874 junior software developer jobs at 432 companies in Mercerville, NJ
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JUNIOR SOFTWARE ENGINEER
New York, New York, United States
$75k-$95k/yrHybridFull Time
GlobeTax: Provides global withholding tax recovery and reclamation services.
0+ YOEBachelor's degree in CS/Engineering/Math or related field; 0–2 years with C# and .NET; OO fundamentals; related experience with databases and version control; eager to learn.
Ornn: Building financial infrastructure for the AI compute economy.
1+ YOERequires 1+ year shipping production software, strong Python, backend API and data-system experience, full-stack capability, independent work, and a BS or MS in computer science or a related field.
Clark: AI-powered trust infrastructure for audit and accounting firms.
0+ YOE0–2 years professional software engineering experience; solid fundamentals in at least one modern language/framework; strong personal project or OSS contribution; eager to learn and work on-site in NYC. TypeScript/React/Node or Python and AI/LLM exposure are a plus.
Warsaw or New York City or London or Singapore or Hong Kong or Poland
OnsiteFull Time
Balyasny Asset Management: Global multi-strategy investment firm managing diverse alternative asset classes.
Recent CS graduate or equivalent experience; strong programming fundamentals; experience with AI-assisted coding tools; proficiency in at least one language (C#, Rust, C++, Java, Go, Python); exposure to distributed systems, messaging platforms, and AWS.
CTDI: Repairs and manages logistics for telecommunications and electronic equipment.
0+ YOEC# software development experience preferred; 0–2 years of electrical engineering experience. Requires software engineering knowledge, analytical and communication skills, hardware troubleshooting, and lab testing experience.
CATV, Linux, C#, oscilloscope, signal generator, multimeter, power supply
Frameable: Software tools for enhanced digital collaboration and productivity.
Proficiency in ES6+ JavaScript, advanced CSS, Vue/React/Riot, and backend development with Node.js, Python, or Ruby; Agile experience and interest in SVG, Canvas, or drawing tools.
United States or Boston or New York City or Denver
$110k-$125k/yrRemoteFull Time
Spoiler Alert: SaaS platform for managing and liquidating surplus food inventory.
2+ YOE2+ years professional software engineering experience; full‑stack web development using TypeScript, React, Express, and MongoDB; strong testing, collaboration, and productive use of AI coding tools.
Flatiron Health: Software platform for oncology data and clinical research.
1+ YOEBachelor's degree in CS or related field and 1 year software engineering experience; experience with data modeling, backend development, PostgreSQL, Apache Airflow, cloud data management, web CRUD, testing, and Git.
Menlo Park or New York City or Bellevue or Washington or Denver or Westlake or Chicago or Lake Mary or Clearwater or Gainesville
$166k-$195k/yrHybridFull Time
RobinhoodNASDAQ: HOOD: Provides a commission-free platform for investing and financial services.
2+ YOE2+ years of software development experience; backend expertise in Go, Python, or Java; cloud-native architecture, system design, data modeling, and software engineering fundamentals required.
Noblis: Provides science and technology solutions for government missions.
0+ YOEBachelor's in an engineering discipline, 0–3 years software development experience with C/C++/C# or equivalent academic projects, active or obtainable DoD Secret clearance and US citizenship, valid/obtainable US passport, ability to travel 10–20%.
Microsoft Visual Studio, Git, Microsoft .NET Framework, Visio, MS Access, SQL, C, C++, C#, TCP/IP, UDP
RepligenNASDAQ: RGEN: Develops and manufactures bioprocessing technologies for pharmaceutical drug production.
Bachelor's in CS or related (or equivalent experience), early-career software development experience, working knowledge of C# and Microsoft .NET, familiarity with PostgreSQL, Docker, Git, REST APIs, unit testing, and strong problem-solving and communication skills.
C#, Microsoft .NET, PostgreSQL, Docker, Git, REST APIs, Jira, Confluence, OPC UA, Linux
Temple University: Public university providing higher education, academic research, and healthcare
2+ YOEBachelor's degree in computer science, software engineering, information systems, or related field and 2+ years' related experience. Requires cloud development, API integration, testing, documentation, AI applications, Python or JavaScript, and secure data handling.
Attention: AI agents that automate sales workflows and CRM data.
2+ YOERequires 2+ years of software engineering experience, Go or comparable backend language, software design fundamentals, autonomous problem-solving, and end-to-end feature ownership.
New York City or San Francisco or United States or Canada or United Kingdom
$168k-$275k/yrOnsiteFull Time
Ramp: Financial operations platform for corporate cards and spend management.
2+ YOEMinimum 2 years software development experience; ability to ship reliable applications, use modern development tools, and drive metric-driven outcomes. Familiarity with Python/Flask, SQL, and observability; experience with AI/LLMs and fintech risk domains is a plus.
United States Cold Storage: Provides temperature-controlled warehousing and cold chain logistics services.
1+ YOERequires 1–3 years of software development experience, Python, web frameworks, relational databases and SQL, APIs, cloud platforms, communication, analytical skills, and teamwork.
Lockheed MartinNYSE: LMT: Designs and manufactures advanced aerospace, defense, and security systems.
1+ YOERequires 1+ year software development experience, programming and scripting skills, Agile experience, U.S. citizenship, and active Top Secret clearance with ability to obtain SCI clearance.
EnergyHubNASDAQ: ALRM: Software platform managing distributed energy resources for utility grids.
2+ YOE2+ years developing and deploying production software, UI/UX experience, proficiency in named programming and cloud tools, strong English communication, and regular Helsinki office attendance.
Go, React, TypeScript, Python, Django, PostgreSQL, Docker, Amazon Web Services (AWS), Slack, Google, Zoom, Claude Code
United States Cold Storage: Provides refrigerated warehousing and logistics services for the cold chain.
1+ YOERequires 1–3 years of software development experience, Python, modern web frameworks, relational databases and SQL, cloud platforms, APIs, strong communication, and analytical problem-solving skills.
AzentaNASDAQ: AZTA: Provides automated biological sample management and genomics services.
2+ YOEBachelor's degree in computer science or related field,2+ years developing with C#,ASP.NET and web technologies,SQL/SQL Server experience,HTML/CSS/JavaScript,good communication and problem-solving skills.
Virtu FinancialNYSE: VIRT: Provides liquidity and trading technology to global financial markets.
Rising juniors or soon-to-be graduates in CS/EE with strong programming in Python plus Java or C++, quantitative skills, and ability to complete a HackerRank coding test.