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dev-engineering
Mainframe Developer
Resume Example
4.5 / 5
Why This Template Works
This resume format works exceptionally well for Applicant Tracking Systems (ATS) because it includes a clear focus on technical skills such as COBOL and system optimization, along with relevant work experience and achievements that align with the job requirements of a Mainframe Developer. Additionally, the inclusion of professional certifications and continuous learning demonstrates a commitment to staying current in this specialized field. Bold formatting is used to highlight key terms like 'COBOL', 'system optimization', and 'IT professional' which are crucial for ATS recognition.
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How to Write This Resume
Expert guidelines and best practices for each section of your resume.
01
Contact
Contact
First Name Last Name City, State, Zip Code Phone Number | Email Address LinkedIn Profile URL | Portfolio URL (Optional)
General Guidelines
Your contact information is the first section recruiters see. Keep it concise and professional. Ensure your email address is appropriate (e.g., [email protected]). Include your LinkedIn profile for a comprehensive view of your professional journey. A portfolio or personal website is recommended for creative, technical, or design roles.
Avoid This
Do not include your full physical address (street number/name) for privacy reasons. Avoid including personal details like marital status, age, photo, or social security number unless specifically required in your country. Don't use unprofessional email addresses.
Real Examples
See clear examples of how to format contact details effectively.
Don't
John Doe 1234 Random St, Apt 56 New York, NY 10001 [email protected] github.com/aliciacode Single, 28 years old
Do
John Doe New York, NY (555) 123-4567 | [email protected] linkedin.com/in/johndoe | github.com/johndoe | johndoe.dev
Quick Tips
- Use a professional email address (firstname.lastname format)
- Ensure your voicemail is set up and professional
- Double-check your phone number and email for typos
- Make your LinkedIn URL custom (linkedin.com/in/yourname)
- Include GitHub link for developer roles
02
Summary
Summary
Professional Title Result-oriented [Role Name] with [Number] years of experience in [Key Skills/Industries]. Proven track record of [Major Achievement]. Skilled in [Key Technologies/Skills]. Committed to delivering [Specific Value] for [Target Industry/Company type].
General Guidelines
A professional summary is your elevator pitch. It should be 3-5 sentences long, summarizing your experience, key skills, and major achievements. Tailor it to the job description by using relevant keywords. Focus on what makes you unique and the value you bring to potential employers.
Avoid This
Avoid generic objectives like 'Looking for a challenging role to grow my skills.' Recruiters want to know what value you bring to them, not what you want from them. Don't use first-person pronouns (I, me, my). Keep it concise and impactful.
Real Examples
Compare a weak objective with a strong professional summary.
Don't
Objective: I am a hard-working individual looking for a Mainframe Developer position where I can learn new things and advance my career.
Do
Senior Mainframe Developer with 8+ years of experience in COBOL programming and system optimization. Reduced operational costs by 30% through mainframe migration projects. Expert in IBM z/OS, JCL scripting, and API development using Java or Python.
Quick Tips
- Quantify achievements where possible (e.g., 'Increased revenue by 20%')
- Keep it under 5 lines for readability
- Use strong action verbs to start sentences
- Tailor the summary to match the job description
03
Skills
Skills
Technical Skills - Languages: [List] - Frameworks: [List] - Tools: [List] Soft Skills - [Skill 1], [Skill 2], [Skill 3]
General Guidelines
Group your skills logically (e.g., Languages, Frameworks, Tools). Focus on hard skills relevant to the job. List skills in order of proficiency or relevance. Soft skills are better demonstrated through bullet points in your experience section rather than a bare list.
Avoid This
Do not list skills you are not comfortable using in an interview. Avoid using progress bars or percentages to rate your skills (e.g., "Java: 80%"). Do not include outdated technologies unless specifically required.
Real Examples
Practical example showing do's and don'ts for skills
Don't
COBOL, JCL, PL/I (Intermediate), Python (Basic)
Do
Languages: COBOL, JCL Frameworks: None applicable Tools: DB2, AWS Mainframes
Quick Tips
- List your programming languages separately from other tools and technologies.
- Prioritize mainframe-specific skills such as COBOL, JCL, and DB2 over generalist skills like Python or Java unless they are directly relevant to cloud integration projects.
- Include a section for soft skills but do not clutter it with too many items; focus on communication, problem-solving, and leadership capabilities that complement your technical expertise.
- Keep the list concise. Hiring managers typically skim this section looking for quick indicators of skill proficiency.
