Lead Full Stack Engineer Job at Apex Systems (Mclean)

Full Stack (Java/Angular) Engineering Lead

The Full Stack (Java/Angular) Engineering Lead is a senior level position respon...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

6+ years of relevant experience in the Financial Service industry
Angular, Typescript, HTML, CSS Java, Spring boot, Oracle, NoSQL
Experience as senior level in an Applications Development role
Stakeholder and people management experience
Demonstrated leadership skills
Proven project management skills
Basic knowledge of industry practices and standards
Consistently demonstrates clear and concise written and verbal communication

Job Responsibility

Experience with large-scale distributed web services and the processes around testing, monitoring, and SLAs to ensure high product quality
Utilize in-depth knowledge and skills across multiple Applications Development areas to provide technical oversight across systems and applications
Review and analyze proposed technical solutions for projects
Contribute to formulation of strategies for applications development and other functional areas
Develop comprehensive knowledge of how areas of business integrate to accomplish business goals
Provide evaluative judgment based on analysis of factual data in complicated and unique situations
Ensure essential procedures are followed and contribute to defining standards negotiating with external parties when necessary
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency, as well as effectively supervise the activity of others and create accountability with those who fail to maintain these standards

Fulltime

Senior Software Engineer - Full Stack

As a Full Stack Engineer at Cyngn, you will play a crucial role in developing ou...

Location

United States , Mountain View

Salary:

166500.00 - 198000.00 USD / Year

Cyngn

Expiration Date

Until further notice

Requirements

5+ years of professional software development experience in full stack roles
Strong proficiency in backend development using Python, Go, Java, or similar languages
Solid experience with frontend development using React, Redux, and TypeScript
Familiarity with cloud platforms (AWS, Azure, or GCP) and microservices architectures
Experience with database design and management, both SQL and NoSQL
Knowledge of RESTful API design and implementation
Understanding of event-driven architectures and message queuing systems
Experience with containerization technologies such as Docker and Kubernetes
Familiarity with version control systems (e.g., Git) and CI/CD pipelines
Strong problem-solving skills and ability to debug complex issues across the full stack

Job Responsibility

Develop and maintain both backend and frontend components of our cloud-based fleet management system
Collaborate with Backend and Frontend Tech Leads to implement new features and improve existing functionality
Write clean, efficient, and maintainable code in languages such as Python, Go or Java for backend, and React, Redux and TypeScript for frontend
Contribute to the design and implementation of RESTful APIs and real-time data processing pipelines
Assist in developing and optimizing database schemas and queries for both SQL and NoSQL databases
Implement responsive and intuitive user interfaces
Contribute to the development of advanced mapping features and geospatial data processing
Participate in code reviews, providing constructive feedback to peers
Assist in troubleshooting and resolving production issues across the full stack
Implement and maintain unit tests, integration tests, and end-to-end tests

What we offer

Health benefits (Medical, Dental, Vision, HSA and FSA (Health & Dependent Daycare), Employee Assistance Program, 1:1 Health Concierge)
Life, Short-term and long-term disability insurance (Cyngn funds 100% of premiums)
Company 401(k)
Commuter Benefits
Flexible vacation policy
Remote or hybrid work opportunities
Sabbatical leave opportunity after 5 years with the company
Paid Parental Leave
Daily lunches for in-office employees
Monthly meal and tech allowances for remote employees

Fulltime

Senior Full Stack Engineer

Kiddom is a groundbreaking educational platform that promotes student equity and...

Location

United States , San Francisco Or New York

Salary:

150000.00 - 185000.00 USD / Year

Kiddom

Expiration Date

Until further notice

Requirements

7+ years of professional software development experience
Strong GoLang and Python expertise with ability to design, build, and maintain backend services
Modern React and TypeScript proficiency with understanding of current patterns and best practices
Experience with various state management patterns and knowing when to apply different approaches
Database experience with PostgreSQL, MySQL, and Redis
Full-stack mindset with willingness to work across the entire technology stack

Job Responsibility

Build end-to-end solutions from React/TypeScript frontends to GoLang and Python backend services
Turn vision into reality by taking ambitious product concepts and engineering them into robust, scalable solutions
Dive into hard problems across the full technology stack without hesitation
Lead project initiatives as the technical owner of one or more high-impact user-facing features
Work with advanced technologies including AI/LLM integrations in regular development work
Collaborate closely with small, focused teams to deliver features that directly impact end users
Contribute to technical decisions around architecture, tooling, and implementation approaches

What we offer

Competitive salary
Meaningful equity
Health insurance benefits: medical (various PPO/HMO/HSA plans), dental, vision, disability and life insurance
One Medical membership (in participating locations)
Flexible vacation time policy (subject to internal approval). Average use 4 weeks off per year.
10 paid sick days per year (pro rated depending on start date)
Paid holidays
Paid bereavement leave
Paid family leave after birth/adoption. Minimum of 16 paid weeks for birthing parents, 10 weeks for caretaker parents. Meant to supplement benefits offered by State.
Commuter and FSA plans

Fulltime

Staff Full Stack Engineer, Console

As a full stack engineer, you’ll help shape our best-in-class Console UI. The Co...

