improve developer experience and operations.
Experience building scalable internal tools, agents, or workflow automation; understands developer workflows, context management, and internal process automation; proficient in software development, API building, and integrating systems; strong documentation and communication skills; experience developing internal agents.
Zocdoc: Online platform for searching and booking healthcare appointments.
7+ YOE7+ years building internal developer platforms, CI/CD and developer tooling experience, designed and operated distributed systems in AWS, strong communication, mentoring, and platform-as-product mindset with AI-assisted development experience.
Scale AI: Provides data and infrastructure for training artificial intelligence models.
4+ YOE4+ years building high-performance systems software; deep Linux internals, containerization/virtualization, systems programming (Go/Rust/C/C++); strong debugging and API/SDK design skills.
HermèsEuronext Paris: RMS: Designs, manufactures, and retails global high-end luxury goods.
3+ YOE3+ years operations experience preferred in luxury retail; maintain accurate inventory, process shipments/returns, perform cycle counts, use internal systems and shipping software, attention to detail.
Justworks: HR, payroll, and benefits platform for small businesses
5+ YOE5+ years designing complex human/software service experiences; portfolio of case studies; cross-functional collaboration; systems thinking; Figma proficiency; experience in HR/benefits or related domains preferred.