04
Experience
Experience
Job Title | Company Name | Location Month Year – Month Year - Action Verb + Context + Result (Quantified) - Led [Project] resulting in [Outcome]... - Collaborated with [Team] to implement [Feature]...
General Guidelines
This is the core of your resume. Use reverse-chronological order (most recent first). Start each bullet with a strong action verb. Focus on achievements and impact, not just duties. Use numbers to quantify your impact (dollars, percentages, time saved, users affected). Show progression and increasing responsibility.
Avoid This
Avoid passive language like "Responsible for..." or "Tasked with...." Don't list every single daily task; focus on significant contributions and measurable outcomes. Avoid jargon that recruiters outside your field won't understand.
Real Examples
Practical example showing do's and don'ts for experiences
Don't
Developed scripts to automate mainframe backups.
Do
Automated mainframe backup processes, reducing backup time by 60%.
Don't
Worked on system bugs that affected production.
Do
Identified and resolved critical system bugs, preventing $1M in potential losses.
Quick Tips
- Start each bullet point with a strong action verb like 'Led', 'Developed', or 'Optimized' to make your achievements stand out.
- Include quantifiable results for each achievement. Numbers speak louder than words and provide concrete evidence of your impact.
- Highlight progressive responsibilities by showcasing how you moved from basic tasks in internships to leading projects and teams as you advanced in your career.
- Avoid generic phrases like 'Responsible for' or 'Managed'. Instead, focus on the specific outcomes you achieved.
05
Education
Education
Degree Name | University Name | Location Month Year – Month Year - Relevant Coursework: [Course 1], [Course 2] - Honors/Awards: [Award Name] - GPA: X.X (if above 3.5)
General Guidelines
List your highest degree first. If you have significant work experience, keep the education section brief. Include your GPA only if it is above 3.5 or if you are a recent graduate. Highlight relevant coursework, academic projects, honors, or leadership roles.
Avoid This
Do not include high school details if you have a college degree. Avoid listing every single course you took; select only the most relevant ones. Don't include graduation dates from decades ago if age discrimination is a concern in your field.
Real Examples
Practical example showing do's and don'ts for educations
Don't
Bachelor of Science | University Name | Anytown, CA September 2013 - May 2017 - Courses: Calculus I, Introduction to Literature, Intermediate French - Leadership Role: President of the Student Council (2016-2017) - GPA: 3.8
Do
Bachelor of Science in Computer Science | San Francisco State University | San Francisco, CA September 2013 - May 2017 - Relevant Coursework: COBOL Programming, Database Systems, Cloud Computing - Honors/Awards: Dean's List (Spring 2015) - GPA: 3.8
Quick Tips
- Start with your most recent or highest degree and work backwards.
- Mention only relevant coursework that is closely related to the job you are applying for.
- Include honors, awards, and academic achievements if they add value to your application.
- Exclude graduation dates from degrees obtained decades ago unless necessary.
06
Projects
Projects
Project Name | Technologies Used - Briefly describe what you built and its purpose - Highlight a specific technical challenge you solved - Link to GitHub or live demo if available
General Guidelines
Projects are excellent for demonstrating practical skills, especially if you lack work experience or are changing careers. Include a link to the GitHub repo or live demo if possible. Focus on projects that show problem-solving skills and relevant technologies for the target role.
Avoid This
Don't include trivial tutorials unless you significantly expanded on them. Avoid projects that are outdated, incomplete, or irrelevant to the role you're applying for. Don't just list technologies—explain what you built and why it matters.
Real Examples
Practical example showing do's and don'ts for projects
Don't
Created a basic 'Hello World' COBOL program following an online tutorial with no custom modifications or improvements made.
Do
Developed a Python-based tool that automatically analyzes and optimizes COBOL code, reducing CPU usage by 20% in legacy systems. Utilized DB2 for database optimization.
Quick Tips
- Highlight projects that demonstrate your ability to solve complex problems using mainframe technologies such as COBOL, JCL, and DB2.
- Include projects that show your experience with modern cloud integration tools like z/OS Connect EE or AWS Mainframes.
- Ensure each project showcases a specific technical challenge you overcame, and explain the business impact of your solution.
- Always provide links to GitHub repositories or live demos whenever possible to allow potential employers to see your work in action.
Frequently Asked Questions
Common questions about this role and how to best present it on your resume.
Essential skills include proficiency in COBOL, JCL, and mainframe operating systems like z/OS.
Highlight transferable skills such as programming, system administration, or project management from your previous industry.
Certifications like IBM Certified Application Developer - COBOL and CompTIA Security+ can enhance your profile.
Include links to GitHub repositories or mention specific contributions to mainframe applications in a concise manner.
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