Location

United States , New York

Salary:

204000.00 - 250000.00 USD / Year

Materialize

Expiration Date

Until further notice

Requirements

Proven track record as a frontend or full stack technical lead
Strong grasp of frontend architecture, design systems, and developer experience
Strong grasp of backend systems and databases
Familiar with SQL
Experience or interest in taking an AI-forward approach to development
Clear written and verbal communication
Excited to join a small, growing team at a small, growing company

Job Responsibility

Define clean abstractions, patterns, and design systems that make it easy for future collaborators to extend the Console confidently
Write and optimize the SQL queries that power the Console—understanding what’s indexed, what’s materialized, and how data flows through the system
Evolving the Console’s frontend architecture and creating a reference design for how to build data-intensive UIs on top of Materialize
Continuously improve testing, performance, and CI/CD practices
Collaborate with designers, product managers, and database engineers to shape intuitive, data-driven interfaces to manage and operate Materialize
Mentor and support other engineers as the team grows. Help establish shared standards and technical direction

What we offer

Equity

Fulltime

Senior Full Stack Engineer

Maven is on a mission to automate trucking operations and transform how the worl...

Location

United States , Pittsburgh

Salary:

Not provided

Maven Machines

Expiration Date

Until further notice

Requirements

BS/MS/PhD in Computer Science or related field with at least 8 years of relevant experience
Strong coding skills in systems/application programming languages
Strong system design skills and experience with microservice architectures
Experience leading teams through difficult technical decisions and architectural changes
Experience with a variety of database technologies including SQL and NoSQL databases
Experience with AWS and cloud computing
Excellent communication and collaboration skills
Resourceful team player that thrives in a fast-paced environment
Strong logic and trouble-shooting skills
Ability to work with minimal supervision and direction

Job Responsibility

Lead and drive the technical direction of large portions of Maven’s backend/frontend systems including system design / architecture, implementation, and technical debt management
Collaborate with product managers, designers, and engineers to design, develop, document, and deploy robust, enterprise grade products and software
Interface with stakeholders outside of R&D to align business goals with technical initiatives
Spread your knowledge by mentoring fellow engineers, assisting in design and code reviews, and advocating for best practices
Take ownership and participate in all steps of the development process, from design to release and support. This includes occasional on-call responsibilities

What we offer

Competitive compensation
Medical, dental, and vision insurance
401(k) with company match
Generous PTO and paid holidays
Career development opportunities in a high-growth tech company

Fulltime

Lead Software Engineer, Full-stack

Shape the next generation of browser-based 3D technology at scale. Push the boun...

Location

Germany , Munich

Salary:

Not provided

NavVis GmbH

Expiration Date

Until further notice

Requirements

7+ years of professional software development experience, with a proven track record of delivering complex, high-impact systems
Deep expertise in Java, Spring, and modern web application architectures, as well as advanced frontend experience with Angular and TypeScript
Strong knowledge of relational databases (PostgreSQL/PostGIS) and building scalable, data-intensive services
Demonstrated ability to lead architectural decisions, define technical roadmaps, and drive consensus in cross-functional environments
Experience delivering APIs and SDKs and gathering developer feedback to guide future development
Solid cloud infrastructure experience (preferably AWS) and familiarity with modern DevOps practices
Excellent communication and collaboration skills, with the ability to influence technical direction across teams and organizations

Job Responsibility

Architect and guide the evolution of our distributed client-server systems, driving performance, scalability, and maintainability of large-scale 3D rendering and spatial data services
Define and implement technical strategy in collaboration with engineering leads and product stakeholders, shaping how we process, enrich, and deliver geospatial data across the platform
Own critical backend and frontend components—including our Java/Spring services, Angular/TypeScript web client, and PostgreSQL/PostGIS data layer—ensuring robustness, performance, and long-term sustainability
Design and evolve APIs and integration patterns for internal and external use, influencing how partners and third-party developers extend the NavVis ecosystem
Drive cross-team initiatives—from introducing new technologies to improving development practices—with a focus on scalability, automation, and developer experience
Mentor and coach engineers within and beyond your squad, fostering technical excellence, knowledge sharing, and continuous improvement
Champion engineering quality by setting high standards for architecture, testing, observability, and operational readiness across services

What we offer

30 days of paid time off per year
Affordable access to a vast network of fitness and wellness facilities through EGYM Wellpass subsidy
Deutschlandticket subsidy to support sustainable travel using public transport
Flexible working hours and a hybrid work setup
Full visa and relocation support for international candidates
Attractive bike leasing model through JobRad
A competitive compensation package
Up to 4000 EUR employee referral bonus
Financial support for local language classes

Fulltime

Lead Data Integration Specialist / Senior Full Stack Engineer

This young and agile company, providing identity risk solutions, is currently se...

Location

United States , New York

Salary:

Not provided

Orbis Consultants

Expiration Date

Until further notice

Requirements

10+ years of hands-on experience in developing production-ready software
Experience maintaining and working with data integrations / external API sources
Demonstrates skill in manoeuvring both front-end and backend technical projects, adept at prioritising tasks, defining requirements, and facilitating productive discussions within the team
Brings to the table a collaborative mindset, having effectively led engineering teams
Demonstrates a remarkable ability to adapt swiftly to the evolving needs of our growing organisation and dynamic product landscape
Proficient in client-side technologies such as TypeScript, JavaScript (ES6/React), HTML/CSS
Server-side proficiency in Python (Django)
Holds practical experience in managing relational databases, with a strong command over PostgreSQL

Job Responsibility

Design and build a scalable platform that simplifies the creation/operation of hundreds of data partner integrations
Liaise with engineers, designers, and product managers to translate our product and technical vision into a concrete roadmap
Partner with third-party vendors & our clients to gather requirements and co-create solutions
Craft high-quality, thoroughly-tested code that meets the unique requirements of our clients
Provide technical mentorship and guidance to fellow engineers

What we offer

Competitive Salary
Competitive Package
Opportunity to work with an Ambitious, Young, Growing Organisation
Unlimited PTO
Flexible work policy

Fulltime

Full-Stack Engineer (Data)

We are seeking a motivated and talented Full-Stack Engineer with a strong backgr...

Location

United Kingdom

Salary:

Not provided

Spectrum Life

Expiration Date

Until further notice

Requirements

Proven experience as a Full-Stack Engineer, with a strong portfolio of backend-focused or AI-driven projects
Expert proficiency in TypeScript and Node.js, with a deep understanding of modern JavaScript (ES6+), asynchronous programming patterns, and building scalable backend APIs and services
Extensive, hands-on experience architecting and building solutions on the AWS ecosystem. This includes core serverless services (Lambda, API Gateway, S3, EventBridge), databases (RDS, DynamoDB), security (IAM), and infrastructure as code tools (AWS CDK, CloudFormation, or Terraform)
Strong experience in database design and management, with proficiency in both relational (e.g., PostgreSQL) and NoSQL databases. You should be comfortable with schema design, query optimization, and data modeling
A solid understanding of Generative AI concepts and practical experience working with LLMs
Comfortable with the principles of LLM design, including prompt engineering and an understanding of model evaluation techniques
A solid understanding of the full software development lifecycle, including testing, monitoring, and deployment

Job Responsibility

Architectural Ownership & Design: Lead the technical design and architectural decisions for our core AI product. You will take ownership of the entire LLM lifecycle, from model selection and evaluation to deployment and monitoring, ensuring a clear and scalable design
LLM & Backend Engineering: Develop clean, secure, and performant serverless backend services using AWS Lambda and the wider AWS ecosystem
Design, build, and maintain the scaffolding for invoking Large Language Models (LLMs) via services like AWS Bedrock
Compare and evaluate different LLMs to determine the best fit for our use cases, establishing clear metrics and evaluation frameworks
Implement and manage robust data processing and storage solutions to support our AI features
Infrastructure & Best Practices: Design and deploy cloud infrastructure using modern best practices (e.g., Infrastructure as Code)
Implement comprehensive testing, robust exception handling, and application monitoring to ensure the high availability and reliability of our AI services
Take charge of your local development environment and see features through to production, collaborating with the wider team to ensure seamless product integration
Champion and maintain high standards for code quality, scalability, and maintainability

What we offer

Full time permanent contract
Competitive salary (Dependent on experience)
In-office, remote or hybrid working options
25 days annual leave
24/7 EAP and a wide range of health and wellbeing supports
Extensive list of employee perks and benefits

Fulltime

Lead Full Stack Engineer

Apex Systems

Location:
United States , Mclean

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
January 20, 2026

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